add 3d masking test

testdata/integration/regression/mask_test_3d/create_3d_data.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+import numpy as np
+
+from flannel import io as fio
+
+image_shape = (140, 100, 60)
+block_shape = (50, 40, 40)
+block1_fixed_offset = (10, 10, 10)
+block2_fixed_offset = (80, 10, 10)
+block1_moved_offset = (10, 50, 10)
+block2_moved_offset = (80, 50, 10)
+mask_shape = (70, 100, 60)
+mask_offset = (0, 0, 0)
+
+def slice_from_offsets(shape, offset):
+    return tuple(slice(x, x+y) for x, y in zip(offset, shape))
+
+
+def main():
+    """Create 3D masking test data
+    """
+
+    print("Saving fixed.image")
+    fixed = np.zeros(image_shape)
+    fixed[slice_from_offsets(block_shape, block1_fixed_offset)] = 1
+    fixed[slice_from_offsets(block_shape, block2_fixed_offset)] = 1
+    fio.save_image(fixed, "fixed.image")
+
+    print("Saving moved.image")
+    moved = np.zeros(image_shape)
+    moved[slice_from_offsets(block_shape, block1_moved_offset)] = 1
+    moved[slice_from_offsets(block_shape, block2_moved_offset)] = 1
+    fio.save_image(moved, "moved.image")
+
+    print("Saving mask.mask")
+    mask = np.zeros(image_shape)
+    mask[slice_from_offsets(mask_shape, mask_offset)] = 1
+    fio.save_mask(mask, "mask.mask")
+
+if __name__ == "__main__":
+    main()

testdata/integration/regression/mask_test_3d/nomask.conf

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+fixed=fixed.image
+moved=moved.image
+nodespacing=10
+registered=registered_nomask.xdmf
+map=map_nomask.xdmf
+save_intermediate_frames=true

testdata/integration/regression/mask_test_3d/withmask.conf

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+fixed=fixed.image
+moved=moved.image
+mask=mask.mask
+nodespacing=10
+registered=registered_withmask.xdmf
+map=map_withmask.xdmf
+save_intermediate_frames=true