Abstract
This paper presents a novel constructive approach to sequentially tidying up 2D online freehand sketches for further 3D interpretation in a conceptual design system. Upon receiving a sketch stroke, the system first identifies it as a 2D primitive and then automatically infers its 2D geometric constraints related to previous 2D geometry (if any). Based on recognized 2D constraints, the identified geometry will be modified accordingly to meet its constraints. The modification is realized in one or two sequent geometric constructions in consistence with its degrees of freedom. This method can produce 2D configurations without iterative procedures to solve constraint equations. It is simple and easy to use for a real-time application. Several examples are tested and discussed.
| Original language | English |
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| Title of host publication | 14th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2006, WSCG'2006 - In Co-operation with EUROGRAPHICS, Full Papers Proceedings |
| Publisher | University of West Bohemia |
| Pages | 271-278 |
| Number of pages | 8 |
| ISBN (Print) | 8086943038, 9788086943039 |
| Publication status | Published - 1 Feb 2006 |
| Event | 14th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2006, WSCG'2006 - In Co-operation with EUROGRAPHICS - Plzen, Czech Republic Duration: 31 Jan 2006 → 2 Feb 2006 |
Conference
| Conference | 14th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2006, WSCG'2006 - In Co-operation with EUROGRAPHICS |
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| Country/Territory | Czech Republic |
| City | Plzen |
| Period | 31/01/06 → 2/02/06 |
Keywords
- Computer-human interface
- Geometric constraints solver
- Sketch-based design