mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-06 00:05:02 -05:00
89 lines
3.2 KiB
Python
89 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
MultipartToSingleparts.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 qgis.PyQt.QtGui import QIcon
|
|
|
|
from qgis.core import QgsWkbTypes, QgsProcessingUtils
|
|
|
|
from processing.algs.qgis import QgisAlgorithm
|
|
from processing.core.parameters import ParameterVector
|
|
from processing.core.outputs import OutputVector
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class MultipartToSingleparts(QgisAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'ftools', 'multi_to_single.png'))
|
|
|
|
def group(self):
|
|
return self.tr('Vector geometry tools')
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.addParameter(ParameterVector(self.INPUT, self.tr('Input layer')))
|
|
self.addOutput(OutputVector(self.OUTPUT, self.tr('Single parts')))
|
|
|
|
def name(self):
|
|
return 'multiparttosingleparts'
|
|
|
|
def displayName(self):
|
|
return self.tr('Multipart to singleparts')
|
|
|
|
def processAlgorithm(self, parameters, context, feedback):
|
|
layer = QgsProcessingUtils.mapLayerFromString(self.getParameterValue(self.INPUT), context)
|
|
geomType = QgsWkbTypes.singleType(layer.wkbType())
|
|
|
|
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(layer.fields(), geomType, layer.crs(),
|
|
context)
|
|
|
|
features = QgsProcessingUtils.getFeatures(layer, context)
|
|
total = 100.0 / QgsProcessingUtils.featureCount(layer, context)
|
|
for current, f in enumerate(features):
|
|
input_geometry = f.geometry()
|
|
if input_geometry:
|
|
if input_geometry.isMultipart():
|
|
for g in input_geometry.asGeometryCollection():
|
|
output_feature = f
|
|
output_feature.setGeometry(g)
|
|
writer.addFeature(output_feature)
|
|
else:
|
|
writer.addFeature(f)
|
|
else:
|
|
#input feature with null geometry
|
|
writer.addFeature(f)
|
|
|
|
feedback.setProgress(int(current * total))
|
|
|
|
del writer
|