Method testClipOnNormal

Filters/General/Testing/Python/tableBasedClip.py:270–310

(self)

        rtResult = rtTester.RegressionTest(0.05)

    def testClipOnNormal(self):
        eg = vtkEnSightGoldReader()
        eg.SetCaseFileName(VTK_DATA_ROOT + "/Data/EnSight/elements.case")
        eg.Update()

        rs = vtkDataSetRegionSurfaceFilter()
        rs.SetInputConnection(eg.GetOutputPort())
        rs.Update()

        n = vtkPPolyDataNormals()
        n.SetInputConnection(rs.GetOutputPort())
        n.Update()

        pl = vtkPlane()
        pl.SetOrigin(3.5, 3.5, 0.5)
        pl.SetNormal(0, 0, 1)

        c = vtkTableBasedClipDataSet()
        c.SetInputConnection(n.GetOutputPort())
        c.SetClipFunction(pl)
        c.SetInsideOut(1)

        c.Update()
        data = c.GetOutputDataObject(0).GetBlock(0)

        normals_points = data.GetPointData().GetNormals()

        idList = vtkIdList()
        # get the point id from the cell, because the point order is not deterministic
        data.GetCellPoints(9, idList)
        [x, y, z] = normals_points.GetTuple3(idList.GetId(0))
        self.assertEqual(x, 0)
        self.assertEqual(y, 0)
        self.assertEqual(z, 1)

        # get the point id from the cell, because the point order is not deterministic
        data.GetCellPoints(61, idList)
        [x, y, z] = normals_points.GetTuple3(idList.GetId(0))
        self.assertEqual(x, 0.8944272994995117)
        self.assertEqual(y, 0.44721364974975586)
        self.assertEqual(z, 0.)

if __name__ == "__main__":
    Testing.main([(TestClip, 'test')])