* How to scale an external figure from lua ?
@ 2015-11-09 21:12 josephcanedo
2015-11-09 21:34 ` josephcanedo
0 siblings, 1 reply; 2+ messages in thread
From: josephcanedo @ 2015-11-09 21:12 UTC (permalink / raw)
To: ntg-context
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Dear all,
I am trying to write some lua code that loads some pdf file and scales it. I have the following code (got from previous question here to get number of pages from a pdf and from source files).
local figure = figures.push { name = filename, scale = N } -- scale value does not seem to be taken in account
assert(figure, 'Could not load figure from file ' .. filename)
figures.identify()
figures.check()
figures.dummy() -- needed ?
figures.scale() -- how to pass the scaling factor ?
local d = figures.done()
print('Scales ' .. figure.status.xscale .. ' ' .. figure.status.yscale) -- outputs Scales 1 1
figures.pop()
Hoping that’s possible to do in lua code and my questions are not too dumb (still a beginner in ConTeXt).
Many thanks for your help,
Best regards
JC
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* Re: How to scale an external figure from lua ?
2015-11-09 21:12 How to scale an external figure from lua ? josephcanedo
@ 2015-11-09 21:34 ` josephcanedo
0 siblings, 0 replies; 2+ messages in thread
From: josephcanedo @ 2015-11-09 21:34 UTC (permalink / raw)
To: ntg-context
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More precisely, I would like to get width and height of the scaled figure Inside lua code, to perform some checks.
Thanks again
Joseph
From: josephcanedo@gmail.com
Sent: Monday, November 9, 2015 10:12 PM
To: ntg-context@ntg.nl
Dear all,
I am trying to write some lua code that loads some pdf file and scales it. I have the following code (got from previous question here to get number of pages from a pdf and from source files).
local figure = figures.push { name = filename, scale = N } -- scale value does not seem to be taken in account
assert(figure, 'Could not load figure from file ' .. filename)
figures.identify()
figures.check()
figures.dummy() -- needed ?
figures.scale() -- how to pass the scaling factor ?
local d = figures.done()
print('Scales ' .. figure.status.xscale .. ' ' .. figure.status.yscale) -- outputs Scales 1 1
figures.pop()
Hoping that’s possible to do in lua code and my questions are not too dumb (still a beginner in ConTeXt).
Many thanks for your help,
Best regards
JC
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[-- Attachment #2: Type: text/plain, Size: 485 bytes --]
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
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