QGIS/python/plugins/processing/algs/gdal/ogr2ogrclipextent.py
2015-09-22 23:03:12 +01:00

97 lines
3.6 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
ogr2ogrclipextent.py
---------------------
Date : November 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* 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__ = 'Victor Olaya'
__date__ = 'November 2012'
__copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from processing.core.parameters import ParameterVector
from processing.core.parameters import ParameterString
from processing.core.parameters import ParameterExtent
from processing.core.outputs import OutputVector
from processing.tools.system import isWindows
from processing.algs.gdal.OgrAlgorithm import OgrAlgorithm
from processing.algs.gdal.GdalUtils import GdalUtils
class Ogr2OgrClipExtent(OgrAlgorithm):
OUTPUT_LAYER = 'OUTPUT_LAYER'
INPUT_LAYER = 'INPUT_LAYER'
CLIP_EXTENT = 'CLIP_EXTENT'
OPTIONS = 'OPTIONS'
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('Clip vectors by extent')
self.group, self.i18n_group = self.trAlgorithm('[OGR] Geoprocessing')
self.addParameter(ParameterVector(self.INPUT_LAYER,
self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_ANY], False))
self.addParameter(ParameterExtent(self.CLIP_EXTENT,
self.tr('Clip extent')))
self.addParameter(ParameterString(self.OPTIONS,
self.tr('Additional creation options'), '', optional=True))
self.addOutput(OutputVector(self.OUTPUT_LAYER, self.tr('Clipped (extent)')))
def getConsoleCommands(self):
inLayer = self.getParameterValue(self.INPUT_LAYER)
ogrLayer = self.ogrConnectionString(inLayer)[1:-1]
clipExtent = self.getParameterValue(self.CLIP_EXTENT)
output = self.getOutputFromName(self.OUTPUT_LAYER)
outFile = output.value
output = self.ogrConnectionString(outFile)
options = unicode(self.getParameterValue(self.OPTIONS))
arguments = []
regionCoords = clipExtent.split(',')
arguments.append('-spat')
arguments.append(regionCoords[0])
arguments.append(regionCoords[2])
arguments.append(regionCoords[1])
arguments.append(regionCoords[3])
arguments.append('-clipsrc spat_extent')
if len(options) > 0:
arguments.append(options)
arguments.append(output)
arguments.append(ogrLayer)
arguments.append(self.ogrLayerName(inLayer))
commands = []
if isWindows():
commands = ['cmd.exe', '/C ', 'ogr2ogr.exe',
GdalUtils.escapeAndJoin(arguments)]
else:
commands = ['ogr2ogr', GdalUtils.escapeAndJoin(arguments)]
return commands
def commandName(self):
return "ogr2ogr"