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nyalldawsonnyalldawson
committedAug 10, 2016
[FEATURE][processing] New algorithm for offsetting lines
·
ltr-3_40final-3_0_0
1 parent 7ee55a7 commit 82f4a82

12 files changed

+462
-1
lines changed
 

‎python/plugins/processing/algs/help/qgis.yaml

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@@ -257,6 +257,15 @@ qgis:numberofuniquevaluesinclasses: >
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The resulting layer contains the same features as the input layer, but with an additional attribute containing the count of unique values for that class.
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qgis:offsetline: >
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This algorithm offsets lines by a specified distance. Positive distances will offset lines to the left, and negative distances will offset to the right of lines.
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The segments parameter controls the number of line segments to use to approximate a quarter circle when creating rounded offsets.
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The join style parameter specifies whether round, mitre or beveled joins should be used when offseting corners in a line.
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The mitre limit parameter is only applicable for mitre join styles, and controls the maximum distance from the offset curve to use when creating a mitred join.
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qgis:orientedminimumboundingbox: >
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This algorithm takes a vector layer and generate a new one with the minimum rectangle that covers all the input features.
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‎python/plugins/processing/algs/qgis/OffsetLine.py

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# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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OffsetLine.py
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--------------
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Date : July 2016
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Copyright : (C) 2016 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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* 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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"""
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__author__ = 'Nyall Dawson'
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__date__ = 'July 2016'
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__copyright__ = '(C) 2016, Nyall Dawson'
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# This will get replaced with a git SHA1 when you do a git archive323
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__revision__ = '$Format:%H$'
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import os
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from qgis.core import QgsGeometry, QgsWkbTypes
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from qgis.PyQt.QtGui import QIcon
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from processing.core.GeoAlgorithm import GeoAlgorithm
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from processing.core.GeoAlgorithmExecutionException import GeoAlgorithmExecutionException
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from processing.core.parameters import ParameterVector, ParameterSelection, ParameterNumber
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from processing.core.outputs import OutputVector
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from processing.tools import dataobjects, vector
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class OffsetLine(GeoAlgorithm):
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INPUT_LAYER = 'INPUT_LAYER'
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OUTPUT_LAYER = 'OUTPUT_LAYER'
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DISTANCE = 'DISTANCE'
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SEGMENTS = 'SEGMENTS'
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JOIN_STYLE = 'JOIN_STYLE'
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MITRE_LIMIT = 'MITRE_LIMIT'
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def defineCharacteristics(self):
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self.name, self.i18n_name = self.trAlgorithm('Offset line')
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self.group, self.i18n_group = self.trAlgorithm('Vector geometry tools')
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self.addParameter(ParameterVector(self.INPUT_LAYER,
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self.tr('Input layer'), [ParameterVector.VECTOR_TYPE_LINE]))
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self.addParameter(ParameterNumber(self.DISTANCE,
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self.tr('Distance'), default=10.0))
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self.addParameter(ParameterNumber(self.SEGMENTS,
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self.tr('Segments'), 1, default=8))
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self.join_styles = [self.tr('Round'),
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'Mitre',
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'Bevel']
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self.addParameter(ParameterSelection(
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self.JOIN_STYLE,
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self.tr('Join style'),
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self.join_styles))
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self.addParameter(ParameterNumber(self.MITRE_LIMIT,
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self.tr('Mitre limit'), 1, default=2))
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self.addOutput(OutputVector(self.OUTPUT_LAYER, self.tr('Offset')))
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def processAlgorithm(self, progress):
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layer = dataobjects.getObjectFromUri(
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self.getParameterValue(self.INPUT_LAYER))
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writer = self.getOutputFromName(
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self.OUTPUT_LAYER).getVectorWriter(
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layer.fields().toList(),
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QgsWkbTypes.LineString,
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layer.crs())
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distance = self.getParameterValue(self.DISTANCE)
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segments = int(self.getParameterValue(self.SEGMENTS))
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join_style = self.getParameterValue(self.JOIN_STYLE) + 1
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miter_limit = self.getParameterValue(self.MITRE_LIMIT)
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features = vector.features(layer)
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total = 100.0 / len(features)
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for current, input_feature in enumerate(features):
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output_feature = input_feature
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input_geometry = input_feature.geometry()
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if input_geometry:
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output_geometry = input_geometry.offsetCurve(distance, segments, join_style, miter_limit)
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if not output_geometry:
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raise GeoAlgorithmExecutionException(
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self.tr('Error calculating line offset'))
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output_feature.setGeometry(output_geometry)
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writer.addFeature(output_feature)
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progress.setPercentage(int(current * total))
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del writer

‎python/plugins/processing/algs/qgis/QGISAlgorithmProvider.py

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@@ -150,6 +150,7 @@
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from .BoundingBox import BoundingBox
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from .Boundary import Boundary
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from .PointOnSurface import PointOnSurface
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from .OffsetLine import OffsetLine
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pluginPath = os.path.normpath(os.path.join(
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os.path.split(os.path.dirname(__file__))[0], os.pardir))
@@ -202,7 +203,8 @@ def __init__(self):
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ReverseLineDirection(), SpatialIndex(), DefineProjection(),
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RectanglesOvalsDiamondsVariable(),
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RectanglesOvalsDiamondsFixed(), MergeLines(),
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BoundingBox(), Boundary(), PointOnSurface()
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BoundingBox(), Boundary(), PointOnSurface(),
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OffsetLine()
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]
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if hasMatplotlib:

‎python/plugins/processing/tests/testdata/expected/line_offset_bevel.gml

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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/ line_offset_bevel.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>-2.292893218813453</gml:Y></gml:coord>
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<gml:coord><gml:X>10.29289321881345</gml:X><gml:Y>5.707106781186548</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:line_offset_bevel fid="lines.0">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>6,3 8,3 8.292893218813452,3.707106781186547 10.292893218813452,5.707106781186548</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_bevel>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_bevel fid="lines.1">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>-1,0 1,0</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_bevel>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_bevel fid="lines.2">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>1,0 1,2 2,3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_bevel>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_bevel fid="lines.3">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3,2 5,2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_bevel>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_bevel fid="lines.4">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>7,-2 10,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_bevel>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_bevel fid="lines.5">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.292893218813452,-2.292893218813453 9.292893218813452,1.707106781186547</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_bevel>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_bevel fid="lines.6">
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</ogr:line_offset_bevel>
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</gml:featureMember>
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</ogr:FeatureCollection>

‎python/plugins/processing/tests/testdata/expected/line_offset_bevel.xsd

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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="line_offset_bevel" type="ogr:line_offset_bevel_Type" substitutionGroup="gml:_Feature"/>
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<xs:complexType name="line_offset_bevel_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:LineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
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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>

‎python/plugins/processing/tests/testdata/expected/line_offset_mitre.gml

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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/ line_offset_mitre.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>-2.292893218813453</gml:Y></gml:coord>
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<gml:coord><gml:X>10.29289321881345</gml:X><gml:Y>5.707106781186548</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:line_offset_mitre fid="lines.0">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>6,3 8,3 8.0,3.414213562373094 10.292893218813452,5.707106781186548</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_mitre>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_mitre fid="lines.1">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>-1,0 1,0</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_mitre>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_mitre fid="lines.2">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>1,0 1,3 2,3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_mitre>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_mitre fid="lines.3">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3,2 5,2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_mitre>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_mitre fid="lines.4">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>7,-2 10,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_mitre>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_mitre fid="lines.5">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.292893218813452,-2.292893218813453 9.292893218813452,1.707106781186547</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_mitre>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_mitre fid="lines.6">
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</ogr:line_offset_mitre>
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</gml:featureMember>
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</ogr:FeatureCollection>

‎python/plugins/processing/tests/testdata/expected/line_offset_mitre.xsd

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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="line_offset_mitre" type="ogr:line_offset_mitre_Type" substitutionGroup="gml:_Feature"/>
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<xs:complexType name="line_offset_mitre_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:LineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
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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>

‎python/plugins/processing/tests/testdata/expected/line_offset_round_negative.gml

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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/ line_offset_round_negative.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>-4</gml:Y></gml:coord>
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<gml:coord><gml:X>11.70710678118655</gml:X><gml:Y>4.292893218813452</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:line_offset_round_negative fid="lines.0">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>11.707106781186548,4.292893218813452 10.0,2.585786437626905 10,2 9.98078528040323,1.804909677983872 9.923879532511286,1.61731656763491 9.831469612302543,1.444429766980398 9.707106781186548,1.292893218813453 9.555570233019605,1.168530387697455 9.38268343236509,1.076120467488713 9.195090322016128,1.01921471959677 9,1 6,1</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_negative fid="lines.1">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>1,-2 -1,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_negative fid="lines.2">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>4,3 4,2 3.98078528040323,1.804909677983872 3.923879532511287,1.61731656763491 3.831469612302545,1.444429766980398 3.707106781186547,1.292893218813453 3.555570233019602,1.168530387697455 3.38268343236509,1.076120467488713 3.356009692300209,1.068029076900628 3.195090322016128,1.01921471959677 3,1 3,0</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_negative fid="lines.3">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5,0 3,0</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_negative fid="lines.4">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>10,-4 7,-4</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_negative fid="lines.5">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>10.707106781186548,0.292893218813453 6.707106781186548,-3.707106781186547</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_negative fid="lines.6">
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</ogr:line_offset_round_negative>
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</gml:featureMember>
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</ogr:FeatureCollection>

‎python/plugins/processing/tests/testdata/expected/line_offset_round_negative.xsd

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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="line_offset_round_negative" type="ogr:line_offset_round_negative_Type" substitutionGroup="gml:_Feature"/>
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<xs:complexType name="line_offset_round_negative_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:LineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
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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>

‎python/plugins/processing/tests/testdata/expected/line_offset_round_positive.gml

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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/ line_offset_round_positive.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>-2.292893218813453</gml:Y></gml:coord>
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<gml:coord><gml:X>10.29289321881345</gml:X><gml:Y>5.707106781186548</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:line_offset_round_positive fid="lines.0">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>6,3 8,3 8.01921471959677,3.195090322016128 8.076120467488714,3.38268343236509 8.168530387697455,3.555570233019602 8.292893218813452,3.707106781186547 10.292893218813452,5.707106781186548</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_positive fid="lines.1">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>-1,0 1,0</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_positive fid="lines.2">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>1,0 1,2 1.01921471959677,2.195090322016128 1.076120467488713,2.38268343236509 1.168530387697455,2.555570233019602 1.292893218813453,2.707106781186547 1.444429766980398,2.831469612302545 1.61731656763491,2.923879532511287 1.804909677983872,2.98078528040323 2,3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_positive fid="lines.3">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>3,2 5,2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_positive fid="lines.4">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>7,-2 10,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_positive fid="lines.5">
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<ogr:geometryProperty><gml:LineString srsName="EPSG:4326"><gml:coordinates>5.292893218813452,-2.292893218813453 9.292893218813452,1.707106781186547</gml:coordinates></gml:LineString></ogr:geometryProperty>
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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<gml:featureMember>
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<ogr:line_offset_round_positive fid="lines.6">
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</ogr:line_offset_round_positive>
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</gml:featureMember>
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</ogr:FeatureCollection>

‎python/plugins/processing/tests/testdata/expected/line_offset_round_positive.xsd

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Original file line numberDiff line numberDiff line change
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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">
3+
<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
4+
<xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
5+
<xs:complexType name="FeatureCollectionType">
6+
<xs:complexContent>
7+
<xs:extension base="gml:AbstractFeatureCollectionType">
8+
<xs:attribute name="lockId" type="xs:string" use="optional"/>
9+
<xs:attribute name="scope" type="xs:string" use="optional"/>
10+
</xs:extension>
11+
</xs:complexContent>
12+
</xs:complexType>
13+
<xs:element name="line_offset_round_positive" type="ogr:line_offset_round_positive_Type" substitutionGroup="gml:_Feature"/>
14+
<xs:complexType name="line_offset_round_positive_Type">
15+
<xs:complexContent>
16+
<xs:extension base="gml:AbstractFeatureType">
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<xs:sequence>
18+
<xs:element name="geometryProperty" type="gml:LineStringPropertyType" nillable="true" minOccurs="0" maxOccurs="1"/>
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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>

‎python/plugins/processing/tests/testdata/qgis_algorithm_tests.yaml

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Original file line numberDiff line numberDiff line change
@@ -582,3 +582,63 @@ tests:
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OUTPUT_LAYER:
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name: expected/point_on_line.gml
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type: vector
585+
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- algorithm: qgis:offsetline
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name: Offset line positive
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params:
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DISTANCE: 1.0
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INPUT_LAYER:
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name: lines.gml
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type: vector
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JOIN_STYLE: '0'
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MITRE_LIMIT: 2
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SEGMENTS: 8
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results:
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OUTPUT_LAYER:
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name: expected/line_offset_round_positive.gml
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type: vector
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- algorithm: qgis:offsetline
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name: Offset line negative
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params:
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DISTANCE: -1.0
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INPUT_LAYER:
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name: lines.gml
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type: vector
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JOIN_STYLE: '0'
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MITRE_LIMIT: 2
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SEGMENTS: 8
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results:
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OUTPUT_LAYER:
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name: expected/line_offset_round_negative.gml
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type: vector
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- algorithm: qgis:offsetline
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name: Offset line mitre
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params:
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DISTANCE: 1.0
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INPUT_LAYER:
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name: lines.gml
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type: vector
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JOIN_STYLE: '1'
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MITRE_LIMIT: 2
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SEGMENTS: 4
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results:
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OUTPUT_LAYER:
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name: expected/line_offset_mitre.gml
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type: vector
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- algorithm: qgis:offsetline
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name: Offset line bevel
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params:
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DISTANCE: 1.0
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INPUT_LAYER:
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name: lines.gml
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type: vector
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JOIN_STYLE: '2'
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MITRE_LIMIT: 2
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SEGMENTS: 8
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results:
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OUTPUT_LAYER:
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name: expected/line_offset_bevel.gml
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type: vector

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