Package: segment-reshape-qgis-plugin
segment-reshape-qgis-pluginQGIS plugin with a map tool to reshape a continuous segment topogically.PluginSegment reshape toolplugin is available from the QGIS plugin repository. It provides a simple toolbar with one action. Action will activate a segment reshape map tool, with which a common segment portion can be clicked and a new segment can be digitized. After digitizing the features are edited to match the new common segment.LibraryTo use this library as an external dependency in your plugin or other Python code, install it usingpip install segment-reshape-qgis-pluginand use imports from the providedsegment_reshapepackage. If used in a plugin, library must be installed in the runtime QGIS environment or useqgis-plugin-dev-toolsto bundle your plugin with runtime dependencies included.API documentationSimple use case can be seen inintegration test.Finding common segmentsegment_reshape.topology.find_related.find_segment_to_reshapecalculates the line segment between features that share equal sequence of vertices along their edges at the trigger location. By default all QGIS project layers are used to find connected features if topological editing is enabled. Custom list of layers can also be passed as an argument.Return values are:Common segment (Noneif not found)Features that share the common segment (and relevant vertex indices)Features that share the end points of the common segment (and relevant vertex index)Editing geometries partiallysegment_reshape.geometry.reshape.make_reshape_editsreshapes the provided common parts and edges, so that common part shared vertex indices are replaced and edges are moved to match the reshaped geometry. Output offind_segment_to_reshape(common parts & edges) can be used as input for this function.Map toolMap tool is found insegment_reshape.map_tool.segment_reshape_tool.SegmentReshapeTool, it can be subclassed or used as is in custom plugins.The Map Tool should be taken into use as follows:fromsegment_reshape.map_tool.segment_reshape_toolimport(SegmentReshapeTool,SegmentReshapeToolHandler,)classSegmentReshapePlugin(QObject):def__init__(self,iface)->None:super().__init__(parent=None)self.iface=ifaceself.segment_reshape_tool=SegmentReshapeTool(iface.mapCanvas())definitGui(self)->None:self.segment_reshape_tool_action=QAction(QIcon(resources_path("icons/segment_reshape.svg")),self.tr("Reshape common segment"),self.iface.mainWindow(),)self.segment_reshape_tool_handler=SegmentReshapeToolHandler(self.segment_reshape_tool,self.segment_reshape_tool_action)self.iface.registerMapToolHandler(self.segment_reshape_tool_handler)self.toolbar=iface.addToolBar(self.tr("Segment reshape toolbar"),)self.toolbar.addAction(self.segment_reshape_tool_action)Development of segment-reshape-qgis-pluginSeedevelopment readme.License & copyrightLicensed under GNU GPL v3.0.Copyright (C) 2022National Land Survey of Finland.CHANGELOG0.1.6- 2023-09-06update author email0.1.5- 2023-08-16Fix: Add support for reshaping closed linestringsFix: Add support for reshaping closed linestring partially, when the reshaped segment falls on the wraparound location0.1.4- 2023-04-14Feature: Change the mouse cursor to the wait cursor when finding common segment os editing is in progressPerformance improvments. Finding a common segment should now be a magnitude faster with large geometries.0.1.3- 2023-03-23Feature: Digitizing the new geometry for a segment behaves now as the native QGIS digitizing tools. It supports etc. snapping, tracing and advanced cad tools.Feature: Map tool button is enabled only when a line or polygon layer is active. This is implemented through MapToolHandler which ensures that the tool behaves like rest of the map tools. This means also that the tool can be deactivated only by selecting another map tool.Fix: Color of the start point indicator line was changed to grey to make difference to the digitized line.0.1.2- 2023-02-23Feature: Set z coordinate values of the reshaped geometry to QGIS's default z coordinate value instead of NaN0.1.1- 2023-01-17Fix: Correcly move multiple edges for same feature.0.1.0- 2022-12-14Feature: Add support for key commands (backspace and esc) in vertex editing.Fix: In cases where segment was split from the middle the start and end parts of the line is correctly merged back together.Fix: Geometry comparison was fixed so that only common vertices between geometries are taken into account. Before edges were split if an edge crossed other edge also from non vertex point.Feature: Preserve source feature z coordinate for calculated segment.0.0.3- 2022-11-17Fix: Fix missing toolbar icon by including resource files in setuptools build.0.0.2- 2022-11-09Feature: Implement a QGIS plugin with a simple toolbar.Feature: Add map tool for selecting and drawing the reshape geometry.Feature: Support complex calculation for the common segment.Feature: Add snapping support when drawing the reshape geometry.0.0.1- 2022-10-28Initial release: API for finding common segments and making reshape edits.