Startup

script/scale.py

@@ -0,0 +1,40 @@
+class Image(ReadonlyRegisterBase, ReadonlyRegisterMatrix):
+    def doRead(self):
+        time.sleep(0.001)
+        self.val = to_array(self.calc(), 'd')
+        return self.val
+
+    def getWidth(self):
+        return len(self.take(-1)[0])
+
+    def getHeight(self):
+        return len(self.take(-1))
+
+class SinusoidImage(Image):
+    def calc(self):     
+        (width, height) = (200, 100)
+        ret = []
+        x = random.random();
+        base = []        
+        for i in range (width):
+            base.append( math.sin(x))
+            x = x + 0.05
+        for i in range (height):
+            noise = (random.random() - 0.5)/5.0 
+            ret.append([x+noise for x in base])
+        return ret 
+               
+    def calc(self):     
+        (width, height) = (200, 100)
+        ret = []   
+        for i in range (height):
+            ret.append([0] * width)
+        return ret  
+
+add_device(SinusoidImage("im1"), True)
+p=show_panel(im1)
+p.setAsyncUpdates(True)
+im1.polling=200
+
+add_device(RegisterMatrixSource("src1", im1), True)
+p=show_panel(src1)