mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
117 lines
5.2 KiB
Python
117 lines
5.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
translate.py
|
|
---------------------
|
|
Date : August 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__ = 'August 2012'
|
|
__copyright__ = '(C) 2012, Victor Olaya'
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
from PyQt4 import QtGui
|
|
from qgis.core import *
|
|
from processing.core.GeoAlgorithm import GeoAlgorithm
|
|
from processing.parameters.ParameterString import ParameterString
|
|
from processing.parameters.ParameterRaster import ParameterRaster
|
|
from processing.parameters.ParameterNumber import ParameterNumber
|
|
from processing.parameters.ParameterBoolean import ParameterBoolean
|
|
from processing.parameters.ParameterSelection import ParameterSelection
|
|
from processing.parameters.ParameterExtent import ParameterExtent
|
|
from processing.parameters.ParameterCrs import ParameterCrs
|
|
from processing.outputs.OutputRaster import OutputRaster
|
|
|
|
from processing.gdal.GdalUtils import GdalUtils
|
|
|
|
class translate(GeoAlgorithm):
|
|
|
|
INPUT = "INPUT"
|
|
OUTPUT = "OUTPUT"
|
|
OUTSIZE = "OUTSIZE"
|
|
OUTSIZE_PERC = "OUTSIZE_PERC"
|
|
NO_DATA = "NO_DATA"
|
|
EXPAND = "EXPAND"
|
|
PROJWIN = "PROJWIN"
|
|
SRS = "SRS"
|
|
SDS = "SDS"
|
|
EXTRA = "EXTRA"
|
|
|
|
def getIcon(self):
|
|
filepath = os.path.dirname(__file__) + "/icons/translate.png"
|
|
return QtGui.QIcon(filepath)
|
|
|
|
def defineCharacteristics(self):
|
|
self.name = "Translate (convert format)"
|
|
self.group = "[GDAL] Conversion"
|
|
self.addParameter(ParameterRaster(translate.INPUT, "Input layer", False))
|
|
self.addParameter(ParameterNumber(translate.OUTSIZE, "Set the size of the output file (In pixels or %)", 1, None, 100))
|
|
self.addParameter(ParameterBoolean(translate.OUTSIZE_PERC, "Output size is a percentage of input size", True))
|
|
self.addParameter(ParameterString(translate.NO_DATA, "Nodata value, leave as none to take the nodata value from input", "none"))
|
|
self.addParameter(ParameterSelection(translate.EXPAND, "Expand", ["none","gray","rgb","rgba"]))
|
|
self.addParameter(ParameterCrs(translate.SRS, "Override the projection for the output file", None))
|
|
self.addParameter(ParameterExtent(translate.PROJWIN, "Subset based on georeferenced coordinates"))
|
|
self.addParameter(ParameterBoolean(translate.SDS, "Copy all subdatasets of this file to individual output files", False))
|
|
self.addParameter(ParameterString(translate.EXTRA, "Additional creation parameters", ""))
|
|
self.addOutput(OutputRaster(translate.OUTPUT, "Output layer"))
|
|
|
|
def processAlgorithm(self, progress):
|
|
out = self.getOutputValue(translate.OUTPUT)
|
|
outsize = str(self.getParameterValue(translate.OUTSIZE))
|
|
outsizePerc = str(self.getParameterValue(translate.OUTSIZE_PERC))
|
|
noData = str(self.getParameterValue(translate.NO_DATA))
|
|
expand = str(self.getParameterFromName(translate.EXPAND).options[self.getParameterValue(translate.EXPAND)])
|
|
projwin = str(self.getParameterValue(translate.PROJWIN))
|
|
crsId = self.getParameterValue(translate.SRS)
|
|
sds = self.getParameterValue(translate.SDS)
|
|
extra = str(self.getParameterValue(translate.EXTRA))
|
|
|
|
arguments = []
|
|
arguments.append("-of")
|
|
arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
|
|
if outsizePerc == "True":
|
|
arguments.append("-outsize")
|
|
arguments.append(outsize + "%")
|
|
arguments.append(outsize + "%")
|
|
else:
|
|
arguments.append("-outsize")
|
|
arguments.append(outsize)
|
|
arguments.append(outsize)
|
|
arguments.append("-a_nodata")
|
|
arguments.append(noData)
|
|
if expand != "none":
|
|
arguments.append("-expand")
|
|
arguments.append(expand)
|
|
regionCoords = projwin.split(",")
|
|
arguments.append("-projwin")
|
|
arguments.append(regionCoords[0])
|
|
arguments.append(regionCoords[3])
|
|
arguments.append(regionCoords[1])
|
|
arguments.append(regionCoords[2])
|
|
if crsId is not None:
|
|
arguments.append("-a_srs")
|
|
arguments.append(str(crsId))
|
|
self.crs = QgsCoordinateReferenceSystem(crsId)
|
|
if sds:
|
|
arguments.append("-sds")
|
|
if len(extra) > 0:
|
|
arguments.append(extra)
|
|
arguments.append(self.getParameterValue(translate.INPUT))
|
|
arguments.append(out)
|
|
|
|
GdalUtils.runGdal(["gdal_translate", GdalUtils.escapeAndJoin(arguments)], progress)
|