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[FEATURE][processing] Add 'Project points (cartesian)' algorithm
Projects points from an input point layer by a specified distance and bearing (azimuth). Supports dynamic parameters for the distance and bearing so that they can use field values or expressions.
This commit is contained in:
Nyall Dawson
parent
84c5089389
commit
1bada065ed
43
python/plugins/processing/tests/testdata/expected/projected_multipoints.gml
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43
python/plugins/processing/tests/testdata/expected/projected_multipoints.gml
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@ -0,0 +1,43 @@
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<?xml version="1.0" encoding="utf-8" ?>
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<ogr:FeatureCollection
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://ogr.maptools.org/ projected_multipoints.xsd"
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xmlns:ogr="http://ogr.maptools.org/"
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xmlns:gml="http://www.opengis.net/gml">
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<gml:boundedBy>
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<gml:Box>
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<gml:coord><gml:X>-0.5</gml:X><gml:Y>-5</gml:Y></gml:coord>
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<gml:coord><gml:X>7.5</gml:X><gml:Y>3</gml:Y></gml:coord>
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</gml:Box>
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</gml:boundedBy>
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<gml:featureMember>
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<ogr:projected_multipoints fid="points.9">
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<ogr:d>5</ogr:d>
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</ogr:projected_multipoints>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_multipoints fid="points.0">
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<ogr:geometryProperty><gml:MultiPoint srsName="EPSG:4326"><gml:pointMember><gml:Point><gml:coordinates>0.5,1.0</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>1.5,2.0</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>2.5,3.0</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
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<ogr:d>1</ogr:d>
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</ogr:projected_multipoints>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_multipoints fid="points.3">
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<ogr:geometryProperty><gml:MultiPoint srsName="EPSG:4326"><gml:pointMember><gml:Point><gml:coordinates>4.5,2.0</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>3.5,1.0</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
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<ogr:d>2</ogr:d>
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</ogr:projected_multipoints>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_multipoints fid="points.5">
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<ogr:geometryProperty><gml:MultiPoint srsName="EPSG:4326"><gml:pointMember><gml:Point><gml:coordinates>-0.5,-5.0</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>7.5,-1.0</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
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<ogr:d>3</ogr:d>
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</ogr:projected_multipoints>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_multipoints fid="points.7">
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<ogr:geometryProperty><gml:MultiPoint srsName="EPSG:4326"><gml:pointMember><gml:Point><gml:coordinates>6.5,-1.0</gml:coordinates></gml:Point></gml:pointMember><gml:pointMember><gml:Point><gml:coordinates>-0.5,-1.0</gml:coordinates></gml:Point></gml:pointMember></gml:MultiPoint></ogr:geometryProperty>
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<ogr:d>4</ogr:d>
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</ogr:projected_multipoints>
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</gml:featureMember>
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</ogr:FeatureCollection>
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30
python/plugins/processing/tests/testdata/expected/projected_multipoints.xsd
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30
python/plugins/processing/tests/testdata/expected/projected_multipoints.xsd
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@ -0,0 +1,30 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
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<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
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<xs:complexType name="FeatureCollectionType">
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<xs:complexContent>
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<xs:extension base="gml:AbstractFeatureCollectionType">
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<xs:attribute name="lockId" type="xs:string" use="optional"/>
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<xs:attribute name="scope" type="xs:string" use="optional"/>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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<xs:element name="projected_multipoints" type="ogr:projected_multipoints_Type" substitutionGroup="gml:_Feature"/>
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<xs:complexType name="projected_multipoints_Type">
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<xs:complexContent>
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<xs:extension base="gml:AbstractFeatureType">
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<xs:sequence>
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<xs:element name="geometryProperty" type="gml:MultiPointPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
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<xs:element name="d" nillable="true" minOccurs="0" maxOccurs="1">
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<xs:simpleType>
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<xs:restriction base="xs:integer">
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<xs:totalDigits value="10"/>
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</xs:restriction>
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</xs:simpleType>
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</xs:element>
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</xs:sequence>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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</xs:schema>
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77
python/plugins/processing/tests/testdata/expected/projected_points.gml
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77
python/plugins/processing/tests/testdata/expected/projected_points.gml
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@ -0,0 +1,77 @@
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<?xml version="1.0" encoding="utf-8" ?>
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<ogr:FeatureCollection
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://ogr.maptools.org/ projected_points.xsd"
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xmlns:ogr="http://ogr.maptools.org/"
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xmlns:gml="http://www.opengis.net/gml">
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<gml:boundedBy>
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<gml:Box>
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<gml:coord><gml:X>1</gml:X><gml:Y>-5</gml:Y></gml:coord>
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<gml:coord><gml:X>9</gml:X><gml:Y>3</gml:Y></gml:coord>
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</gml:Box>
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</gml:boundedBy>
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<gml:featureMember>
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<ogr:projected_points fid="points.0">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>2,1</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>1</ogr:id>
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<ogr:id2>2</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.1">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>4,3</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>2</ogr:id>
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<ogr:id2>1</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.2">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>3,2</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>3</ogr:id>
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<ogr:id2>0</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.3">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>6,2</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>4</ogr:id>
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<ogr:id2>2</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.4">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>5,1</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>5</ogr:id>
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<ogr:id2>1</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.5">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>1,-5</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>6</ogr:id>
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<ogr:id2>0</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.6">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>9.0,-1.0</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>7</ogr:id>
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<ogr:id2>0</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.7">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>8.0,-1.0</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>8</ogr:id>
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<ogr:id2>0</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:projected_points fid="points.8">
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<ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:coordinates>1.0,-1.0</gml:coordinates></gml:Point></ogr:geometryProperty>
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<ogr:id>9</ogr:id>
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<ogr:id2>0</ogr:id2>
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</ogr:projected_points>
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</gml:featureMember>
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</ogr:FeatureCollection>
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37
python/plugins/processing/tests/testdata/expected/projected_points.xsd
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37
python/plugins/processing/tests/testdata/expected/projected_points.xsd
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@ -0,0 +1,37 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<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">
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<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
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<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
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<xs:complexType name="FeatureCollectionType">
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<xs:complexContent>
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<xs:extension base="gml:AbstractFeatureCollectionType">
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<xs:attribute name="lockId" type="xs:string" use="optional"/>
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<xs:attribute name="scope" type="xs:string" use="optional"/>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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<xs:element name="projected_points" type="ogr:projected_points_Type" substitutionGroup="gml:_Feature"/>
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<xs:complexType name="projected_points_Type">
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<xs:complexContent>
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<xs:extension base="gml:AbstractFeatureType">
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<xs:sequence>
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<xs:element name="geometryProperty" type="gml:PointPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
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<xs:element name="id" nillable="true" minOccurs="0" maxOccurs="1">
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<xs:simpleType>
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<xs:restriction base="xs:integer">
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<xs:totalDigits value="10"/>
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</xs:restriction>
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</xs:simpleType>
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</xs:element>
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<xs:element name="id2" nillable="true" minOccurs="0" maxOccurs="1">
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<xs:simpleType>
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<xs:restriction base="xs:integer">
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<xs:totalDigits value="10"/>
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</xs:restriction>
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</xs:simpleType>
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</xs:element>
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</xs:sequence>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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</xs:schema>
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@ -4664,6 +4664,32 @@ tests:
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name: expected/difference.gml
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type: vector
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- algorithm: native:projectpointcartesian
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name: Project points cartesian
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params:
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BEARING: 90.0
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DISTANCE: 1.0
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INPUT:
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name: points.gml
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type: vector
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results:
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OUTPUT:
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name: expected/projected_points.gml
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type: vector
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- algorithm: native:projectpointcartesian
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name: Project multipoints cartesian
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params:
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BEARING: -90.0
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DISTANCE: 0.5
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INPUT:
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name: multipoints.gml
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type: vector
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results:
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OUTPUT:
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name: expected/projected_multipoints.gml
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type: vector
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- algorithm: native:removeduplicatevertices
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name: Remove duplicate vertices from lines
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params:
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@ -50,6 +50,7 @@ SET(QGIS_ANALYSIS_SRCS
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processing/qgsalgorithmorderbyexpression.cpp
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processing/qgsalgorithmorientedminimumboundingbox.cpp
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processing/qgsalgorithmpackage.cpp
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processing/qgsalgorithmprojectpointcartesian.cpp
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processing/qgsalgorithmpromotetomultipart.cpp
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processing/qgsalgorithmrasterlayeruniquevalues.cpp
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processing/qgsalgorithmremoveduplicatevertices.cpp
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140
src/analysis/processing/qgsalgorithmprojectpointcartesian.cpp
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140
src/analysis/processing/qgsalgorithmprojectpointcartesian.cpp
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@ -0,0 +1,140 @@
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/***************************************************************************
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qgsalgorithmprojectpointcartesian.cpp
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---------------------
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begin : April 2017
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copyright : (C) 2017 by Nyall Dawson
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email : nyall dot dawson at gmail dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgsalgorithmprojectpointcartesian.h"
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#include "qgsmultipoint.h"
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///@cond PRIVATE
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QString QgsProjectPointCartesianAlgorithm::name() const
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{
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return QStringLiteral( "projectpointcartesian" );
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}
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QString QgsProjectPointCartesianAlgorithm::displayName() const
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{
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return QObject::tr( "Project points (Cartesian)" );
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}
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QStringList QgsProjectPointCartesianAlgorithm::tags() const
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{
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return QObject::tr( "bearing,azimuth,distance,angle" ).split( ',' );
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}
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QString QgsProjectPointCartesianAlgorithm::group() const
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{
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return QObject::tr( "Vector geometry" );
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}
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QString QgsProjectPointCartesianAlgorithm::groupId() const
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{
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return QStringLiteral( "vectorgeometry" );
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}
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QString QgsProjectPointCartesianAlgorithm::outputName() const
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{
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return QObject::tr( "Projected" );
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}
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QString QgsProjectPointCartesianAlgorithm::shortHelpString() const
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{
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return QObject::tr( "This algorithm projects point geometries by a specified distance and bearing (azimuth), creating a new point layer with the projected points.\n\n"
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"The distance is specified in layer units, and the bearing in degrees clockwise from North." );
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}
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QList<int> QgsProjectPointCartesianAlgorithm::inputLayerTypes() const
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{
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return QList<int>() << QgsProcessing::TypeVectorPoint;
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}
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QgsProcessing::SourceType QgsProjectPointCartesianAlgorithm::outputLayerType() const
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{
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return QgsProcessing::TypeVectorPoint;
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}
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QgsProjectPointCartesianAlgorithm *QgsProjectPointCartesianAlgorithm::createInstance() const
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{
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return new QgsProjectPointCartesianAlgorithm();
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}
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void QgsProjectPointCartesianAlgorithm::initParameters( const QVariantMap & )
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{
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std::unique_ptr< QgsProcessingParameterNumber > bearing = qgis::make_unique< QgsProcessingParameterNumber >( QStringLiteral( "BEARING" ), QObject::tr( "Bearing (degrees from North)" ), QgsProcessingParameterNumber::Double, false );
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bearing->setIsDynamic( true );
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bearing->setDynamicPropertyDefinition( QgsPropertyDefinition( QStringLiteral( "Bearing" ), QObject::tr( "Bearing (degrees from North)" ), QgsPropertyDefinition::Double ) );
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bearing->setDynamicLayerParameterName( QStringLiteral( "INPUT" ) );
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addParameter( bearing.release() );
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std::unique_ptr< QgsProcessingParameterNumber > distance = qgis::make_unique< QgsProcessingParameterNumber >( QStringLiteral( "DISTANCE" ), QObject::tr( "Distance" ), QgsProcessingParameterNumber::Double, false );
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distance->setIsDynamic( true );
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distance->setDynamicPropertyDefinition( QgsPropertyDefinition( QStringLiteral( "Distance" ), QObject::tr( "Projection distance" ), QgsPropertyDefinition::Double ) );
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distance->setDynamicLayerParameterName( QStringLiteral( "INPUT" ) );
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addParameter( distance.release() );
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}
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bool QgsProjectPointCartesianAlgorithm::prepareAlgorithm( const QVariantMap ¶meters, QgsProcessingContext &context, QgsProcessingFeedback * )
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{
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mBearing = parameterAsDouble( parameters, QStringLiteral( "BEARING" ), context );
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mDynamicBearing = QgsProcessingParameters::isDynamic( parameters, QStringLiteral( "BEARING" ) );
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if ( mDynamicBearing )
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mBearingProperty = parameters.value( QStringLiteral( "BEARING" ) ).value< QgsProperty >();
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mDistance = parameterAsDouble( parameters, QStringLiteral( "DISTANCE" ), context );
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mDynamicDistance = QgsProcessingParameters::isDynamic( parameters, QStringLiteral( "DISTANCE" ) );
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if ( mDynamicDistance )
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mDistanceProperty = parameters.value( QStringLiteral( "DISTANCE" ) ).value< QgsProperty >();
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return true;
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}
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QgsFeatureList QgsProjectPointCartesianAlgorithm::processFeature( const QgsFeature &feature, QgsProcessingContext &context, QgsProcessingFeedback * )
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{
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QgsFeature f = feature;
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if ( f.hasGeometry() && QgsWkbTypes::geometryType( f.geometry().wkbType() ) == QgsWkbTypes::PointGeometry )
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{
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double distance = mDistance;
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if ( mDynamicDistance )
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distance = mDistanceProperty.valueAsDouble( context.expressionContext(), distance );
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double bearing = mBearing;
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if ( mDynamicBearing )
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bearing = mBearingProperty.valueAsDouble( context.expressionContext(), bearing );
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QgsGeometry g = f.geometry();
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if ( QgsWkbTypes::isMultiType( g.wkbType() ) )
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{
|
||||
const QgsMultiPoint *mp = static_cast< const QgsMultiPoint * >( g.constGet() );
|
||||
std::unique_ptr< QgsMultiPoint > result = qgis::make_unique< QgsMultiPoint >();
|
||||
for ( int i = 0; i < mp->numGeometries(); ++i )
|
||||
{
|
||||
const QgsPoint *p = static_cast< const QgsPoint * >( mp->geometryN( i ) );
|
||||
result->addGeometry( p->project( distance, bearing ).clone() );
|
||||
}
|
||||
f.setGeometry( QgsGeometry( std::move( result ) ) );
|
||||
}
|
||||
else
|
||||
{
|
||||
const QgsPoint *p = static_cast< const QgsPoint * >( g.constGet() );
|
||||
QgsPoint result = p->project( distance, bearing );
|
||||
f.setGeometry( QgsGeometry( result.clone() ) );
|
||||
}
|
||||
}
|
||||
|
||||
return QgsFeatureList() << f;
|
||||
}
|
||||
|
||||
///@endcond
|
||||
|
||||
69
src/analysis/processing/qgsalgorithmprojectpointcartesian.h
Normal file
69
src/analysis/processing/qgsalgorithmprojectpointcartesian.h
Normal file
@ -0,0 +1,69 @@
|
||||
/***************************************************************************
|
||||
qgsalgorithmprojectpointcartesian.h
|
||||
---------------------
|
||||
begin : April 2017
|
||||
copyright : (C) 2017 by Nyall Dawson
|
||||
email : nyall dot dawson 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. *
|
||||
* *
|
||||
***************************************************************************/
|
||||
|
||||
#ifndef QGSALGORITHMPROJECTPOINTCARTESIAN_H
|
||||
#define QGSALGORITHMPROJECTPOINTCARTESIAN_H
|
||||
|
||||
#define SIP_NO_FILE
|
||||
|
||||
#include "qgis.h"
|
||||
#include "qgsprocessingalgorithm.h"
|
||||
|
||||
///@cond PRIVATE
|
||||
|
||||
/**
|
||||
* Native Cartesian project points algorithm.
|
||||
*/
|
||||
class QgsProjectPointCartesianAlgorithm : public QgsProcessingFeatureBasedAlgorithm
|
||||
{
|
||||
|
||||
public:
|
||||
|
||||
QgsProjectPointCartesianAlgorithm() = default;
|
||||
QString name() const override;
|
||||
QString displayName() const override;
|
||||
QStringList tags() const override;
|
||||
QString group() const override;
|
||||
QString groupId() const override;
|
||||
QString shortHelpString() const override;
|
||||
QList<int> inputLayerTypes() const override;
|
||||
QgsProcessing::SourceType outputLayerType() const override;
|
||||
QgsProjectPointCartesianAlgorithm *createInstance() const override SIP_FACTORY;
|
||||
|
||||
protected:
|
||||
|
||||
void initParameters( const QVariantMap &configuration = QVariantMap() ) override;
|
||||
QString outputName() const override;
|
||||
bool prepareAlgorithm( const QVariantMap ¶meters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
|
||||
QgsFeatureList processFeature( const QgsFeature &feature, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
|
||||
|
||||
private:
|
||||
|
||||
double mBearing = 0.0;
|
||||
bool mDynamicBearing = false;
|
||||
QgsProperty mBearingProperty;
|
||||
double mDistance = 0.0;
|
||||
bool mDynamicDistance = false;
|
||||
QgsProperty mDistanceProperty;
|
||||
|
||||
};
|
||||
|
||||
///@endcond PRIVATE
|
||||
|
||||
#endif // QGSALGORITHMPROJECTPOINTCARTESIAN_H
|
||||
|
||||
|
||||
@ -47,6 +47,7 @@
|
||||
#include "qgsalgorithmorderbyexpression.h"
|
||||
#include "qgsalgorithmorientedminimumboundingbox.h"
|
||||
#include "qgsalgorithmpackage.h"
|
||||
#include "qgsalgorithmprojectpointcartesian.h"
|
||||
#include "qgsalgorithmpromotetomultipart.h"
|
||||
#include "qgsalgorithmrasterlayeruniquevalues.h"
|
||||
#include "qgsalgorithmremoveduplicatevertices.h"
|
||||
@ -136,6 +137,7 @@ void QgsNativeAlgorithms::loadAlgorithms()
|
||||
addAlgorithm( new QgsOrderByExpressionAlgorithm() );
|
||||
addAlgorithm( new QgsOrientedMinimumBoundingBoxAlgorithm() );
|
||||
addAlgorithm( new QgsPackageAlgorithm() );
|
||||
addAlgorithm( new QgsProjectPointCartesianAlgorithm() );
|
||||
addAlgorithm( new QgsPromoteToMultipartAlgorithm() );
|
||||
addAlgorithm( new QgsRasterLayerUniqueValuesReportAlgorithm() );
|
||||
addAlgorithm( new QgsAlgorithmRemoveDuplicateVertices() );
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user