I'm showing a user how to use scripts for mged to change region and
combination attributes and I ran across a situation I can't explain:
Use the comb_color command to set RGB on a combination with no existing
color:
mged> attr show stool2
stool2 combination:
mged> comb_color stool2 80 80 80
mged> attr show stool2
stool2 combination:
rgb 80/80/80
That looks reasonable. Now remove the rgb attr:
mged rm stool2 rgb
mged> attr show stool2
stool2 combination:
Set the attr "manually"
mged> attr set stool2 rgb 80/80/90
mged> attr show stool2
color 80/80/80
Notice the attr name has changed!
Now run the comb_color again:
mged> comb_color stool2 80 80 80
mged> attr show stool2
color 80/80/80
rgb 80/80/80
Now both color and rgb are showing!
So, what is the user to do to truly affect the color: use both rgb and
color attributes? Or does it matter since BRL-CAD may be treating 'color'
and 'rgb' as aliases for each other?
Best regards,
-Tom
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