"Frozen" layers are NOT regen'ed, so we don't know where the object is, so we can't clip the viewport. "Off" layers are still regen'ed, just not shown, so they are fine for clip boundary objects. The downside of this was the object HAS to be "elaborated" (regen'ed) in order for there to be a boundary to clip the viewport. Instead, we opted for a much more robust clipping mechanism that used any closed AutoCAD object (plines with curves, regions, circles, ellipses), and allows full grip editting of the boundary. Hi guys, as one of the original two authors of non-rectangular viewports (back in AutoCAD 2000, along with Layouts), I can answer the "what is causing this" question.īack in '98, when designing this, we considered a scheme that would have allowed just circles or polyline straight segments for viewport clipping - in that case we would have stored the boundary information with the viewport, and frozen layers would not have been a problem.
0 kommentar(er)
