On Wednesday, January 24, 2018 at 1:32:59 PM UTC, Joerg Pleumann wrote:
> Hi,
> sorry is this has been discussed before, but we cannot seem to make it 
> work: We are using Trac 1.2.2 and want to display an image with clickable 
> hyperlink regions that point to other Trac wiki pages. SVG is preferred 
> because of scalability, but unfortunately the links got lost when rendering 
> the SVG. We can choose between a link to the graphic itself (default 
> behavior) or one that is not clickable at all (map/usemap, from here 
> <https://trac.edgewall.org/ticket/4969>). A bitmap with HTML clickable 
> regions would also be ok. I guess we could always try to express the whole 
> thing as inline HTML code and use static resources from "somewhere", but 
> that does not seem so maintainable/elegant.
> Any hints are appreciated.
> Cheers
> Joerg

I haven't used image maps very often, but it seems like #4969 is 
misleading. The Image macro use the value of the usermap argument when 
generating the img element. I'm not sure that an attachment like 
"photomap.txt" is supported as a value for the usermap argument. It looks 
like usermap must refer to a usermap element in the HTML. Therefore, I 
assume the only way is to put the usermap element inline in the HTML using 
a WikiProcessor.

For example, PlantUmlMacro supports image maps (1). The markup looks like 

<map id="49d3988d0f436b1348b6e28a52057c7dda5d8b11_map" 
<area shape="rect" id="id1" href="http://www.google.com"; 
title="http://www.google.com"; alt="" coords="8,3,48,117">
<img src="/proj-1.0/plantuml?id=49d3988d0f436b1348b6e28a52057c7dda5d8b11" 

It may be that I'm not entirely following your usecase. Could you provide a 
concrete example?

- Ryan

(1) https://trac-hacks.org/ticket/10998


You received this message because you are subscribed to the Google Groups "Trac 
Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to trac-users+unsubscr...@googlegroups.com.
To post to this group, send email to trac-users@googlegroups.com.
Visit this group at https://groups.google.com/group/trac-users.
For more options, visit https://groups.google.com/d/optout.

Reply via email to