spatial

package
v0.103.2 Latest Latest
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 Go to latest Published: Apr 19, 2021 License: Apache-2.0 Imports: 8 Imported by: 0

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Index

Constants

View Source 
const (
	XDR byte = 0x00 // Big endian
	NDR      = 0x01 // Little endian
)

Byte orders

Variables

This section is empty.

Functions

func EncodeEWKB 

func EncodeEWKB(g STGeometry, xdr bool, srid int32) ([]byte, error)

EncodeEWKB encodes a geometry to the "extended well known binary" format.

func EncodeWKB 

func EncodeWKB(g STGeometry, xdr bool) ([]byte, error)

EncodeWKB encodes a geometry to the "well known binary" format.

func EncodeWKT 

func EncodeWKT(g STGeometry) (string, error)

EncodeWKT encodes a geometry to the "well known text" format.

func NaN 

func NaN() float64

NaN returns a 'not-a-number' value.

Types

type Dim 

type Dim byte

Dim is the type for dimensions (2d, Z, M, MZ) 

const (
	Dim2d Dim = iota // two dimensional
	DimZ             // three dimensional
	DimM             // two dimensional with additinal dimensional information in M as time, road-mile, distance or the like
	DimZM            // three dimensional with additinal dimensional information in M
)

Dimensions

type Point 

type Point struct{ X, Y, Z, M float64 }

Point represents whether a 2d, Z, M or ZM dimensional point.

func (Point) String 

func (p Point) String() string

type Points 

type Points []Point

Points is a collection of 0..n points.

func (Points) String 

func (pts Points) String() string

type STGeometry 

type STGeometry interface {
	// contains filtered or unexported methods
}

STGeometry is the interface representing a spatial type.

type STGeometryCollection 

type STGeometryCollection struct {
	Dim        Dim
	Geometries []STGeometry
}

STGeometryCollection is the spatial type for a geometry collection.

type STLineString 

type STLineString struct {
	Dim    Dim
	Points Points
}

STLineString is the spatial type for a linestring.

type STMultiLineString 

type STMultiLineString struct {
	Dim         Dim
	LineStrings []STLineString
}

STMultiLineString is the spatial type for a multi line string.

type STMultiPoint 

type STMultiPoint struct {
	Dim    Dim
	Points Points
}

STMultiPoint is the spatial type for a multipoint.

type STMultiPolygon 

type STMultiPolygon struct {
	Dim      Dim
	Polygons []STPolygon
}

STMultiPolygon is the spatial type for a multi polygon.

type STPoint 

type STPoint struct {
	Dim   Dim
	Point *Point
}

STPoint is the spatial type for a point.

type STPolygon 

type STPolygon struct {
	Dim   Dim
	Rings []Points
}

STPolygon is the spatial type for a polygon.

Source Files

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