Re: [graphviz-interest] A question about the docs for cmapx

Hi Ryan

Thanx for the quick reply. I shall investigate.

On 21/10/16 09:05, Ryan Schmidt wrote:
> Hi Ron,
>
>
> On Oct 20, 2016, at 4:51 PM, Ron Savage <[email protected]> wrote:
>
>> I'm the author of the Perl wrapper GraphViz2 (https://metacpan.org/release/GraphViz2) around dot, and a user has requested support for image maps. He sent this url:
>>
>> http://www.graphviz.org/doc/info/output.html#d:cmapx
>>
>> I tried the code there but 'gif' was rejected. I found I could use 'svg' and 'png'.
>>
>> I'm using dot V 2.38.0 under Debian V 8.6.
>>
>> shell> aptitude search libgif
>> p   libgif-dev     - library for GIF images (development)
>> i A libgif4        - library for GIF images (library)
>> p   libgiftiio-dev - IO library for the GIFTI cortical surface data format
>> p   libgiftiio0    - IO library for the GIFTI cortical surface data format
>>
>> shell> dot -T?
>> Format: "?" not recognized. Use one of: canon cmap cmapx cmapx_np dot eps fig gv imap imap_np ismap pdf pic plain plain-ext png pov ps ps2 svg svgz tk vml vmlz x11 xdot xdot1.2 xdot1.4 xlib
>>
>> So, is the problem:
>> o My version of dot is out-of-date; or
>> o My version of dot was installed in an environment without libgif; or
>> o Are the docs are wrong.
>
> I would say your dot was built without gd support.
>
> https://www.libgd.org
>
> Graphviz in MacPorts is built with gd support, and here's what we have:
>
> $ dot -T?
> Format: "?" not recognized. Use one of: bmp canon cgimage cmap cmapx cmapx_np dot dot_json eps exr fig gd gd2 gif gv icns ico imap imap_np ismap jp2 jpe jpeg jpg json json0 mp pct pdf pic pict plain plain-ext png pov ps ps2 psd sgi svg svgz tga tif tiff tk vml vmlz vrml wbmp webp x11 xdot xdot1.2 xdot1.4 xdot_json xlib
>

-- 
Ron Savage - savage.net.au
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