[processing] fixed wrong parameter type definition in buffer algs

Author: volaya

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
@@ -58,8 +59,8 @@ 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'), None, None, 100.0, optional=False))
         self.addParameter(ParameterBoolean(self.DISSOLVEALL,
                                            self.tr('Dissolve all results'), False))
         self.addParameter(ParameterTableField(self.FIELD,

python/plugins/processing/algs/grass7/description/v.buffer.distance.txt

@@ -2,8 +2,8 @@ v.buffer
 v.buffer.distance - Creates a buffer around features of given type.
 Vector (v.*)
 ParameterVector|input|Input vector layer|-1|False
-ParameterString|distance|Buffer distance in map units|
-ParameterString|tolerance|Maximum distance between theoretical arc and polygon segments as multiple of buffer|0.01
+ParameterNumber|distance|Buffer distance in map units|None|None|100.0
+ParameterNumber|tolerance|Maximum distance between theoretical arc and polygon segments as multiple of buffer|None|None|0.01
 ParameterBoolean|-s|Make outside corners straight|False
 ParameterBoolean|-c|Do not make caps at the ends of polylines|False
 OutputVector|output|Buffer