add PauseAtHeight post-processing script for RRF

plugins/PostProcessingPlugin/scripts/PauseAtHeightRepRapFirmwareDuet.py

@@ -0,0 +1,51 @@
+from ..Script import Script
+
+class PauseAtHeightRepRapFirmwareDuet(Script):
+
+    def getSettingDataString(self):
+        return """{
+            "name": "Pause at height for RepRapFirmware DuetWifi / Duet Ethernet / Duet Maestro",
+            "key": "PauseAtHeightRepRapFirmwareDuet",
+            "metadata": {},
+            "version": 2,
+            "settings":
+            {
+                "pause_height":
+                {
+                    "label": "Pause height",
+                    "description": "At what height should the pause occur",
+                    "unit": "mm",
+                    "type": "float",
+                    "default_value": 5.0
+                }
+            }
+        }"""
+
+    def execute(self, data):
+        current_z = 0.
+        pause_z = self.getSettingValueByKey("pause_height")
+
+        layers_started = False
+        for layer_number, layer in enumerate(data):
+            lines = layer.split("\n")
+            for line in lines:
+                if ";LAYER:0" in line:
+                    layers_started = True
+                    continue
+
+                if not layers_started:
+                    continue
+
+                if self.getValue(line, 'G') == 1 or self.getValue(line, 'G') == 0:
+                    current_z = self.getValue(line, 'Z')
+                    if current_z != None:
+                        if current_z >= pause_z:
+                            prepend_gcode = ";TYPE:CUSTOM\n"
+                            prepend_gcode += "; -- Pause at height (%.2f mm) --\n" % pause_z
+                            prepend_gcode += self.putValue(M = 226) + "\n"
+                            layer = prepend_gcode + layer
+
+                            data[layer_number] = layer # Override the data of this layer with the modified data
+                            return data
+                        break
+        return data