mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
75 lines
2.9 KiB
Python
75 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
AutoincrementalField.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__ = '$Format:%H$'
|
|
|
|
from processing.core.GeoAlgorithm import GeoAlgorithm
|
|
from PyQt4.QtCore import *
|
|
from qgis.core import *
|
|
from processing.parameters.ParameterVector import ParameterVector
|
|
from processing.core.QGisLayers import QGisLayers
|
|
from processing.outputs.OutputVector import OutputVector
|
|
|
|
class AutoincrementalField(GeoAlgorithm):
|
|
|
|
INPUT = "INPUT"
|
|
OUTPUT = "OUTPUT"
|
|
|
|
#===========================================================================
|
|
# def getIcon(self):
|
|
# return QtGui.QIcon(os.path.dirname(__file__) + "/../images/toolbox.png")
|
|
#===========================================================================
|
|
|
|
def processAlgorithm(self, progress):
|
|
output = self.getOutputFromName(self.OUTPUT)
|
|
vlayer = QGisLayers.getObjectFromUri(self.getParameterValue(self.INPUT))
|
|
vprovider = vlayer.dataProvider()
|
|
fields = vprovider.fields()
|
|
fields.append(QgsField("AUTO", QVariant.Int))
|
|
writer = output.getVectorWriter(fields, vprovider.geometryType(), vlayer.crs() )
|
|
inFeat = QgsFeature()
|
|
outFeat = QgsFeature()
|
|
inGeom = QgsGeometry()
|
|
nElement = 0
|
|
features = QGisLayers.features(vlayer)
|
|
nFeat = len(features)
|
|
for inFeat in features:
|
|
progress.setPercentage(int((100 * nElement)/nFeat))
|
|
nElement += 1
|
|
inGeom = inFeat.geometry()
|
|
outFeat.setGeometry( inGeom )
|
|
attrs = inFeat.attributes()
|
|
attrs.append(nElement)
|
|
outFeat.setAttributes(attrs)
|
|
writer.addFeature(outFeat)
|
|
del writer
|
|
|
|
def defineCharacteristics(self):
|
|
self.name = "Add autoincremental field"
|
|
self.group = "Vector table tools"
|
|
self.addParameter(ParameterVector(self.INPUT, "Input layer", [ParameterVector.VECTOR_TYPE_ANY]))
|
|
self.addOutput(OutputVector(self.OUTPUT, "Output layer"))
|
|
|
|
|
|
|