protected void createMipMap(AttributeGrid grid) {
grid.getGridBounds(gbounds);
xgmin = gbounds[0];
ygmin = gbounds[2];
zgmin = gbounds[4];
scaleFactor = grid.getWidth() / (gbounds[1] - gbounds[0]);
int nx = grid.getWidth();
int ny = grid.getHeight();
int nz = grid.getDepth();
if (DEBUG) {
printf("createMipMap()\n grid [%d x %d x %d]\n", nx, ny, nz);
}
Vector vgrids = new Vector();
vgrids.add(grid);
int levelCount = 1;
while (nx > 1 || ny > 1 || nz > 1) {
grid = makeGridHalfSize(grid, nx, ny, nz, m_scalingType);
vgrids.add(grid);
nx = (nx + 1) / 2;
ny = (ny + 1) / 2;
nz = (nz + 1) / 2;
if (DEBUG) {
printf(" mipmap level [%d x %d x %d]\n", nx, ny, nz);
}
levelCount++;
}
printf(" levelCount: %d\n", levelCount);
m_grids = (AttributeGrid[]) vgrids.toArray(new AttributeGrid[levelCount]);
}
