Added Vispy test app

inclement · inclement · commit 41af1ad9ac4f · 2015-10-04T16:35:36.000+01:00
diff --git a/tests/vispy_testapp/main.py b/tests/vispy_testapp/main.py
@@ -0,0 +1,79 @@
+"""
+Demonstration of Tube
+"""
+
+print('testing!')
+import ctypes
+print('imported ctypes')
+print(ctypes.__dict__)
+print('dict done')
+import ctypes.util
+print('imported util')
+print(ctypes.util.find_library)
+
+import sys
+from vispy import scene
+from vispy.geometry.torusknot import TorusKnot
+
+from colorsys import hsv_to_rgb
+import numpy as np
+
+canvas = scene.SceneCanvas(keys='interactive', bgcolor='white')
+canvas.view = canvas.central_widget.add_view()
+
+points1 = TorusKnot(5, 3).first_component[:-1]
+points1[:, 0] -= 20.
+points1[:, 2] -= 15.
+
+points2 = points1.copy()
+points2[:, 2] += 30.
+
+points3 = points1.copy()
+points3[:, 0] += 41.
+points3[:, 2] += 30
+
+points4 = points1.copy()
+points4[:, 0] += 41.
+
+colors = np.linspace(0, 1, len(points1))
+colors = np.array([hsv_to_rgb(c, 1, 1) for c in colors])
+
+vertex_colors = np.random.random(8 * len(points1))
+vertex_colors = np.array([hsv_to_rgb(c, 1, 1) for c in vertex_colors])
+
+l1 = scene.visuals.Tube(points1,
+                        shading='flat',
+                        color=colors,  # this is overridden by
+                                       # the vertex_colors argument
+                        vertex_colors=vertex_colors,
+                        tube_points=8)
+
+l2 = scene.visuals.Tube(points2,
+                        color=['red', 'green', 'blue'],
+                        shading='smooth',
+                        tube_points=8)
+
+l3 = scene.visuals.Tube(points3,
+                        color=colors,
+                        shading='flat',
+                        tube_points=8,
+                        closed=True)
+
+l4 = scene.visuals.Tube(points4,
+                        color=colors,
+                        shading='flat',
+                        tube_points=8,
+                        mode='lines')
+
+canvas.view.add(l1)
+canvas.view.add(l2)
+canvas.view.add(l3)
+canvas.view.add(l4)
+canvas.view.camera = scene.TurntableCamera()
+# tube does not expose its limits yet
+canvas.view.camera.set_range((-20, 20), (-20, 20), (-20, 20))
+canvas.show()
+
+if __name__ == '__main__':
+    if sys.flags.interactive != 1:
+        canvas.app.run()
