add first python bindings

src/Python/testing/math_pybind_test.py

@@ -0,0 +1,62 @@
+import sys
+import os
+import unittest
+import numpy as np
+
+import uLib_python
+
+def vector4f0(v, target):
+    diff = np.array(v) - np.array(target)
+    diff[3] = 0 # ignoring w
+    return np.all(np.abs(diff) < 0.001)
+
+class TestMathGeometry(unittest.TestCase):
+    def test_geometry(self):
+        Geo = uLib_python.Math.Geometry()
+        
+        Geo.SetPosition([1, 1, 1])
+        
+        pt = Geo.GetLocalPoint([2, 3, 2, 1])
+        wp = Geo.GetWorldPoint(pt)
+        
+        self.assertTrue(vector4f0(wp, [2, 3, 2, 1]))
+        
+        Geo.Scale([2, 2, 2])
+        wp = Geo.GetWorldPoint([1, 1, 1, 1])
+        self.assertTrue(vector4f0(wp, [3, 3, 3, 1]))
+        
+class TestMathContainerBox(unittest.TestCase):
+    def test_container_box_local(self):
+        Cnt = uLib_python.Math.ContainerBox()
+        Cnt.SetOrigin([-1, -1, -1])
+        Cnt.SetSize([2, 2, 2])
+        
+        size = Cnt.GetSize()
+        self.assertTrue(np.allclose(size, [2, 2, 2]))
+
+    def test_container_box_global(self):
+        Box = uLib_python.Math.ContainerBox()
+        Box.SetPosition([1, 1, 1])
+        Box.SetSize([2, 2, 2])
+        
+        pt = Box.GetLocalPoint([2, 3, 2, 1])
+        wp = Box.GetWorldPoint(pt)
+        self.assertTrue(vector4f0(wp, [2, 3, 2, 1]))
+
+class TestMathStructuredGrid(unittest.TestCase):
+    def test_structured_grid(self):
+        grid = uLib_python.Math.StructuredGrid([10, 10, 10])
+        grid.SetSpacing([1, 1, 1])
+        
+        spacing = grid.GetSpacing()
+        self.assertTrue(np.allclose(spacing, [1, 1, 1]))
+
+class TestMathAccumulator(unittest.TestCase):
+    def test_accumulator_mean(self):
+        acc = uLib_python.Math.Accumulator_Mean_f()
+        acc(10.0)
+        acc(20.0)
+        self.assertAlmostEqual(acc(), 15.0)
+
+if __name__ == '__main__':
+    unittest.main()