Number of points / vertices in primitive?

[hoknamahn]

Hi guys,

I need a method that returns the number of points or vertices in primitive (precisely GEO_Primitive) and also a way to get a reference to any point / vertex in a prim.

I'm stuck somewhere between those Doxy HDK pages trying to figure out this stuff

Thanks.

Edited February 4, 2009 by hoknamahn

[eloop]

Culled from one of my sops ...

	  const GEO_Primitive *prim;
	  FOR_ALL_PRIMITIVES(gdp_in,prim)
		{
		  if (prim->getPrimitiveId()==GEOPRIMPOLY)
			{
			  if (prim->getVertexCount() >= 3)

I generally just browse the include files, quicker than loading web pages.

-Drew

Hi guys,

I need a method that returns the number of points or vertices in primitive (precisely GEO_Primitive) and also a way to get a reference to any point / vertex in a prim.

I'm stuck somewhere between those Doxy HDK pages trying to figure out this stuff

Thanks.

Edited February 4, 2009 by eloop

[hoknamahn]

Culled from one of my sops ...

	  const GEO_Primitive *prim;
	  FOR_ALL_PRIMITIVES(gdp_in,prim)
		{
		  if (prim->getPrimitiveId()==GEOPRIMPOLY)
			{
			  if (prim->getVertexCount() >= 3)

I generally just browse the include files, quicker than loading web pages.

-Drew

Thanks Drew!

Looks like the best way is digging of someones code

[Ratman]

Thread resurrection!

Instead of opening one I'm just gonna bump this, but I''m trying to do the same business, except I want the total number of points, since I'm not working with vertices, and I cannot seem to be able to find a way.

I tried something like this but ended up getting this crazy value.

    FOR_ALL_GPOINTS(gdp, pt)
    {
        numpoints += pt->getNum();
    }

Been searching all over the docs, but can't seem to find anything that works.

[edward]

pt->getNum() in the above code gives you the point number (ie. $PT) so you don't want to be adding those up. It would simpler if you just added 1 in your loop to numpoints to get the total number of points that the FOR_ALL_GPOINTS() loop iterated over. However, since you're looping through ALL points, you can just do

numpoints = gdp->points().entries()

(without looping)

[Ratman]

pt->getNum() in the above code gives you the point number (ie. $PT) so you don't want to be adding those up. It would simpler if you just added 1 in your loop to numpoints to get the total number of points that the FOR_ALL_GPOINTS() loop iterated over. However, since you're looping through ALL points, you can just do

numpoints = gdp->points().entries()

(without looping)

Ack, I knew I shouldn't have been coding so late. Thanks edward!