Re: Revised SVG terminal supports mouse interaction

[Mojca M. <moj...@gm...>]

On Sun, Apr 10, 2011 at 05:06, sfeam (Ethan Merritt)
<eam...@gm...> wrote:
> I have dusted off various patches, comments and suggestions uploaded
> to SourceForge dating back 2 years or so, and with their guidance
> have managed to write a set of javascript support routines for the
> SVG terminal driver.  Since I am largely unfamiliar with both SVG and
> javascript, this implementation should be considered fair game for
> total replacement if someone more knowledgeable wants to tackle the
> project.
>
> SVG documents from the revised driver can now
>   - toggle display of individual plots by clicking on the
>     corresponding legend or sample in the key
>   - toggle the grid on/off by clicking on a grid icon shown
>     at the bottom left of the plot
>   - track the mouse position
>
> A regenerated set of online demo pages may be viewed at
>
>  http://gnuplot.sourceforge.net/demo_svg_4.5/
>
> Not surprisingly, SVG support in various web browsers and
> graphics programs is still dodgy.
>
> Firefox (tested using version 3.6.14)
>  - Firefox can display and interact with the bare SVG document
>  or an HTML document with SVG embedded (e.g. the online demos)
>  - It has various rendering bugs, the most annoying of which is
>  that it ignores purely vertical lines.  Because of this I have
>  added an ugly hack to svg.trm to displace one end of every
>  Path element by 0.01 pixel horizontally.
>
> Opera (tested using version 11.01)
>  - Everything works
>
> Konqueror (tested using version 4.4.3)
>  - Konqueror displays isolated or embedded SVG documents correctly
>  but fails to connect to the javascript DOM so that you can
>  interact with it.
>  - No support for pattern fill
>
> Chrome
>  - Chrome displays isolated SVG documents correctly, but fails to
>  display embedded documents.  No interaction.
>
> I'd like to hear about success/failure with Safari or IE.

It seems to work fine in Safari.

It takes ages to draw something like
http://gnuplot.sourceforge.net/demo_svg_4.5/transparent_solids.html.
No, wait. That was not SVG's fault. I have only now realized that the
generated graphics are approximately 1 MB and it only took ages do
download them.

I have only discovered one weirdness. With linespoints clicking on the
label only removes the line, not the points of the same plot, but I
guess that this is not Safari-specific.

Mojca