Creating Custom Site ModifiersCreating Custom Site ModifiersAs the Site Modifiers tool creates a pad, grade limits, spoil pile, or texture bed site modifier, the site modifier contains geometry that is placed in the Site-DTM-Modifier class. It is also possible to create site modifiers with polygons and NURBS curves; placing them in the Site-DTM-Modifier class causes them to modify the proposed site model.
The type of site modifier created depends on the object.
● A 2D polygon acts like grade limits;
● A 3D polygon or NURBS curve acts like a pad.
To obtain uniform sloping sides on an open 3D polygon used as a swale or break line, place the 3D polygon in the Site-DTM-Modifier class, and select Create Grade Limits from Pad (Vectorworks Landmark required). See Creating Grade Limits Automatically.
