-
-
Notifications
You must be signed in to change notification settings - Fork 2.9k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[processing] turn keep n biggest parts script into normal algorithm
- Loading branch information
Showing
7 changed files
with
209 additions
and
49 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,9 +1,4 @@ | ||
FILE(GLOB PY_FILES *.py) | ||
FILE(GLOB HELP_FILES help/*.rst) | ||
FILE(GLOB SCRIPT_FILES scripts/*.*) | ||
|
||
ADD_SUBDIRECTORY(ui) | ||
|
||
PLUGIN_INSTALL(processing algs/qgis ${PY_FILES}) | ||
PLUGIN_INSTALL(processing algs/qgis/help ${HELP_FILES}) | ||
PLUGIN_INSTALL(processing algs/qgis/scripts ${SCRIPT_FILES}) |
107 changes: 107 additions & 0 deletions
107
python/plugins/processing/algs/qgis/KeepNBiggestParts.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,107 @@ | ||
# -*- coding: utf-8 -*- | ||
|
||
""" | ||
*************************************************************************** | ||
KeepNBiggestParts.py | ||
--------------------- | ||
Date : July 2014 | ||
Copyright : (C) 2014 by Victor Olaya | ||
Email : volayaf at gmail dot com | ||
*************************************************************************** | ||
* * | ||
* This program is free software; you can redistribute it and/or modify * | ||
* it under the terms of the GNU General Public License as published by * | ||
* the Free Software Foundation; either version 2 of the License, or * | ||
* (at your option) any later version. * | ||
* * | ||
*************************************************************************** | ||
""" | ||
|
||
__author__ = 'Victor Olaya' | ||
__date__ = 'July 2014' | ||
__copyright__ = '(C) 2014, Victor Olaya' | ||
|
||
# This will get replaced with a git SHA1 when you do a git archive | ||
|
||
__revision__ = '$Format:%H$' | ||
|
||
from operator import itemgetter | ||
|
||
|
||
from qgis.core import (QgsGeometry, | ||
QgsFeatureSink, | ||
QgsProcessing, | ||
QgsProcessingParameterFeatureSink, | ||
QgsProcessingParameterFeatureSource, | ||
QgsProcessingParameterNumber, | ||
) | ||
|
||
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm | ||
|
||
|
||
class KeepNBiggestParts(QgisAlgorithm): | ||
|
||
POLYGONS = 'POLYGONS' | ||
PARTS = 'PARTS' | ||
OUTPUT = 'OUTPUT' | ||
|
||
def group(self): | ||
return self.tr('Vector geometry') | ||
|
||
def groupId(self): | ||
return 'vectorgeometry' | ||
|
||
def __init__(self): | ||
super().__init__() | ||
|
||
def initAlgorithm(self, config=None): | ||
self.addParameter(QgsProcessingParameterFeatureSource(self.POLYGONS, | ||
self.tr('Polygons'), [QgsProcessing.TypeVectorPolygon])) | ||
self.addParameter(QgsProcessingParameterNumber(self.PARTS, | ||
self.tr('Parts to keep'), | ||
QgsProcessingParameterNumber.Integer, | ||
1, False, 1)) | ||
self.addParameter( | ||
QgsProcessingParameterFeatureSink(self.OUTPUT, self.tr('Parts'), QgsProcessing.TypeVectorPolygon)) | ||
|
||
def name(self): | ||
return 'keepnbiggestparts' | ||
|
||
def displayName(self): | ||
return self.tr('Keep N biggest parts') | ||
|
||
def processAlgorithm(self, parameters, context, feedback): | ||
source = self.parameterAsSource(parameters, self.POLYGONS, context) | ||
parts = self.parameterAsInt(parameters, self.PARTS, context) | ||
|
||
fields = source.fields() | ||
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context, | ||
source.fields(), source.wkbType(), source.sourceCrs()) | ||
|
||
features = source.getFeatures() | ||
total = 100.0 / source.featureCount() if source.featureCount() else 0 | ||
for current, feat in enumerate(features): | ||
if feedback.isCanceled(): | ||
break | ||
|
||
geom = feat.geometry() | ||
if geom.isMultipart(): | ||
out_feature = feat | ||
geoms = geom.asGeometryCollection() | ||
geom_area = [(i, geoms[i].area()) for i in range(len(geoms))] | ||
geom_area.sort(key=itemgetter(1)) | ||
if parts == 1: | ||
out_feature.setGeometry(geoms[geom_area[-1][0]]) | ||
elif parts > len(geoms): | ||
out_feature.setGeometry(geom) | ||
else: | ||
out_feature.setGeometry(geom) | ||
geomres = [geoms[i].asPolygon() for i, a in geom_area[-1 * parts:]] | ||
out_feature.setGeometry(QgsGeometry.fromMultiPolygonXY(geomres)) | ||
sink.addFeature(out_feature, QgsFeatureSink.FastInsert) | ||
else: | ||
sink.addFeature(feat, QgsFeatureSink.FastInsert) | ||
|
||
feedback.setProgress(int(current * total)) | ||
|
||
return {self.OUTPUT: dest_id} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
44 changes: 0 additions & 44 deletions
44
python/plugins/processing/algs/qgis/scripts/Keep_n_biggest_parts.py
This file was deleted.
Oops, something went wrong.
45 changes: 45 additions & 0 deletions
45
python/plugins/processing/tests/testdata/expected/biggest_parts.gml
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,45 @@ | ||
<?xml version="1.0" encoding="utf-8" ?> | ||
<ogr:FeatureCollection | ||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
xsi:schemaLocation="http://ogr.maptools.org/ biggest_parts.xsd" | ||
xmlns:ogr="http://ogr.maptools.org/" | ||
xmlns:gml="http://www.opengis.net/gml"> | ||
<gml:boundedBy> | ||
<gml:Box> | ||
<gml:coord><gml:X>0</gml:X><gml:Y>-1</gml:Y></gml:coord> | ||
<gml:coord><gml:X>8</gml:X><gml:Y>3</gml:Y></gml:coord> | ||
</gml:Box> | ||
</gml:boundedBy> | ||
|
||
<gml:featureMember> | ||
<ogr:biggest_parts fid="multipolys.0"> | ||
<ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>2,1 2,2 3,2 3,3 4,3 4,1 2,1</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty> | ||
<ogr:Bname>Test</ogr:Bname> | ||
<ogr:Bintval>1</ogr:Bintval> | ||
<ogr:Bfloatval>0.123</ogr:Bfloatval> | ||
</ogr:biggest_parts> | ||
</gml:featureMember> | ||
<gml:featureMember> | ||
<ogr:biggest_parts fid="multipolys.1"> | ||
<ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>7,-1 8,-1 8,3 7,3 7,-1</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty> | ||
<ogr:Bname xsi:nil="true"/> | ||
<ogr:Bintval xsi:nil="true"/> | ||
<ogr:Bfloatval xsi:nil="true"/> | ||
</ogr:biggest_parts> | ||
</gml:featureMember> | ||
<gml:featureMember> | ||
<ogr:biggest_parts fid="multipolys.2"> | ||
<ogr:geometryProperty><gml:MultiPolygon srsName="EPSG:4326"><gml:polygonMember><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>0,0 0,1 1,1 1,0 0,0</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></gml:polygonMember></gml:MultiPolygon></ogr:geometryProperty> | ||
<ogr:Bname>Test</ogr:Bname> | ||
<ogr:Bintval>2</ogr:Bintval> | ||
<ogr:Bfloatval>-0.123</ogr:Bfloatval> | ||
</ogr:biggest_parts> | ||
</gml:featureMember> | ||
<gml:featureMember> | ||
<ogr:biggest_parts fid="multipolys.3"> | ||
<ogr:Bname>Test</ogr:Bname> | ||
<ogr:Bintval>3</ogr:Bintval> | ||
<ogr:Bfloatval>0</ogr:Bfloatval> | ||
</ogr:biggest_parts> | ||
</gml:featureMember> | ||
</ogr:FeatureCollection> |
43 changes: 43 additions & 0 deletions
43
python/plugins/processing/tests/testdata/expected/biggest_parts.xsd
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,43 @@ | ||
<?xml version="1.0" encoding="UTF-8"?> | ||
<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0"> | ||
<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/> | ||
<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/> | ||
<xs:complexType name="FeatureCollectionType"> | ||
<xs:complexContent> | ||
<xs:extension base="gml:AbstractFeatureCollectionType"> | ||
<xs:attribute name="lockId" type="xs:string" use="optional"/> | ||
<xs:attribute name="scope" type="xs:string" use="optional"/> | ||
</xs:extension> | ||
</xs:complexContent> | ||
</xs:complexType> | ||
<xs:element name="biggest_parts" type="ogr:biggest_parts_Type" substitutionGroup="gml:_Feature"/> | ||
<xs:complexType name="biggest_parts_Type"> | ||
<xs:complexContent> | ||
<xs:extension base="gml:AbstractFeatureType"> | ||
<xs:sequence> | ||
<xs:element name="geometryProperty" type="gml:MultiPolygonPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/> | ||
<xs:element name="Bname" nillable="true" minOccurs="0" maxOccurs="1"> | ||
<xs:simpleType> | ||
<xs:restriction base="xs:string"> | ||
<xs:maxLength value="4"/> | ||
</xs:restriction> | ||
</xs:simpleType> | ||
</xs:element> | ||
<xs:element name="Bintval" nillable="true" minOccurs="0" maxOccurs="1"> | ||
<xs:simpleType> | ||
<xs:restriction base="xs:integer"> | ||
<xs:totalDigits value="10"/> | ||
</xs:restriction> | ||
</xs:simpleType> | ||
</xs:element> | ||
<xs:element name="Bfloatval" nillable="true" minOccurs="0" maxOccurs="1"> | ||
<xs:simpleType> | ||
<xs:restriction base="xs:decimal"> | ||
</xs:restriction> | ||
</xs:simpleType> | ||
</xs:element> | ||
</xs:sequence> | ||
</xs:extension> | ||
</xs:complexContent> | ||
</xs:complexType> | ||
</xs:schema> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters