Method extractFace

src/Mod/TechDraw/App/DrawGeomHatch.cpp:537–568

static */ get TopoDS_Face(iface) from DVP TODO: DVP can serve these up ready to use

//! get TopoDS_Face(iface) from DVP
//! TODO: DVP can serve these up ready to use
TopoDS_Face DrawGeomHatch::extractFace(DrawViewPart* source, int iface )
{
    std::vector<TopoDS_Wire> faceWires = source->getWireForFace(iface);

    //build face(s) from geometry
    gp_Pnt gOrg(0.0, 0.0, 0.0);
    gp_Dir gDir(0.0, 0.0, 1.0);
    gp_Pln plane(gOrg, gDir);

    BRepBuilderAPI_MakeFace mkFace(plane, faceWires.front(), true);
    std::vector<TopoDS_Wire>::iterator itWire = ++faceWires.begin();            //starting with second wire
    for (; itWire != faceWires.end(); itWire++) {
        mkFace.Add(*itWire);
    }
    if (!mkFace.IsDone()) {
         return TopoDS_Face();
    }
    TopoDS_Face face = mkFace.Face();

    TopoDS_Shape temp;
    try {
        // mirror about the Y axis
        gp_Trsf mirrorTransform;
        mirrorTransform.SetMirror( gp_Ax2(gp_Pnt(0.0, 0.0, 0.0), gp_Dir(0, 1, 0)) );
        BRepBuilderAPI_Transform mkTrf(face, mirrorTransform);
        temp = mkTrf.Shape();
    }
    catch (...) {
        return TopoDS_Face();
    }
    return TopoDS::Face(temp);
}

//! get a translated label string from the context (ex TaskActiveView), the base name (ex ActiveView) and
//! the unique name within the document (ex ActiveView001), and use it to update the Label property.