geojson

Documentation

Index

• func FromParquet(file *parquet.File, writer io.Writer) error
• func GetDefaultMetadata() *geoparquet.GeoMetadata
• func SchemaOf(feature *Feature) (*parquet.Schema, error)
• func ToParquet(input io.Reader, output io.Writer) error
• type ConvertFn
• type Feature
  • func (f *Feature) MarshalJSON() ([]byte, error)
  • func (f *Feature) UnmarshalJSON(data []byte) error
• type FeatureReader
  • func NewFeatureReader(input io.Reader) *FeatureReader
  • func (reader *FeatureReader) Converter(max int) (*TypeConverter, error)
  • func (r *FeatureReader) Next() (*Feature, error)
• type FeatureWriter
  • func NewFeatureWriter(writer io.Writer, geoMetadata *geoparquet.GeoMetadata, schema *parquet.Schema) (*FeatureWriter, error)
  • func (w *FeatureWriter) Close() error
  • func (w *FeatureWriter) Write(row parquet.Row) error
• type FieldConverter
• type TypeConverter
  • func ConverterFromFeature(feature *Feature) (*TypeConverter, error)

Functions

func FromParquet

func FromParquet(file *parquet.File, writer io.Writer) error

func GetDefaultMetadata

func GetDefaultMetadata() *geoparquet.GeoMetadata

func SchemaOf

func SchemaOf(feature *Feature) (*parquet.Schema, error)

func ToParquet

func ToParquet(input io.Reader, output io.Writer) error

Types

type ConvertFn

type ConvertFn func(any) (any, error)

type Feature

type Feature struct {
	Id         any            `json:"id,omitempty"`
	Type       string         `json:"type"`
	Geometry   orb.Geometry   `json:"geometry"`
	Properties map[string]any `json:"properties"`
}

func (*Feature) MarshalJSON

func (f *Feature) MarshalJSON() ([]byte, error)

func (*Feature) UnmarshalJSON

func (f *Feature) UnmarshalJSON(data []byte) error

type FeatureReader

type FeatureReader struct {
	// contains filtered or unexported fields
}

func NewFeatureReader

func NewFeatureReader(input io.Reader) *FeatureReader

func (*FeatureReader) Converter

func (reader *FeatureReader) Converter(max int) (*TypeConverter, error)

func (*FeatureReader) Next

func (r *FeatureReader) Next() (*Feature, error)

type FeatureWriter

type FeatureWriter struct {
	// contains filtered or unexported fields
}

func NewFeatureWriter

func NewFeatureWriter(writer io.Writer, geoMetadata *geoparquet.GeoMetadata, schema *parquet.Schema) (*FeatureWriter, error)

func (*FeatureWriter) Close

func (w *FeatureWriter) Close() error

func (*FeatureWriter) Write

func (w *FeatureWriter) Write(row parquet.Row) error

type FieldConverter

type FieldConverter struct {
	Field   reflect.StructField
	Convert ConvertFn
}

type TypeConverter

type TypeConverter struct {
	Type    reflect.Type
	Convert ConvertFn
}

func ConverterFromFeature

func ConverterFromFeature(feature *Feature) (*TypeConverter, error)