Wed, 12/13/2017 - 12:25
Forums:
Hello,
I'm trying to project a TopoDS_Shape (A) onto a TopoDS_Shape (B) given a defined direction and obtain a new TopoDS_Shape. This new shape will be the shape B with the projection of A drawn (see attached picture). How can I do that?
Thanks in advance,
Regards
Attachments:
Wed, 12/13/2017 - 13:30
Hi Adriana Costas,
Just to clarify: are you trying to project the green rectangular face to the grey structure (I suppose a wall)? Because the smaller slab of shape already looks like it's touching the wall.
In any case, have you tried BRepProj_Projection? You will need to get a wire from the structure though, and it will return the wire projections.
Dan
Wed, 12/13/2017 - 13:55
Hi Daniel,
Yes, you're right. I wanted to project the prism onto the wall in the orthogonal direction regarding the wall. No, I haven't tried BRepProj_Projection because I don't know how to use it. Is there any documentation about it?
Thanks
Wed, 12/13/2017 - 14:37
Here it is: link.
Dan
Wed, 12/13/2017 - 14:40
Ok, thanks! And how can I get the wires?With TopExp_Explorer?
Wed, 12/13/2017 - 16:25
Yes you can use TopExp_Explorer. Unfortunately you will need to iterate through all the other wires.
Or, if you can somehow pick the desired face by a graphical means, e.g. a mouse click, the method BRepTools::OuterWire can be used: link.
Dan
Wed, 12/13/2017 - 14:40
Hi Adriana Costas,
Maybe you could use HiddenLine functionality See:
HiddenLine
Best regards, Guido
Wed, 12/13/2017 - 14:59
Hi,
I think that HiddenLine functionality wouldn't work in this case because I need to have a TopoDS_Shape that consists of the base shape (the wall) with the projection of the other shape (prism) on it in order to take a view afterwards. Would that be possible using this functionality?
Regards,
Adriana