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377b181c4e
Also - simplify and add tests - remove large memory leak (persistant store of all non-project layers) - remove broken support for direct loading postgres/virtual layers by string (Python version was very broken and would never match a postgres/virtual layer)
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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ReprojectLayer.py
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---------------------
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Date : October 2012
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Copyright : (C) 2012 by Alexander Bruy
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Email : alexander dot bruy at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Alexander Bruy'
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__date__ = 'October 2012'
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__copyright__ = '(C) 2012, Alexander Bruy'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import os
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from qgis.core import QgsCoordinateReferenceSystem, QgsCoordinateTransform, QgsFeature
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.core.parameters import ParameterVector
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from processing.core.parameters import ParameterCrs
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from processing.core.outputs import OutputVector
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from processing.tools import dataobjects, vector
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from qgis.PyQt.QtGui import QIcon
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class ReprojectLayer(GeoAlgorithm):
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INPUT = 'INPUT'
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TARGET_CRS = 'TARGET_CRS'
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OUTPUT = 'OUTPUT'
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def icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'warp.png'))
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def tags(self):
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return self.tr('transform,reproject,crs,srs,warp').split(',')
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def group(self):
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return self.tr('Vector general tools')
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def name(self):
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return 'reprojectlayer'
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def displayName(self):
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return self.tr('Reproject layer')
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def defineCharacteristics(self):
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self.addParameter(ParameterVector(self.INPUT,
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self.tr('Input layer')))
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self.addParameter(ParameterCrs(self.TARGET_CRS,
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self.tr('Target CRS'), 'EPSG:4326'))
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self.addOutput(OutputVector(self.OUTPUT, self.tr('Reprojected')))
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def processAlgorithm(self, feedback):
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layer = dataobjects.getLayerFromString(self.getParameterValue(self.INPUT))
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crsId = self.getParameterValue(self.TARGET_CRS)
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targetCrs = QgsCoordinateReferenceSystem()
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targetCrs.createFromUserInput(crsId)
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writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
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layer.fields().toList(), layer.wkbType(), targetCrs)
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layerCrs = layer.crs()
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crsTransform = QgsCoordinateTransform(layerCrs, targetCrs)
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outFeat = QgsFeature()
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features = vector.features(layer)
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total = 100.0 / len(features)
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for current, f in enumerate(features):
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geom = f.geometry()
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geom.transform(crsTransform)
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outFeat.setGeometry(geom)
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outFeat.setAttributes(f.attributes())
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writer.addFeature(outFeat)
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feedback.setProgress(int(current * total))
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del writer
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self.crs = targetCrs
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