remove shape

Tian Gao's picture
Tian Gao
Thu, 06/28/2018 - 06:48
Forums: 
Modeling Data and Algorithms

I want to remove a face from a shell used brepBuilder and reShape, but it didn't work.
Thanks,
Tian

Andrey BETENEV's picture
Andrey BETENEV
Thu, 06/28/2018 - 06:56

Hello,

ReShape is the right tool to use, just remember that it gives you a new shape which is a copy of the original one with requested substitutions made.

Note that questions on OCCT usage (rather than development) are to be discussed on the user's forum, https://www.opencascade.com/forums

Andrey

Tian Gao's picture
Tian Gao
Thu, 06/28/2018 - 11:15

Hi, Abv
Thank you for your reply.
But I don't know how can I replace to new shape.
Thanks,
Tian

TopExp_Explorer shellExplorer(partShape, TopAbs_SHELL);
for (; shellExplorer.More(); shellExplorer.Next())
{
TopoDS_Shape shellItem = shellExplorer.Current();
for (TopExp_Explorer faceExplorer(shellExplorer.Current(), TopAbs_FACE); faceExplorer.More(); faceExplorer.Next())
{
TopoDS_Shape faceItem = faceExplorer.Current();
BRepTools_ReShape re;
re.Remove(faceItem);
re.Replace(shellItem, re.Apply(shellItem));
re.Apply(shellItem);
}
}

OR
TopoDS_Shape faceItem = faceExplorer.Current();
BRepTools_ReShape re;
re.Remove(faceItem);
TopoDS_Shape newFace = re.Apply(shellItem);

BRepTools_Substitution substitution;
TopTools_ListOfShape lists;
lists.Append(newFace);
substitution.Substitute(shellItem, lists);
substitution.Build(shellItem);
substitution.Build(partShape);