[Sidefx-houdini-list] Closure

Sebastian H. Schmidt sebastian.h.schmidt at googlemail.com
Sat Jan 23 20:34:41 EST 2010

Hi Dave,

do you want the edges or do you want  basicaly the result of a divide sop
does when you tick remove shared edges ?
if you need the divide-sop thingy you can do this here:

GU_Detail *myFillGDP = new GU_Detail(mygdp)
GQ_Detail     *myFillGQP = new GQ_Detail(myFillGDP);
you might have to reverse the normals with
but than you can merge it back together and do a fuse with a function called

if you realy need the edges, ... sorry havent used that yet ;)


On Sun, Jan 24, 2010 at 12:55 AM, David Johnson <daveinengland at gmail.com>wrote:

> Can anyone explain how to use the GEO_Closure class?
> I'm trying to find an ordered list of the edges of the polygons that are at
> the border of some geometry. Like if you take a polygon sphere and delete
> one of the polygons, I'd like to be able to find the edges of the hole that
> is left. How can I do this? I'm trying to do it in the hdk, using 10.0.430
> Would the GEO_Closure be able to help with this? Or can anyone else explain
> how to do this in an efficient manner?
> I also sent this to support, but just in case someone is trolling the
> mailing list this weekend and has an idea, I'd appreciate some info.
> Dave
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