...Ye Li; Matthew C. Frank Using the rasterization process above and the relations in Sec. 4 , the axes of rotation for a CAD model can be computed. Each 2D visibility great arc (GA ij ) corresponds to an area for feasible axes of rotation on the unit sphere (AR ij is used to represent...

.... In this paper, we consider a problem that arises in automating this process— visibility to the surface of a model that is rotated about a fourth axis. Our approach involves slicing the computer-aided design (CAD) model orthogonal to the axis of rotation. The slice geometry is used to calculate two-dimensional...

... for productivity of multistation assembly processes. In order to shorten calibration lead time, the number of necessary setups, determined by visibility analysis, needs to be minimized. This paper presents a screen space transformation-based visibility analysis that allows minimizing the number of setups...

... certification procedure is very time-consuming and is prone to error. This paper presents an algorithm for the optimal setup and placement of theodolite systems based on visibility analysis and synthesis. For a given tooling fixture, the visibility map is introduced to represent the set of potential measurement...

...Ming-En Wang; Lin-Lin Chen; Tony C. Woo The visibility of a surface has wide applications in manufacturing, where accessibility of the workpiece to the processing agent is of critical importance. A surface is visible to a direction d if for every point on the surface a line-of-sight can...