VertexDistanceChecker

VertexDistanceChecker is a QGIS plugin that identifies line segments between consecutive vertices shorter than a user-defined threshold, helping detect oversampled geometry or digitization noise in line features.

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Features

• Analyze any line layer in your QGIS project.
• User-defined minimum length threshold.
• Option to check only selected features.
• Visual feedback of flagged segments via rubber bands.
• List and zoom to flagged segments in a dockable panel.
• Export flagged segments' midpoints to a Shapefile for reporting or further analysis.

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How It Works

1. Activate the plugin via the toolbar or plugin menu.
2. Choose a line layer to analyze.
3. Enter the minimum allowed segment length.
4. (Optional) Restrict analysis to selected features only.
5. View results in a dockable panel, with distance values and zoom capabilities.
6. Export results to a point Shapefile if needed.

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Installation

1. Clone or download this repository:

   git clone https://github.com/Consortis-Geospatial/VertexDistanceChecker.git

2. Copy the folder to your QGIS plugin directory:

• Linux: ~/.local/share/QGIS/QGIS3/profiles/default/python/plugins/
• Windows: %APPDATA%\QGIS\QGIS3\profiles\default\python\plugins\

3. Open QGIS and enable the plugin via Plugins > Manage and Install Plugins.

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Screenshot

Coming Soon...

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Developer Notes

• Written in Python using the QGIS PyQt and PyQGIS.

• Uses a custom dock widget to display flagged vertex pairs.

• Midpoint geometry exported in EPSG:2100 (can be modified as needed).

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Support and Contributions

• Homepage: https://github.com/Consortis-Geospatial
• Issue Tracker: https://github.com/Consortis-Geospatial/VertexDistanceChecker/issues
• Author: Gkaravelis Andreas - Consortis Geospatial
• Email: gkaravelis@consortis.gr
• Repository: https://github.com/Consortis-Geospatial/VertexDistanceChecker

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License

This plugin is released under the GPL-3.0 license