New ScreenPanel

script/test50.py

@@ -0,0 +1,21 @@
+class Waveform(ReadonlyRegisterBase, ReadonlyRegisterArray):
+    def doRead(self):
+        time.sleep(0.001)
+        #self.val = to_array(self.calc(), 'd')
+        return self.calc()
+
+    def getSize(self):
+        return len(self.take(-1))    #only reads if cache is None
+
+class SinusoidWaveform(Waveform):
+    def calc(self):
+        ret = []
+        x = random.random()
+        for i in range (20):
+            ret.append(math.sin(x))
+            x = x + 0.1
+        return ret        
+
+add_device(SinusoidWaveform("wf1"), True)
+
+r3 = lscan(out, (wf1,),  0.0,1.0, 4, 0.01)