Example for DOP Particle Data Access

[ClausKleber]

Hi,

 

could someone give me a simple code example or a link how to read the particle attributes of a DOP Network?

(especially how can i get the collision data of the particles and an object?)

 

I tried it with deriving my class from SIM_Data, but e.g. the SIM_ElectricalProperties example doesnt help me further.

 

Thanks for your help.

[ClausKleber]

Can someone give me an advice?

[ClausKleber]

I've found a way to get access of the particle collision data. Maybe someone tries something similar to do so i post my code here. I have derived my class from DOP_Node.

void DOP_ReadParticles::processObjectsSubclass(fpreal time, int,
	const SIM_ObjectArray &objects,
	DOP_Engine &engine)
{
    for (int i = 0; i < objects.entries(); i++)
    {
        SIM_Object* obj = objects.findObjectById(i);

        SIM_GeometryCopy* geometry = (SIM_GeometryCopy*)obj.getNamedSubData(SIM_GEOMETRY_DATANAME);
        if (geometry)
        {
             GU_DetailHandle  gdh =  geometry->getGeometry().getWriteableCopy();
            const GU_Detail* gdp = gdh.peekDetail();

            GA_ROAttributeRef hituv  = gdp->findPointAttribute("hituv");
            GA_ROHandleV2 h_hituv(hituv.getAttribute());
            if (h_hituv.isValid())
            {
                UT_Vector2F uv;
                for (G A_Iterator it(gdp->getPointRange()); !it.atEnd(); it.advance())
                {
                    UT_Vector2F uv(h_hituv.get(it.getOffset()));
                    // read the UV-hitposition
                    printf("%i hitUV: (%f, %f)\n", it.getIndex(), uv.x(), uv.y());
                }
            }
        }
    }
}

Edited April 15, 2014 by ClausKleber