Graph::Easy - F.A.Q. - Frequently Asked Questions

# Graph::Easy - Manual

## F.A.Q. - Frequently Asked Questions

This document tried to answer the most frequently asked questions in relation to Graph::Easy, as well as for the MediaWiki integration.

## SVG (Scalable Vector Graphic) Problems

### Links open inside the SVG

Question:

When I click a link in an SVG graph, the new page is opened inside the graph, instead of in a new window/tab or even in the same window.

Answer:

This is a Firefox 1.5 bug. Firefox will open links in SVGs by default "inline", and it even ignores attributes like "xlink:show" and "xlink:target".
The bug is reportedly already fixed in the Mozilla codebase, so it should work in the near future in a browser on your system.
In the meantime upgrade Graph::Easy::As_svg, as newer versions contain a workaround for this bug.
See also bug #315389 in the bugzilla.

### Text too big

Question:

The text on nodes is to big, and sometimes even crosses the node border.

Answer:

Yet another Firefox bug. Firefox 1.5 renders the text in the user-specified font-size, ignoring the font-site set inside the SVG document. Since the rest of the generated SVG code assumes the set size, the nodes are too small (or too big).
This isn't really fixable from my end, because the SVG generator cannot know what text size the user specified in the `Preferences`.
You can see the bug in action when you use the text-zoom (`CTRL` plus `+` or `-`), Firefox will zoom the font/text, but not the rest of the SVG, thus the graphic quickly becomes garbled.

### Graphic corruptions

Question:

I see only garbled graphs, f.i. it has black rectangles or the labels are not properly centered.

Answer:

Make sure you are using the latest version of your browser. Opera 8.5 does only support SVG Tiny, which is not enough to properly display the SVG generated by Graph::Easy. Likewise, Opera 9.0 only supports SVG Basic, which sadly also misses key features like centered text.
Other browsers seem to lack support for CSS-styles inside SVG, and thus will render the fillcolor inside nodes wrongly (the default is black, and the overriden color from the CSS is ignored by these buggy browsers).

## Graphviz

### Todo

Question:

Answer:

## Contact and Bugreports

If you have questions, feel free to send me an email (Gnupg key). Bugreports should go to rt.cpan.org.