geos

package

v0.0.0-...-85720d3 Latest Latest Go to latest Published: May 7, 2014 License: Apache-2.0 Imports: 5 Imported by: 0

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Repository

github.com/Kotaimen/imposm3

Links

Open Source Insights

Documentation ¶

Overview ¶

Package geos provides a wrapper to the GEOS library.

Constants ¶

This section is empty.

Variables ¶

View Source

var NilBounds = Bounds{1e20, 1e20, -1e20, -1e20}

Functions ¶

This section is empty.

Types ¶

type Bounds ¶

type Bounds struct {
	MinX float64
	MinY float64
	MaxX float64
	MaxY float64
}

type CoordSeq ¶

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

func (*CoordSeq) AsLineString ¶

func (this *CoordSeq) AsLineString(handle *Geos) (*Geom, error)

func (*CoordSeq) AsLinearRing ¶

func (this *CoordSeq) AsLinearRing(handle *Geos) (*Geom, error)

func (*CoordSeq) AsPoint ¶

func (this *CoordSeq) AsPoint(handle *Geos) (*Geom, error)

func (*CoordSeq) SetXY ¶

func (this *CoordSeq) SetXY(handle *Geos, i uint32, x, y float64) error

type CreateError ¶

type CreateError string

func (CreateError) Error ¶

func (e CreateError) Error() string

type Error ¶

type Error string

func (Error) Error ¶

func (e Error) Error() string

type Geom ¶

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

func (*Geom) Area ¶

func (this *Geom) Area() float64

func (*Geom) Bounds ¶

func (this *Geom) Bounds() Bounds

func (*Geom) Length ¶

func (this *Geom) Length() float64

type Geos ¶

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

func NewGeos ¶

func NewGeos() *Geos

func (*Geos) AsEwkbHex ¶

func (this *Geos) AsEwkbHex(geom *Geom) []byte

func (*Geos) AsWkb ¶

func (this *Geos) AsWkb(geom *Geom) []byte

func (*Geos) AsWkt ¶

func (this *Geos) AsWkt(geom *Geom) string

func (*Geos) BoundsPolygon ¶

func (this *Geos) BoundsPolygon(bounds Bounds) *Geom

func (*Geos) Buffer ¶

func (this *Geos) Buffer(geom *Geom, size float64) *Geom

func (*Geos) Clone ¶

func (this *Geos) Clone(geom *Geom) *Geom

func (*Geos) Contains ¶

func (this *Geos) Contains(a, b *Geom) bool

func (*Geos) CreateCoordSeq ¶

func (this *Geos) CreateCoordSeq(size, dim uint32) (*CoordSeq, error)

func (*Geos) CreateIndex ¶

func (this *Geos) CreateIndex() *Index

func (*Geos) Destroy ¶

func (this *Geos) Destroy(geom *Geom)

func (*Geos) DestroyCoordSeq ¶

func (this *Geos) DestroyCoordSeq(coordSeq *CoordSeq)

func (*Geos) DestroyLater ¶

func (this *Geos) DestroyLater(geom *Geom)

func (*Geos) Equals ¶

func (this *Geos) Equals(a, b *Geom) bool

func (*Geos) ExteriorRing ¶

func (this *Geos) ExteriorRing(geom *Geom) *Geom

func (*Geos) Finish ¶

func (this *Geos) Finish()

func (*Geos) FromWkb ¶

func (this *Geos) FromWkb(wkb []byte) *Geom

func (*Geos) FromWkt ¶

func (this *Geos) FromWkt(wkt string) *Geom

func (*Geos) Geoms ¶

func (this *Geos) Geoms(geom *Geom) []*Geom

func (*Geos) IndexAdd ¶

func (this *Geos) IndexAdd(index *Index, geom *Geom)

IndexQuery adds a geom to the index with the id.

func (*Geos) IndexQuery ¶

func (this *Geos) IndexQuery(index *Index, geom *Geom) []IndexGeom

IndexQuery queries the index for intersections with geom.

func (*Geos) Intersection ¶

func (this *Geos) Intersection(a, b *Geom) *Geom

func (*Geos) Intersects ¶

func (this *Geos) Intersects(a, b *Geom) bool

func (*Geos) IsEmpty ¶

func (this *Geos) IsEmpty(geom *Geom) bool

func (*Geos) IsValid ¶

func (this *Geos) IsValid(geom *Geom) bool

func (*Geos) LineMerge ¶

func (this *Geos) LineMerge(lines []*Geom) []*Geom

LineMerge tries to merge lines. Returns slice of LineStrings. Destroys lines and returns new allocated LineString Geoms.

func (*Geos) MultiLineString ¶

func (this *Geos) MultiLineString(lines []*Geom) *Geom

func (*Geos) MultiPolygon ¶

func (this *Geos) MultiPolygon(polygons []*Geom) *Geom

func (*Geos) NumGeoms ¶

func (this *Geos) NumGeoms(geom *Geom) int32

func (*Geos) Point ¶

func (this *Geos) Point(x, y float64) *Geom

func (*Geos) Polygon ¶

func (this *Geos) Polygon(exterior *Geom, interiors []*Geom) *Geom

func (*Geos) Prepare ¶

func (this *Geos) Prepare(geom *Geom) *PreparedGeom

func (*Geos) PreparedContains ¶

func (this *Geos) PreparedContains(a *PreparedGeom, b *Geom) bool

func (*Geos) PreparedDestroy ¶

func (this *Geos) PreparedDestroy(geom *PreparedGeom)

func (*Geos) PreparedIntersects ¶

func (this *Geos) PreparedIntersects(a *PreparedGeom, b *Geom) bool

func (*Geos) SetHandleSrid ¶

func (this *Geos) SetHandleSrid(srid int)

func (*Geos) SimplifyPreserveTopology ¶

func (this *Geos) SimplifyPreserveTopology(geom *Geom, tolerance float64) *Geom

func (*Geos) Type ¶

func (this *Geos) Type(geom *Geom) string

func (*Geos) UnionPolygons ¶

func (this *Geos) UnionPolygons(polygons []*Geom) *Geom

UnionPolygons tries to merge polygons. Returns a single (Multi)Polygon. Destroys polygons and returns new allocated (Multi)Polygon as necessary.

type Index ¶

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

type IndexGeom ¶

type IndexGeom struct {
	Geom *Geom
}

IndexGeom is a struct for indexed geometries used by Index and returned by IndexQuery.

type PreparedGeom ¶

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

Source Files ¶

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