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[Processing]Add v.what.rast algorithms

* Implements Redmine feature request #6859.
* v.what.rast.points when type=point. For points input layers.
* v.what.rast.centroids when type=centroid. For polygons input layers.
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Médéric RIBREUX
Médéric RIBREUX committed Jan 31, 2016
1 parent 4825856 commit a39d25835ca34302c097e401af44c755243a082f
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v.what.rast
v.what.rast.centroids - Uploads raster values at positions of vector centroids to the table.
Vector (v.*)
ParameterVector|map|Name of vector points map for which to edit attributes|2|False
ParameterRaster|raster|Raster map to be sampled|False
ParameterTableField|column|Name of attribute column to be updated with the query result|map|0|False
ParameterString|where|WHERE conditions of SQL statement without 'where' keyword|None|True
Hardcoded|type=centroid
*ParameterBoolean|-i|Interpolate values from the nearest four cells|False|True
OutputVector|output|Sampled
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v.what.rast
v.what.rast.points - Uploads raster values at positions of vector points to the table.
Vector (v.*)
ParameterVector|map|Name of vector points map for which to edit attributes|0|False
ParameterRaster|raster|Raster map to be sampled|False
ParameterTableField|column|Name of attribute column to be updated with the query result|map|0|False
ParameterString|where|WHERE conditions of SQL statement without 'where' keyword|None|True
Hardcoded|type=point
*ParameterBoolean|-i|Interpolate values from the nearest four cells|False|True
OutputVector|output|Sampled
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# -*- coding: utf-8 -*-

"""
***************************************************************************
v_what_rast.py
---------------------
Date : January 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. *
* *
***************************************************************************
This Python module handles output for v.what.rast.* GRASS7 modules.
"""

__author__ = 'Médéric Ribreux'
__date__ = 'January 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 removeOutput(alg):
"""Remove the output fo v.what.rast"""
# We temporary remove the output 'sequence'
output = alg.getOutputFromName(u'output')
alg.removeOutputFromName(u'output')

# Launch the algorithm
alg.processCommand()

# We re-add the previous output
alg.addOutput(output)


def outputInput(alg):
"""Make output the initial point/polygon layer"""
output = alg.getOutputValue(u'output')
command = u"v.out.ogr -c type=auto -s -e input={} output=\"{}\" format=ESRI_Shapefile output_layer={}".format(
alg.exportedLayers[alg.getParameterValue(u'map')],
os.path.dirname(output),
os.path.basename(output)[:-4]
)
alg.commands.append(command)
alg.outputCommands.append(command)
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# -*- coding: utf-8 -*-

"""
***************************************************************************
v_what_rast_centroids.py
------------------------
Date : January 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__ = 'January 2016'
__copyright__ = '(C) 2016, Médéric Ribreux'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'

from v_what_rast import removeOutput, outputInput


def processCommand(alg):
removeOutput(alg)


def processOutputs(alg):
outputInput(alg)
@@ -0,0 +1,36 @@
# -*- coding: utf-8 -*-

"""
***************************************************************************
v_what_rast_points.py
---------------------
Date : January 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__ = 'January 2016'
__copyright__ = '(C) 2016, Médéric Ribreux'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'

from v_what_rast import removeOutput, outputInput


def processCommand(alg):
removeOutput(alg)


def processOutputs(alg):
outputInput(alg)

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