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84 lines
2.9 KiB
Python
84 lines
2.9 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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from PyQt4.QtCore import *
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from qgis.core import *
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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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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 defineCharacteristics(self):
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self.name = 'Reproject layer'
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self.group = 'Vector general tools'
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self.addParameter(ParameterVector(self.INPUT,
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self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_ANY]))
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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 layer')))
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def processAlgorithm(self, progress):
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layer = dataobjects.getObjectFromUri(
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self.getParameterValue(self.INPUT))
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crsId = self.getParameterValue(self.TARGET_CRS)
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targetCrs = QgsCoordinateReferenceSystem(crsId)
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writer = self.getOutputFromName(
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self.OUTPUT).getVectorWriter(layer.pendingFields().toList(),
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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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current = 0
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features = vector.features(layer)
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total = 100.0 / float(len(features))
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for f in 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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current += 1
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progress.setPercentage(int(current * total))
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del writer
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self.crs = targetCrs
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