Add 2 new tests, bugfixed in old tests

modules/python/test/tst_scene_render.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python
+
+
+# Python 2/3 compatibility
+from __future__ import print_function
+
+import numpy as np
+from numpy import pi, sin, cos
+
+import cv2
+
+defaultSize = 512
+
+class TestSceneRender():
+
+    def __init__(self, bgImg = None, **params):
+        self.time = 0.0
+        self.timeStep = 1.0 / 30.0
+
+        if bgImg != None:
+            self.sceneBg = bgImg.copy()
+        else:
+            self.sceneBg = np.zeros((defaultSize, defaultSize, 3), np.uint8)
+
+        self.w = self.sceneBg.shape[0]
+        self.h = self.sceneBg.shape[1]
+
+        self.initialRect = np.array([ (self.h/2, self.w/2), (self.h/2, self.w/2 + self.w/10),
+         (self.h/2 + self.h/10, self.w/2 + self.w/10), (self.h/2 + self.h/10, self.w/2)])
+        self.currentRect = self.initialRect
+
+    def setInitialRect(self, rect):
+        self.initialRect = rect
+
+    def getCurrentRect(self):
+        x0, y0 = self.currentRect[0]
+        x1, y1 = self.currentRect[2]
+        return np.array([x0, y0, x1, y1])
+
+    def getNextFrame(self):
+        self.time += self.timeStep
+        img = self.sceneBg.copy()
+
+        self.currentRect = self.initialRect + np.int( 30*cos(self.time) + 50*sin(self.time/3))
+        cv2.fillConvexPoly(img, self.currentRect, (0, 0, 255))
+
+        return img
+
+    def resetTime(self):
+        self.time = 0.0
+
+
+if __name__ == '__main__':
+
+    backGr = cv2.imread('../../../samples/data/lena.jpg')
+
+    render = TestSceneRender(backGr)
+
+    while True:
+
+        img = render.getNextFrame()
+        cv2.imshow('img', img)
+
+        ch = 0xFF & cv2.waitKey(3)
+        if  ch == 27:
+            break
+    cv2.destroyAllWindows()