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From: Peter Clifton <peter.clifton@cl...> - 2013-02-18 00:50:50
(The back-trace would at least tell me what code-path the render is
taking when it falls over. That would identify exactly what type of
geometry it is processing at the time).
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Polygons don't sufficiently clear circular items
Status in PCB: Printed Circuit Board CAD package:
The correction factor POLY_CIRC_RADIUS_ADJ is not applied to the first
and last points in all circular sections.
The results in inadequate clearance to the right of vias & pins.
Line and arc clearances are similarly inadequate.
Attached is a simple example. To repeat:
1) Move the mark the centre of the via
2) Turn off the grid
3) Go to the polygon edge to the right of the via
4) Zoom in LOTS
5) Inspect the distance to the polygon at just above and below the "3 o'clock" position
Clearance in this example is supposed to be 0.35mm (0.25mm via radius
+ 0.1mm clearance). However 0.3494mm is observable.
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