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IPolygon pPolygon=pGCollection as IPolygon; //·µ»ØPolygon¶ÔÏó
return pPolygon;
} catch (Exception Err) { MessageBox.Show(Err.Message,\Ìáʾ\MessageBoxButtons.OK,,MessageBoxIcon.Information);
return null;
}
}
ͬÑù¿ÉÒÔͨ¹ýIGeometryCollectionµÄAddGeometryCollection·½·¨¿ÉÒÔ½«Ò»¸öPolygonÖеÄËùÓÐ×Ó¶ÔÏóRingÌí¼Óµ½ÁíÍâÒ»¸ö¶à±ßÐÎÖУ¬ÕâÑù¾ÍʵÏÖÁ˺ϲ¢Á½¸ö¶à±ßÐζÔÏóΪһ¸ö¶à±ßÐζÔÏóµÄ¹¦ÄÜ£¬Õâ·Ç³£ÓÐÓᣠÒÔÏ´úÂëƬ¶ÎÑÝʾÈçºÎºÏ²¢Á½¸öPolygon¶ÔÏóΪһ¸öPolgyone¶ÔÏó:
///
/// ºÏ²¢Á½¸öPolygon /// /// /// ///
IGeometryCollection pGCollection1=new PolygonClass();
IGeometryCollection pGCollection2 = firstPolygon as IGeometryCollection; IGeometryCollection pGCollection3 = SecondPolygon as IGeometryCollection;
//Ìí¼ÓfirstPolygon
pGCollection1.AddGeometryCollection(pGCollection2); //Ìí¼ÓSecondPolygon pGCollection1.AddGeometryCollection(pGCollection3); //QIÖÁITopologicalOperator ITopologicalOperator pTopological = pGCollection1 as ITopologicalOperator; //Ö´ÐÐSimplify²Ù×÷ pTopological.Simplify();
IPolygon pPolygon=pGCollection1 as IPolygon;
//·µ»ØPolygon¶ÔÏó return pPolygon;
} catch (Exception Err)
{
MessageBox.Show(Err.Message,\Ìáʾ\MessageBoxButtons.OK,,MessageBoxIcon.Information); return null; }
}
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