Documentation ¶
Overview ¶
Package gdal provides a wrapper for GDAL, the Geospatial Data Abstraction Library. This C/C++ library provides access to a large number of geospatial raster data formats. It also contains a wrapper for the related OGR Simple Feature Library which provides similar functionality for vector formats.
Limitations ¶
Some less oftenly used functions are not yet implemented. The majoriry of these involve style tables, asynchronous I/O, and GCPs.
The documentation is fairly limited, but the functionality fairly closely matches that of the C++ api.
This wrapper has only been tested on 64-bit Ubuntu Linux, with version 1.9.1 of the GDAL library.
Usage ¶
A simple program to create a georeferenced blank 256x256 GeoTIFF:
package main import ( "fmt" "flag" gdal "github.com/lukeroth/gdal_go" ) func main() { flag.Parse() filename := flag.Arg(0) if filename == "" { fmt.Printf("Usage: test_tiff [filename]\n") return } buffer := make([]uint8, 256 * 256) driver, err := gdal.GetDriverByName("GTiff") if err != nil { fmt.Println(err.Error()) return } dataset := driver.Create(filename, 256, 256, 1, gdal.Byte, nil) defer dataset.Close() spatialRef := gdal.CreateSpatialReference("") spatialRef.FromEPSG(3857) srString, err := spatialRef.ToWKT() dataset.SetProjection(srString) dataset.SetGeoTransform([]float64{444720, 30, 0, 3751320, 0, -30}) raster := dataset.RasterBand(1) raster.IO(gdal.Write, 0, 0, 256, 256, buffer, 256, 256, 0, 0) }
More examples can be found in the ./examples subdirectory.
Index ¶
- Constants
- func BoolToCInt(in bool) (out C.int)
- func CleanupOGR()
- func CleanupSR()
- func ComputeMedianCutPCT(red, green, blue RasterBand, colors int, ct ColorTable, progress ProgressFunc, ...) int
- func CreateScaledProgress(min, max float64, progress ProgressFunc, data unsafe.Pointer) unsafe.Pointer
- func DestroyDriverManager()
- func DestroyScaledProgress(data unsafe.Pointer)
- func DitherRGB2PCT(red, green, blue, target RasterBand, ct ColorTable, progress ProgressFunc, ...) int
- func DummyProgress(complete float64, message string, data interface{}) int
- func FlushCacheBlock() bool
- func GetCacheMax() int
- func GetCacheUsed() int
- func GetDriverCount() int
- func OGRDriverCount() int
- func OpenDataSourceCount() int
- func ParameterInfo(projectionMethod, parameterName string) (username, paramType string, defaultValue float64, ok bool)
- func ParameterList(method string) (params []string, name string)
- func ProjectionMethods() []string
- func ScaledProgress(complete float64, message string, data interface{}) int
- func SetCacheMax(bytes int)
- func TermProgress(complete float64, message string, data interface{}) int
- type Access
- type AsyncReader
- type AsyncStatusType
- type ColorEntry
- type ColorInterp
- type ColorTable
- func (ct ColorTable) Clone() ColorTable
- func (ct ColorTable) CreateColorRamp(start, end int, startColor, endColor ColorEntry)
- func (ct ColorTable) Destroy()
- func (ct ColorTable) Entry(index int) ColorEntry
- func (ct ColorTable) EntryCount() int
- func (ct ColorTable) PaletteInterpretation() PaletteInterp
- func (ct ColorTable) SetEntry(index int, entry ColorEntry)
- type CoordinateTransform
- type DataSource
- func (ds DataSource) CopyLayer(source Layer, name string, options []string) Layer
- func (ds DataSource) CreateLayer(name string, sr SpatialReference, geomType GeometryType, options []string) Layer
- func (ds DataSource) Delete(index int) error
- func (ds DataSource) Destroy()
- func (ds DataSource) Driver() OGRDriver
- func (ds DataSource) ExecuteSQL(sql string, filter Geometry, dialect string) Layer
- func (ds DataSource) LayerByIndex(index int) Layer
- func (ds DataSource) LayerByName(name string) Layer
- func (ds DataSource) LayerCount() int
- func (ds DataSource) Name() string
- func (ds DataSource) Release() error
- func (ds DataSource) ReleaseResultSet(layer Layer)
- func (ds DataSource) Sync() error
- func (ds DataSource) TestCapability(capability string) bool
- type DataType
- type Dataset
- func (dataset Dataset) Access() Access
- func (dataset Dataset) AddBand(dataType DataType, options []string) error
- func (dataset Dataset) AdviseRead(rwFlag RWFlag, xOff, yOff, xSize, ySize, bufXSize, bufYSize int, ...) error
- func (dataset Dataset) AutoCreateWarpedVRT(srcWKT, dstWKT string, resampleAlg ResampleAlg) (Dataset, error)
- func (dataset Dataset) BuildOverviews(resampling string, nOverviews int, overviewList []int, nBands int, ...) error
- func (dataset Dataset) Close()
- func (sourceDataset Dataset) CopyWholeRaster(destDataset Dataset, options []string, progress ProgressFunc, data interface{}) error
- func (dataset Dataset) CreateMaskBand(flags int) error
- func (dataset Dataset) Driver() Driver
- func (dataset Dataset) FlushCache()
- func (dataset Dataset) GDALDereferenceDataset() int
- func (dataset Dataset) GDALGetGCPCount() int
- func (dataset Dataset) GDALGetInternalHandle(request string) unsafe.Pointer
- func (dataset Dataset) GDALReferenceDataset() int
- func (dataset Dataset) GeoTransform() [6]float64
- func (dataset Dataset) IO(rwFlag RWFlag, xOff, yOff, xSize, ySize int, buffer interface{}, ...) error
- func (dataset Dataset) Projection() string
- func (dataset Dataset) RasterBand(band int) RasterBand
- func (dataset Dataset) RasterCount() int
- func (dataset Dataset) RasterXSize() int
- func (dataset Dataset) RasterYSize() int
- func (dataset Dataset) SetGeoTransform(transform [6]float64) error
- func (object *Dataset) SetMetadataItem(name, value, domain string) error
- func (dataset Dataset) SetProjection(proj string) error
- type Driver
- func (driver Driver) CopyDatasetFiles(newName, oldName string) error
- func (driver Driver) Create(filename string, xSize, ySize, bands int, dataType DataType, options []string) Dataset
- func (driver Driver) CreateCopy(filename string, sourceDataset Dataset, strict int, options []string, ...) Dataset
- func (driver Driver) DeleteDataset(name string) error
- func (driver Driver) Deregister()
- func (driver Driver) Destroy()
- func (driver Driver) Register() int
- func (driver Driver) RenameDataset(newName, oldName string) error
- type Envelope
- func (env Envelope) Contains(other Envelope) bool
- func (env Envelope) Intersect(other Envelope)
- func (env Envelope) Intersects(other Envelope) bool
- func (env Envelope) IsInit() bool
- func (env Envelope) MaxX() float64
- func (env Envelope) MaxY() float64
- func (env Envelope) MinX() float64
- func (env Envelope) MinY() float64
- func (env *Envelope) SetMaxX(val float64)
- func (env *Envelope) SetMaxY(val float64)
- func (env *Envelope) SetMinX(val float64)
- func (env *Envelope) SetMinY(val float64)
- func (env Envelope) Union(other Envelope)
- type Feature
- func (feature Feature) Clone() Feature
- func (feature Feature) Definition() FeatureDefinition
- func (feature Feature) Destroy()
- func (f1 Feature) Equal(f2 Feature) bool
- func (feature Feature) FID() int
- func (feature Feature) FieldAsBinary(index int) []uint8
- func (feature Feature) FieldAsDateTime(index int) (time.Time, bool)
- func (feature Feature) FieldAsFloat64(index int) float64
- func (feature Feature) FieldAsFloat64List(index int) []float64
- func (feature Feature) FieldAsInteger(index int) int
- func (feature Feature) FieldAsIntegerList(index int) []int
- func (feature Feature) FieldAsString(index int) string
- func (feature Feature) FieldAsStringList(index int) []string
- func (feature Feature) FieldCount() int
- func (feature Feature) FieldDefinition(index int) FieldDefinition
- func (feature Feature) FieldIndex(name string) int
- func (feature Feature) Geometry() Geometry
- func (feature Feature) IsFieldSet(index int) bool
- func (feature Feature) RawField(index int) Field
- func (feature Feature) SetFID(fid int) error
- func (feature Feature) SetFieldBinary(index int, value []uint8)
- func (feature Feature) SetFieldDateTime(index int, dt time.Time)
- func (feature Feature) SetFieldFloat64(index int, value float64)
- func (feature Feature) SetFieldFloat64List(index int, value []float64)
- func (feature Feature) SetFieldInteger(index, value int)
- func (feature Feature) SetFieldIntegerList(index int, value []int)
- func (feature Feature) SetFieldRaw(index int, field Field)
- func (feature Feature) SetFieldString(index int, value string)
- func (feature Feature) SetFieldStringList(index int, value []string)
- func (this Feature) SetFrom(other Feature, forgiving int) error
- func (this Feature) SetFromWithMap(other Feature, forgiving int, fieldMap []int) error
- func (feature Feature) SetGeometry(geom Geometry) error
- func (feature Feature) SetGeometryDirectly(geom Geometry) error
- func (feature Feature) SetStyleString(style string)
- func (feature Feature) StealGeometry() Geometry
- func (feature Feature) StlyeString() string
- func (feature Feature) UnnsetField(index int)
- type FeatureDefinition
- func (fd FeatureDefinition) AddFieldDefinition(fieldDefn FieldDefinition)
- func (fd FeatureDefinition) Create() Feature
- func (fd FeatureDefinition) DeleteFieldDefinition(index int) error
- func (fd FeatureDefinition) Dereference() int
- func (fd FeatureDefinition) Destroy()
- func (fd FeatureDefinition) FieldCount() int
- func (fd FeatureDefinition) FieldDefinition(index int) FieldDefinition
- func (fd FeatureDefinition) FieldIndex(name string) int
- func (fd FeatureDefinition) GeometryType() GeometryType
- func (fd FeatureDefinition) IsGeometryIgnored() bool
- func (fd FeatureDefinition) IsStyleIgnored() bool
- func (fd FeatureDefinition) Name() string
- func (fd FeatureDefinition) Reference() int
- func (fd FeatureDefinition) ReferenceCount() int
- func (fd FeatureDefinition) Release()
- func (fd FeatureDefinition) SetGeometryIgnored(val bool)
- func (fd FeatureDefinition) SetGeometryType(geomType GeometryType)
- func (fd FeatureDefinition) SetStyleIgnored(val bool)
- type Field
- type FieldDefinition
- func (fd FieldDefinition) Destroy()
- func (fd FieldDefinition) IsIgnored() bool
- func (fd FieldDefinition) Justification() Justification
- func (fd FieldDefinition) Name() string
- func (fd FieldDefinition) Precision() int
- func (fd FieldDefinition) Set(name string, fType FieldType, width, precision int, justify Justification)
- func (fd FieldDefinition) SetIgnored(ignore bool)
- func (fd FieldDefinition) SetJustification(justify Justification)
- func (fd FieldDefinition) SetName(name string)
- func (fd FieldDefinition) SetPrecision(precision int)
- func (fd FieldDefinition) SetType(fType FieldType)
- func (fd FieldDefinition) SetWidth(width int)
- func (fd FieldDefinition) Type() FieldType
- func (fd FieldDefinition) Width() int
- type FieldType
- type Geometry
- func (geom Geometry) AddGeometry(other Geometry) error
- func (geom Geometry) AddGeometryDirectly(other Geometry) error
- func (geom Geometry) AddPoint(x, y, z float64)
- func (geom Geometry) AddPoint2D(x, y float64)
- func (geom Geometry) Area() float64
- func (geom Geometry) Boundary() Geometry
- func (geom Geometry) Buffer(distance float64, segments int) Geometry
- func (geom Geometry) BuildPolygonFromEdges(autoClose bool, tolerance float64) (Geometry, error)
- func (geom Geometry) Centroid() Geometry
- func (geom Geometry) Clone() Geometry
- func (geom Geometry) CloseRings()
- func (geom Geometry) Contains(other Geometry) bool
- func (geom Geometry) ConvexHull() Geometry
- func (geom Geometry) CoordinateDimension() int
- func (geom Geometry) Crosses(other Geometry) bool
- func (geometry Geometry) Destroy()
- func (geom Geometry) Difference(other Geometry) Geometry
- func (geom Geometry) Dimension() int
- func (geom Geometry) Disjoint(other Geometry) bool
- func (geom Geometry) Distance(other Geometry) float64
- func (geom Geometry) Empty()
- func (geom Geometry) Envelope() Envelope
- func (geom Geometry) Equals(other Geometry) bool
- func (geom Geometry) FlattenTo2D()
- func (geom Geometry) ForceToMultiLineString() Geometry
- func (geom Geometry) ForceToMultiPoint() Geometry
- func (geom Geometry) ForceToMultiPolygon() Geometry
- func (geom Geometry) ForceToPolygon() Geometry
- func (geom Geometry) FromWKB(wkb []uint8, bytes int) error
- func (geom Geometry) FromWKT(wkt string) error
- func (geom Geometry) Geometry(index int) Geometry
- func (geom Geometry) GeometryCount() int
- func (geom Geometry) Intersection(other Geometry) Geometry
- func (geom Geometry) Intersects(other Geometry) bool
- func (geom Geometry) IsEmpty() bool
- func (geom Geometry) IsRing() bool
- func (geom Geometry) IsSimple() bool
- func (geom Geometry) IsValid() bool
- func (geom Geometry) Length() float64
- func (geom Geometry) Name() string
- func (geom Geometry) Overlaps(other Geometry) bool
- func (geom Geometry) Point(index int) (x, y, z float64)
- func (geom Geometry) PointCount() int
- func (geom Geometry) Polygonize() Geometry
- func (geom Geometry) RemoveGeometry(index int, delete bool) error
- func (geom Geometry) Segmentize(distance float64)
- func (geom Geometry) SetCoordinateDimension(dim int)
- func (geom Geometry) SetPoint(index int, x, y, z float64)
- func (geom Geometry) SetPoint2D(index int, x, y float64)
- func (geom Geometry) SetSpatialReference(spatialRef SpatialReference)
- func (geom Geometry) Simplify(tolerance float64) Geometry
- func (geom Geometry) SimplifyPreservingTopology(tolerance float64) Geometry
- func (geom Geometry) SpatialReference() SpatialReference
- func (geom Geometry) SymmetricDifference(other Geometry) Geometry
- func (geom Geometry) ToGML() string
- func (geom Geometry) ToGML_Ex(options []string) string
- func (geom Geometry) ToJSON() string
- func (geom Geometry) ToJSON_ex(options []string) string
- func (geom Geometry) ToKML() string
- func (geom Geometry) ToWKT() (string, error)
- func (geom Geometry) Touches(other Geometry) bool
- func (geom Geometry) Transform(ct CoordinateTransform) error
- func (geom Geometry) TransformTo(sr SpatialReference) error
- func (geom Geometry) Type() GeometryType
- func (geom Geometry) Union(other Geometry) Geometry
- func (geom Geometry) WKBSize() int
- func (geom Geometry) Within(other Geometry) bool
- func (geom Geometry) X(index int) float64
- func (geom Geometry) Y(index int) float64
- func (geom Geometry) Z(index int) float64
- type GeometryType
- type Justification
- type Layer
- func (layer Layer) AlterFieldDefn(index int, newDefn FieldDefinition, flags int) error
- func (layer Layer) CommitTransaction() error
- func (layer Layer) Create(feature Feature) error
- func (layer Layer) CreateField(fd FieldDefinition, approxOK bool) error
- func (layer Layer) Definition() FeatureDefinition
- func (layer Layer) Delete(index int) error
- func (layer Layer) DeleteField(index int) error
- func (layer Layer) Extent(force bool) (env Envelope, err error)
- func (layer Layer) FIDColumn() string
- func (layer Layer) Feature(index int) Feature
- func (layer Layer) FeatureCount(force bool) (count int, ok bool)
- func (layer Layer) GeometryColumn() string
- func (layer Layer) Name() string
- func (layer Layer) NextFeature() Feature
- func (layer Layer) ReorderField(oldIndex, newIndex int) error
- func (layer Layer) ReorderFields(layerMap []int) error
- func (layer Layer) ResetReading()
- func (layer Layer) RollbackTransaction() error
- func (layer Layer) SetAttributeFilter(filter string) error
- func (layer Layer) SetFeature(feature Feature) error
- func (layer Layer) SetIgnoredFields(names []string) error
- func (layer Layer) SetNextByIndex(index int) error
- func (layer Layer) SetSpatialFilter(filter Geometry)
- func (layer Layer) SetSpatialFilterRect(minX, minY, maxX, maxY float64)
- func (layer Layer) SpatialFilter() Geometry
- func (layer Layer) SpatialReference() SpatialReference
- func (layer Layer) StartTransaction() error
- func (layer Layer) Sync() error
- func (layer Layer) TestCapability(capability string) bool
- func (layer Layer) Type() GeometryType
- type MajorObject
- func (object MajorObject) Description() string
- func (object MajorObject) Metadata(domain string) []string
- func (object MajorObject) MetadataItem(name, domain string) string
- func (object MajorObject) SetDescription(desc string)
- func (object MajorObject) SetMetadata(metadata []string, domain string)
- func (object MajorObject) SetMetadataItem(name, value, domain string)
- type OGRDriver
- func (driver OGRDriver) Copy(source DataSource, name string, options []string) (newDS DataSource, ok bool)
- func (driver OGRDriver) Create(name string, options []string) (newDS DataSource, ok bool)
- func (driver OGRDriver) Delete(filename string) error
- func (driver OGRDriver) Deregister()
- func (driver OGRDriver) Name() string
- func (driver OGRDriver) Open(filename string, update int) (newDS DataSource, ok bool)
- func (driver OGRDriver) Register()
- func (driver OGRDriver) TestCapability(capability string) bool
- type PaletteInterp
- type ProgressFunc
- type RATFieldType
- type RATFieldUsage
- type RWFlag
- type RasterAttributeTable
- func (rat RasterAttributeTable) ColOfUsage(rfu RATFieldUsage) int
- func (rat RasterAttributeTable) ColumnCount() int
- func (rat RasterAttributeTable) CreateColumn(name string, rft RATFieldType, rfu RATFieldUsage) error
- func (rat RasterAttributeTable) Destroy()
- func (rat RasterAttributeTable) FromColorTable(ct ColorTable) error
- func (rat RasterAttributeTable) LinearBinning() (row0min, binsize float64, exists bool)
- func (rat RasterAttributeTable) NameOfCol(index int) string
- func (rat RasterAttributeTable) RowCount() int
- func (rat RasterAttributeTable) RowOfValue(val float64) (int, bool)
- func (rat RasterAttributeTable) SetLinearBinning(row0min, binsize float64) error
- func (rat RasterAttributeTable) SetRowCount(count int)
- func (rat RasterAttributeTable) SetValueAsFloat64(row, field int, val float64)
- func (rat RasterAttributeTable) SetValueAsInt(row, field, val int)
- func (rat RasterAttributeTable) SetValueAsString(row, field int, val string)
- func (rat RasterAttributeTable) ToColorTable(count int) ColorTable
- func (rat RasterAttributeTable) TypeOfCol(index int) RATFieldType
- func (rat RasterAttributeTable) UsageOfCol(index int) RATFieldUsage
- func (rat RasterAttributeTable) ValueAsFloat64(row, field int) float64
- func (rat RasterAttributeTable) ValueAsInt(row, field int) int
- func (rat RasterAttributeTable) ValueAsString(row, field int) string
- type RasterBand
- func (rasterBand RasterBand) AdviseRead(xOff, yOff, xSize, ySize, bufXSize, bufYSize int, dataType DataType, ...) error
- func (rasterBand RasterBand) BandNumber() int
- func (rasterBand RasterBand) BlockSize() (int, int)
- func (rasterBand RasterBand) CategoryNames() []string
- func (rb RasterBand) Checksum(xOff, yOff, xSize, ySize int) int
- func (rasterBand RasterBand) ColorInterp() ColorInterp
- func (rasterBand RasterBand) ColorTable() ColorTable
- func (rasterBand RasterBand) ComputeMinMax(approxOK int) (min, max float64)
- func (src RasterBand) ComputeProximity(dest RasterBand, options []string, progress ProgressFunc, data interface{}) error
- func (rasterBand RasterBand) ComputeStatistics(approxOK int, progress ProgressFunc, data interface{}) (min, max, mean, stdDev float64)
- func (rasterBand RasterBand) CreateMaskBand(flags int) error
- func (rb RasterBand) DefaultHistogram(force int, progress ProgressFunc, data interface{}) (min, max float64, buckets int, histogram []int, err error)
- func (src RasterBand) FPolygonize(mask RasterBand, layer Layer, fieldIndex int, options []string, ...) error
- func (rasterBand RasterBand) Fill(real, imaginary float64) error
- func (src RasterBand) FillNoData(mask RasterBand, distance float64, iterations int, options []string, ...) error
- func (rasterBand RasterBand) FlushCache()
- func (rasterBand RasterBand) GetAccess() Access
- func (rasterBand RasterBand) GetDataset() Dataset
- func (rasterBand RasterBand) GetDefaultRAT() RasterAttributeTable
- func (rasterBand RasterBand) GetMaskBand() RasterBand
- func (rasterBand RasterBand) GetMaskFlags() int
- func (rasterBand RasterBand) GetMaximum() (val float64, valid bool)
- func (rasterBand RasterBand) GetMinimum() (val float64, valid bool)
- func (rasterBand RasterBand) GetOffset() (float64, bool)
- func (rasterBand RasterBand) GetScale() (float64, bool)
- func (rasterBand RasterBand) GetStatistics(approxOK, force int) (min, max, mean, stdDev float64)
- func (rasterBand RasterBand) GetUnitType() string
- func (rasterBand RasterBand) HasArbitraryOverviews() int
- func (rb RasterBand) Histogram(min, max float64, buckets int, includeOutOfRange, approxOK int, ...) ([]int, error)
- func (rasterBand RasterBand) IO(rwFlag RWFlag, xOff, yOff, xSize, ySize int, buffer interface{}, ...) error
- func (rasterBand RasterBand) NoDataValue() (val float64, valid bool)
- func (rasterBand RasterBand) Overview(level int) RasterBand
- func (rasterBand RasterBand) OverviewCount() int
- func (src RasterBand) Polygonize(mask RasterBand, layer Layer, fieldIndex int, options []string, ...) error
- func (sourceRaster RasterBand) RasterBandCopyWholeRaster(destRaster RasterBand, options []string, progress ProgressFunc, ...) error
- func (rasterBand RasterBand) RasterDataType() DataType
- func (rasterBand RasterBand) ReadBlock(xOff, yOff int, dataPtr unsafe.Pointer) error
- func (rasterBand RasterBand) SetColorInterp(colorInterp ColorInterp) error
- func (rasterBand RasterBand) SetColorTable(colorTable ColorTable) error
- func (rasterBand RasterBand) SetDefaultRAT(rat RasterAttributeTable) error
- func (object *RasterBand) SetMetadataItem(name, value, domain string) error
- func (rasterBand RasterBand) SetNoDataValue(val float64) error
- func (rasterBand RasterBand) SetOffset(offset float64) error
- func (rasterBand RasterBand) SetRasterCategoryNames(names []string) error
- func (rasterBand RasterBand) SetScale(scale float64) error
- func (rasterBand RasterBand) SetStatistics(min, max, mean, stdDev float64) error
- func (rasterBand RasterBand) SetUnitType(unit string) error
- func (src RasterBand) SieveFilter(mask, dest RasterBand, threshold, connectedness int, options []string, ...) error
- func (rasterBand RasterBand) WriteBlock(xOff, yOff int, dataPtr unsafe.Pointer) error
- func (rasterBand RasterBand) XSize() int
- func (rasterBand RasterBand) YSize() int
- type ResampleAlg
- type SpatialReference
- func (sr SpatialReference) AngularUnits() (string, float64)
- func (sr SpatialReference) AttrValue(key string, child int) (value string, ok bool)
- func (sr SpatialReference) AuthorityCode(target string) string
- func (sr SpatialReference) AuthorityName(target string) string
- func (sr SpatialReference) AutoIdentifyEPSG() error
- func (sr SpatialReference) Clone() SpatialReference
- func (sr SpatialReference) CloneGeogCS() SpatialReference
- func (sr SpatialReference) CopyGeographicCSFrom(other SpatialReference) error
- func (sr SpatialReference) Dereference() int
- func (sr SpatialReference) Destroy()
- func (sr SpatialReference) EPSGTreatsAsLatLong() bool
- func (sr SpatialReference) Fixup() error
- func (sr SpatialReference) FixupOrdering() error
- func (sr SpatialReference) FromEPSG(code int) error
- func (sr SpatialReference) FromEPSGA(code int) error
- func (sr SpatialReference) FromERM(proj, datum, units string) error
- func (sr SpatialReference) FromESRI(input string) error
- func (sr SpatialReference) FromPCI(proj, units string, params []float64) error
- func (sr SpatialReference) FromProj4(input string) error
- func (sr SpatialReference) FromURL(url string) error
- func (sr SpatialReference) FromUSGS(projsys, zone int, params []float64, datum int) error
- func (sr SpatialReference) FromWKT(wkt string) error
- func (sr SpatialReference) FromXML(xml string) error
- func (sr SpatialReference) InverseFlattening() (float64, error)
- func (sr SpatialReference) IsCompound() bool
- func (sr SpatialReference) IsGeocentric() bool
- func (sr SpatialReference) IsGeographic() bool
- func (sr SpatialReference) IsLocal() bool
- func (sr SpatialReference) IsProjected() bool
- func (sr SpatialReference) IsSame(other SpatialReference) bool
- func (sr SpatialReference) IsSameGeographicCS(other SpatialReference) bool
- func (sr SpatialReference) IsSameVerticalCS(other SpatialReference) bool
- func (sr SpatialReference) IsVertical() bool
- func (sr SpatialReference) LinearUnits() (string, float64)
- func (sr SpatialReference) MorphFromESRI() error
- func (sr SpatialReference) MorphToESRI() error
- func (sr SpatialReference) NormalizedProjectionParameter(name string, defaultValue float64) (float64, error)
- func (sr SpatialReference) PrimeMeridian() (string, float64)
- func (sr SpatialReference) ProjectionParameter(name string, defaultValue float64) (float64, error)
- func (sr SpatialReference) Reference() int
- func (sr SpatialReference) Release()
- func (sr SpatialReference) SemiMajorAxis() (float64, error)
- func (sr SpatialReference) SemiMinorAxis() (float64, error)
- func (sr SpatialReference) SetACEA(stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetAE(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetAngularUnits(units string, radians float64) error
- func (sr SpatialReference) SetAttrValue(path, value string) error
- func (sr SpatialReference) SetAuthority(target, authority string, code int) error
- func (sr SpatialReference) SetBonne(standardParallel, centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetCEA(stdp1, centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetCS(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetCompoundCS(name string, horizontal, vertical SpatialReference) error
- func (sr SpatialReference) SetEC(stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetEckert(variation int, centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetEquirectangular(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetEquirectangularGeneralized(centerLat, centerLong, psuedoStdParallel, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetFromUserInput(name string) error
- func (sr SpatialReference) SetGEOS(centralMeridian, satelliteHeight, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetGH(centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetGS(centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetGSTM(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetGeocentricCS(name string) error
- func (sr SpatialReference) SetGeographicCS(geogName, datumName, spheroidName string, semiMajor, flattening float64, ...) error
- func (sr SpatialReference) SetGnomonic(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetHOM(...) error
- func (sr SpatialReference) SetHOM2PNO(...) error
- func (sr SpatialReference) SetIGH() error
- func (sr SpatialReference) SetIWMPolyconic(lat1, lat2, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetKrovak(...) error
- func (sr SpatialReference) SetLAEA(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetLCC(stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetLCC1SP(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetLCCB(stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetLinearUnits(name string, toMeters float64) error
- func (sr SpatialReference) SetLinearUnitsAndUpdateParameters(name string, toMeters float64) error
- func (sr SpatialReference) SetLocalCS(name string) error
- func (sr SpatialReference) SetMC(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetMercator(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetMollweide(centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetNZMG(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetNormalizedProjectionParameter(name string, value float64) error
- func (sr SpatialReference) SetOS(originLat, meridian, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetOrthographic(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetPS(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetPolyconic(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetProjectedCS(name string) error
- func (sr SpatialReference) SetProjectionByName(name string) error
- func (sr SpatialReference) SetProjectionParameter(name string, value float64) error
- func (sr SpatialReference) SetRobinson(centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetSOC(latitudeOfOrigin, centralMeridian, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetSinusoidal(centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetStatePlane(zone int, nad83 bool) error
- func (sr SpatialReference) SetStatePlaneWithUnits(zone int, nad83 bool, unitName string, factor float64) error
- func (sr SpatialReference) SetStereographic(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetTM(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetTMG(centerLat, centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetTMSO(centerLat, centerLong, scale, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetTMVariant(variantName string, ...) error
- func (sr SpatialReference) SetTOWGS84(dx, dy, dz, ex, ey, ez, ppm float64) error
- func (sr SpatialReference) SetTargetLinearUnits(target, units string, toMeters float64) error
- func (sr SpatialReference) SetUTM(zone int, north bool) error
- func (sr SpatialReference) SetVDG(centerLong, falseEasting, falseNorthing float64) error
- func (sr SpatialReference) SetVerticalCS(csName, datumName string, datumType int) error
- func (sr SpatialReference) SetWellKnownGeographicCS(name string) error
- func (sr SpatialReference) StripCTParams() error
- func (sr SpatialReference) TOWGS84() (coeff [7]float64, errVal error)
- func (sr SpatialReference) TargetLinearUnits(target string) (string, float64)
- func (sr SpatialReference) ToMICoordSys() (output string, errVal error)
- func (sr SpatialReference) ToPCI() (proj, units string, params []float64, errVal error)
- func (sr SpatialReference) ToPrettyWKT(simplify bool) (string, error)
- func (sr SpatialReference) ToProj4() (string, error)
- func (sr SpatialReference) ToUSGS() (proj, zone int, params []float64, datum int, errVal error)
- func (sr SpatialReference) ToWKT() (string, error)
- func (sr SpatialReference) ToXML() (xml string, errVal error)
- func (sr SpatialReference) UTMZone() (zone int, north bool)
- func (sr SpatialReference) Validate() error
- type StyleMgr
- type StyleTable
- type StyleTool
Constants ¶
const ( VERSION_MAJOR = int(C.GDAL_VERSION_MAJOR) VERSION_MINOR = int(C.GDAL_VERSION_MINOR) VERSION_REV = int(C.GDAL_VERSION_REV) VERSION_BUILD = int(C.GDAL_VERSION_BUILD) VERSION_NUM = int(C.GDAL_VERSION_NUM) RELEASE_DATE = int(C.GDAL_RELEASE_DATE) RELEASE_NAME = string(C.GDAL_RELEASE_NAME) )
const ( Unknown = DataType(C.GDT_Unknown) Byte = DataType(C.GDT_Byte) UInt16 = DataType(C.GDT_UInt16) Int16 = DataType(C.GDT_Int16) UInt32 = DataType(C.GDT_UInt32) Int32 = DataType(C.GDT_Int32) Float32 = DataType(C.GDT_Float32) Float64 = DataType(C.GDT_Float64) CInt16 = DataType(C.GDT_CInt16) CInt32 = DataType(C.GDT_CInt32) CFloat32 = DataType(C.GDT_CFloat32) CFloat64 = DataType(C.GDT_CFloat64) )
const ( AR_Pending = AsyncStatusType(C.GARIO_PENDING) AR_Update = AsyncStatusType(C.GARIO_UPDATE) AR_Error = AsyncStatusType(C.GARIO_ERROR) AR_Complete = AsyncStatusType(C.GARIO_COMPLETE) )
const ( // Read only (no update) access ReadOnly = Access(C.GA_ReadOnly) // Read/write access. Update = Access(C.GA_Update) )
const ( // Read data Read = RWFlag(C.GF_Read) // Write data Write = RWFlag(C.GF_Write) )
const ( CI_Undefined = ColorInterp(C.GCI_Undefined) CI_GrayIndex = ColorInterp(C.GCI_GrayIndex) CI_PaletteIndex = ColorInterp(C.GCI_PaletteIndex) CI_RedBand = ColorInterp(C.GCI_RedBand) CI_GreenBand = ColorInterp(C.GCI_GreenBand) CI_BlueBand = ColorInterp(C.GCI_BlueBand) CI_AlphaBand = ColorInterp(C.GCI_AlphaBand) CI_HueBand = ColorInterp(C.GCI_HueBand) CI_SaturationBand = ColorInterp(C.GCI_SaturationBand) CI_LightnessBand = ColorInterp(C.GCI_LightnessBand) CI_CyanBand = ColorInterp(C.GCI_CyanBand) CI_MagentaBand = ColorInterp(C.GCI_MagentaBand) CI_YellowBand = ColorInterp(C.GCI_YellowBand) CI_BlackBand = ColorInterp(C.GCI_BlackBand) CI_YCbCr_YBand = ColorInterp(C.GCI_YCbCr_YBand) CI_YCbCr_CbBand = ColorInterp(C.GCI_YCbCr_CbBand) CI_YCbCr_CrBand = ColorInterp(C.GCI_YCbCr_CrBand) CI_Max = ColorInterp(C.GCI_Max) )
const ( // Grayscale (in GDALColorEntry.c1) PI_Gray = PaletteInterp(C.GPI_Gray) // Red, Green, Blue and Alpha in (in c1, c2, c3 and c4) PI_RGB = PaletteInterp(C.GPI_RGB) // Cyan, Magenta, Yellow and Black (in c1, c2, c3 and c4) PI_CMYK = PaletteInterp(C.GPI_CMYK) // Hue, Lightness and Saturation (in c1, c2, and c3) PI_HLS = PaletteInterp(C.GPI_HLS) )
const ( MD_AREA_OR_POINT = string(C.GDALMD_AREA_OR_POINT) MD_AOP_AREA = string(C.GDALMD_AOP_AREA) MD_AOP_POINT = string(C.GDALMD_AOP_POINT) )
"well known" metadata items.
const ( DMD_LONGNAME = string(C.GDAL_DMD_LONGNAME) DMD_HELPTOPIC = string(C.GDAL_DMD_HELPTOPIC) DMD_MIMETYPE = string(C.GDAL_DMD_MIMETYPE) DMD_EXTENSION = string(C.GDAL_DMD_EXTENSION) DMD_CREATIONOPTIONLIST = string(C.GDAL_DMD_CREATIONOPTIONLIST) DMD_CREATIONDATATYPES = string(C.GDAL_DMD_CREATIONDATATYPES) DCAP_CREATE = string(C.GDAL_DCAP_CREATE) DCAP_CREATECOPY = string(C.GDAL_DCAP_CREATECOPY) DCAP_VIRTUALIO = string(C.GDAL_DCAP_VIRTUALIO) )
const ( GRA_NearestNeighbour = ResampleAlg(0) GRA_Bilinear = ResampleAlg(1) GRA_Cubic = ResampleAlg(2) GRA_CubicSpline = ResampleAlg(3) GRA_Lanczos = ResampleAlg(4) )
const ( GFT_Integer = RATFieldType(C.GFT_Integer) GFT_Real = RATFieldType(C.GFT_Real) GFT_String = RATFieldType(C.GFT_String) )
const ( GFU_Generic = RATFieldUsage(C.GFU_Generic) GFU_PixelCount = RATFieldUsage(C.GFU_PixelCount) GFU_Name = RATFieldUsage(C.GFU_Name) GFU_Min = RATFieldUsage(C.GFU_Min) GFU_Max = RATFieldUsage(C.GFU_Max) GFU_MinMax = RATFieldUsage(C.GFU_MinMax) GFU_Red = RATFieldUsage(C.GFU_Red) GFU_Green = RATFieldUsage(C.GFU_Green) GFU_Blue = RATFieldUsage(C.GFU_Blue) GFU_Alpha = RATFieldUsage(C.GFU_Alpha) GFU_RedMin = RATFieldUsage(C.GFU_RedMin) GFU_GreenMin = RATFieldUsage(C.GFU_GreenMin) GFU_BlueMin = RATFieldUsage(C.GFU_BlueMin) GFU_AlphaMin = RATFieldUsage(C.GFU_AlphaMin) GFU_RedMax = RATFieldUsage(C.GFU_RedMax) GFU_GreenMax = RATFieldUsage(C.GFU_GreenMax) GFU_BlueMax = RATFieldUsage(C.GFU_BlueMax) GFU_AlphaMax = RATFieldUsage(C.GFU_AlphaMax) GFU_MaxCount = RATFieldUsage(C.GFU_MaxCount) )
const ( GT_Unknown = GeometryType(C.wkbUnknown) GT_Point = GeometryType(C.wkbPoint) GT_LineString = GeometryType(C.wkbLineString) GT_Polygon = GeometryType(C.wkbPolygon) GT_MultiPoint = GeometryType(C.wkbMultiPoint) GT_MultiLineString = GeometryType(C.wkbMultiLineString) GT_MultiPolygon = GeometryType(C.wkbMultiPolygon) GT_GeometryCollection = GeometryType(C.wkbGeometryCollection) GT_None = GeometryType(C.wkbNone) GT_LinearRing = GeometryType(C.wkbLinearRing) GT_Point25D = GeometryType(C.wkbPoint25D) GT_LineString25D = GeometryType(C.wkbLineString25D) GT_Polygon25D = GeometryType(C.wkbPolygon25D) GT_MultiPoint25D = GeometryType(C.wkbMultiPoint25D) GT_MultiLineString25D = GeometryType(C.wkbMultiLineString25D) GT_MultiPolygon25D = GeometryType(C.wkbMultiPolygon25D) GT_GeometryCollection25D = GeometryType(C.wkbGeometryCollection25D) )
const ( FT_Integer = FieldType(C.OFTInteger) FT_IntegerList = FieldType(C.OFTIntegerList) FT_Real = FieldType(C.OFTReal) FT_RealList = FieldType(C.OFTRealList) FT_String = FieldType(C.OFTString) FT_StringList = FieldType(C.OFTStringList) FT_Binary = FieldType(C.OFTBinary) FT_Date = FieldType(C.OFTDate) FT_Time = FieldType(C.OFTTime) FT_DateTime = FieldType(C.OFTDateTime) )
const ( J_Undefined = Justification(C.OJUndefined) J_Left = Justification(C.OJLeft) J_Right = Justification(C.OJRight) )
Variables ¶
This section is empty.
Functions ¶
func ComputeMedianCutPCT ¶
func ComputeMedianCutPCT( red, green, blue RasterBand, colors int, ct ColorTable, progress ProgressFunc, data interface{}, ) int
Compute optimal PCT for RGB image
func CreateScaledProgress ¶
func DestroyScaledProgress ¶
func DitherRGB2PCT ¶
func DitherRGB2PCT( red, green, blue, target RasterBand, ct ColorTable, progress ProgressFunc, data interface{}, ) int
24bit to 8bit conversion with dithering
func DummyProgress ¶
func ParameterInfo ¶
func ParameterInfo( projectionMethod, parameterName string, ) ( username, paramType string, defaultValue float64, ok bool, )
Fetch information about a single parameter of a projection method
func ParameterList ¶
Fetch the parameters for a given projection method
func ProjectionMethods ¶
func ProjectionMethods() []string
Fetch list of possible projection methods
func ScaledProgress ¶
func TermProgress ¶
Types ¶
type AsyncReader ¶
type AsyncReader struct {
// contains filtered or unexported fields
}
type AsyncStatusType ¶
type AsyncStatusType int
status of the asynchronous stream
func GetAsyncStatusTypeByName ¶
func GetAsyncStatusTypeByName(statusTypeName string) AsyncStatusType
func (AsyncStatusType) Name ¶
func (statusType AsyncStatusType) Name() string
type ColorEntry ¶
type ColorEntry struct {
// contains filtered or unexported fields
}
type ColorInterp ¶
type ColorInterp int
Types of color interpretation for raster bands.
func GetColorInterpretationByName ¶
func GetColorInterpretationByName(name string) ColorInterp
func (ColorInterp) Name ¶
func (colorInterp ColorInterp) Name() string
type ColorTable ¶
type ColorTable struct {
// contains filtered or unexported fields
}
func CreateColorTable ¶
func CreateColorTable(interp PaletteInterp) ColorTable
Construct a new color table
func (ColorTable) CreateColorRamp ¶
func (ct ColorTable) CreateColorRamp(start, end int, startColor, endColor ColorEntry)
Create color ramp
func (ColorTable) Entry ¶
func (ct ColorTable) Entry(index int) ColorEntry
Fetch a color entry from table
func (ColorTable) EntryCount ¶
func (ct ColorTable) EntryCount() int
Get number of color entries in table
func (ColorTable) PaletteInterpretation ¶
func (ct ColorTable) PaletteInterpretation() PaletteInterp
Fetch palette interpretation
func (ColorTable) SetEntry ¶
func (ct ColorTable) SetEntry(index int, entry ColorEntry)
Set entry in color table
type CoordinateTransform ¶
type CoordinateTransform struct {
// contains filtered or unexported fields
}
func CreateCoordinateTransform ¶
func CreateCoordinateTransform( source SpatialReference, dest SpatialReference, ) CoordinateTransform
Create a new CoordinateTransform
func (CoordinateTransform) Destroy ¶
func (ct CoordinateTransform) Destroy()
Destroy CoordinateTransform
type DataSource ¶
type DataSource struct {
// contains filtered or unexported fields
}
func OpenDataSource ¶
func OpenDataSource(name string, update int) DataSource
Open a file / data source with one of the registered drivers
func OpenDataSourceByIndex ¶
func OpenDataSourceByIndex(index int) DataSource
Return the i'th datasource opened
func OpenSharedDataSource ¶
func OpenSharedDataSource(name string, update int) DataSource
Open a shared file / data source with one of the registered drivers
func (DataSource) CopyLayer ¶
func (ds DataSource) CopyLayer( source Layer, name string, options []string, ) Layer
Duplicate an existing layer
func (DataSource) CreateLayer ¶
func (ds DataSource) CreateLayer( name string, sr SpatialReference, geomType GeometryType, options []string, ) Layer
Create a new layer on the data source
func (DataSource) Delete ¶
func (ds DataSource) Delete(index int) error
Delete the layer from the data source
func (DataSource) Driver ¶
func (ds DataSource) Driver() OGRDriver
Fetch the driver that the data source was opened with
func (DataSource) ExecuteSQL ¶
func (ds DataSource) ExecuteSQL(sql string, filter Geometry, dialect string) Layer
Execute an SQL statement against the data source
func (DataSource) LayerByIndex ¶
func (ds DataSource) LayerByIndex(index int) Layer
Fetch a layer of this data source by index
func (DataSource) LayerByName ¶
func (ds DataSource) LayerByName(name string) Layer
Fetch a layer of this data source by name
func (DataSource) LayerCount ¶
func (ds DataSource) LayerCount() int
Fetch the number of layers in this data source
func (DataSource) Release ¶
func (ds DataSource) Release() error
Drop a reference to this datasource and destroy if reference is zero
func (DataSource) ReleaseResultSet ¶
func (ds DataSource) ReleaseResultSet(layer Layer)
Release the results of ExecuteSQL
func (DataSource) TestCapability ¶
func (ds DataSource) TestCapability(capability string) bool
Test if the data source has the indicated capability
type Dataset ¶
type Dataset struct {
// contains filtered or unexported fields
}
func OpenShared ¶
Open a shared existing dataset
func (Dataset) AdviseRead ¶
func (dataset Dataset) AdviseRead( rwFlag RWFlag, xOff, yOff, xSize, ySize, bufXSize, bufYSize int, dataType DataType, bandCount int, bandMap []int, options []string, ) error
Advise driver of upcoming read requests
func (Dataset) AutoCreateWarpedVRT ¶
func (dataset Dataset) AutoCreateWarpedVRT(srcWKT, dstWKT string, resampleAlg ResampleAlg) (Dataset, error)
func (Dataset) BuildOverviews ¶
func (dataset Dataset) BuildOverviews( resampling string, nOverviews int, overviewList []int, nBands int, bandList []int, progress ProgressFunc, data interface{}, ) error
Build raster overview(s)
func (Dataset) CopyWholeRaster ¶
func (sourceDataset Dataset) CopyWholeRaster( destDataset Dataset, options []string, progress ProgressFunc, data interface{}, ) error
Copy all dataset raster data
func (Dataset) CreateMaskBand ¶
Adds a mask band to the dataset
func (Dataset) GDALDereferenceDataset ¶
Subtract one from dataset reference count
func (Dataset) GDALGetInternalHandle ¶
Fetch a format specific internally meaningful handle
func (Dataset) GDALReferenceDataset ¶
Add one to dataset reference count
func (Dataset) GeoTransform ¶
Get the affine transformation coefficients
func (Dataset) IO ¶
func (dataset Dataset) IO( rwFlag RWFlag, xOff, yOff, xSize, ySize int, buffer interface{}, bufXSize, bufYSize int, bandCount int, bandMap []int, pixelSpace, lineSpace, bandSpace int, ) error
Read / write a region of image data from multiple bands
func (Dataset) Projection ¶
Fetch the projection definition string for this dataset
func (Dataset) RasterBand ¶
func (dataset Dataset) RasterBand(band int) RasterBand
Fetch a raster band object from a dataset
func (Dataset) RasterCount ¶
Fetch the number of raster bands in the dataset
func (Dataset) SetGeoTransform ¶
Set the affine transformation coefficients
func (*Dataset) SetMetadataItem ¶
func (Dataset) SetProjection ¶
Set the projection reference string
type Driver ¶
type Driver struct {
// contains filtered or unexported fields
}
func GetDriverByName ¶
Return the driver by short name
func IdentifyDriver ¶
Return the driver needed to access the provided dataset name.
func (Driver) CopyDatasetFiles ¶
Copy all files associated with the named dataset
func (Driver) Create ¶
func (driver Driver) Create( filename string, xSize, ySize, bands int, dataType DataType, options []string, ) Dataset
Create a new dataset with this driver.
func (Driver) CreateCopy ¶
func (driver Driver) CreateCopy( filename string, sourceDataset Dataset, strict int, options []string, progress ProgressFunc, data interface{}, ) Dataset
Create a copy of a dataset
func (Driver) DeleteDataset ¶
Delete named dataset
func (Driver) RenameDataset ¶
Rename named dataset
type Envelope ¶
type Envelope struct {
// contains filtered or unexported fields
}
func (Envelope) Intersects ¶
Test if one envelope intersects another
type Feature ¶
type Feature struct {
// contains filtered or unexported fields
}
func (Feature) Definition ¶
func (feature Feature) Definition() FeatureDefinition
Fetch feature definition
func (Feature) FieldAsBinary ¶
Fetch field as binary data
func (Feature) FieldAsDateTime ¶
Fetch field as date and time
func (Feature) FieldAsFloat64 ¶
Fetch field value as float64
func (Feature) FieldAsFloat64List ¶
Fetch field as list of float64
func (Feature) FieldAsInteger ¶
Fetch field value as integer
func (Feature) FieldAsIntegerList ¶
Fetch field as list of integers
func (Feature) FieldAsString ¶
Fetch field value as string
func (Feature) FieldAsStringList ¶
Fetch field as list of strings
func (Feature) FieldCount ¶
Fetch number of fields on this feature
func (Feature) FieldDefinition ¶
func (feature Feature) FieldDefinition(index int) FieldDefinition
Fetch definition for the indicated field
func (Feature) FieldIndex ¶
Fetch the field index for the given field name
func (Feature) IsFieldSet ¶
Return if a field has ever been assigned a value
func (Feature) SetFieldBinary ¶
Set field as binary data
func (Feature) SetFieldDateTime ¶
Set field as date / time
func (Feature) SetFieldFloat64 ¶
Set field to float64 value
func (Feature) SetFieldFloat64List ¶
Set field to list of float64
func (Feature) SetFieldInteger ¶
Set field to integer value
func (Feature) SetFieldIntegerList ¶
Set field to list of integers
func (Feature) SetFieldRaw ¶
Set field from the raw field pointer
func (Feature) SetFieldString ¶
Set field to string value
func (Feature) SetFieldStringList ¶
Set field to list of strings
func (Feature) SetFromWithMap ¶
Set one feature from another, using field map
func (Feature) SetGeometry ¶
Set feature geometry
func (Feature) SetGeometryDirectly ¶
Set feature geometry, passing ownership to the feature
func (Feature) SetStyleString ¶
Set style string for this feature
func (Feature) StealGeometry ¶
Fetch geometry of this feature and assume ownership
func (Feature) StlyeString ¶
Fetch style string for this feature
func (Feature) UnnsetField ¶
Clear a field and mark it as unset
type FeatureDefinition ¶
type FeatureDefinition struct {
// contains filtered or unexported fields
}
func CreateFeatureDefinition ¶
func CreateFeatureDefinition(name string) FeatureDefinition
Create a new feature definition object
func (FeatureDefinition) AddFieldDefinition ¶
func (fd FeatureDefinition) AddFieldDefinition(fieldDefn FieldDefinition)
Add a new field definition to this feature definition
func (FeatureDefinition) Create ¶
func (fd FeatureDefinition) Create() Feature
Create a feature from this feature definition
func (FeatureDefinition) DeleteFieldDefinition ¶
func (fd FeatureDefinition) DeleteFieldDefinition(index int) error
Delete a field definition from this feature definition
func (FeatureDefinition) Dereference ¶
func (fd FeatureDefinition) Dereference() int
Decrement the reference count by one
func (FeatureDefinition) Destroy ¶
func (fd FeatureDefinition) Destroy()
Destroy a feature definition object
func (FeatureDefinition) FieldCount ¶
func (fd FeatureDefinition) FieldCount() int
Fetch the number of fields in the feature definition
func (FeatureDefinition) FieldDefinition ¶
func (fd FeatureDefinition) FieldDefinition(index int) FieldDefinition
Fetch the definition of the indicated field
func (FeatureDefinition) FieldIndex ¶
func (fd FeatureDefinition) FieldIndex(name string) int
Fetch the index of the named field
func (FeatureDefinition) GeometryType ¶
func (fd FeatureDefinition) GeometryType() GeometryType
Fetch the geometry base type of this feature definition
func (FeatureDefinition) IsGeometryIgnored ¶
func (fd FeatureDefinition) IsGeometryIgnored() bool
Fetch if the geometry can be ignored when fetching features
func (FeatureDefinition) IsStyleIgnored ¶
func (fd FeatureDefinition) IsStyleIgnored() bool
Fetch if the style can be ignored when fetching features
func (FeatureDefinition) Name ¶
func (fd FeatureDefinition) Name() string
Fetch the name of this feature definition
func (FeatureDefinition) Reference ¶
func (fd FeatureDefinition) Reference() int
Increment the reference count by one
func (FeatureDefinition) ReferenceCount ¶
func (fd FeatureDefinition) ReferenceCount() int
Fetch the current reference count
func (FeatureDefinition) Release ¶
func (fd FeatureDefinition) Release()
Drop a reference, and delete object if no references remain
func (FeatureDefinition) SetGeometryIgnored ¶
func (fd FeatureDefinition) SetGeometryIgnored(val bool)
Set whether the geometry can be ignored when fetching features
func (FeatureDefinition) SetGeometryType ¶
func (fd FeatureDefinition) SetGeometryType(geomType GeometryType)
Set the geometry base type for this feature definition
func (FeatureDefinition) SetStyleIgnored ¶
func (fd FeatureDefinition) SetStyleIgnored(val bool)
Set whether the style can be ignored when fetching features
type FieldDefinition ¶
type FieldDefinition struct {
// contains filtered or unexported fields
}
func CreateFieldDefinition ¶
func CreateFieldDefinition(name string, fieldType FieldType) FieldDefinition
Create a new field definition
func (FieldDefinition) IsIgnored ¶
func (fd FieldDefinition) IsIgnored() bool
Fetch whether this field should be ignored when fetching features
func (FieldDefinition) Justification ¶
func (fd FieldDefinition) Justification() Justification
Fetch the justification for this field
func (FieldDefinition) Precision ¶
func (fd FieldDefinition) Precision() int
Fetch the precision for this field
func (FieldDefinition) Set ¶
func (fd FieldDefinition) Set( name string, fType FieldType, width, precision int, justify Justification, )
Set defining parameters of field in a single call
func (FieldDefinition) SetIgnored ¶
func (fd FieldDefinition) SetIgnored(ignore bool)
Set whether this field should be ignored when fetching features
func (FieldDefinition) SetJustification ¶
func (fd FieldDefinition) SetJustification(justify Justification)
Set the justification for this field
func (FieldDefinition) SetName ¶
func (fd FieldDefinition) SetName(name string)
Set the name of the field
func (FieldDefinition) SetPrecision ¶
func (fd FieldDefinition) SetPrecision(precision int)
Set the precision for this field
func (FieldDefinition) SetType ¶
func (fd FieldDefinition) SetType(fType FieldType)
Set the type of this field
func (FieldDefinition) SetWidth ¶
func (fd FieldDefinition) SetWidth(width int)
Set the formatting width for this field
func (FieldDefinition) Type ¶
func (fd FieldDefinition) Type() FieldType
Fetch the type of this field
func (FieldDefinition) Width ¶
func (fd FieldDefinition) Width() int
Fetch the formatting width for this field
type Geometry ¶
type Geometry struct {
// contains filtered or unexported fields
}
func ApproximateArcAngles ¶
func ApproximateArcAngles( x, y, z, primaryRadius, secondaryRadius, rotation, startAngle, endAngle, stepSizeDegrees float64, ) Geometry
Stroke arc to linestring
func Create ¶
func Create(geomType GeometryType) Geometry
Create an empty geometry of the desired type
func CreateFromGML ¶
Create a geometry from its GML representation
func CreateFromWKB ¶
func CreateFromWKB(wkb []uint8, srs SpatialReference, bytes int) (Geometry, error)
Create a geometry object from its well known binary representation
func CreateFromWKT ¶
func CreateFromWKT(wkt string, srs SpatialReference) (Geometry, error)
Create a geometry object from its well known text representation
func (Geometry) AddGeometry ¶
Add a geometry to a geometry container
func (Geometry) AddGeometryDirectly ¶
Add a geometry to a geometry container and assign ownership to that container
func (Geometry) AddPoint2D ¶
Add a new point to the geometry (line string or polygon only), ignoring the 3rd dimension
func (Geometry) BuildPolygonFromEdges ¶
Build a polygon / ring from a set of lines
func (Geometry) ConvexHull ¶
Compute convex hull for the geometry
func (Geometry) CoordinateDimension ¶
Get the dimension of the coordinates in this geometry
func (Geometry) Difference ¶
Compute difference between this geometry and the other
func (Geometry) ForceToMultiLineString ¶
Convert to multilinestring
func (Geometry) ForceToMultiPoint ¶
Convert to multipoint
func (Geometry) ForceToMultiPolygon ¶
Convert to multipolygon
func (Geometry) GeometryCount ¶
Fetch the number of elements in the geometry, or number of geometries in the container
func (Geometry) Intersection ¶
Compute intersection of this geometry with the other
func (Geometry) Intersects ¶
Return true if these features intersect
func (Geometry) PointCount ¶
Fetch number of points in the geometry
func (Geometry) Polygonize ¶
Polygonize a set of sparse edges
func (Geometry) RemoveGeometry ¶
Remove a geometry from the geometry container
func (Geometry) Segmentize ¶
Modify the geometry such that it has no line segment longer than the given distance
func (Geometry) SetCoordinateDimension ¶
Set the dimension of the coordinates in this geometry
func (Geometry) SetPoint2D ¶
Set the coordinates of a point in the geometry, ignoring the 3rd dimension
func (Geometry) SetSpatialReference ¶
func (geom Geometry) SetSpatialReference(spatialRef SpatialReference)
Assign a spatial reference to this geometry
func (Geometry) SimplifyPreservingTopology ¶
Simplify the geometry while preserving topology
func (Geometry) SpatialReference ¶
func (geom Geometry) SpatialReference() SpatialReference
Fetch the spatial reference associated with this geometry
func (Geometry) SymmetricDifference ¶
Compute symmetric difference between this geometry and the other
func (Geometry) Transform ¶
func (geom Geometry) Transform(ct CoordinateTransform) error
Apply coordinate transformation to geometry
func (Geometry) TransformTo ¶
func (geom Geometry) TransformTo(sr SpatialReference) error
Transform geometry to new spatial reference system
type Justification ¶
type Justification int
type Layer ¶
type Layer struct {
// contains filtered or unexported fields
}
func (Layer) AlterFieldDefn ¶
func (layer Layer) AlterFieldDefn(index int, newDefn FieldDefinition, flags int) error
Alter the definition of an existing field of a layer
func (Layer) CommitTransaction ¶
Commit a transaction on data sources which support it
func (Layer) CreateField ¶
func (layer Layer) CreateField(fd FieldDefinition, approxOK bool) error
Create a new field on a layer
func (Layer) Definition ¶
func (layer Layer) Definition() FeatureDefinition
Fetch the schema information for this layer
func (Layer) DeleteField ¶
Delete a field from the layer
func (Layer) FeatureCount ¶
Fetch the feature count for this layer
func (Layer) GeometryColumn ¶
Fetch the name of the geometry column
func (Layer) NextFeature ¶
Fetch the next available feature from this layer
func (Layer) ReorderField ¶
Reorder an existing field of a layer
func (Layer) ReorderFields ¶
Reorder all the fields of a layer
func (Layer) ResetReading ¶
func (layer Layer) ResetReading()
Reset reading to start on the first featre
func (Layer) RollbackTransaction ¶
Roll back the current transaction on data sources which support it
func (Layer) SetAttributeFilter ¶
Set a new attribute query filter
func (Layer) SetFeature ¶
Rewrite the provided feature
func (Layer) SetIgnoredFields ¶
Set which fields can be ignored when retrieving features from the layer
func (Layer) SetNextByIndex ¶
Move read cursor to the provided index
func (Layer) SetSpatialFilter ¶
Set a new spatial filter for this layer
func (Layer) SetSpatialFilterRect ¶
Set a new rectangular spatial filter for this layer
func (Layer) SpatialFilter ¶
Return the current spatial filter for this layer
func (Layer) SpatialReference ¶
func (layer Layer) SpatialReference() SpatialReference
Fetch the spatial reference system for this layer
func (Layer) StartTransaction ¶
Begin a transation on data sources which support it
func (Layer) TestCapability ¶
Test if this layer supports the named capability
type MajorObject ¶
type MajorObject struct {
// contains filtered or unexported fields
}
func (MajorObject) Description ¶
func (object MajorObject) Description() string
Fetch object description
func (MajorObject) Metadata ¶
func (object MajorObject) Metadata(domain string) []string
Fetch metadata
func (MajorObject) MetadataItem ¶
func (object MajorObject) MetadataItem(name, domain string) string
Fetch a single metadata item
func (MajorObject) SetDescription ¶
func (object MajorObject) SetDescription(desc string)
Set object description
func (MajorObject) SetMetadata ¶
func (object MajorObject) SetMetadata(metadata []string, domain string)
Set metadata
func (MajorObject) SetMetadataItem ¶
func (object MajorObject) SetMetadataItem(name, value, domain string)
Set a single metadata item
type OGRDriver ¶
type OGRDriver struct {
// contains filtered or unexported fields
}
func OGRDriverByIndex ¶
Fetch the indicated driver by index
func OGRDriverByName ¶
Fetch the indicated driver by name
func (OGRDriver) Copy ¶
func (driver OGRDriver) Copy(source DataSource, name string, options []string) (newDS DataSource, ok bool)
Create a new datasource with this driver by copying all layers of the existing datasource
func (OGRDriver) Create ¶
func (driver OGRDriver) Create(name string, options []string) (newDS DataSource, ok bool)
Create a new data source based on this driver
func (OGRDriver) Deregister ¶
func (driver OGRDriver) Deregister()
Remove a driver from the list of registered drivers
func (OGRDriver) Open ¶
func (driver OGRDriver) Open(filename string, update int) (newDS DataSource, ok bool)
Attempt to open file with this driver
func (OGRDriver) Register ¶
func (driver OGRDriver) Register()
Add a driver to the list of registered drivers
func (OGRDriver) TestCapability ¶
Test if this driver supports the named capability
type PaletteInterp ¶
type PaletteInterp int
Types of color interpretations for a GDALColorTable.
func (PaletteInterp) Name ¶
func (paletteInterp PaletteInterp) Name() string
type ProgressFunc ¶
type RATFieldType ¶
type RATFieldType int
type RATFieldUsage ¶
type RATFieldUsage int
type RasterAttributeTable ¶
type RasterAttributeTable struct {
// contains filtered or unexported fields
}
func CreateRasterAttributeTable ¶
func CreateRasterAttributeTable() RasterAttributeTable
Construct empty raster attribute table
func (RasterAttributeTable) ColOfUsage ¶
func (rat RasterAttributeTable) ColOfUsage(rfu RATFieldUsage) int
Fetch column index for indicated usage
func (RasterAttributeTable) ColumnCount ¶
func (rat RasterAttributeTable) ColumnCount() int
Fetch table column count
func (RasterAttributeTable) CreateColumn ¶
func (rat RasterAttributeTable) CreateColumn(name string, rft RATFieldType, rfu RATFieldUsage) error
Create new column
func (RasterAttributeTable) FromColorTable ¶
func (rat RasterAttributeTable) FromColorTable(ct ColorTable) error
Initialize RAT from color table
func (RasterAttributeTable) LinearBinning ¶
func (rat RasterAttributeTable) LinearBinning() (row0min, binsize float64, exists bool)
Fetch linear binning information
func (RasterAttributeTable) NameOfCol ¶
func (rat RasterAttributeTable) NameOfCol(index int) string
Fetch the name of indicated column
func (RasterAttributeTable) RowCount ¶
func (rat RasterAttributeTable) RowCount() int
Fetch row count
func (RasterAttributeTable) RowOfValue ¶
func (rat RasterAttributeTable) RowOfValue(val float64) (int, bool)
Get row for pixel value
func (RasterAttributeTable) SetLinearBinning ¶
func (rat RasterAttributeTable) SetLinearBinning(row0min, binsize float64) error
Set linear binning information
func (RasterAttributeTable) SetRowCount ¶
func (rat RasterAttributeTable) SetRowCount(count int)
Set row count
func (RasterAttributeTable) SetValueAsFloat64 ¶
func (rat RasterAttributeTable) SetValueAsFloat64(row, field int, val float64)
Set field value from float64
func (RasterAttributeTable) SetValueAsInt ¶
func (rat RasterAttributeTable) SetValueAsInt(row, field, val int)
Set field value from integer
func (RasterAttributeTable) SetValueAsString ¶
func (rat RasterAttributeTable) SetValueAsString(row, field int, val string)
Set field value from string
func (RasterAttributeTable) ToColorTable ¶
func (rat RasterAttributeTable) ToColorTable(count int) ColorTable
Translate RAT to a color table
func (RasterAttributeTable) TypeOfCol ¶
func (rat RasterAttributeTable) TypeOfCol(index int) RATFieldType
Fetch the type of indicated column
func (RasterAttributeTable) UsageOfCol ¶
func (rat RasterAttributeTable) UsageOfCol(index int) RATFieldUsage
Fetch the usage of indicated column
func (RasterAttributeTable) ValueAsFloat64 ¶
func (rat RasterAttributeTable) ValueAsFloat64(row, field int) float64
Fetch field value as float64
func (RasterAttributeTable) ValueAsInt ¶
func (rat RasterAttributeTable) ValueAsInt(row, field int) int
Fetch field value as integer
func (RasterAttributeTable) ValueAsString ¶
func (rat RasterAttributeTable) ValueAsString(row, field int) string
Fetch field value as string
type RasterBand ¶
type RasterBand struct {
// contains filtered or unexported fields
}
func (RasterBand) AdviseRead ¶
func (rasterBand RasterBand) AdviseRead( xOff, yOff, xSize, ySize, bufXSize, bufYSize int, dataType DataType, options []string, ) error
Advise driver of upcoming read requests
func (RasterBand) BandNumber ¶
func (rasterBand RasterBand) BandNumber() int
Fetch the band number of this raster band
func (RasterBand) BlockSize ¶
func (rasterBand RasterBand) BlockSize() (int, int)
Fetch the "natural" block size of this band
func (RasterBand) CategoryNames ¶
func (rasterBand RasterBand) CategoryNames() []string
Fetch the list of category names for this raster
func (RasterBand) Checksum ¶
func (rb RasterBand) Checksum(xOff, yOff, xSize, ySize int) int
Compute checksum for image region
func (RasterBand) ColorInterp ¶
func (rasterBand RasterBand) ColorInterp() ColorInterp
How should this band be interpreted as color?
func (RasterBand) ColorTable ¶
func (rasterBand RasterBand) ColorTable() ColorTable
Fetch the color table associated with this raster band
func (RasterBand) ComputeMinMax ¶
func (rasterBand RasterBand) ComputeMinMax(approxOK int) (min, max float64)
Compute the min / max values for a band
func (RasterBand) ComputeProximity ¶
func (src RasterBand) ComputeProximity( dest RasterBand, options []string, progress ProgressFunc, data interface{}, ) error
Compute the proximity of all pixels in the image to a set of pixels in the source image
func (RasterBand) ComputeStatistics ¶
func (rasterBand RasterBand) ComputeStatistics( approxOK int, progress ProgressFunc, data interface{}, ) (min, max, mean, stdDev float64)
Compute image statistics
func (RasterBand) CreateMaskBand ¶
func (rasterBand RasterBand) CreateMaskBand(flags int) error
Adds a mask band to the current band
func (RasterBand) DefaultHistogram ¶
func (rb RasterBand) DefaultHistogram( force int, progress ProgressFunc, data interface{}, ) (min, max float64, buckets int, histogram []int, err error)
Fetch default raster histogram
func (RasterBand) FPolygonize ¶
func (src RasterBand) FPolygonize( mask RasterBand, layer Layer, fieldIndex int, options []string, progress ProgressFunc, data interface{}, ) error
Create polygon coverage from raster data using a floating point buffer
func (RasterBand) Fill ¶
func (rasterBand RasterBand) Fill(real, imaginary float64) error
Fill this band with a constant value
func (RasterBand) FillNoData ¶
func (src RasterBand) FillNoData( mask RasterBand, distance float64, iterations int, options []string, progress ProgressFunc, data interface{}, ) error
Fill selected raster regions by interpolation from the edges
func (RasterBand) GetAccess ¶
func (rasterBand RasterBand) GetAccess() Access
Find out if we have update permission for this band
func (RasterBand) GetDataset ¶
func (rasterBand RasterBand) GetDataset() Dataset
Fetch the owning dataset handle
func (RasterBand) GetDefaultRAT ¶
func (rasterBand RasterBand) GetDefaultRAT() RasterAttributeTable
Fetch default Raster Attribute Table
func (RasterBand) GetMaskBand ¶
func (rasterBand RasterBand) GetMaskBand() RasterBand
Return the mask band associated with the band
func (RasterBand) GetMaskFlags ¶
func (rasterBand RasterBand) GetMaskFlags() int
Return the status flags of the mask band associated with the band
func (RasterBand) GetMaximum ¶
func (rasterBand RasterBand) GetMaximum() (val float64, valid bool)
Fetch the maximum value for this band
func (RasterBand) GetMinimum ¶
func (rasterBand RasterBand) GetMinimum() (val float64, valid bool)
Fetch the minimum value for this band
func (RasterBand) GetOffset ¶
func (rasterBand RasterBand) GetOffset() (float64, bool)
Fetch the raster value offset
func (RasterBand) GetScale ¶
func (rasterBand RasterBand) GetScale() (float64, bool)
Fetch the raster value scale
func (RasterBand) GetStatistics ¶
func (rasterBand RasterBand) GetStatistics(approxOK, force int) (min, max, mean, stdDev float64)
Fetch image statistics
func (RasterBand) GetUnitType ¶
func (rasterBand RasterBand) GetUnitType() string
Return raster unit type
func (RasterBand) HasArbitraryOverviews ¶
func (rasterBand RasterBand) HasArbitraryOverviews() int
Check for arbitrary overviews
func (RasterBand) Histogram ¶
func (rb RasterBand) Histogram( min, max float64, buckets int, includeOutOfRange, approxOK int, progress ProgressFunc, data interface{}, ) ([]int, error)
Compute raster histogram
func (RasterBand) IO ¶
func (rasterBand RasterBand) IO( rwFlag RWFlag, xOff, yOff, xSize, ySize int, buffer interface{}, bufXSize, bufYSize int, pixelSpace, lineSpace int, ) error
Read / Write a region of image data for this band
func (RasterBand) NoDataValue ¶
func (rasterBand RasterBand) NoDataValue() (val float64, valid bool)
Fetch the no data value for this band
func (RasterBand) Overview ¶
func (rasterBand RasterBand) Overview(level int) RasterBand
Fetch overview raster band object
func (RasterBand) OverviewCount ¶
func (rasterBand RasterBand) OverviewCount() int
Return the number of overview layers available
func (RasterBand) Polygonize ¶
func (src RasterBand) Polygonize( mask RasterBand, layer Layer, fieldIndex int, options []string, progress ProgressFunc, data interface{}, ) error
Create polygon coverage from raster data using an integer buffer
func (RasterBand) RasterBandCopyWholeRaster ¶
func (sourceRaster RasterBand) RasterBandCopyWholeRaster( destRaster RasterBand, options []string, progress ProgressFunc, data interface{}, ) error
Copy all raster band raster data
func (RasterBand) RasterDataType ¶
func (rasterBand RasterBand) RasterDataType() DataType
Fetch the pixel data type for this band
func (RasterBand) ReadBlock ¶
func (rasterBand RasterBand) ReadBlock(xOff, yOff int, dataPtr unsafe.Pointer) error
Read a block of image data efficiently
func (RasterBand) SetColorInterp ¶
func (rasterBand RasterBand) SetColorInterp(colorInterp ColorInterp) error
Set color interpretation of the raster band
func (RasterBand) SetColorTable ¶
func (rasterBand RasterBand) SetColorTable(colorTable ColorTable) error
Set the raster color table for this raster band
func (RasterBand) SetDefaultRAT ¶
func (rasterBand RasterBand) SetDefaultRAT(rat RasterAttributeTable) error
Set default Raster Attribute Table
func (*RasterBand) SetMetadataItem ¶
func (object *RasterBand) SetMetadataItem(name, value, domain string) error
func (RasterBand) SetNoDataValue ¶
func (rasterBand RasterBand) SetNoDataValue(val float64) error
Set the no data value for this band
func (RasterBand) SetOffset ¶
func (rasterBand RasterBand) SetOffset(offset float64) error
Set scaling offset
func (RasterBand) SetRasterCategoryNames ¶
func (rasterBand RasterBand) SetRasterCategoryNames(names []string) error
Set the category names for this band
func (RasterBand) SetScale ¶
func (rasterBand RasterBand) SetScale(scale float64) error
Set scaling ratio
func (RasterBand) SetStatistics ¶
func (rasterBand RasterBand) SetStatistics(min, max, mean, stdDev float64) error
Set statistics on raster band
func (RasterBand) SetUnitType ¶
func (rasterBand RasterBand) SetUnitType(unit string) error
Set unit type
func (RasterBand) SieveFilter ¶
func (src RasterBand) SieveFilter( mask, dest RasterBand, threshold, connectedness int, options []string, progress ProgressFunc, data interface{}, ) error
Removes small raster polygons
func (RasterBand) WriteBlock ¶
func (rasterBand RasterBand) WriteBlock(xOff, yOff int, dataPtr unsafe.Pointer) error
Write a block of image data efficiently
type ResampleAlg ¶
type ResampleAlg int
type SpatialReference ¶
type SpatialReference struct {
// contains filtered or unexported fields
}
func CreateSpatialReference ¶
func CreateSpatialReference(wkt string) SpatialReference
Create a new SpatialReference
func (SpatialReference) AngularUnits ¶
func (sr SpatialReference) AngularUnits() (string, float64)
Fetch the angular units for the geographic coordinate system
func (SpatialReference) AttrValue ¶
func (sr SpatialReference) AttrValue(key string, child int) (value string, ok bool)
Fetch indicated attribute of named node
func (SpatialReference) AuthorityCode ¶
func (sr SpatialReference) AuthorityCode(target string) string
Get the authority code for a node
func (SpatialReference) AuthorityName ¶
func (sr SpatialReference) AuthorityName(target string) string
Get the authority name for a node
func (SpatialReference) AutoIdentifyEPSG ¶
func (sr SpatialReference) AutoIdentifyEPSG() error
Set EPSG authority info if possible
func (SpatialReference) Clone ¶
func (sr SpatialReference) Clone() SpatialReference
Make a duplicate of this spatial reference
func (SpatialReference) CloneGeogCS ¶
func (sr SpatialReference) CloneGeogCS() SpatialReference
Make a duplicate of the GEOGCS node of this spatial reference
func (SpatialReference) CopyGeographicCSFrom ¶
func (sr SpatialReference) CopyGeographicCSFrom(other SpatialReference) error
Copy geographic CS from another spatial reference
func (SpatialReference) Dereference ¶
func (sr SpatialReference) Dereference() int
Decrements the reference count by one, returning reference count
func (SpatialReference) Destroy ¶
func (sr SpatialReference) Destroy()
Destroy the spatial reference
func (SpatialReference) EPSGTreatsAsLatLong ¶
func (sr SpatialReference) EPSGTreatsAsLatLong() bool
Return true if EPSG feels this coordinate system should be treated as having lat/long coordinate ordering
func (SpatialReference) Fixup ¶
func (sr SpatialReference) Fixup() error
Fix up spatial reference as needed
func (SpatialReference) FixupOrdering ¶
func (sr SpatialReference) FixupOrdering() error
Correct parameter ordering to match CT specification
func (SpatialReference) FromEPSG ¶
func (sr SpatialReference) FromEPSG(code int) error
Initialize SRS based on EPSG code
func (SpatialReference) FromEPSGA ¶
func (sr SpatialReference) FromEPSGA(code int) error
Initialize SRS based on EPSG code, using EPSG lat/long ordering
func (SpatialReference) FromERM ¶
func (sr SpatialReference) FromERM(proj, datum, units string) error
Import coordinate system from ERMapper projection definitions
func (SpatialReference) FromESRI ¶
func (sr SpatialReference) FromESRI(input string) error
Import coordinate system from ESRI .prj formats
func (SpatialReference) FromPCI ¶
func (sr SpatialReference) FromPCI(proj, units string, params []float64) error
Import coordinate system from PCI projection definition
func (SpatialReference) FromProj4 ¶
func (sr SpatialReference) FromProj4(input string) error
Import PROJ.4 coordinate string
func (SpatialReference) FromURL ¶
func (sr SpatialReference) FromURL(url string) error
Import coordinate system from a URL
func (SpatialReference) FromUSGS ¶
func (sr SpatialReference) FromUSGS(projsys, zone int, params []float64, datum int) error
Import coordinate system from USGS projection definition
func (SpatialReference) FromWKT ¶
func (sr SpatialReference) FromWKT(wkt string) error
Initialize SRS based on WKT string
func (SpatialReference) FromXML ¶
func (sr SpatialReference) FromXML(xml string) error
Import coordinate system from XML format (GML only currently)
func (SpatialReference) InverseFlattening ¶
func (sr SpatialReference) InverseFlattening() (float64, error)
Get spheroid inverse flattening axis
func (SpatialReference) IsCompound ¶
func (sr SpatialReference) IsCompound() bool
Return true if compound coordinate system
func (SpatialReference) IsGeocentric ¶
func (sr SpatialReference) IsGeocentric() bool
Return true if geocentric coordinate system
func (SpatialReference) IsGeographic ¶
func (sr SpatialReference) IsGeographic() bool
Return true if geographic coordinate system
func (SpatialReference) IsLocal ¶
func (sr SpatialReference) IsLocal() bool
Return true if local coordinate system
func (SpatialReference) IsProjected ¶
func (sr SpatialReference) IsProjected() bool
Return true if projected coordinate system
func (SpatialReference) IsSame ¶
func (sr SpatialReference) IsSame(other SpatialReference) bool
Return true if the coordinate systems describe the same system
func (SpatialReference) IsSameGeographicCS ¶
func (sr SpatialReference) IsSameGeographicCS(other SpatialReference) bool
Return true if the geographic coordinate systems match
func (SpatialReference) IsSameVerticalCS ¶
func (sr SpatialReference) IsSameVerticalCS(other SpatialReference) bool
Return true if the vertical coordinate systems match
func (SpatialReference) IsVertical ¶
func (sr SpatialReference) IsVertical() bool
Return true if vertical coordinate system
func (SpatialReference) LinearUnits ¶
func (sr SpatialReference) LinearUnits() (string, float64)
Fetch linear projection units
func (SpatialReference) MorphFromESRI ¶
func (sr SpatialReference) MorphFromESRI() error
Convert in place from ESRI WKT format
func (SpatialReference) MorphToESRI ¶
func (sr SpatialReference) MorphToESRI() error
Convert in place to ESRI WKT format
func (SpatialReference) NormalizedProjectionParameter ¶
func (sr SpatialReference) NormalizedProjectionParameter( name string, defaultValue float64, ) (float64, error)
Fetch a normalized projection parameter value
func (SpatialReference) PrimeMeridian ¶
func (sr SpatialReference) PrimeMeridian() (string, float64)
Fetch prime meridian information
func (SpatialReference) ProjectionParameter ¶
func (sr SpatialReference) ProjectionParameter(name string, defaultValue float64) (float64, error)
Fetch a projection parameter value
func (SpatialReference) Reference ¶
func (sr SpatialReference) Reference() int
Increments the reference count by one, returning reference count
func (SpatialReference) Release ¶
func (sr SpatialReference) Release()
Decrements the reference count by one and destroy if zero
func (SpatialReference) SemiMajorAxis ¶
func (sr SpatialReference) SemiMajorAxis() (float64, error)
Get spheroid semi-major axis
func (SpatialReference) SemiMinorAxis ¶
func (sr SpatialReference) SemiMinorAxis() (float64, error)
Get spheroid semi-minor axis
func (SpatialReference) SetACEA ¶
func (sr SpatialReference) SetACEA( stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Albers Conic Equal Area
func (SpatialReference) SetAE ¶
func (sr SpatialReference) SetAE(centerLat, centerLong, falseEasting, falseNorthing float64) error
Set to Azimuthal Equidistant
func (SpatialReference) SetAngularUnits ¶
func (sr SpatialReference) SetAngularUnits(units string, radians float64) error
Set the angular units for the geographic coordinate system
func (SpatialReference) SetAttrValue ¶
func (sr SpatialReference) SetAttrValue(path, value string) error
Set attribute value in spatial reference
func (SpatialReference) SetAuthority ¶
func (sr SpatialReference) SetAuthority(target, authority string, code int) error
Sets the authority for a node
func (SpatialReference) SetBonne ¶
func (sr SpatialReference) SetBonne(standardParallel, centralMeridian, falseEasting, falseNorthing float64) error
Set to Bonne
func (SpatialReference) SetCEA ¶
func (sr SpatialReference) SetCEA(stdp1, centralMeridian, falseEasting, falseNorthing float64) error
Set to Cylindrical Equal Area
func (SpatialReference) SetCS ¶
func (sr SpatialReference) SetCS(centerLat, centerLong, falseEasting, falseNorthing float64) error
Set to Cassini-Soldner
func (SpatialReference) SetCompoundCS ¶
func (sr SpatialReference) SetCompoundCS( name string, horizontal, vertical SpatialReference, ) error
Setup a compound coordinate system
func (SpatialReference) SetEC ¶
func (sr SpatialReference) SetEC( stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Equidistant Conic
func (SpatialReference) SetEckert ¶
func (sr SpatialReference) SetEckert(variation int, centralMeridian, falseEasting, falseNorthing float64) error
Set to Eckert I-VI
func (SpatialReference) SetEquirectangular ¶
func (sr SpatialReference) SetEquirectangular( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Equirectangular
func (SpatialReference) SetEquirectangularGeneralized ¶
func (sr SpatialReference) SetEquirectangularGeneralized( centerLat, centerLong, psuedoStdParallel, falseEasting, falseNorthing float64, ) error
Set to Equirectangular (generalized form)
func (SpatialReference) SetFromUserInput ¶
func (sr SpatialReference) SetFromUserInput(name string) error
Set spatial reference from various text formats
func (SpatialReference) SetGEOS ¶
func (sr SpatialReference) SetGEOS( centralMeridian, satelliteHeight, falseEasting, falseNorthing float64, ) error
Set to GEOS - Geostationary Satellite View
func (SpatialReference) SetGH ¶
func (sr SpatialReference) SetGH(centralMeridian, falseEasting, falseNorthing float64) error
Set to Goode Homolosine
func (SpatialReference) SetGS ¶
func (sr SpatialReference) SetGS(centralMeridian, falseEasting, falseNorthing float64) error
Set to Gall Stereographic
func (SpatialReference) SetGSTM ¶
func (sr SpatialReference) SetGSTM( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Gauss Schreiber Transverse Mercator
func (SpatialReference) SetGeocentricCS ¶
func (sr SpatialReference) SetGeocentricCS(name string) error
Set the user visible geographic CS name
func (SpatialReference) SetGeographicCS ¶
func (sr SpatialReference) SetGeographicCS( geogName, datumName, spheroidName string, semiMajor, flattening float64, pmName string, offset float64, angularUnits string, toRadians float64, ) error
Set geographic coordinate system
func (SpatialReference) SetGnomonic ¶
func (sr SpatialReference) SetGnomonic( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to gnomonic
func (SpatialReference) SetHOM ¶
func (sr SpatialReference) SetHOM( centerLat, centerLong, azimuth, rectToSkew, scale, falseEasting, falseNorthing float64, ) error
Set to Hotine Oblique Mercator projection using azimuth angle
func (SpatialReference) SetHOM2PNO ¶
func (sr SpatialReference) SetHOM2PNO( centerLat, lat1, long1, lat2, long2, scale, falseEasting, falseNorthing float64, ) error
Set to Hotine Oblique Mercator projection using two points on projection centerline
func (SpatialReference) SetIGH ¶
func (sr SpatialReference) SetIGH() error
Set to Interrupted Goode Homolosine
func (SpatialReference) SetIWMPolyconic ¶
func (sr SpatialReference) SetIWMPolyconic( lat1, lat2, centerLong, falseEasting, falseNorthing float64, ) error
Set to International Map of the World Polyconic
func (SpatialReference) SetKrovak ¶
func (sr SpatialReference) SetKrovak( centerLat, centerLong, azimuth, psuedoStdParallel, scale, falseEasting, falseNorthing float64, ) error
Set to Krovak Oblique Conic Conformal
func (SpatialReference) SetLAEA ¶
func (sr SpatialReference) SetLAEA( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Lambert Azimuthal Equal Area
func (SpatialReference) SetLCC ¶
func (sr SpatialReference) SetLCC( stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Lambert Conformal Conic
func (SpatialReference) SetLCC1SP ¶
func (sr SpatialReference) SetLCC1SP( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Lambert Conformal Conic (1 standard parallel)
func (SpatialReference) SetLCCB ¶
func (sr SpatialReference) SetLCCB( stdp1, stdp2, centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Lambert Conformal Conic (Belgium)
func (SpatialReference) SetLinearUnits ¶
func (sr SpatialReference) SetLinearUnits(name string, toMeters float64) error
Set the linear units for the projection
func (SpatialReference) SetLinearUnitsAndUpdateParameters ¶
func (sr SpatialReference) SetLinearUnitsAndUpdateParameters(name string, toMeters float64) error
Set the linear units for the target node and update all existing linear parameters
func (SpatialReference) SetLocalCS ¶
func (sr SpatialReference) SetLocalCS(name string) error
Set the user visible local CS name
func (SpatialReference) SetMC ¶
func (sr SpatialReference) SetMC( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Miller Cylindrical
func (SpatialReference) SetMercator ¶
func (sr SpatialReference) SetMercator( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Mercator
func (SpatialReference) SetMollweide ¶
func (sr SpatialReference) SetMollweide( centralMeridian, falseEasting, falseNorthing float64, ) error
Set tp Mollweide
func (SpatialReference) SetNZMG ¶
func (sr SpatialReference) SetNZMG( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to New Zealand Map Grid
func (SpatialReference) SetNormalizedProjectionParameter ¶
func (sr SpatialReference) SetNormalizedProjectionParameter(name string, value float64) error
Set a projection parameter with a normalized value
func (SpatialReference) SetOS ¶
func (sr SpatialReference) SetOS( originLat, meridian, scale, falseEasting, falseNorthing float64, ) error
Set to Oblique Stereographic
func (SpatialReference) SetOrthographic ¶
func (sr SpatialReference) SetOrthographic( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Orthographic
func (SpatialReference) SetPS ¶
func (sr SpatialReference) SetPS( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Polar Stereographic
func (SpatialReference) SetPolyconic ¶
func (sr SpatialReference) SetPolyconic( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Polyconic
func (SpatialReference) SetProjectedCS ¶
func (sr SpatialReference) SetProjectedCS(name string) error
Set the user visible projected CS name
func (SpatialReference) SetProjectionByName ¶
func (sr SpatialReference) SetProjectionByName(name string) error
Set a projection by name
func (SpatialReference) SetProjectionParameter ¶
func (sr SpatialReference) SetProjectionParameter(name string, value float64) error
Set a projection parameter value
func (SpatialReference) SetRobinson ¶
func (sr SpatialReference) SetRobinson( centerLong, falseEasting, falseNorthing float64, ) error
Set to Robinson
func (SpatialReference) SetSOC ¶
func (sr SpatialReference) SetSOC( latitudeOfOrigin, centralMeridian, falseEasting, falseNorthing float64, ) error
Set to Swiss Oblique Cylindrical
func (SpatialReference) SetSinusoidal ¶
func (sr SpatialReference) SetSinusoidal( centerLong, falseEasting, falseNorthing float64, ) error
Set to Sinusoidal
func (SpatialReference) SetStatePlane ¶
func (sr SpatialReference) SetStatePlane(zone int, nad83 bool) error
Set State Plane projection definition
func (SpatialReference) SetStatePlaneWithUnits ¶
func (sr SpatialReference) SetStatePlaneWithUnits( zone int, nad83 bool, unitName string, factor float64, ) error
Set State Plane projection definition
func (SpatialReference) SetStereographic ¶
func (sr SpatialReference) SetStereographic( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Stereographic
func (SpatialReference) SetTM ¶
func (sr SpatialReference) SetTM( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Transverse Mercator
func (SpatialReference) SetTMG ¶
func (sr SpatialReference) SetTMG( centerLat, centerLong, falseEasting, falseNorthing float64, ) error
Set to Tunisia Mining Grid
func (SpatialReference) SetTMSO ¶
func (sr SpatialReference) SetTMSO( centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Transverse Mercator (South Oriented)
func (SpatialReference) SetTMVariant ¶
func (sr SpatialReference) SetTMVariant( variantName string, centerLat, centerLong, scale, falseEasting, falseNorthing float64, ) error
Set to Transverse Mercator variant
func (SpatialReference) SetTOWGS84 ¶
func (sr SpatialReference) SetTOWGS84(dx, dy, dz, ex, ey, ez, ppm float64) error
Set the Bursa-Wolf conversion to WGS84
func (SpatialReference) SetTargetLinearUnits ¶
func (sr SpatialReference) SetTargetLinearUnits(target, units string, toMeters float64) error
Set the linear units for the target node
func (SpatialReference) SetUTM ¶
func (sr SpatialReference) SetUTM(zone int, north bool) error
Set UTM projection definition
func (SpatialReference) SetVDG ¶
func (sr SpatialReference) SetVDG( centerLong, falseEasting, falseNorthing float64, ) error
Set to VanDerGrinten
func (SpatialReference) SetVerticalCS ¶
func (sr SpatialReference) SetVerticalCS(csName, datumName string, datumType int) error
Set up the vertical coordinate system
func (SpatialReference) SetWellKnownGeographicCS ¶
func (sr SpatialReference) SetWellKnownGeographicCS(name string) error
Set geographic CS based on well known name
func (SpatialReference) StripCTParams ¶
func (sr SpatialReference) StripCTParams() error
Strip OGC CT parameters
func (SpatialReference) TOWGS84 ¶
func (sr SpatialReference) TOWGS84() (coeff [7]float64, errVal error)
Fetch the TOWGS84 parameters if available
func (SpatialReference) TargetLinearUnits ¶
func (sr SpatialReference) TargetLinearUnits(target string) (string, float64)
Fetch linear units for target
func (SpatialReference) ToMICoordSys ¶
func (sr SpatialReference) ToMICoordSys() (output string, errVal error)
Export coordinate system in Mapinfo style CoordSys format
func (SpatialReference) ToPCI ¶
func (sr SpatialReference) ToPCI() (proj, units string, params []float64, errVal error)
Export coordinate system in PCI format
func (SpatialReference) ToPrettyWKT ¶
func (sr SpatialReference) ToPrettyWKT(simplify bool) (string, error)
Export coordinate system to a nicely formatted WKT string
func (SpatialReference) ToProj4 ¶
func (sr SpatialReference) ToProj4() (string, error)
Export coordinate system in PROJ.4 format
func (SpatialReference) ToUSGS ¶
func (sr SpatialReference) ToUSGS() (proj, zone int, params []float64, datum int, errVal error)
Export coordinate system to USGS GCTP projection definition
func (SpatialReference) ToWKT ¶
func (sr SpatialReference) ToWKT() (string, error)
Export coordinate system to WKT
func (SpatialReference) ToXML ¶
func (sr SpatialReference) ToXML() (xml string, errVal error)
Export coordinate system in XML format
func (SpatialReference) UTMZone ¶
func (sr SpatialReference) UTMZone() (zone int, north bool)
Get UTM zone information
func (SpatialReference) Validate ¶
func (sr SpatialReference) Validate() error
Validate spatial reference tokens
type StyleTable ¶
type StyleTable struct {
// contains filtered or unexported fields
}