BreakVoid

encloses a voided area of the TIN surface. the boundary <i>LineStrings</i> of the <i>Polygon</i> behave as breaklines in that triangles in the <i>Patches</i> attribute of the <i>TIN</i> value must be adjusted so that void boundary becomes an edge of two or more triangles. The elevation of this break void boundary takes precedence over the elevation of the original. The area bounded by TIN elements having a <i>'</i>break void', 'drape void', 'void' and 'hole' element type are still considered to be part of the TIN surface, rather than a hole bounded by an interior boundary of the surface. This distinction is significant when merging two TIN surfaces.