Method testMapScalars

Rendering/Core/Testing/Python/TestMapperLUT.py:42–58

Test if the mapper sets the Alpha of the LUT.

(self)

class TestMapperLUT(Testing.vtkTest):
    def testMapScalars(self):
        """Test if the mapper sets the Alpha of the LUT."""
        # Create dummy data.
        p = vtkPolyData()
        pts = vtkPoints()
        pts.InsertNextPoint((0,0,0))
        sc = vtkFloatArray()
        sc.InsertNextValue(10.0)
        p.SetPoints(pts)
        p.GetPointData().SetScalars(sc)
        l = vtkLookupTable()
        m = vtkPolyDataMapper()
        m.SetInputData(p)
        m.SetScalarRange(0.0, 10.0)
        m.SetLookupTable(l)
        ret = m.MapScalars(0.5)
        self.assertEqual(l.GetAlpha(), 1.0)

    def testAboveAndBelowRange(self):
        """Test if the mapper handles values above and below the scalar range correctly."""