fixed errors leading to test_ffdcad.py fail

Author: Andrea Mola

pygem/cad/cad_deformation.py

@@ -357,7 +357,7 @@ def __call__(self, obj, dst=None):
             if dst is None:
                 raise ValueError(
                     'Source file is provided, but no destination specified')
-            shape = self._read_shape(obj)
+            shape = self.read_shape(obj)
         elif isinstance(obj, TopoDS_Shape):
             shape = obj
         # Maybe do we need to handle also Compound?
@@ -474,6 +474,6 @@ def __call__(self, obj, dst=None):
 
         if isinstance(dst, str):  # if a input filename is passed
             # save the shape exactly to the filename, aka `dst`
-            self._write_shape(dst, compound)
+            self.write_shape(dst, compound)
         else:
             return compound

tests/test_ffdcad.py

@@ -11,7 +11,7 @@
 class TestFFDCAD(TestCase):
 
     def test_ffd_iges_pipe_mod_through_files(self):
-        ffd = FFD()
+        ffd = FFD(None,30,30,30,1e-4)
         ffd.read_parameters(
             filename='tests/test_datasets/parameters_test_ffd_iges.prm')
         ffd('tests/test_datasets/test_pipe.iges', 'test_pipe_result.iges')
@@ -27,7 +27,7 @@ def test_ffd_iges_pipe_mod_through_files(self):
     def test_ffd_iges_pipe_mod_through_topods_shape(self):
         filename = 'tests/test_datasets/test_pipe_hollow.iges'
         orig_shape = CADDeformation.read_shape(filename)
-        ffd = FFD()
+        ffd = FFD(None,30,30,30,1e-4)
         ffd.read_parameters(
             filename='tests/test_datasets/parameters_test_ffd_iges.prm')
         mod_shape = ffd(orig_shape)