[Processing] Allow user defined projections in Processing.

qgis · Jan 22, 2015 · b835f40 · b835f40
1 parent 8fc6dd8
commit b835f40
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Showing 5 changed files with 22 additions and 12 deletions.
diff --git a/python/plugins/processing/algs/gdal/warp.py b/python/plugins/processing/algs/gdal/warp.py
@@ -79,7 +79,6 @@ def processAlgorithm(self, progress):
         arguments.append(str(self.getParameterValue(self.SOURCE_SRS)))
         arguments.append('-t_srs')
         crsId = self.getParameterValue(self.DEST_SRS)
-        self.crs = QgsCoordinateReferenceSystem(crsId)
         arguments.append(str(crsId))
         arguments.append('-r')
         arguments.append(

diff --git a/python/plugins/processing/algs/qgis/PointsLayerFromTable.py b/python/plugins/processing/algs/qgis/PointsLayerFromTable.py
@@ -57,7 +57,8 @@ def processAlgorithm(self, progress):
                 self.getParameterValue(self.YFIELD))
 
         crsId = self.getParameterValue(self.TARGET_CRS)
-        targetCrs = QgsCoordinateReferenceSystem(crsId)
+        targetCrs = QgsCoordinateReferenceSystem()
+        targetCrs.createFromUserInput(crsId)
         self.crs = targetCrs
 
         outFeat = QgsFeature()

diff --git a/python/plugins/processing/algs/qgis/ReprojectLayer.py b/python/plugins/processing/algs/qgis/ReprojectLayer.py
@@ -55,7 +55,8 @@ def processAlgorithm(self, progress):
         layer = dataobjects.getObjectFromUri(
                 self.getParameterValue(self.INPUT))
         crsId = self.getParameterValue(self.TARGET_CRS)
-        targetCrs = QgsCoordinateReferenceSystem(crsId)
+        targetCrs = QgsCoordinateReferenceSystem()
+        targetCrs.createFromUserInput(crsId)
 
         writer = self.getOutputFromName(
                 self.OUTPUT).getVectorWriter(layer.pendingFields().toList(),

diff --git a/python/plugins/processing/core/parameters.py b/python/plugins/processing/core/parameters.py
@@ -117,7 +117,10 @@ def setValue(self, value):
 class ParameterCrs(Parameter):
 
     def __init__(self, name='', description='', default='EPSG:4326'):
-        '''The value is the auth id of the CRS'''
+        '''The value is a string that uniquely identifies the
+        coordinate reference system. Typically it is the auth id of the CRS 
+        (if the authority is EPSG) or proj4 string of the CRS (in case 
+        of other authorities or user defined projections).'''
         Parameter.__init__(self, name, description)
         self.value = None
         self.default = default

diff --git a/python/plugins/processing/gui/CrsSelectionPanel.py b/python/plugins/processing/gui/CrsSelectionPanel.py
@@ -41,23 +41,29 @@ def __init__(self, default):
         self.leText.setEnabled(False)
 
         self.btnSelect.clicked.connect(self.browseCRS)
-        self.authId = QgsCoordinateReferenceSystem(default).authid()
+        self.crs = QgsCoordinateReferenceSystem(default).authid()
         self.updateText()
 
     def setAuthId(self, authid):
-        self.authId = authid
+        self.crs = authid
         self.updateText()
 
     def browseCRS(self):
         selector = QgsGenericProjectionSelector()
-        selector.setSelectedAuthId(self.authId)
+        selector.setSelectedAuthId(self.crs)
         if selector.exec_():
-            self.authId = selector.selectedAuthId()
+            authId = selector.selectedAuthId()
+            if authId.upper().startswith("EPSG:"):
+                self.crs = authId
+            else:
+                proj = QgsCoordinateReferenceSystem()
+                proj.createFromSrsId(selector.selectedCrsId())
+                self.crs = proj.toProj4()
             self.updateText()
 
     def updateText(self):
-        if self.authId is not None:
-            self.leText.setText(self.authId)
-
+        if self.crs is not None:
+            self.leText.setText(self.crs)
+                
     def getValue(self):
-        return self.authId
+        return self.crs