Face* Interface::getFaceNear(QPointF p)
{
HalfEdge *min = getArestaNear(p);
if(isExterna(min->getFace()))
min = min->getTwin();
if(dentroFace(min,p))
return min->getFace();
if(isExterna(min->getTwin()->getFace()) || dentroFace(min->getTwin(),p))
return min->getTwin()->getFace();
return NULL;
}
void Render::renderizaFaceExterna(QPen *pen)
{
bool passa;
QVector<HalfEdge*> *list = &(interface.componentesFaceExterna);
QVector<HalfEdge*> temp;
HalfEdge *val;
HalfEdge::iterator it, jt;
QImage buffExt(buffer->width(), buffer->height(), QImage::Format_ARGB32_Premultiplied);
QPainter p;
p.begin(&buffExt);
p.setCompositionMode(QPainter::CompositionMode_Source);
p.fillRect(buffExt.rect(), pen->color());
p.end();
for(int i = 0; i < list->size(); ++i)
{
val = list->at(i);
passa = false;
for(it = val->v_begin(); it != val->v_end() ; ++it)
{
if(dentroFace(val->getTwin(),it->getDestino()->getPoint()))
{
passa = true;
break;
}
}
if( passa || componenteFaceUnica(&it))
renderizaComponente(val->getTwin(),&buffExt,QPen(Qt::transparent));
else
temp.push_back(val->getTwin());
}
for(int i = 0; i < temp.size(); ++i)
renderizaFace(temp[i],&buffExt,*pen);
p.begin(frontBuffer);
p.setCompositionMode(QPainter::CompositionMode_SourceOver);
p.drawImage(0,0, buffExt);
p.end();
}
