Hello Hans,
thank you for implementation 'figures.getinfo()'; two points:
1. Code:
----
\startluacode
local n =
"x:/Users/MMi/Akce/I-6_Krusovice.DSP-ZDS/Admin/Jednani/2017-07-07-SU-Rakovnik/ZJ.pdf"
local d = figures.getinfo(n)
...
----
prints (probably to-string converted) resulting table:
"
close source > level 3, order 8, name 'd://Lukas/ConTeXt/Styles/PxLetter.sty'
table={
["request"]={
["arguments"]=false,
["cache"]=false,
["color"]=false,
["controls"]=false,
["conversion"]=false,
["display"]=false,
["format"]=false,
["height"]=false,
["label"]=false,
["mask"]=false,
["name"]="x:/Users/MMi/Akce/I-6_Krusovice.DSP-ZDS/Admin/Jednani/2017-07-07-SU-Rakovnik/ZJ.pdf",
...
},
["status"]={
...
},
["used"]={
["colordepth"]=0,
["depth"]=0,
["format"]="pdf",
["fullname"]="x:/Users/MMi/Akce/I-6_Krusovice.DSP-ZDS/Admin/Jednani/2017-07-07-SU-Rakovnik/ZJ.pdf",
["height"]=55380991,
...
},
}
"
- Is it intend? Or residual debugging status?
2. Is there a Ctx built-in converter which would convert width and height (e.g. here:
["height"]=55380991) from "height units" to milimeters?
Best regards,
Lukas
On Mon, 14 Aug 2017 16:55:09 +0200, Hans Hagen <pra...@wxs.nl> wrote:
On 8/14/2017 1:08 PM, Procházka Lukáš Ing. wrote:
Hello,
is there a way how to get the following info from a PDF file via Lua/Ctx
API?:
- first: number of pages of the PDF,
- next: for each page: get width, height and orientation
(portrait/landscape) or rotation (+90,+ 180, +270 or so) of i-th page.
this probably has come up several times now, anyway
\getfiguredimensions[test.pdf]
\dorecurse {\noffigurepages} {
\getfiguredimensions[test.pdf][page=#1]
\figurenaturalwidth
,\figurenaturalheight,\figureorientation,\figurerotation\par
}
in lua you can either use the img library (see luatex manual) or context
helpers
local data = figures.push("foo.pdf")
figures.identify()
figures.check()
figures.pop()
inspect(data)
i'll add:
function figures.getinfo(name,page)
if type(name) == "string" then
name = { name = name, page = page }
end
if name.name then
local data = figures.push(name)
figures.identify()
figures.check()
figures.pop()
return data
end
end
so that one can do
local n = "ms.pdf"
local d = figures.getinfo(n)
if d then
for i=1,d.used.pages do
local p = figures.getinfo(n,i)
if p then
local u = p.used
print(u.width,u.height,u.orientation)
end
end
end
etc etc
--
Ing. Lukáš Procházka | mailto:l...@pontex.cz
Pontex s. r. o. | mailto:pon...@pontex.cz | http://www.pontex.cz |
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