[NTG-context] SVG ViewBox figure battle

[NTG-context] SVG ViewBox figure battle

[Thangalin via ntg-context]

Hi there!

The following document contains SVG. Save the SVG as "problem.svg" and
run the document through LMTX version 2023.05.08 17:39:

% SOF
\startbuffer[csvg]
<svg viewBox="0 0 100 100" version="1.1">
  <path d="M0 0h100v100H0z" />
  <path fill="#2d514e" d="M 72.474,42.6 33.073,42.8 51.872,-26.7 Z" />
</svg>
\stopbuffer

\starttext
  % honours viewbox
  \placefigure[none]{}{\includesvgbuffer[csvg]}
  \page
  % dishonours viewbox
  \externalfigure[problem.svg]
\stoptext
% EOF

The ViewBox is ignored when run through Inkscape. Is this because the
--export-area-page option is not being passed when invoked?

Given identical inputs, would it make sense for placefigure and
externalfigure to produce identical results?

Cheers!
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Re: [NTG-context] SVG ViewBox figure battle

[Thangalin via ntg-context]

Hi again,

I changed tex/texmf-context/tex/context/base/mkiv/grph-con.lua to
replace "" with "--export-area-page" in the inkscapecrop function:

    local function inkscapecrop(specification)
        return (specification and specification.crop == v_yes) and
"--export-area-drawing" or "--export-area-page"
    end

This produces the desired results.

Any ideas on how to force that setting without modifying grph-con.lua?

Thank you!
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___________________________________________________________________________________

Re: [NTG-context] SVG ViewBox figure battle

[Max Chernoff via ntg-context]

Hi,
> Any ideas on how to force that setting without modifying grph-con.lua?

This seems to work:

   \startluacode
   function figures.converters.svg.pdf(oldname, newname)
       figures.programs.inkscape.runner {
           format     = "filename",
           resolution = "600",
           crop       = "--export-area-page",
           newname    = dir.expandname(newname),
           oldname    = dir.expandname(oldname),
       }
   end
   \stopluacode
   
I mostly just copied that from grph-con.lua, but the CLD manual has a
few more details:

   https://www.pragma-ade.com/general/manuals/cld-mkiv.pdf#%5B%7B%22num%22%3A89%2C%22gen%22%3A0%7D%2C%7B%22name%22%3A%22Fit%22%7D%5D

-- Max
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