getting number from context.figurewidth
Dear list, I have the following sample: \starttext \startluacode document.sample = "xml-mkiv.pdf" context.getfiguredimensions({ document.sample }) context(context.figureheight) context.par() context(tex.dimen.paperheight) \stopluacode \stoptext Is there a way that I can get a number from context.figureheight, such as I get it from tex.dimen.paperheight? Many thanks for your help, Pablo -- http://www.ousia.tk
On 10/26/21 6:31 PM, Pablo Rodriguez via ntg-context wrote:
[...] Is there a way that I can get a number from context.figureheight, such as I get it from tex.dimen.paperheight?
Sorry for insisting, I need it for a Lua script that in the relevant line reads: loader_times:write('.box placeholder width=' .. context.figurewidth .. ' height=' .. context.figureheight) I cannot concatenate string and function (and I need the number, not the unit). Is there no way of doing it? Many thanks for your help, Pablo -- http://www.ousia.tk
Hi, Pablo. I have no idea of what you need to do, but in grph-inc.lua you find the following (line 709): implement { name = "figurestatus", actions = { get, context }, arguments = { "'status'", "string", "string" } } So that \figureheight calls this function via \clf_figurestatus and, in turn, it calls figures.get. If I'm right, figures.get('status','height','0') -- or '"status"' ? would have to return the value you're asking for (at the TeX end, "sp" units are added). A MWE wouldn't hurt. I hope this helps or, at least, it leads you through the right direction. Cordially, Jairo El mié, 27 de oct. de 2021 a la(s) 14:20, Pablo Rodriguez via ntg-context ( ntg-context@ntg.nl) escribió:
On 10/26/21 6:31 PM, Pablo Rodriguez via ntg-context wrote:
[...] Is there a way that I can get a number from context.figureheight, such as I get it from tex.dimen.paperheight?
Sorry for insisting, I need it for a Lua script that in the relevant line reads:
loader_times:write('.box placeholder width=' .. context.figurewidth .. ' height=' .. context.figureheight)
I cannot concatenate string and function (and I need the number, not the unit).
Is there no way of doing it?
Many thanks for your help,
Pablo -- http://www.ousia.tk
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On 10/27/2021 9:20 PM, Pablo Rodriguez via ntg-context wrote:
On 10/26/21 6:31 PM, Pablo Rodriguez via ntg-context wrote:
[...] Is there a way that I can get a number from context.figureheight, such as I get it from tex.dimen.paperheight?
Sorry for insisting, I need it for a Lua script that in the relevant line reads:
loader_times:write('.box placeholder width=' .. context.figurewidth .. ' height=' .. context.figureheight)
I cannot concatenate string and function (and I need the number, not the unit).
Is there no way of doing it? i'm pretty sure this has been asked before
\ctxlua{local f = figures.getinfo("cow.pdf") print(f and f.used and f.used.width)} so .. time to wikify it Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
On 10/27/21 10:06 PM, Hans Hagen via ntg-context wrote:
On 10/27/2021 9:20 PM, Pablo Rodriguez via ntg-context wrote:
On 10/26/21 6:31 PM, Pablo Rodriguez via ntg-context wrote:
[...] loader_times:write('.box placeholder width=' .. context.figurewidth .. ' height=' .. context.figureheight)
I cannot concatenate string and function (and I need the number, not the unit).
Is there no way of doing it? i'm pretty sure this has been asked before
\ctxlua{local f = figures.getinfo("cow.pdf") print(f and f.used and f.used.width)}
so .. time to wikify it
Many thanks for your reply, Hans. Already wikified at https://wiki.contextgarden.net/Image_Placement#Measures_in_Lua. Many thanks again for your help, Pablo -- http://www.ousia.tk
participants (3)
-
Hans Hagen -
Jairo A. del Rio -
Pablo Rodriguez