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[FEATURE][processing] Native "split lines by maximum length" algorithm
This algorithm takes an input (multi)line (or curve) layer, and splits each feature into multiple parts such that no part is longer then the specified maximum length. Supports data-defined maximum length property, and edit in place operation. Credit to @NathanW2 for the inspiration!
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python/plugins/processing/tests/testdata/expected/split_lines_by_length.gml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| <?xml version="1.0" encoding="utf-8" ?> | ||
| <ogr:FeatureCollection | ||
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xsi:schemaLocation="http://ogr.maptools.org/ split_lines_by_length.xsd" | ||
| xmlns:ogr="http://ogr.maptools.org/" | ||
| xmlns:gml="http://www.opengis.net/gml"> | ||
| <gml:boundedBy> | ||
| <gml:Box> | ||
| <gml:coord><gml:X>-1</gml:X><gml:Y>-3</gml:Y></gml:coord> | ||
| <gml:coord><gml:X>11</gml:X><gml:Y>5</gml:Y></gml:coord> | ||
| </gml:Box> | ||
| </gml:boundedBy> | ||
|
|
||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.0"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>6,2 8.2,2.0</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.0"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>8.2,2.0 9,2 9,3 9.28284271247462,3.28284271247462</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.0"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>9.28284271247462,3.28284271247462 10.838477631085,4.83847763108502</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.0"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>10.838477631085,4.83847763108502 11,5</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.1"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>-1,-1 1,-1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.2"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>2,0 2,2 2.2,2.0</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.2"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>2.2,2.0 3,2 3,3</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.3"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3,1 5,1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>7,-3 9.2,-3.0</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>9.2,-3.0 10,-3</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.5"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>6,-3 7.55563491861041,-1.4443650813896</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.5"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>7.55563491861041,-1.4443650813896 9.11126983722081,0.111269837220809</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.5"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>9.11126983722081,0.111269837220809 10,1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_lines_by_length fid="lines.6"> | ||
| </ogr:split_lines_by_length> | ||
| </gml:featureMember> | ||
| </ogr:FeatureCollection> |
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python/plugins/processing/tests/testdata/expected/split_lines_by_length.xsd
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| Original file line number | Diff line number | Diff line change |
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| <?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="split_lines_by_length" type="ogr:split_lines_by_length_Type" substitutionGroup="gml:_Feature"/> | ||
| <xs:complexType name="split_lines_by_length_Type"> | ||
| <xs:complexContent> | ||
| <xs:extension base="gml:AbstractFeatureType"> | ||
| <xs:sequence> | ||
| <xs:element name="geometryProperty" type="gml:LineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/> | ||
| </xs:sequence> | ||
| </xs:extension> | ||
| </xs:complexContent> | ||
| </xs:complexType> | ||
| </xs:schema> |
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python/plugins/processing/tests/testdata/expected/split_linez_by_length.dbf
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python/plugins/processing/tests/testdata/expected/split_linez_by_length.prj
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| GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]] |
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python/plugins/processing/tests/testdata/expected/split_linez_by_length.qpj
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| GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]] |
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python/plugins/processing/tests/testdata/expected/split_linez_by_length.shp
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python/plugins/processing/tests/testdata/expected/split_linez_by_length.shx
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python/plugins/processing/tests/testdata/expected/split_multiline_by_length.gml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| <?xml version="1.0" encoding="utf-8" ?> | ||
| <ogr:FeatureCollection | ||
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xsi:schemaLocation="http://ogr.maptools.org/ split_multiline_by_length.xsd" | ||
| xmlns:ogr="http://ogr.maptools.org/" | ||
| xmlns:gml="http://www.opengis.net/gml"> | ||
| <gml:boundedBy> | ||
| <gml:Box> | ||
| <gml:coord><gml:X>-1</gml:X><gml:Y>-1</gml:Y></gml:coord> | ||
| <gml:coord><gml:X>5.58042226487524</gml:X><gml:Y>4.119769673704415</gml:Y></gml:coord> | ||
| </gml:Box> | ||
| </gml:boundedBy> | ||
|
|
||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.1"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>-1,-1 0.1,-1.0</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.1"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>0.1,-1.0 1,-1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.2"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3,1 4.1,1.0</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.2"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>4.1,1.0 5,1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.2"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.02418426103647,2.4147792706334 5.00538358886158,1.3149399484023</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.2"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.00538358886158,1.3149399484023 5,1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.3"> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>2,0 2.0,1.1</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>2.0,1.1 2,2 2.2,2.0</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>2.2,2.0 3,2 3.0,2.3</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3.0,2.3 3,3</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>2.94433781190019,4.04721689059501 4.04388044198829,4.07893446646294</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>4.04388044198829,4.07893446646294 5.1434230720764,4.11065204233086</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.1434230720764,4.11065204233086 5.4595009596929,4.11976967370441</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3,3 4.09976658596272,2.97734042366024</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>4.09976658596272,2.97734042366024 5.19953317192545,2.95468084732049</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| <gml:featureMember> | ||
| <ogr:split_multiline_by_length fid="lines.4"> | ||
| <ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.19953317192545,2.95468084732049 5.58042226487524,2.9468330134357</gml:coordinates></gml:LineString></ogr:geometryProperty> | ||
| </ogr:split_multiline_by_length> | ||
| </gml:featureMember> | ||
| </ogr:FeatureCollection> |
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python/plugins/processing/tests/testdata/expected/split_multiline_by_length.xsd
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| <?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="split_multiline_by_length" type="ogr:split_multiline_by_length_Type" substitutionGroup="gml:_Feature"/> | ||
| <xs:complexType name="split_multiline_by_length_Type"> | ||
| <xs:complexContent> | ||
| <xs:extension base="gml:AbstractFeatureType"> | ||
| <xs:sequence> | ||
| <xs:element name="geometryProperty" type="gml:LineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/> | ||
| </xs:sequence> | ||
| </xs:extension> | ||
| </xs:complexContent> | ||
| </xs:complexType> | ||
| </xs:schema> |
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