[cairo-bugs] [Bug 90166] New: Add a way to specify units

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 24 14:44:54 PDT 2015


            Bug ID: 90166
           Summary: Add a way to specify units
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: svg backend
          Assignee: emmanuel.pacaud at lapp.in2p3.fr
          Reporter: ao2 at ao2.it
        QA Contact: cairo-bugs at cairographics.org

Hi, what about adding a way to specify units for the SVG output?

SVG supports several units[1]: em, ex, px, pt, pc, cm, mm, in, and percentages;
but cairo hardcodes the document units to be pt.

What about a function like cairo_svg_surface_set_unit(surface, unit) ?

The units can be passed as enum values and the function would set the right
unit identifier as a string to use when writing the <svg> element in

If the idea looks good I can work on a patch.


[1] http://www.w3.org/TR/SVG/coords.html

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