Remove exceptions when print parameters are invalid

Fixes issue #95

diff --git a/Cura/util/sliceEngine.py b/Cura/util/sliceEngine.py
index 6425e418a2e14eb23a547a622b66d320ede5e9aa..ccf90a5143fea8dbe48bd8511c35576b9bcd3808 100644 (file)
--- a/Cura/util/sliceEngine.py
+++ b/Cura/util/sliceEngine.py
@@ -71,9 +71,12 @@ class EngineResult(object):
 
        def getFilamentWeight(self, e=0):
                #Calculates the weight of the filament in kg
-               radius = float(profile.getProfileSetting('filament_diameter')) / 2
-               volumeM3 = (self._filamentMM[e] * (math.pi * radius * radius)) / (1000*1000*1000)
-               return volumeM3 * profile.getPreferenceFloat('filament_physical_density')
+               try:
+                       radius = float(profile.getProfileSetting('filament_diameter')) / 2
+                       volumeM3 = (self._filamentMM[e] * (math.pi * radius * radius)) / (1000*1000*1000)
+                       return volumeM3 * profile.getPreferenceFloat('filament_physical_density')
+               except:
+                       return 0.0
 
        def getFilamentCost(self, e=0):
                cost_kg = profile.getPreferenceFloat('filament_cost_kg')
@@ -316,7 +319,14 @@ class Engine(object):
                        for k, v in overrides.items():
                                profile.setTempOverride(k, v)
                commandList = [self._engine_executable, '-v', '-p']
-               for k, v in self._engineSettings(extruderCount).iteritems():
+               try:
+                       engineSettings = self._engineSettings(extruderCount)
+               except:
+                       self._filamentMM = [0.0] * 4
+                       self._callback(-1.0)
+                       return
+
+               for k, v in engineSettings.iteritems():
                        commandList += ['-s', '%s=%s' % (k, str(v))]
                commandList += ['-g', '%d' % (self._serverPortNr)]
                if overrides is not None:
@@ -414,11 +424,14 @@ class Engine(object):
                        logThread.join()
                        self._result.addLog("Slicer process returned : %d" % returnCode)
                        if returnCode == 0:
-                               self._result.addReplaceTag('#P_TIME#', self._result.getPrintTime())
-                               self._result.addReplaceTag('#F_AMNT#', self._result.getFilamentAmountMeters(0))
-                               self._result.addReplaceTag('#F_WGHT#', math.floor(self._result.getFilamentWeight(0) * 1000.0))
-                               self._result.addReplaceTag('#F_COST#', self._result.getFilamentCost(0))
-                               self._result.applyReplaceTags()
+                               try:
+                                       self._result.addReplaceTag('#P_TIME#', self._result.getPrintTime())
+                                       self._result.addReplaceTag('#F_AMNT#', self._result.getFilamentAmountMeters(0))
+                                       self._result.addReplaceTag('#F_WGHT#', math.floor(self._result.getFilamentWeight(0) * 1000.0))
+                                       self._result.addReplaceTag('#F_COST#', self._result.getFilamentCost(0))
+                                       self._result.applyReplaceTags()
+                               except:
+                                       pass
                                plugin_error = pluginInfo.runPostProcessingPlugins(self._result, pluginConfig)
                                if plugin_error is not None:
                                        self._result.addLog(plugin_error)