[mapserver-dev] libsvg-cairo / librsvg [vote]

Jeff McKenna jmckenna at gatewaygeomatics.com
Thu Jul 25 06:12:23 PDT 2013


Concerning windows: I've noted your comments.

Talk soon,


On 2013-07-24 2:08 PM, thomas bonfort wrote:
> Devs,
> While implementing svg symbology support, we made the choice to go
> with libsvg+libsvg-cairo for parsing and rendering of svg files, as
> those were the libraries that had the least dependencies. It turns out
> both those libraries are more or less abandonware, resulting in their
> absence from a number of distros, and an incompatibility with newer
> cairo apis.
> Along with release 6.4, I propose to add an SVG symbol implementation
> based on librsvg [ https://wiki.gnome.org/LibRsvg ], with the
> following consequences:
> - the user can decide at compile time wether to use libsvgcairo or librsvg
> - librsvg is maintained and present in distros, being a core component of gnome
> - librsvg has a number of dependencies, making its compilation/usage
> on non-standard platforms possibly problematic (c.f. previous point:
> but it is distributed by distros).
> - librsvg is GPL, with all that that might imply for people releasing
> mapserver binaries.
> This seems like the only way out if we want to continue supporting SVG
> symbols in the longer run. I understand the limitations, however the
> user still has the option to fall back to the current situation with
> libsvg-cairo.
> Jeff: concerning windows, all I can say is that librsvg support on
> windows can't be worse than that of libsvg-cairo.
> I'm not sure this really warrants a vote, but here goes in case anyone
> wants to veto.
> +1 for adding librsvg as an alternative to libsvg-cairo for rendering
> svg symbols.
> best regards,
> thomas

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