Add v.rast.stats algorithm

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

@@ -0,0 +1,10 @@
+v.rast.stats
+Calculates univariate statistics from a raster map based on vector polygons and uploads statistics to new attribute columns.
+Vector (v.*)
+ParameterVector|map|Name of vector polygon map|-1|False
+ParameterRaster|raster|Name of raster map to calculate statistics from|False
+ParameterString|column_prefix|Column prefix for new attribute columns|None|False|False
+ParameterString|method|The methods to use (comma separated)|number,minimum,maximum,range,average,stddev,variance,coeff_var,sum,first_quartile,median,third_quartile,percentile|False|True
+ParameterNumber|percentile|Percentile to calculate|0|100|90|True
+Hardcoded|-c
+OutputVector|output|Rast stats

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

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+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    v_rast_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('map')]
+    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)