Merge pull request #1096 from nschloe/poly-fix

poly fix

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = meshio
-version = 4.4.2
+version = 4.4.3
 author = Nico Schlömer et al.
 author_email = [email protected]
 description = I/O for many mesh formats

src/meshio/_helpers.py

@@ -127,21 +127,7 @@ def write(filename, mesh: Mesh, file_format: Optional[str] = None, **kwargs):
 
     # check cells for sanity
     for key, value in mesh.cells:
-        if key[:7] == "polygon":
-            try:
-                n = int(key[7:])
-            except ValueError:
-                msg = (
-                    f'Key "{key}" malformed. '
-                    'Should be "polygonN", where N is the number of points per polygon.'
-                )
-                raise ValueError(msg)
-            if value.shape[1] != n:
-                raise WriteError(
-                    f"Polygon data array (shape {value.shape}) "
-                    f'doesn\'t match the key "{key}"'
-                )
-        elif key in num_nodes_per_cell:
+        if key in num_nodes_per_cell:
             if value.shape[1] != num_nodes_per_cell[key]:
                 raise WriteError(
                     f"Unexpected cells array shape {value.shape} for {key} cells."

tests/legacy_writer.py

@@ -182,10 +182,7 @@ def _generate_vtk_mesh(points, cells):
     len_array = 0
     for meshio_type, data in cells.items():
         numcells, num_local_nodes = data.shape
-        if meshio_type[:7] == "polygon":
-            vtk_type = meshio_to_vtk_type[meshio_type[:7]]
-        else:
-            vtk_type = meshio_to_vtk_type[meshio_type]
+        vtk_type = meshio_to_vtk_type[meshio_type]
         # add cell types
         cell_types.append(np.empty(numcells, dtype=np.ubyte))
         cell_types[-1].fill(vtk_type)