# Packages
Package spaceerr A representation of error.
Package topograph the topological relations between points, line and surface entities in DE-9IM model are given.
Package topograph the topological relations between points, line and surface entities in DE-9IM model are given.
# Functions
BufferInMeter ...
Centroid Computes the centroid point of a geometry.
CreateCircle Returns valid circle.
CreateCircleWithSegments Returns valid circle.
CreateElementValid Returns valid geom element.
CreateElementValidWithCoordSys Returns valid geom element.
Distance returns distance Between the two Geometry.
TransGeometry trans steric to geometry.
# Constants
BD09 Guojia cehui ju 02+BD ,unit degree.
BD09Web Guojia cehui ju 02+BD, unit m.
const Coordinate System.
const Coordinate System.
GCJ02 Guojia cehui ju 02 ,unit degree.
GCJ02Web Guojia cehui ju 02 Mercator, unit m.
PseudoMercator WGS 84 / Pseudo-Mercator.
const geomtype.
const geomtype.
const geomtype.
const geomtype.
const geomtype.
const geomtype.
const geomtype.
const geomtype.
const geomtype.
WGS84 World Geodetic System一1984 Coordinate System.
const Coordinate System.
# Structs
A Bound represents a closed box or rectangle.
Circle describes a circle Valid.
Coordinate coord.
GeometryValid describes a geographic Element Valid.
Line straight line .
# Interfaces
Geometry is the interface implemented by other spatial objects.
# Type aliases
A Collection is a collection of geometries that is also a Geometry.
LineString represents a set of points to be thought of as a polyline.
MultiLineString is a set of polylines.
A MultiPoint represents a set of points .
MultiPolygon is a set of polygons.
Point describes a geographic point.
Polygon is a closed area.
Ring represents a set of ring on the earth.