Hi, I am trying to get better control over line thickness with Ortho and Perspective lenses. I have a CADCAM application that displays complex models constructed of lines. In Away3D the lines are represented as Segments in SegmentSets. So far so good.
I can display these models in multiple views accessed via tabs. There is a perspective view that uses PerspectiveLens, and views like Front, Top, and Right that use the OrthographicLens.
These views can be manipulated and zoomed. Zooming in Perspective is by moving the camera closer and further from the model. Zooming in Ortho views is by changing PerspectiveHeight.
Now here is my problem. Zooming in Ortho results in unreasonably large lines. Ideally, I’d love a way to keep the line thickness constant regardless of zooming. Failing that, I need to choose parameters that keep the lines manageably small across a pretty wide zooming range. I have not been able to find such parameters. The lines get way to fat even if I zoom fairly conservatively in an Ortho view.
How can I fix this? Is there some way to keep constant line thickness no matter what the zoom conditions?
Help appreciated,
Bob Warfield
http://www.cnccookbook.com
