/**
* splits this VoxelSelection into two, in accordance with the supplied mask: For each set voxel
* in this: 1) if the mask is clear, the voxel is removed from this and added to the return value
* 2) if the mask is set, the voxel remains in this
*
* @param mask
* @param xOffsetOfMask the origin of the mask relative to the origin of this fragment
* @param yOffsetOfMask
* @param zOffsetOfMask
* @return a new VoxelSelection containing those voxels that aren't also present in the mask.
*/
public VoxelSelection splitByMask(
VoxelSelection mask, int xOffsetOfMask, int yOffsetOfMask, int zOffsetOfMask) {
VoxelSelection notOverlapped = new VoxelSelection(this);
notOverlapped.clearAll();
int xSize = mask.getxSize();
int ySize = mask.getySize();
int zSize = mask.getzSize();
for (int x = 0; x < xSize; ++x) {
for (int z = 0; z < zSize; ++z) {
for (int y = 0; y < ySize; ++y) {
if (getVoxel(x - xOffsetOfMask, y - yOffsetOfMask, z - zOffsetOfMask)) {
if (!mask.getVoxel(x, y, z)) {
notOverlapped.setVoxel(x - xOffsetOfMask, y - yOffsetOfMask, z - zOffsetOfMask);
this.clearVoxel(x - xOffsetOfMask, y - yOffsetOfMask, z - zOffsetOfMask);
}
}
}
}
}
return notOverlapped;
}
