Generating textures on arbitrary surfaces using reaction-diffusion
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Robot Motion Planning
A two-dimensional interpolation function for irregularly-spaced data
ACM '68 Proceedings of the 1968 23rd ACM national conference
Tool-adaptive offset paths on triangular mesh workpiece surfaces
Computer-Aided Design
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The aim of planning path-oriented spray-coating processes is to find a time-dependent continuous sequence of spray gun configurations so that a coating of desired thickness is achieved when executing the sequence. A novel approach to solving the planning task, called ''geometry-last'', is outlined which leads to a more general gun configuration cover problem. The gun configuration cover problem is to find a finite set of spray gun configurations, which minimizes the error between a target coating and the coating induced by simultaneously activating those configurations. A suitable objective function for gun configuration covers is defined, and algorithmic solutions for the optimization problem are presented, including speed-up by hierarchization and use of graphics hardware. An experimental evaluation shows that good approximations of the desired coatings can be achieved within reasonable computing times. In contrast to other approaches, geometry-last gains additional flexibility required to find complex paths for free-form workpieces.