#include "TxsVertex.h"
#include "TxsFace.h"
using namespace TXS;

void TxsVertex::calcAvgNormal() {
	this->avgNormal.Set(0,0,0);
	list<TxsFace*>::iterator fit;
	for(fit = this->incidentFaces.begin(); fit != this->incidentFaces.end(); ++fit) {
		TxsFace* f = *fit;
		this->avgNormal += f->getNormal();
	}

	BOOL normOk = this->avgNormal.Normalize();

	if(!normOk) {
		__ERROR__("could not normalize avg normal: " << this->avgNormal);
	}
}