Changeset 117:af3d52b9adc4 for src/mlx/fsuipc.py

Timestamp:

04/28/12 12:25:48 (12 years ago)

Author:

István Váradi <ivaradi@…>

Branch:

default

Phase:

public

Message:

Implemented the weight help tab

File:

• src/mlx/fsuipc.py (modified) (2 diffs)

src/mlx/fsuipc.py

@@ -531 +531 @@
         self._handler.requestRead([(0x3bfc, "d")], self._handleZFW, extra = callback)
 
+    def requestWeights(self, callback):
+        """Request the following weights: DOW, ZFW, payload.
+
+        These values will be passed to the callback function in this order, as
+        separate arguments."""        
+        self._handler.requestRead([(0x13fc, "d")], self._handlePayloadCount,
+                                  extra = callback)
+
     def requestTime(self, callback):
         """Request the time from the simulator."""
@@ -737 +745 @@
         """Callback for a time retrieval request."""
         callback(Simulator._getTimestamp(data))
+
+    def _handlePayloadCount(self, data, callback):
+        """Callback for the payload count retrieval request."""
+        payloadCount = data[0]
+        data = [(0x3bfc, "d"), (0x30c0, "f")]
+        for i in range(0, payloadCount):
+            data.append((0x1400 + i*48, "f"))
+        
+        self._handler.requestRead(data, self._handleWeights,
+                                  extra = callback)
+
+    def _handleWeights(self, data, callback):
+        """Callback for the weights retrieval request."""
+        zfw = data[0] * const.LBSTOKG / 256.0
+        grossWeight = data[1] * const.LBSTOKG
+        payload = sum(data[2:]) * const.LBSTOKG
+        dow = zfw - payload
+        callback(dow, payload, zfw, grossWeight)
                                                   
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