Hi list,
in src/gerbv.h we have...
#define APERTURE_PARAMETERS_MAX 102
the reason for this is stated in a comment above it
/*
* Maximum number of aperture parameters is set by the outline aperture
* macro. There (p. 28) is defined up to 50 points in polygon.
* So 50 points with x and y plus two for holding extra data gives...
*/
I have a gerber set which uses polygons with many more points than 50
and (current git version) of gerbv complained and drew them incorrectly.
In looking at what I believe is the current gerber specification:
https://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf
on page 119 seems to indicate that there may be 5000 (plus the initial)
points, not 50.
Accordingly I updated:
#define APERTURE_PARAMETERS_MAX 10002
(5000 points of x:y, plus initial x:y = 10002 parameters)
and recompiled, gerbv was then happy to read the gerber set in question
and rendered the layers perfectly in a cursory examination.
I suggest that the number 102 is, either simply wrong, or out-dated and
should be increased substantially as above.
---
James Sleeman
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