agg and vector render options (was: Raster layer opacity)

Bernhard Reiter bernhard at intevation.de
Tue Mar 29 12:28:27 CEST 2005


Am 24. Mar 2005 um 23:57:48 schrieb Daniel Calvelo Aros:
> BTW, has anyone looked at the Anti-Grain Geometry library
> (http://antigrain.com)? 

I did not, but when checking the website I found the proprietry
license of General Polygon Clipper (GPC) appalling.
Do you know how important gpc is for agg?
If it is not important, why is it still in there?

> How difficult would it be to use that for rendering to
> a bitmap and copy this into a DC instead of using wxDC functions? 
> Is the cost
> of such a development worth the gain of antialiasing and transparency?

I cannot say, it would be interesting to see how wxWidgets people
thing about their drawing capabilities and what they plan in this area.

For www.skencil.org (former Bernhard Herzog's Sketch) I thought about Cairo.
Skenicl 0.7 uses libart, though this library did not continue as
strong as it started, so Cairo seems to be the future within Gnome.

In my personal list of what I want to do with Thuban the antialiasing
and transparency options are in the mid range. They look a lot nicer,
but functionality counts first for most users.

	Bernhard
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