[processing] use numeric parameter for buffer distance

alexbruy · alexbruy · commit e1ee477c40a7 · 2016-11-12T13:31:44.000+02:00
diff --git a/python/plugins/processing/algs/gdal/ogr2ogrbuffer.py b/python/plugins/processing/algs/gdal/ogr2ogrbuffer.py
@@ -27,6 +27,7 @@
 
 from processing.core.parameters import ParameterVector
 from processing.core.parameters import ParameterString
+from processing.core.parameters import ParameterNumber
 from processing.core.parameters import ParameterBoolean
 from processing.core.parameters import ParameterTableField
 from processing.core.outputs import OutputVector
@@ -59,8 +60,10 @@ def defineCharacteristics(self):
         self.addParameter(ParameterString(self.GEOMETRY,
                                           self.tr('Geometry column name ("geometry" for Shapefiles, may be different for other formats)'),
                                           'geometry', optional=False))
-        self.addParameter(ParameterString(self.DISTANCE,
-                                          self.tr('Buffer distance'), '1000', optional=False))
+        self.addParameter(ParameterNumber(self.DISTANCE,
+                                          self.tr('Buffer distance'),
+                                          0.0, 99999999.999999, 1000.0,
+                                          optional=False))
         self.addParameter(ParameterBoolean(self.DISSOLVEALL,
                                            self.tr('Dissolve all results'), False))
         self.addParameter(ParameterTableField(self.FIELD,
@@ -124,4 +127,4 @@ def getConsoleCommands(self):
         return commands
 
     def commandName(self):
-        return "ogr2ogr"
+        return 'ogr2ogr'
diff --git a/python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml b/python/plugins/processing/tests/testdata/gdal_algorithm_tests.yaml
@@ -76,7 +76,7 @@ tests:
     name: OGR buffer lines
     params:
       DISSOLVEALL: false
-      DISTANCE: '1'
+      DISTANCE: 1.0
       GEOMETRY: geometry
       INPUT_LAYER:
         name: lines.gml
@@ -91,7 +91,7 @@ tests:
     name: OGR basic polygon buffer
     params:
       DISSOLVEALL: false
-      DISTANCE: '0.5'
+      DISTANCE: 0.5
       GEOMETRY: geometry
       INPUT_LAYER:
         name: polys.gml
@@ -106,7 +106,7 @@ tests:
     name: OGR polygon buffer with dissolve
     params:
       DISSOLVEALL: true
-      DISTANCE: '0.5'
+      DISTANCE: 0.5
       GEOMETRY: geometry
       INPUT_LAYER:
         name: polys.gml
