/** removes one layer of surface voxels */
public void makeOneIteration(int nnCount) {
// m_markedCount = 0;
// long t0 = currentTimeMillis();
// if(m_surfaceMask != null){
// we have surface voxels stored on previous step
// scan only surface voxels
// processSurfaceVoxel(x,y,z);
// } else {
// no surface calculated yet. Scan the whole grid to find marked voxels
m_grid.find(VoxelClasses.INSIDE, new SurfaceVoxelsCollector(m_grid, m_surfaceMask, nnCount));
// }
// set marked voxels as OUTSIDE
m_surfaceMask.find(VoxelClasses.INSIDE, new VoxelStateSetter(m_grid, Grid.OUTSIDE));
m_surfaceMask.clear();
}
public AttributeGrid execute(AttributeGrid grid) {
printf("ErosionMask.execute()\n");
m_grid = grid;
int nx = grid.getWidth();
int ny = grid.getHeight();
int nz = grid.getDepth();
m_surfaceMask = new GridBitIntervals(nx, ny, nz);
if (m_nnCount == 0) {
// spherical erosion
m_grid.find(
VoxelClasses.INSIDE,
new CustomVoxelsCollector(
m_grid, m_surfaceMask, MaskFactory.makeBall(m_iterCount), m_voxelChecker));
// m_grid.find(VoxelClasses.INSIDE, new SphericalVoxelsCollector(m_grid, m_surfaceMask,
// m_iterCount, m_voxelChecker));
// set marked voxels as OUTSIDE
m_surfaceMask.find(VoxelClasses.INSIDE, new VoxelStateSetter(m_grid, Grid.OUTSIDE));
m_surfaceMask.clear();
} else {
for (int i = 0; i < m_iterCount; i++) {
makeOneIteration(getCount(i));
}
}
m_grid = null;
m_surfaceMask = null;
return grid;
}
