AutoCAD Map 3D 2009 Geospatial Platform Reference

Given 2 geometries a and b, a.Touches(b) is true if and only if the intersection of the interior of a and the interior of b is empty and the intersection of a and b is not empty.

Remarks:: A Point cannot touch a Point because a Point has no boundary and so the intersection of the interiors of the two geometries is not empty.
A Point can touch a non-closed Line at one of the end points of the Line.
A Point cannot touch a closed Line because all of the points in the Line are interior to it.
Illustration

e are MultiPoint geometries and f is a LineString.

.NET Syntax

virtual bool Touches(MgGeometry other);

Java Syntax

virtual boolean Touches(MgGeometry other);

PHP Syntax

virtual bool Touches(MgGeometry other);

Parameters:

other

(MgGeometry) The MgGeometry to test against this one.

Returns:: True if this geometry spatially touches the other geometry, false otherwise.

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AutoCAD Map 3D 2009 Geospatial Platform Reference

AutoCAD Map 3D Geospatial Platform API

Illustration