Update python code

Author: nyalldawson

python/plugins/processing/algs/qgis/IdwInterpolation.py

@@ -155,18 +155,18 @@ def processAlgorithm(self, parameters, context, feedback):
             data = QgsInterpolator.LayerData()
 
             # need to keep a reference until interpolation is complete
-            layer = QgsProcessingUtils.mapLayerFromString(v[0], context)
-            data.vectorLayer = layer
+            layer = QgsProcessingUtils.variantToSource(v[0], context)
+            data.source = layer
             layers.append(layer)
 
-            data.zCoordInterpolation = bool(v[1])
+            data.useZValue = bool(v[1])
             data.interpolationAttribute = int(v[2])
             if v[3] == '0':
-                data.mInputType = QgsInterpolator.POINTS
+                data.sourceType = QgsInterpolator.SourcePoints
             elif v[3] == '1':
-                data.mInputType = QgsInterpolator.STRUCTURE_LINES
+                data.sourceType = QgsInterpolator.SourceStructureLines
             else:
-                data.mInputType = QgsInterpolator.BREAK_LINES
+                data.sourceType = QgsInterpolator.SourceBreakLines
             layerData.append(data)
 
         interpolator = QgsIDWInterpolator(layerData)

python/plugins/processing/algs/qgis/TinInterpolation.py

@@ -175,20 +175,20 @@ def processAlgorithm(self, parameters, context, feedback):
             data = QgsInterpolator.LayerData()
 
             # need to keep a reference until interpolation is complete
-            layer = QgsProcessingUtils.mapLayerFromString(v[0], context)
-            data.vectorLayer = layer
+            layer = QgsProcessingUtils.variantToSource(v[0], context)
+            data.source = layer
             layers.append(layer)
             if not crs.isValid():
-                crs = layer.crs()
+                crs = layer.sourceCrs()
 
-            data.zCoordInterpolation = bool(v[1])
+            data.useZValue = bool(v[1])
             data.interpolationAttribute = int(v[2])
             if v[3] == '0':
-                data.mInputType = QgsInterpolator.POINTS
+                data.sourceType = QgsInterpolator.SourcePoints
             elif v[3] == '1':
-                data.mInputType = QgsInterpolator.STRUCTURE_LINES
+                data.sourceType = QgsInterpolator.SourceStructureLines
             else:
-                data.mInputType = QgsInterpolator.BREAK_LINES
+                data.sourceType = QgsInterpolator.SourceBreakLines
             layerData.append(data)
 
         if method == 0:

python/plugins/processing/algs/qgis/ui/InterpolationDataWidget.py

@@ -146,11 +146,11 @@ def value(self):
                 comboBox = self.layersTree.itemWidget(self.layersTree.topLevelItem(i), 2)
                 inputTypeName = comboBox.currentText()
                 if inputTypeName == self.tr('Points'):
-                    inputType = QgsInterpolator.POINTS
+                    inputType = QgsInterpolator.SourcePoints
                 elif inputTypeName == self.tr('Structure lines'):
-                    inputType = QgsInterpolator.STRUCTURE_LINES
+                    inputType = QgsInterpolator.SourceStructureLines
                 else:
-                    inputType = QgsInterpolator.BREAK_LINES
+                    inputType = QgsInterpolator.SourceBreakLines
 
             layers += '{},{},{:d},{:d};'.format(layer.source(),
                                                 zCoord,