Geo_primitive And Castto()

[davedjohnson]

So if I'm using this fancy macro FOR_ALL_PRIMITIVES(gdp, prim), and inside the loop I want to do something to a GEO_Face, like say, pointInFace(), what is the syntax to convert the GEO_Primitive to a GEO_Face so's I can?

Dave

[George]

Something similar to this should work:

GEO_Primitive *prim;
GEO_Face       *face;
FOR_ALL_GROUP_PRIMITIVES(this, group, prim)
{
     if (prim && (prim->getPrimitiveId() & GEOFACE))
     {
            face = (GEO_Face *)prim;
            // use face here
     } 
}