songjiahong / Geo.Library

Geo library to read/write to wkt/geojson and do intersection, union, difference etc. Support point, mulitpoint, polygon, multipolygon.

Geo.Library - a 2D geospatial library for .NET

Geo 2D library to read/write to wkt/wkb/geojson and do intersection, union, difference etc calculation. Support point, mulitpoint, polygon, multipolygon.

Nuget

Install-Package GeoLibrary

Support Geometry Types

• Point
• MultiPoint
• LineString
• Polygon
• MultiPolygon

Features

• WKT Support
  • Read from WKT string
  • Write to WKT string
• GeoJson Support
  • Read from GeoJson string
  • Write to GeoJson string
• WKB Support
  • Read from WKB hex string
  • Write to WKB hex string
• Geometry Operations
  • Intersection Check
    • Point & Point
    • Point & MultiPoint
    • MultiPoint & MultiPoint
    • Point & Polygon (Whether a point is inside a polygon)
    • MultiPoint & Polygon (Whether any point is inside a polygon)
  • Intersects
    • Point & Point
    • Point & MultiPoint
    • MultiPoint & MultiPoint
  • Union
    • Point & Point
    • Point & MultiPoint
    • MultiPoint & MultiPoint
• Point Special Functions
  • IsBetweenLinear: check whether point lies between two points
  • DistanceTo: calculate Euclidean distance to another point
  • HaversineDistanceTo: calculate Haversine distance to another point
• Polygon Special Functions
  • IsPointInside: check whether a point is inside a polygon
  • CalculateCentroid: calculate centroid of the polygon
  • Area: get the area of the polygon

Usage

string wkt = "POINT (10 20)";
var point = Geometry.FromWkt(wkt);
var pointWkt = point.ToWkt();

string geoJson = "{\"type\": \"LineString\", \"coordinates\": [[30, 10], [10, 30], [40, 40]] }"
var lineString = Geometry.FromGeoJson(geoJson);
var lineStringGeoJson = lineString.ToGeoJson();