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[processing] Rework centroid algorithm to handle non-polygon layers

Browse Source 
The existing polygoncentroids algorithm has been deprecated
(and hidden from the toolbox), and a new, generic centroids
algorithm added which works with lines and multipoints
This commit is contained in:
Nyall Dawson 2016-08-12 07:39:18 +10:00
parent d0faca16a7
commit e9423dc4dd
18 changed files with 594 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
python/plugins/processing/algs/help/qgis.yaml
View File

@ -44,6 +44,11 @@ qgis:buildvirtualvector: >
The output virtual layer will not be open in the current project.
qgis:centroids: >
This algorithm creates a new point layer, with points representing the centroid of the geometries in an input layer.
The attributes associated to each point in the output layer are the same ones associated to the original features.
qgis:checkvalidity:
This algorithm performs a validity check on the geometries of a vector layer.
@ -306,6 +311,8 @@ qgis:polygoncentroids: >
The attributes associated to each point in the output layer are the same ones associated to the original polygon.
NOTE: This algorithm is deprecated and the generic "centroids" algorithm (which works for line and multi geometry layers) should be used instead.
qgis:polygonfromlayerextent: >
This algorithm takes a vector layer and generate a new one with the minimum bounding box (rectangle with N-S orientation) that covers all the input features.

33
python/plugins/processing/algs/qgis/Centroids.py
View File

@ -29,10 +29,10 @@ import os
from qgis.PyQt.QtGui import QIcon
from qgis.core import Qgis, QgsGeometry, QgsFeature, QgsWkbTypes
from qgis.core import QgsWkbTypes
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
from processing.core.ProcessingLog import ProcessingLog
from processing.core.parameters import ParameterVector
from processing.core.outputs import OutputVector
from processing.tools import dataobjects, vector
@ -49,11 +49,11 @@ class Centroids(GeoAlgorithm):
return QIcon(os.path.join(pluginPath, 'images', 'ftools', 'centroids.png'))
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('Polygon centroids')
self.name, self.i18n_name = self.trAlgorithm('Centroids')
self.group, self.i18n_group = self.trAlgorithm('Vector geometry tools')
self.addParameter(ParameterVector(self.INPUT_LAYER,
self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_POLYGON]))
self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_ANY]))
self.addOutput(OutputVector(self.OUTPUT_LAYER, self.tr('Centroids')))
@ -67,25 +67,18 @@ class Centroids(GeoAlgorithm):
QgsWkbTypes.Point,
layer.crs())
outFeat = QgsFeature()
features = vector.features(layer)
total = 100.0 / len(features)
for current, feat in enumerate(features):
inGeom = feat.geometry()
attrs = feat.attributes()
for current, input_feature in enumerate(features):
output_feature = input_feature
if input_feature.geometry():
output_geometry = input_feature.geometry().centroid()
if not output_geometry:
ProcessingLog.addToLog(ProcessingLog.LOG_WARNING,
'Error calculating centroid for feature {}'.format(input_feature.id()))
output_feature.setGeometry(output_geometry)
if inGeom.isEmpty():
outGeom = QgsGeometry(None)
else:
outGeom = QgsGeometry(inGeom.centroid())
if not outGeom:
raise GeoAlgorithmExecutionException(
self.tr('Error calculating centroid'))
outFeat.setGeometry(outGeom)
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
writer.addFeature(output_feature)
progress.setPercentage(int(current * total))
del writer

96
python/plugins/processing/algs/qgis/PolygonCentroids.py Normal file
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@ -0,0 +1,96 @@
# -*- coding: utf-8 -*-
"""
***************************************************************************
PolygonCentroids.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 archive323
__revision__ = '$Format:%H$'
import os
from qgis.PyQt.QtGui import QIcon
from qgis.core import Qgis, QgsGeometry, QgsFeature, QgsWkbTypes
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
from processing.core.parameters import ParameterVector
from processing.core.outputs import OutputVector
from processing.tools import dataobjects, vector
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
class PolygonCentroids(GeoAlgorithm):
INPUT_LAYER = 'INPUT_LAYER'
OUTPUT_LAYER = 'OUTPUT_LAYER'
def __init__(self):
GeoAlgorithm.__init__(self)
# this algorithm is deprecated - use Centroids instead
self.showInToolbox = False
def getIcon(self):
return QIcon(os.path.join(pluginPath, 'images', 'ftools', 'centroids.png'))
def defineCharacteristics(self):
self.name, self.i18n_name = self.trAlgorithm('Polygon centroids')
self.group, self.i18n_group = self.trAlgorithm('Vector geometry tools')
self.addParameter(ParameterVector(self.INPUT_LAYER,
self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_POLYGON]))
self.addOutput(OutputVector(self.OUTPUT_LAYER, self.tr('Centroids')))
def processAlgorithm(self, progress):
layer = dataobjects.getObjectFromUri(
self.getParameterValue(self.INPUT_LAYER))
writer = self.getOutputFromName(
self.OUTPUT_LAYER).getVectorWriter(
layer.fields(),
QgsWkbTypes.Point,
layer.crs())
outFeat = QgsFeature()
features = vector.features(layer)
total = 100.0 / len(features)
for current, feat in enumerate(features):
inGeom = feat.geometry()
attrs = feat.attributes()
if inGeom.isEmpty():
outGeom = QgsGeometry(None)
else:
outGeom = QgsGeometry(inGeom.centroid())
if not outGeom:
raise GeoAlgorithmExecutionException(
self.tr('Error calculating centroid'))
outFeat.setGeometry(outGeom)
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
progress.setPercentage(int(current * total))
del writer

3
python/plugins/processing/algs/qgis/QGISAlgorithmProvider.py
View File

@ -151,6 +151,7 @@ from .BoundingBox import BoundingBox
from .Boundary import Boundary
from .PointOnSurface import PointOnSurface
from .OffsetLine import OffsetLine
from .PolygonCentroids import PolygonCentroids
pluginPath = os.path.normpath(os.path.join(
os.path.split(os.path.dirname(__file__))[0], os.pardir))
@ -204,7 +205,7 @@ class QGISAlgorithmProvider(AlgorithmProvider):
RectanglesOvalsDiamondsVariable(),
RectanglesOvalsDiamondsFixed(), MergeLines(),
BoundingBox(), Boundary(), PointOnSurface(),
OffsetLine()
OffsetLine(), PolygonCentroids()
]
if hasMatplotlib:

2
python/plugins/processing/gui/menus.py
View File

@ -52,7 +52,7 @@ defaultMenuEntries.update({'qgis:convexhull': geoprocessingToolsMenu,
geometryToolsMenu = vectorMenu + "/" + Processing.tr('G&eometry Tools')
defaultMenuEntries.update({'qgis:checkvalidity': geometryToolsMenu,
'qgis:exportaddgeometrycolumns': geometryToolsMenu,
'qgis:polygoncentroids': geometryToolsMenu,
'qgis:centroids': geometryToolsMenu,
'qgis:delaunaytriangulation': geometryToolsMenu,
'qgis:voronoipolygons': geometryToolsMenu,
'qgis:simplifygeometries': geometryToolsMenu,

15
python/plugins/processing/tests/testdata/expected/centroid_lines.gfs vendored Normal file
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@ -0,0 +1,15 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>centroid_lines</Name>
<ElementPath>centroid_lines</ElementPath>
<GeometryType>1</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>7</FeatureCount>
<ExtentXMin>0.00000</ExtentXMin>
<ExtentXMax>8.75520</ExtentXMax>
<ExtentYMin>-3.00000</ExtentYMin>
<ExtentYMax>2.90165</ExtentYMax>
</DatasetSpecificInfo>
</GMLFeatureClass>
</GMLFeatureClassList>

48
python/plugins/processing/tests/testdata/expected/centroid_lines.gml vendored Normal file
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@ -0,0 +1,48 @@
<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=""
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>-3</gml:Y></gml:coord>
<gml:coord><gml:X>8.755203820042828</gml:X><gml:Y>2.901650429449553</gml:Y></gml:coord>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ogr:centroid_lines fid="lines.0">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>8.755203820042828,2.901650429449553</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_lines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_lines fid="lines.1">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>0,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_lines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_lines fid="lines.2">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>2.375,1.625</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_lines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_lines fid="lines.3">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4,1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_lines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_lines fid="lines.4">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>8.5,-3.0</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_lines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_lines fid="lines.5">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>8,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_lines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_lines fid="lines.6">
</ogr:centroid_lines>
</gml:featureMember>
</ogr:FeatureCollection>

15
python/plugins/processing/tests/testdata/expected/centroid_multilines.gfs vendored Normal file
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@ -0,0 +1,15 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>centroid_multilines</Name>
<ElementPath>centroid_multilines</ElementPath>
<GeometryType>1</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>4</FeatureCount>
<ExtentXMin>0.00000</ExtentXMin>
<ExtentXMax>4.41936</ExtentXMax>
<ExtentYMin>-1.00000</ExtentYMin>
<ExtentYMax>2.68756</ExtentYMax>
</DatasetSpecificInfo>
</GMLFeatureClass>
</GMLFeatureClassList>

33
python/plugins/processing/tests/testdata/expected/centroid_multilines.gml vendored Normal file
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@ -0,0 +1,33 @@
<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=""
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>4.41935638121706</gml:X><gml:Y>2.687560818469874</gml:Y></gml:coord>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ogr:centroid_multilines fid="lines.1">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>0,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_multilines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multilines fid="lines.2">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4.41935638121706,1.293104104489945</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_multilines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multilines fid="lines.3">
</ogr:centroid_multilines>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multilines fid="lines.4">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>3.423678244400056,2.687560818469874</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_multilines>
</gml:featureMember>
</ogr:FeatureCollection>

19
python/plugins/processing/tests/testdata/expected/centroid_multipoint.gfs vendored Normal file
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@ -0,0 +1,19 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>centroid_multipoint</Name>
<ElementPath>centroid_multipoint</ElementPath>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>5</FeatureCount>
<ExtentXMin>2.00000</ExtentXMin>
<ExtentXMax>4.50000</ExtentXMax>
<ExtentYMin>-3.00000</ExtentYMin>
<ExtentYMax>2.00000</ExtentYMax>
</DatasetSpecificInfo>
<PropertyDefn>
<Name>d</Name>
<ElementPath>d</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
</GMLFeatureClass>
</GMLFeatureClassList>

43
python/plugins/processing/tests/testdata/expected/centroid_multipoint.gml vendored Normal file
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@ -0,0 +1,43 @@
<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=""
xmlns:ogr="http://ogr.maptools.org/"
xmlns:gml="http://www.opengis.net/gml">
<gml:boundedBy>
<gml:Box>
<gml:coord><gml:X>2</gml:X><gml:Y>-3</gml:Y></gml:coord>
<gml:coord><gml:X>4.5</gml:X><gml:Y>2</gml:Y></gml:coord>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ogr:centroid_multipoint fid="points.9">
<ogr:d>5</ogr:d>
</ogr:centroid_multipoint>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipoint fid="points.0">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>2,2</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:d>1</ogr:d>
</ogr:centroid_multipoint>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipoint fid="points.3">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4.5,1.5</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:d>2</ogr:d>
</ogr:centroid_multipoint>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipoint fid="points.5">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4,-3</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:d>3</ogr:d>
</ogr:centroid_multipoint>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipoint fid="points.7">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>3.5,-1.0</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:d>4</ogr:d>
</ogr:centroid_multipoint>
</gml:featureMember>
</ogr:FeatureCollection>

31
python/plugins/processing/tests/testdata/expected/centroid_multipolys.gfs vendored Normal file
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@ -0,0 +1,31 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>centroid_multipolys</Name>
<ElementPath>centroid_multipolys</ElementPath>
<GeometryType>1</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>4</FeatureCount>
<ExtentXMin>0.50000</ExtentXMin>
<ExtentXMax>7.68889</ExtentXMax>
<ExtentYMin>0.50000</ExtentYMin>
<ExtentYMax>2.91111</ExtentYMax>
</DatasetSpecificInfo>
<PropertyDefn>
<Name>Bname</Name>
<ElementPath>Bname</ElementPath>
<Type>String</Type>
<Width>4</Width>
</PropertyDefn>
<PropertyDefn>
<Name>Bintval</Name>
<ElementPath>Bintval</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
<PropertyDefn>
<Name>Bfloatval</Name>
<ElementPath>Bfloatval</ElementPath>
<Type>Real</Type>
</PropertyDefn>
</GMLFeatureClass>
</GMLFeatureClassList>

42
python/plugins/processing/tests/testdata/expected/centroid_multipolys.gml vendored Normal file
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@ -0,0 +1,42 @@
<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=""
xmlns:ogr="http://ogr.maptools.org/"
xmlns:gml="http://www.opengis.net/gml">
<gml:boundedBy>
<gml:Box>
<gml:coord><gml:X>0.5</gml:X><gml:Y>0.5</gml:Y></gml:coord>
<gml:coord><gml:X>7.688888888888888</gml:X><gml:Y>2.911111111111111</gml:Y></gml:coord>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ogr:centroid_multipolys fid="multipolys.0">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>3.166666666666667,1.833333333333333</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:Bname>Test</ogr:Bname>
<ogr:Bintval>1</ogr:Bintval>
<ogr:Bfloatval>0.123</ogr:Bfloatval>
</ogr:centroid_multipolys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipolys fid="multipolys.1">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>7.688888888888888,2.911111111111111</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_multipolys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipolys fid="multipolys.2">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>0.5,0.5</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:Bname>Test</ogr:Bname>
<ogr:Bintval>2</ogr:Bintval>
<ogr:Bfloatval>-0.123</ogr:Bfloatval>
</ogr:centroid_multipolys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_multipolys fid="multipolys.3">
<ogr:Bname>Test</ogr:Bname>
<ogr:Bintval>3</ogr:Bintval>
<ogr:Bfloatval>0</ogr:Bfloatval>
</ogr:centroid_multipolys>
</gml:featureMember>
</ogr:FeatureCollection>

15
python/plugins/processing/tests/testdata/expected/centroid_points.gfs vendored Normal file
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@ -0,0 +1,15 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>centroid_points</Name>
<ElementPath>centroid_points</ElementPath>
<GeometryType>1</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>9</FeatureCount>
<ExtentXMin>0.00000</ExtentXMin>
<ExtentXMax>8.00000</ExtentXMax>
<ExtentYMin>-5.00000</ExtentYMin>
<ExtentYMax>3.00000</ExtentYMax>
</DatasetSpecificInfo>
</GMLFeatureClass>
</GMLFeatureClassList>

59
python/plugins/processing/tests/testdata/expected/centroid_points.gml vendored Normal file
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@ -0,0 +1,59 @@
<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=""
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>-5</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:centroid_points fid="points.0">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>1,1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.1">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>3,3</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.2">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>2,2</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.3">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>5,2</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.4">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4,1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.5">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>0,-5</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.6">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>8,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.7">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>7,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_points fid="points.8">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>0,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
</ogr:centroid_points>
</gml:featureMember>
</ogr:FeatureCollection>

31
python/plugins/processing/tests/testdata/expected/centroid_polys.gfs vendored Normal file
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@ -0,0 +1,31 @@
<GMLFeatureClassList>
<GMLFeatureClass>
<Name>centroid_polys</Name>
<ElementPath>centroid_polys</ElementPath>
<GeometryType>1</GeometryType>
<SRSName>EPSG:4326</SRSName>
<DatasetSpecificInfo>
<FeatureCount>6</FeatureCount>
<ExtentXMin>0.65385</ExtentXMin>
<ExtentXMax>8.00000</ExtentXMax>
<ExtentYMin>-1.00000</ExtentYMin>
<ExtentYMax>5.50000</ExtentYMax>
</DatasetSpecificInfo>
<PropertyDefn>
<Name>name</Name>
<ElementPath>name</ElementPath>
<Type>String</Type>
<Width>5</Width>
</PropertyDefn>
<PropertyDefn>
<Name>intval</Name>
<ElementPath>intval</ElementPath>
<Type>Integer</Type>
</PropertyDefn>
<PropertyDefn>
<Name>floatval</Name>
<ElementPath>floatval</ElementPath>
<Type>Real</Type>
</PropertyDefn>
</GMLFeatureClass>
</GMLFeatureClassList>

58
python/plugins/processing/tests/testdata/expected/centroid_polys.gml vendored Normal file
View File

@ -0,0 +1,58 @@
<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=""
xmlns:ogr="http://ogr.maptools.org/"
xmlns:gml="http://www.opengis.net/gml">
<gml:boundedBy>
<gml:Box>
<gml:coord><gml:X>0.6538461538461539</gml:X><gml:Y>-1</gml:Y></gml:coord>
<gml:coord><gml:X>8</gml:X><gml:Y>5.5</gml:Y></gml:coord>
</gml:Box>
</gml:boundedBy>
<gml:featureMember>
<ogr:centroid_polys fid="polys.0">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>0.653846153846154,1.115384615384615</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:name>aaaaa</ogr:name>
<ogr:intval>33</ogr:intval>
<ogr:floatval>44.123456</ogr:floatval>
</ogr:centroid_polys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_polys fid="polys.1">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>5.0,4.333333333333333</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:name>Aaaaa</ogr:name>
<ogr:intval>-33</ogr:intval>
<ogr:floatval>0</ogr:floatval>
</ogr:centroid_polys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_polys fid="polys.2">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>2.5,5.5</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:name>bbaaa</ogr:name>
<ogr:floatval>0.123</ogr:floatval>
</ogr:centroid_polys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_polys fid="polys.3">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>8,-1</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:name>ASDF</ogr:name>
<ogr:intval>0</ogr:intval>
</ogr:centroid_polys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_polys fid="polys.4">
<ogr:intval>120</ogr:intval>
<ogr:floatval>-100291.43213</ogr:floatval>
</ogr:centroid_polys>
</gml:featureMember>
<gml:featureMember>
<ogr:centroid_polys fid="polys.5">
<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4.080459770114943,-0.218390804597701</gml:coordinates></gml:Point></ogr:geometryProperty>
<ogr:name>elim</ogr:name>
<ogr:intval>2</ogr:intval>
<ogr:floatval>3.33</ogr:floatval>
</ogr:centroid_polys>
</gml:featureMember>
</ogr:FeatureCollection>

66
python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml vendored
View File

@ -743,3 +743,69 @@ tests:
name: expected/buffer_lines_square.gml
type: vector
- algorithm: qgis:centroids
name: Test (qgis:centroids)
params:
INPUT_LAYER:
name: lines.gml
type: vector
results:
OUTPUT_LAYER:
name: expected/centroid_lines.gml
type: vector
- algorithm: qgis:centroids
name: Test (qgis:centroids)
params:
INPUT_LAYER:
name: multilines.gml
type: vector
results:
OUTPUT_LAYER:
name: expected/centroid_multilines.gml
type: vector
- algorithm: qgis:centroids
name: Test (qgis:centroids)
params:
INPUT_LAYER:
name: multipoints.gml
type: vector
results:
OUTPUT_LAYER:
name: expected/centroid_multipoint.gml
type: vector
- algorithm: qgis:centroids
name: Test (qgis:centroids)
params:
INPUT_LAYER:
name: multipolys.gml
type: vector
results:
OUTPUT_LAYER:
name: expected/centroid_multipolys.gml
type: vector
- algorithm: qgis:centroids
name: Test (qgis:centroids)
params:
INPUT_LAYER:
name: points.gml
type: vector
results:
OUTPUT_LAYER:
name: expected/centroid_points.gml
type: vector
- algorithm: qgis:centroids
name: Test (qgis:centroids)
params:
INPUT_LAYER:
name: polys.gml
type: vector
results:
OUTPUT_LAYER:
name: expected/centroid_polys.gml
type: vector