mirror of
https://github.com/qgis/QGIS.git
synced 2025-11-04 00:04:25 -05:00
100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
extractprojection.py
|
|
---------------------
|
|
Date : September 2013
|
|
Copyright : (C) 2013 by Alexander Bruy
|
|
Email : alexander dot bruy 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. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
from builtins import str
|
|
|
|
__author__ = 'Alexander Bruy'
|
|
__date__ = 'September 2013'
|
|
__copyright__ = '(C) 2013, Alexander Bruy'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
|
|
from osgeo import gdal, osr
|
|
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.core.parameters import ParameterRaster
|
|
from processing.core.parameters import ParameterBoolean
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class ExtractProjection(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
PRJ_FILE = 'PRJ_FILE'
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.addParameter(ParameterRaster(self.INPUT, self.tr('Input file')))
|
|
self.addParameter(ParameterBoolean(self.PRJ_FILE,
|
|
self.tr('Create also .prj file'), False))
|
|
|
|
def name(self):
|
|
return 'extractprojection'
|
|
|
|
def displayName(self):
|
|
return self.tr('Extract projection')
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'projection-export.png'))
|
|
|
|
def group(self):
|
|
return self.tr('Raster projections')
|
|
|
|
def getConsoleCommands(self, parameters):
|
|
return ["extractprojection"]
|
|
|
|
def processAlgorithm(self, parameters, context, feedback):
|
|
rasterPath = self.getParameterValue(self.INPUT)
|
|
createPrj = self.getParameterValue(self.PRJ_FILE)
|
|
|
|
raster = gdal.Open(str(rasterPath))
|
|
crs = raster.GetProjection()
|
|
geotransform = raster.GetGeoTransform()
|
|
raster = None
|
|
|
|
outFileName = os.path.splitext(str(rasterPath))[0]
|
|
|
|
if crs != '' and createPrj:
|
|
tmp = osr.SpatialReference()
|
|
tmp.ImportFromWkt(crs)
|
|
tmp.MorphToESRI()
|
|
crs = tmp.ExportToWkt()
|
|
tmp = None
|
|
|
|
with open(outFileName + '.prj', 'wt') as prj:
|
|
prj.write(crs)
|
|
|
|
with open(outFileName + '.wld', 'wt') as wld:
|
|
wld.write('%0.8f\n' % geotransform[1])
|
|
wld.write('%0.8f\n' % geotransform[4])
|
|
wld.write('%0.8f\n' % geotransform[2])
|
|
wld.write('%0.8f\n' % geotransform[5])
|
|
wld.write('%0.8f\n' % (geotransform[0] +
|
|
0.5 * geotransform[1] +
|
|
0.5 * geotransform[2]))
|
|
wld.write('%0.8f\n' % (geotransform[3] +
|
|
0.5 * geotransform[4] +
|
|
0.5 * geotransform[5]))
|