Frequently Asked Component Specific Questions
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Creating a polygon in C++
This code snippet shows how to create a triangle polygon on WebGMaps with C++. First a path is created, the three points of the triangle are added and with the path, a polygon is added and created on the map:
{ TPolygonItem *pol; TPath *pt; TPathItem *pi; pt = new TPath(); pi = pt->Add(); pi->Latitude = 50; pi->Longitude = 2; pi = pt->Add(); pi->Latitude = 50; pi->Longitude = 3; pi = pt->Add(); pi->Latitude = 55; pi->Longitude = 2.5; pol = WebGMaps1->Polygons->Add(false, false, false, pt, clRed, clYellow, 255, 255, 2, true, 255); WebGMaps1->CreateMapPolygon(pol->Polygon); }