Add v.vect.stats algorithm

Author: Médéric RIBREUX

python/plugins/processing/algs/grass7/description/v.vect.stats.txt

@@ -0,0 +1,10 @@
+v.vect.stats
+Count points in areas and calculate statistics.
+Vector (v.*)
+ParameterVector|points|Name of existing vector map with points|0|False
+ParameterVector|areas|Name of existing vector map with areas|2|False
+ParameterSelection|method|Method for aggregate statistics|sum;average;median;mode;minimum;min_cat;maximum;max_cat;range;stddev;variance;diversity|0
+ParameterTableField|points_column|Column name of points map to use for statistics|points|0|False
+ParameterString|count_column|Column name to upload points count (integer, created if doesn't exists)|None|False|False
+ParameterString|stats_column|Column name to upload statistics (double, created if doesn't exists)|None|False|False
+OutputVector|output|Updated

python/plugins/processing/algs/grass7/ext/v_vect_stats.py

@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    v_vect_stats.py
+    ---------------
+    Date                 : March 2016
+    Copyright            : (C) 2016 by Médéric Ribreux
+    Email                : medspx at medspx dot fr
+***************************************************************************
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+***************************************************************************
+"""
+
+__author__ = 'Médéric Ribreux'
+__date__ = 'March 2016'
+__copyright__ = '(C) 2016, Médéric Ribreux'
+
+# This will get replaced with a git SHA1 when you do a git archive
+
+__revision__ = '$Format:%H$'
+
+
+import os
+
+
+def processCommand(alg):
+    # exclude output for from_output
+    output = alg.getOutputFromName('output')
+    alg.removeOutputFromName('output')
+
+    alg.processCommand()
+    alg.addOutput(output)
+
+
+def processOutputs(alg):
+    # We need to add the vector layer to outputs:
+    out = alg.exportedLayers[alg.getParameterValue('areas')]
+    from_out = alg.getOutputValue('output')
+    command = u"v.out.ogr -s -e input={} output=\"{}\" format=ESRI_Shapefile output_layer={}".format(
+        out, os.path.dirname(from_out),
+        os.path.splitext(os.path.basename(from_out))[0]
+    )
+    alg.commands.append(command)
+    alg.outputCommands.append(command)