建立空间参考 ISpatialReference

转自原文建立空间参考 ISpatialReference

 

ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
ISpatialReference spatialReference = spatialReferenceFactory.CreateProjectedCoordinateSystem((int)esriSRProjCSType.esriSRProjCS_World_Mercator);//esriSRProjCS_NAD1983UTM_20N);
ISpatialReferenceResolution spatialReferenceResolution = (ISpatialReferenceResolution)spatialReference;
spatialReferenceResolution.ConstructFromHorizon();
ISpatialReferenceTolerance spatialReferenceTolerance = (ISpatialReferenceTolerance)spatialReference;
spatialReferenceTolerance.SetDefaultXYTolerance();