how to Output arbitrarily attribute to custom file

[Arthur~Chiu]

i write a custom rop ,i want to output arbitrarily attribute to my custom file. such as float .or vector point attribute

someone can help me ,thansks

[edward]

Here's a good reference page: http://www.sidefx.com/docs/hdk13.0/hdk_dataflow_sop.html

 

Untested.

bool foo(OP_Context &context, const char *sop_path, const char *vector_attrib_name, UT_Vector3Array &data)
{
    SOP_Node *sop = CAST_SOPNODE(OPgetDirector()->findNode(sop_path));
    if (!sop)
        return false; // ERROR! not a valid sop node path
   
    GU_DetailHandle gd_handle = sop->getCookedGeoHandle(context);
    if (gd_handle.isNull())
        return false; // ERROR! failed to cook
 
    GU_DetailHandleAutoReadLock gd_lock(gd_handle);
    const GU_Detail* gdp = gd_lock.getGdp();
 
    GA_ROAttributeRef attrib = gdp->findPointAttribute(vector_attrib_name);
    if (attrib.isInvalid())
       return false; // ERROR! wrong attrib name
 
    if (!gdp->getPointAttributeAsArray(attrib.get(), gdp->getPointRange(), data))
        return false; // ERROR! wrong type?
 
    return true;
}

[Arthur~Chiu]

can output all attribute ？

[edward]

http://forums.odforce.net/topic/19577-get-all-the-available-point-attributes/