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Duplicating road patterns in South African informal settlements using procedural techniques

Glass, Kevin, Morkel, Chantelle and Bangay, Shaun 2006, Duplicating road patterns in South African informal settlements using procedural techniques, in Afrigraph '06 : Proceedings of the 4th international conference on computer graphics, virtual reality, visualisation and interaction in Africa, Association for Computer Machinery, New York, N.Y., pp. 161-169, doi: 10.1145/1108590.1108616.

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Title Duplicating road patterns in South African informal settlements using procedural techniques
Author(s) Glass, Kevin
Morkel, Chantelle
Bangay, Shaun
Conference name International conference on computer graphics, virtual reality, visualisation and interaction in Africa (4th : 2006 : Cape Town, South Africa)
Conference location Cape Town, South Africa
Conference dates 25-27 Jan. 2006
Title of proceedings Afrigraph '06 : Proceedings of the 4th international conference on computer graphics, virtual reality, visualisation and interaction in Africa
Editor(s) Spencer, Stephen N.
Publication date 2006
Conference series International Conference on Computer Graphics, Virtual Reality, Visualisation and Interaction in Africa
Start page 161
End page 169
Publisher Association for Computer Machinery
Place of publication New York, N.Y.
Keyword(s) procedural modeling
city modeling
informal settlement
Voronoi
subdivision
L-systems
Summary The formation of informal settlements in and around urban complexes has largely been ignored in the context of procedural city modeling. However, many cities in South Africa and globally can attest to the presence of such settlements. This paper analyses the phenomenon of informal settlements from a procedural modeling perspective. Aerial photography from two South African urban complexes, namely Johannesburg and Cape Town is used as a basis for the extraction of various features that distinguish different types of settlements. In particular, the road patterns which have formed within such settlements are analysed, and various procedural techniques proposed (including Voronoi diagrams, subdivision and L-systems) to replicate the identified features. A qualitative assessment of the procedural techniques is provided, and the most suitable combination of techniques identified for unstructured and structured settlements. In particular it is found that a combination of Voronoi diagrams and subdivision provides the closest match to unstructured informal settlements. A combination of L-systems, Voronoi diagrams and subdivision is found to produce the closest pattern to a structured informal settlement.
ISBN 1595932887
Language eng
DOI 10.1145/1108590.1108616
Field of Research 080103 Computer Graphics
Socio Economic Objective 890299 Computer Software and Services not elsewhere classified
HERDC Research category E1.1 Full written paper - refereed
Copyright notice ©2006, ACM
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039195

Document type: Conference Paper
Collection: School of Information Technology
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