How to use the pyansys._binary_reader.cells_with_all_nodes function in pyansys

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github akaszynski / pyansys / pyansys / rst.py View on Github external
if isinstance(node_components, str):
            node_components = [node_components]

        mask = np.zeros(grid.n_points, np.bool)
        for component in node_components:
            component = component.upper()
            if component not in grid.point_arrays:
                raise KeyError('Result file does not contain node ' +
                               'component "%s"' % component)

            mask += grid.point_arrays[component].view(np.bool)

        # need to extract the mesh
        cells, offset = vtk_cell_info(grid)
        if sel_type_all:
            cell_mask = cells_with_all_nodes(offset, cells, grid.celltypes,
                                             mask.view(np.uint8))
        else:
            cell_mask = cells_with_any_nodes(offset, cells, grid.celltypes,
                                             mask.view(np.uint8))

        if not cell_mask.any():
            raise RuntimeError('Empty component')
        reduced_grid = grid.extract_cells(cell_mask)

        if not reduced_grid.n_cells:
            raise RuntimeError('Empty mesh due to component selection\n' +
                               'Try "sel_type_all=False"')

        ind = reduced_grid.point_arrays['vtkOriginalPointIds']
        if not ind.any():
            raise RuntimeError('Invalid selection.\n' +