示例#1
0
ZIntCuboidFaceArray ZIntCuboidFace::cropBy(const ZIntCuboidFace &face) const
{
  ZIntCuboidFaceArray faceArray;
  if (hasOverlap(face)) {
    if (isWithin(face)) {
      return faceArray;
    } else {
      ZIntCuboidFace subface(getAxis(), isNormalPositive());
      subface.setZ(getPlanePosition());

      subface.set(getFirstCorner(),
                  Corner(getUpperBound(0), face.getLowerBound(1) - 1));
      faceArray.appendValid(subface);

      subface.set(Corner(getLowerBound(0),
                         imax2(getLowerBound(1), face.getLowerBound(1))),
                  Corner(face.getLowerBound(0) - 1, getUpperBound(1)));
      faceArray.appendValid(subface);

      subface.set(Corner(face.getUpperBound(0) + 1,
                         imax2(getLowerBound(1), face.getLowerBound(1))),
                  getLastCorner());
      faceArray.appendValid(subface);

      subface.set(Corner(imax2(getLowerBound(0), face.getLowerBound(0)),
                         face.getUpperBound(1) + 1),
                  Corner(imin2(getUpperBound(0), face.getUpperBound(0)),
                         getUpperBound(1)));
      faceArray.appendValid(subface);
    }
#if 0
    else if (face.isWithin(*this)) {
      ZIntCuboidFace subface(getAxis(), isNormalPositive());
      secondCorner.set(getUpperBound(0), face.getLowerBound(1));
      subface.set(getFirstCorner(), secondCorner);
      faceArray.appendValid(subface);

      subface.set(Corner(getLowerBound(0), face.getLowerBound(1)),
                  face.getCorner(2));
      faceArray.appendValid(subface);

      subface.set(Corner(getLowerBound(0), face.getUpperBound(1)),
                  getLastCorner());
      faceArray.appendValid(subface);
    } else {

    }
#endif
  } else {
示例#2
0
ZIntCuboidFaceArray ZIntCuboidFace::cropBy(
    const ZIntCuboidFaceArray &faceArray) const
{
  ZIntCuboidFaceArray result;
  result.appendValid(*this);

  for (ZIntCuboidFaceArray::const_iterator iter = faceArray.begin();
       iter != faceArray.end(); ++iter) {
    const ZIntCuboidFace &face = *iter;
    result = result.cropBy(face);
    if (result.empty()) { //No need to continue on empty face
      break;
    }
  }

  return result;
}