2017-08-22 23:36:42 +10:00

69 lines
2.4 KiB
Python

# -*- coding: utf-8 -*-
"""
***************************************************************************
DeleteHoles.py
---------------------
Date : April 2015
Copyright : (C) 2015 by Etienne Trimaille
***************************************************************************
* *
* 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__ = 'Etienne Trimaille'
__date__ = 'April 2015'
__copyright__ = '(C) 2015, Etienne Trimaille'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from qgis.core import (QgsProcessingParameterNumber)
from processing.algs.qgis.QgisAlgorithm import QgisFeatureBasedAlgorithm
class DeleteHoles(QgisFeatureBasedAlgorithm):
MIN_AREA = 'MIN_AREA'
def __init__(self):
super().__init__()
self.min_area = None
def initParameters(self, config=None):
self.addParameter(QgsProcessingParameterNumber(self.MIN_AREA,
self.tr('Remove holes with area less than'), QgsProcessingParameterNumber.Double,
0, True, 0.0, 10000000.0))
def tags(self):
return self.tr('remove,delete,drop,holes,rings,fill').split(',')
def group(self):
return self.tr('Vector geometry')
def name(self):
return 'deleteholes'
def displayName(self):
return self.tr('Delete holes')
def outputName(self):
return self.tr('Cleaned')
def prepareAlgorithm(self, parameters, context, feedback):
self.min_area = self.parameterAsDouble(parameters, self.MIN_AREA, context)
if self.min_area == 0.0:
self.min_area = -1.0
return True
def processFeature(self, feature, feedback):
if feature.hasGeometry():
feature.setGeometry(feature.geometry().removeInteriorRings(self.min_area))
return feature