Title:	Straight Skeleton Computation Optimized for Roof Model Generation
Authors:	Kenichi, Sugihara
Citation:	WSCG 2019: full papers proceedings: 27. International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, p. 101-109.
Issue Date:	2019
Publisher:	Václav Skala - UNION Agency
Document type:	konferenční příspěvek conferenceObject
URI:	http://hdl.handle.net/11025/35614
ISBN:	978-80-86943-37-4 (CD/-ROM)
ISSN:	2464–4617 (print) 2464-4625 (CD/DVD)
Keywords:	automatické generování;3D model budovy;rovná kostra;budování stopy;GIS
Keywords in different language:	automatic generation;3D building model;straight skeleton;building footprint;GIS
Abstract in different language:	3D building models with roofs are important in several fields, such as urban planning and BIM (Building Information Model). However, enormous time and labor are required to create these 3D models. In order to automate laborious steps, a GIS and CG integrated system is proposed for the automatic generation of 3D building models, based on building polygons (building footprints) on digital maps. The generation is implemented through straight skeleton computation, in which three events (‘Edge’ and ‘Split’, ‘Vertex’ events) were proposed. In the computation process, usually three edges propagate into a node. Often it causes an acute angle shape that is not appropriate for roof boards. To avoid the inappropriate shape, in this paper, methodologies are proposed for adding ‘Line segment’ events besides the conventional events, and monotone polygon nodes sorting.
Rights:	© Václav Skala - UNION Agency
Appears in Collections:	WSCG 2019: Full Papers Proceedings

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