C++ (Cpp) BBox::extendBy示例

BBox SpherePrimitive::wsBounds(Geo::Geometry::CPtr geometry) const
{
  assert(geometry != NULL);
  assert(geometry->particles() != NULL);

  if (!geometry->particles()) {
    Log::warning("SpherePrimitive has no particles. "
                 "Skipping bounds generation.");
    return BBox();
  }

  BBox wsBBox;

  AttrVisitor visitor(geometry->particles()->pointAttrs(), m_params);
  Attr<V3f>   wsCenter("P");
  Attr<float> radius("radius");

  for (AttrVisitor::const_iterator i = visitor.begin(), end = visitor.end(); 
       i != end; ++i) {
    i.update(wsCenter);
    i.update(radius);
    wsBBox.extendBy(wsCenter.as<Vector>() + radius.as<Vector>());
    wsBBox.extendBy(wsCenter.as<Vector>() - radius.as<Vector>());
  }

  return wsBBox;
}

示例#2

显示文件

文件： RasterizationPrim.cpp 项目： EEmmanuel7/pvr

BBox PointBase::wsBounds(Geo::Geometry::CPtr geometry) const
{
  assert(geometry != NULL);
  assert(geometry->particles() != NULL);

  if (!geometry->particles()) {
    Log::warning("Rasterization primitive has no particles. "
                 "Skipping bounds generation.");
    return BBox();
  }

  BBox wsBBox;
  AttrVisitor visitor(geometry->particles()->pointAttrs(), m_params);

  for (AttrVisitor::const_iterator i = visitor.begin(), end = visitor.end(); 
       i != end; ++i) {
    BBox pointBounds = pointWsBounds(i);
    wsBBox.extendBy(pointBounds);
  }

  return wsBBox;
}