geos

package module

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Versions in this module

v0

v0.17.1

Mar 13, 2024

v0.17.0

Feb 26, 2024

Changes in this version

+ type Box2D struct

+ MaxX float64

+ MaxY float64

+ MinX float64

+ MinY float64

+ func NewBox2D(minX, minY, maxX, maxY float64) *Box2D

+ func NewBox2DEmpty() *Box2D

+ func (b *Box2D) Contains(other *Box2D) bool

+ func (b *Box2D) ContainsPoint(x, y float64) bool

+ func (b *Box2D) ContextGeom(context *Context) *Geom

+ func (b *Box2D) Equals(other *Box2D) bool

+ func (b *Box2D) Geom() *Geom

+ func (b *Box2D) Height() float64

+ func (b *Box2D) Intersects(other *Box2D) bool

+ func (b *Box2D) IsEmpty() bool

+ func (b *Box2D) IsPoint() bool

+ func (b *Box2D) String() string

+ func (b *Box2D) Width() float64

+ type BufferParams struct

+ func (p *BufferParams) Destroy()

+ func (p *BufferParams) SetEndCapStyle(style BufCapStyle) *BufferParams

+ func (p *BufferParams) SetJoinStyle(style BufJoinStyle) *BufferParams

+ func (p *BufferParams) SetMitreLimit(mitreLimit float64) *BufferParams

+ func (p *BufferParams) SetQuadrantSegments(quadSegs int) *BufferParams

+ func (p *BufferParams) SetSingleSided(singleSided bool) *BufferParams

type Context

+ func (c *Context) NewBufferParams() *BufferParams

type CoordSeq

+ func (s *CoordSeq) Destroy()

type Geom

+ func (g *Geom) BufferWithParams(bufferParams *BufferParams, width float64) *Geom

+ func (g *Geom) ClipByBox2D(box2d *Box2D) *Geom

type PrepGeom

+ func (pg *PrepGeom) Destroy()

v0.16.1

Jan 15, 2024

v0.16.0

Jan 15, 2024

Changes in this version

type Geom

+ func (g *Geom) ClipByBounds(bounds *Bounds) *Geom

+ func (g *Geom) ToEWKBWithSRID() []byte

v0.15.0

Jan 11, 2024

Changes in this version

+ func VersionCompare(major, minor, patch int) int

v0.14.0

Oct 30, 2023

Changes in this version

type Geom

+ func (g *Geom) ConcaveHullByLength(ratio float64, allowHoles uint) *Geom

+ func (g *Geom) MakeValidWithParams(method MakeValidMethod, collapse MakeValidCollapsed) *Geom

+ type MakeValidCollapsed int

+ const MakeValidDiscardCollapsed

+ const MakeValidKeepCollapsed

+ type MakeValidMethod int

+ const MakeValidLinework

+ const MakeValidStructure

v0.13.2

Mar 29, 2023

v0.13.1

Mar 14, 2023

v0.13.0

Mar 5, 2023

Changes in this version

type Context

+ func (c *Context) NewPointFromXY(x, y float64) *Geom

+ func (c *Context) OrientationIndex(Ax, Ay, Bx, By, Px, Py float64) int

type Geom

+ func NewPointFromXY(x, y float64) *Geom

+ func (g *Geom) Boundary() *Geom

+ func (g *Geom) Centroid() *Geom

+ func (g *Geom) ConstrainedDelaunayTriangulation() *Geom

+ func (g *Geom) EndPoint() *Geom

+ func (g *Geom) LargestEmptyCircle(other *Geom, tolerance float64) *Geom

+ func (g *Geom) LineMerge() *Geom

+ func (g *Geom) MinimumClearance() float64

+ func (g *Geom) MinimumClearanceLine() *Geom

+ func (g *Geom) NumCoordinates() int

+ func (g *Geom) PointOnSurface() *Geom

+ func (g *Geom) Snap(other *Geom, tolerance float64) *Geom

+ func (g *Geom) StartPoint() *Geom

v0.12.0

Mar 1, 2023

Changes in this version

type Context

+ func (c *Context) NewSTRtree(nodeCapacity int) *STRtree

+ func (c *Context) RelatePatternMatch(mat, pat string) bool

+ func (c *Context) SegmentIntersection(ax0, ay0, ax1, ay1, bx0, by0, bx1, by1 float64) (float64, float64, bool)

type ContextOption

+ func WithSTRtreeFinalizeFunc(strTreeFinalizeFunc func(*STRtree)) ContextOption

type Geom

+ func (g *Geom) Relate(other *Geom) string

+ func (g *Geom) RelateBoundaryNodeRule(other *Geom, bnr RelateBoundaryNodeRule) string

+ func (g *Geom) RelatePattern(other *Geom, pat string) bool

+ func (g *Geom) Reverse() *Geom

+ type RelateBoundaryNodeRule int

+ const RelateBoundaryNodeRuleEndpoint

+ const RelateBoundaryNodeRuleMod2

+ const RelateBoundaryNodeRuleMonovalentEndpoint

+ const RelateBoundaryNodeRuleMultivalentEndpoint

+ const RelateBoundaryNodeRuleOGC

+ type STRtree struct

+ func (t *STRtree) Destroy()

+ func (t *STRtree) Insert(g *Geom, value any) error

+ func (t *STRtree) Iterate(callback func(any))

+ func (t *STRtree) Nearest(value any, valueEnvelope *Geom, geomfn func(any) *Geom) any

+ func (t *STRtree) Query(g *Geom, callback func(any))

+ func (t *STRtree) Remove(g *Geom, value any) bool

v0.11.0

Feb 23, 2023

Changes in this version

type Geom

+ func (g *Geom) Project(other *Geom) float64

+ func (g *Geom) ProjectNormalized(other *Geom) float64

v0.10.0

Feb 9, 2023

Changes in this version

+ var DefaultContext = NewContext()

type Bounds

+ func (b *Bounds) ContextGeom(context *Context) *Geom

type CoordSeq

+ func (s *CoordSeq) IsCCW() bool

type Geom

+ func (g *Geom) BuildArea() *Geom

+ func (g *Geom) ClipByRect(xMin float64, yMin float64, xMax float64, yMax float64) *Geom

+ func (g *Geom) CoverageUnion() *Geom

+ func (g *Geom) HasZ() bool

+ func (g *Geom) Node() *Geom

+ func (g *Geom) Normalize() *Geom

+ func (g *Geom) Precision() float64

+ func (g *Geom) SetUserData(userdata uintptr) *Geom

+ func (g *Geom) SharedPaths(other *Geom) *Geom

+ func (g *Geom) SymDifferencePrec(other *Geom, gridSize float64) *Geom

+ func (g *Geom) UnaryUnionPrec(gridSize float64) *Geom

+ func (g *Geom) Union(other *Geom) *Geom

+ func (g *Geom) UnionPrec(other *Geom, gridSize float64) *Geom

+ func (g *Geom) UserData() uintptr

type PrecisionRule

+ const PrecisionRuleNoTopo

+ const PrecisionRuleNone

v0.9.1

Feb 5, 2023

v0.9.0

Feb 2, 2023

Changes in this version

type Context

+ func (c *Context) Polygonize(geoms []*Geom) *Geom

+ func (c *Context) PolygonizeValid(geoms []*Geom) *Geom

type Geom

+ func Polygonize(geoms []*Geom) *Geom

+ func PolygonizeValid(geoms []*Geom) *Geom

+ func (g *Geom) PolygonizeFull() (geom, cuts, dangles, invalidRings *Geom)

v0.8.0

Jan 20, 2023

Changes in this version

type Geom

+ func (g *Geom) MakeValid() *Geom

+ func (g *Geom) SetPrecision(gridSize float64, flags PrecisionRule) *Geom

+ func (g *Geom) Simplify(tolerance float64) *Geom

+ func (g *Geom) TopologyPreserveSimplify(tolerance float64) *Geom

+ type PrecisionRule int

+ const PrecisionRuleKeepCollapsed

+ const PrecisionRulePointwise

+ const PrecisionRuleValidOutput

v0.7.0

Dec 13, 2022

Changes in this version

+ type BufCapStyle int

+ const BufCapStyleFlat

+ const BufCapStyleRound

+ const BufCapStyleSquare

+ type BufJoinStyle int

+ const BufJoinStyleBevel

+ const BufJoinStyleMitre

+ const BufJoinStyleRound

type Geom

+ func (g *Geom) BufferWithStyle(width float64, quadsegs int, endCapStyle BufCapStyle, joinStyle BufJoinStyle, ...) *Geom

+ func (g *Geom) ConcaveHull(ratio float64, allowHoles uint) *Geom

+ func (g *Geom) Interpolate(d float64) *Geom

+ func (g *Geom) InterpolateNormalized(proportion float64) *Geom

+ func (g *Geom) IntersectionPrec(other *Geom, gridSize float64) *Geom

+ func (g *Geom) MaximumInscribedCircle(tolerance float64) *Geom

+ func (g *Geom) MinimumRotatedRectangle() *Geom

+ func (g *Geom) OffsetCurve(width float64, quadsegs int, joinStyle BufJoinStyle, mitreLimit float64) *Geom

+ func (g *Geom) SymDifference(other *Geom) *Geom

+ type TypeID int

+ const TypeIDGeometryCollection

+ const TypeIDLineString

+ const TypeIDLinearRing

+ const TypeIDMultiLineString

+ const TypeIDMultiPoint

+ const TypeIDMultiPolygon

+ const TypeIDPoint

+ const TypeIDPolygon

v0.6.0

Dec 9, 2022

Changes in this version

type Geom

+ func (g *Geom) Difference(other *Geom) *Geom

+ func (g *Geom) DifferencePrec(other *Geom, gridSize float64) *Geom

v0.5.1

Nov 29, 2022

v0.5.0

Oct 28, 2022

Changes in this version

type Geom

+ func (g *Geom) DistanceIndexed(other *Geom) float64

+ func (g *Geom) DistanceWithin(other *Geom, dist float64) bool

+ func (g *Geom) FrechetDistance(other *Geom) float64

+ func (g *Geom) FrechetDistanceDensify(other *Geom, densifyFrac float64) float64

+ func (g *Geom) HausdorffDistance(other *Geom) float64

+ func (g *Geom) HausdorffDistanceDensify(other *Geom, densifyFrac float64) float64

v0.4.0

Sep 14, 2022

Changes in this version

type Context

+ func (c *Context) NewGeomFromGeoJSON(geoJSON string) (*Geom, error)

type Geom

+ func NewGeomFromGeoJSON(geoJSON string) (*Geom, error)

+ func (g *Geom) Area() float64

+ func (g *Geom) Buffer(width float64, quadsegs int) *Geom

+ func (g *Geom) Densify(tolerance float64) *Geom

+ func (g *Geom) Length() float64

+ func (g *Geom) MinimumWidth() *Geom

+ func (g *Geom) ToGeoJSON(indent int) string

+ func (g *Geom) UnaryUnion() *Geom

v0.3.0

Apr 21, 2022

Changes in this version

type Context

+ func (c *Context) NewPoints(coords [][]float64) []*Geom

type Geom

+ func (g *Geom) Distance(other *Geom) float64

+ func (g *Geom) NearestPoints(other *Geom) [][]float64

v0.2.0

Apr 5, 2022

v0.1.0

Jun 20, 2021

Changes in this version

+ const VersionMajor

+ const VersionMinor

+ const VersionPatch

type Bounds

+ func NewBounds(minX, minY, maxX, maxY float64) *Bounds

+ type ContextOption func(*Context)

+ func WithGeomFinalizeFunc(geomFinalizeFunc func(*Geom)) ContextOption

v0.0.1

May 5, 2020

Changes in this version

+ type Bounds struct

+ MaxX float64

+ MaxY float64

+ MinX float64

+ MinY float64

+ func NewBoundsEmpty() *Bounds

+ func (b *Bounds) Contains(other *Bounds) bool

+ func (b *Bounds) ContainsPoint(x, y float64) bool

+ func (b *Bounds) Draw(gc draw2d.GraphicContext)

+ func (b *Bounds) Equals(other *Bounds) bool

+ func (b *Bounds) Geom() *Geom

+ func (b *Bounds) Height() float64

+ func (b *Bounds) Intersects(other *Bounds) bool

+ func (b *Bounds) IsEmpty() bool

+ func (b *Bounds) IsPoint() bool

+ func (b *Bounds) String() string

+ func (b *Bounds) Width() float64

+ type Context struct

+ func NewContext() *Context

+ func (c *Context) Clone(g *Geom) *Geom

+ func (c *Context) NewCollection(typeID GeometryTypeID, geoms []*Geom) *Geom

+ func (c *Context) NewCoordSeq(size, dims int) *CoordSeq

+ func (c *Context) NewCoordSeqFromCoords(coords [][]float64) *CoordSeq

+ func (c *Context) NewEmptyCollection(typeID GeometryTypeID) *Geom

+ func (c *Context) NewEmptyLineString() *Geom

+ func (c *Context) NewEmptyPoint() *Geom

+ func (c *Context) NewEmptyPolygon() *Geom

+ func (c *Context) NewGeomFromBounds(bounds *Bounds) *Geom

+ func (c *Context) NewGeomFromWKB(wkb []byte) (*Geom, error)

+ func (c *Context) NewGeomFromWKT(wkt string) (*Geom, error)

+ func (c *Context) NewLineString(coords [][]float64) *Geom

+ func (c *Context) NewLinearRing(coords [][]float64) *Geom

+ func (c *Context) NewPoint(coord []float64) *Geom

+ func (c *Context) NewPolygon(coordss [][][]float64) *Geom

+ type CoordSeq struct

+ func NewCoordSeq(size, dims int) *CoordSeq

+ func NewCoordSeqFromCoords(coords [][]float64) *CoordSeq

+ func (s *CoordSeq) Clone() *CoordSeq

+ func (s *CoordSeq) Dimensions() int

+ func (s *CoordSeq) Ordinate(idx, dim int) float64

+ func (s *CoordSeq) SetOrdinate(idx, dim int, val float64)

+ func (s *CoordSeq) SetX(idx int, val float64)

+ func (s *CoordSeq) SetY(idx int, val float64)

+ func (s *CoordSeq) SetZ(idx int, val float64)

+ func (s *CoordSeq) Size() int

+ func (s *CoordSeq) ToCoords() [][]float64

+ func (s *CoordSeq) X(idx int) float64

+ func (s *CoordSeq) Y(idx int) float64

+ func (s *CoordSeq) Z(idx int) float64

+ type Error string

+ func (e Error) Error() string

+ type Geom struct

+ func Clone(g *Geom) *Geom

+ func NewCollection(typeID GeometryTypeID, geoms []*Geom) *Geom

+ func NewEmptyCollection(typeID GeometryTypeID) *Geom

+ func NewEmptyLineString() *Geom

+ func NewEmptyPoint() *Geom

+ func NewEmptyPolygon() *Geom

+ func NewGeomFromBounds(bounds *Bounds) *Geom

+ func NewGeomFromWKB(wkb []byte) (*Geom, error)

+ func NewGeomFromWKT(wkt string) (*Geom, error)

+ func NewLineString(coords [][]float64) *Geom

+ func NewLinearRing(coords [][]float64) *Geom

+ func NewPoint(coord []float64) *Geom

+ func NewPolygon(coordss [][][]float64) *Geom

+ func (g *Geom) Bounds() *Bounds

+ func (g *Geom) Clone() *Geom

+ func (g *Geom) Contains(other *Geom) bool

+ func (g *Geom) ConvexHull() *Geom

+ func (g *Geom) CoordSeq() *CoordSeq

+ func (g *Geom) CoveredBy(other *Geom) bool

+ func (g *Geom) Covers(other *Geom) bool

+ func (g *Geom) Crosses(other *Geom) bool

+ func (g *Geom) Destroy()

+ func (g *Geom) Disjoint(other *Geom) bool

+ func (g *Geom) Envelope() *Geom

+ func (g *Geom) Equals(other *Geom) bool

+ func (g *Geom) EqualsExact(other *Geom, tolerance float64) bool

+ func (g *Geom) ExteriorRing() *Geom

+ func (g *Geom) Geometry(n int) *Geom

+ func (g *Geom) InteriorRing(n int) *Geom

+ func (g *Geom) Intersection(other *Geom) *Geom

+ func (g *Geom) Intersects(other *Geom) bool

+ func (g *Geom) IsClosed() bool

+ func (g *Geom) IsEmpty() bool

+ func (g *Geom) IsRing() bool

+ func (g *Geom) IsSimple() bool

+ func (g *Geom) IsValid() bool

+ func (g *Geom) IsValidReason() string

+ func (g *Geom) NumGeometries() int

+ func (g *Geom) NumInteriorRings() int

+ func (g *Geom) NumPoints() int

+ func (g *Geom) Overlaps(other *Geom) bool

+ func (g *Geom) Point(n int) *Geom

+ func (g *Geom) Prepare() *PrepGeom

+ func (g *Geom) SRID() int

+ func (g *Geom) SetSRID(srid int)

+ func (g *Geom) String() string

+ func (g *Geom) ToWKB() []byte

+ func (g *Geom) ToWKT() string

+ func (g *Geom) Touches(other *Geom) bool

+ func (g *Geom) Type() string

+ func (g *Geom) TypeID() GeometryTypeID

+ func (g *Geom) Within(other *Geom) bool

+ func (g *Geom) X() float64

+ func (g *Geom) Y() float64

+ type GeometryTypeID int

+ const GeometryCollectionTypeID

+ const LineStringTypeID

+ const LinearRingTypeID

+ const MultiLineStringTypeID

+ const MultiPointTypeID

+ const MultiPolygonTypeID

+ const PointTypeID

+ const PolygonTypeID

+ type PrepGeom struct

+ func (pg *PrepGeom) Contains(g *Geom) bool

+ func (pg *PrepGeom) ContainsProperly(g *Geom) bool

+ func (pg *PrepGeom) CoveredBy(g *Geom) bool

+ func (pg *PrepGeom) Covers(g *Geom) bool

+ func (pg *PrepGeom) Crosses(g *Geom) bool

+ func (pg *PrepGeom) Disjoint(g *Geom) bool

+ func (pg *PrepGeom) Intersects(g *Geom) bool

+ func (pg *PrepGeom) Overlaps(g *Geom) bool

+ func (pg *PrepGeom) Touches(g *Geom) bool

+ func (pg *PrepGeom) Within(g *Geom) bool

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