Procedural skeletons

Ilčík, Martin; Fiedler, S.; Purgathofer, Werner; Wimmer, Michael

doi:10.1145/1925059.1925087

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Rautenbach et al (2015a) investigated the use of procedural modelling for generating a 3D model of an informal settlement in South Africa. Procedural modelling employs algorithms to automatically generate 3D objects and construct 3D models (Ilčík et al, 2010;Müller et al, 2006). This is a suitable alternative for modelling South African informal settlements, as the majority of the settlements are composed of numerous structures of more or less the same shape and size (i.e.…”

Section: Development Of 3d Modelsmentioning

confidence: 99%

Investigating the Use of 3d Geovisualizations for Urban Design in Informal Settlement Upgrading in South Africa

Rautenbach¹,

Coetzee²,

Çöltekin³

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Informal settlements are a common occurrence in South Africa, and to improve in-situ circumstances of communities living in informal settlements, upgrades and urban design processes are necessary. Spatial data and maps are essential throughout these processes to understand the current environment, plan new developments, and communicate the planned developments. All stakeholders need to understand maps to actively participate in the process. However, previous research demonstrated that map literacy was relatively low for many planning professionals in South Africa, which might hinder effective planning. Because 3D visualizations resemble the real environment more than traditional maps, many researchers posited that they would be easier to interpret. Thus, our goal is to investigate the effectiveness of 3D geovisualizations for urban design in informal settlement upgrading in South Africa. We consider all involved processes: 3D modelling, visualization design, and cognitive processes during map reading. We found that procedural modelling is a feasible alternative to time-consuming manual modelling, and can produce high quality models. When investigating the visualization design, the visual characteristics of 3D models and relevance of a subset of visual variables for urban design activities of informal settlement upgrades were qualitatively assessed. The results of three qualitative user experiments contributed to understanding the impact of various levels of complexity in 3D city models and map literacy of future geoinformatics and planning professionals when using 2D maps and 3D models. The research results can assist planners in designing suitable 3D models that can be used throughout all phases of the process.

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Section: Development Of 3d Modelsmentioning

confidence: 99%

Investigating the Use of 3d Geovisualizations for Urban Design in Informal Settlement Upgrading in South Africa

Rautenbach¹,

Coetzee²,

Çöltekin³

2016

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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“…Algorithms are used sequentially to generate 3D objects in order to generate mass 3D models. 23,24 Through procedural modelling, an intricate object is created by iteratively applying a rule to each resulting component of the object. 25 An additional benefit of procedural modelling is that it can be used to automatically prepare 3D models from spatial data (e.g.…”

Section: Introductionmentioning

confidence: 99%

Evaluating procedural modelling for 3D models of informal settlements in urban design activities

Rautenbach¹,

Bevis²,

Coetzee³

et al. 2015

S. Afr. J. Sci.

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HOW TO CITE:Rautenbach V, Bevis Y, Coetzee S, Combrinck C. Evaluating procedural modelling for 3D models of informal settlements in urban design activities. S Afr J Sci. 2015;111(11/12), Art. #2015-0100, 10 pages. http://dx.doi.org/10.17159/ sajs.2015/20150100Three-dimensional (3D) modelling and visualisation is one of the fastest growing application fields in geographic information science. 3D city models are being researched extensively for a variety of purposes and in various domains, including urban design, disaster management, education and computer gaming. These models typically depict urban business districts (downtown) or suburban residential areas. Despite informal settlements being a prevailing feature of many cities in developing countries, 3D models of informal settlements are virtually non-existent. 3D models of informal settlements could be useful in various ways, e.g. to gather information about the current environment in the informal settlements, to design upgrades, to communicate these and to educate inhabitants about environmental challenges. In this article, we described the development of a 3D model of the Slovo Park informal settlement in the City of Johannesburg Metropolitan Municipality, South Africa. Instead of using time-consuming traditional manual methods, we followed the procedural modelling technique. Visualisation characteristics of 3D models of informal settlements were described and the importance of each characteristic in urban design activities for informal settlement upgrades was assessed. Next, the visualisation characteristics of the Slovo Park model were evaluated. The results of the evaluation showed that the 3D model produced by the procedural modelling technique is suitable for urban design activities in informal settlements. The visualisation characteristics and their assessment are also useful as guidelines for developing 3D models of informal settlements. In future, we plan to empirically test the use of such 3D models in urban design projects in informal settlements.

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Challenges and Ideas in Procedural Modeling of Interiors

Ilčík

Wimmer

2013

Eurographics Workshop on Urban Data Modelling and Visualisation

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Procedural skeletons

Cited by 3 publications

References 19 publications

Investigating the Use of 3d Geovisualizations for Urban Design in Informal Settlement Upgrading in South Africa

Investigating the Use of 3d Geovisualizations for Urban Design in Informal Settlement Upgrading in South Africa

Evaluating procedural modelling for 3D models of informal settlements in urban design activities

Challenges and Ideas in Procedural Modeling of Interiors

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