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QGIS Python Plugins Repository

Spatial Design Network Analysis

(12) votes 

Allows use of the sDNA toolbox from QGIS

Allows use of the sDNA toolbox from QGIS.
sDNA version 3.1 or above must be installed first from http://www.cardiff.ac.uk/sdna
sDNA is a spatial network analysis tool with general applicability, but particularly suited to modelling urban networks. Standard sDNA currently calculates various measures of network density, gravity models, floating catchment, closeness, betweenness, convex hull and severance statistics. These can be based on different analysis metrics (Angular, Euclidean, Custom). Additional tools allow network preparation, statistical learning and prediction based on sDNA models. Analyses can be weighted or unweighted, and weights can be applied per polyline, link or unit length.
An advanced version called sDNA+ is also available which can use arbitrary metrics from a user formula (hybrid metrics) as well as having presets for pedestrian, cyclist and vehicle use, and the ability to output analysis geometries (network radii, geodesics, convex hulls; one-to-one, one-to-many, one-to-all or all-to-all). Version 3.1 adds OD Matrix input and Skim Matrix output.
Development of this plugin was funded by the ESRC Impact Accelerator grant "sDNA for all". The principal investigator was Alain Chiaradia and the co-investigator Crispin Cooper, based at Cardiff University department of Geography and Planning and the Sustainable Places Research Institute.

Author
Crispin Cooper
Maintainer
crispincooper
Tags
urban design options appraisalsdnanetworkprocessinganalysisevaluation
Plugin home page
http://www.cardiff.ac.uk/sdna
Tracker
Browse and report bugs
Code repository
https://github.com/fiftysevendegreesofrad/sdna_qgis_plugin
Latest stable version
4.0.0
Latest experimental version:
3.1.0
Version Experimental Minimum QGIS version Downloads Uploaded by Date
4.0.0 no 2.0.0 348 crispincooper April 12, 2019, 7:57 a.m.
3.1.1 no 2.0.0 10155 crispincooper Aug. 16, 2016, 10:56 a.m.
3.1.0 yes 2.0.0 1828 crispincooper March 11, 2016, 11:20 a.m.
3.0.1 yes 2.0.0 1078 crispincooper Jan. 20, 2016, 8:32 a.m.

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