MapWinGeoProc:SpatialOperations Intersection

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Intersection

Syntax

 MapWinGIS.Shape Intersection(MapWinGIS.Shape poly1, MapWinGIS.Shape poly2)

Summary

Returns a new polygon representing the point set intersection of polygon1 with polygon2. Since v4.7 it returns null if no intersection was found.

Parameters

poly1 The 2D polygon in need of clipping.
poly2 The 2D polygon used for clipping poly1.

Returns

Shape containing all points in poly1 that are also in poly2.

Visual Basic Net 2005 Example Implementation Code
Visual C# 2005 Example Implementation Code
Back to SpatialOperations

Sample Code C#

 MapWinGIS.Shape intersect = new MapWinGIS.ShapeClass();
 intersect.ShapeType = inputSF.ShapefileType;
 intersect = SpatialOperations.Intersection(shp1, shp2);
 if (intersect != null)
 {
     if (intersect.numPoints != 0 && intersect.IsValid)
     {
         // Shapes intersect
     }
     else
     {
         // Intersection returned an invalid shape
         return false;
     }                            
 }
 

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This page has been accessed 1,613 times. This page was last modified on 23 November 2009, at 11:59.