Hi! How can I build NURB circle by HDK?
There is only primitive class
Thanks

http://odforce.net/hdk/tree/H9.1/classGU__PrimCircle.html [odforce.net]

Hey Edward.
I have already tried to use convert method from this class, but fromType and toType parms are confusing me a little. I can't find in those .h a way to make the circle nurb by those parms.

Can you show some examples?

It's similar to the SOP_Star HDK example except replace the usage of GU_PrimPoly with GU_PrimCircle.

Ok. I will try tomorrow

http://www.sidefx.com/exchange/info.php?fileid=227&versionid=227 [sidefx.com]

Hey, Andrew! What is it?

Edward, I can't understand. This is a poly primitive generated.

GU_PrimPoly *poly;
poly = GU_PrimPoly::build(gdp, divisions, GU_POLY_CLOSED);

But I need nurb circle, not a primCircle for the next sweep operation.
Even if I wright smth like this:

GU_Detail *gdpCircle;
gdpCircle = allocateGeometry();
GU_PrimCircle *primCircle = new GU_PrimCircle(gdpCircle);

it will be prim type.
I can't take primitive as a cross section into sweep. It can be only nurb or poly.

Wish
Hey, Andrew! What is it?

This is sop which uses (NURBS/POLY) circle from GU_PrimCircle as starting point
for building 3Point Arc.
Do not use it…this sop compiled for H8.0…just look at source code.

Amazing! Thanks! :arrow: