On tirsdag, april 2, 2002, at 07:20 , Tobias Oetiker wrote: >> There's one thing I'm really missing, which is the stippled grid line >> from the GD version. It doesn't seem to be easy to do with libart. Is >> this on someone's hit list already? I'd hate to reinvent the wheel... > > Hi Bert, > > nope, but I guess by tuning the color and transparency defaults for > the current lines this should be feasible ... I also expect the > promised eps driver to use dashed lines to approximate transparency
A few comments from eps/svg/pdf land: dashed lines are implemented as an attribute on the line just like color is. The dash is a full on/off functionality, so it basically chops the line into sublines. The simplest implementation will have an attribute which is subline length for each dash. The next simplest version will have a separate length for the on-part and for the off-part. Having length = 0 could signal non-dashed line. Transparency came rather late to pdf (version 1.4, Acrobat 5.0), so using it could probably be a problem for most non-Adobe pdf readers. EPS/Postscript does not have support for transparency, and it have to be faked somehow, if desireable. svg has transparency for it from version 1.0. ---- - Peter Speck -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-developers WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
