- From: Andreas Neumann <a.neumann@carto.net>
- Date: Tue, 08 Mar 2011 10:52:54 +0100
- To: David Woolley <forums@david-woolley.me.uk>
- Cc: SVG List <www-svg@w3.org>
For rivers, cartographers usually don't use circular arcs, but rather quadratic or cubic splines. However, for other features, like roundabouts, roads, road junctions, certain buildings, etc. circular arcs are important. In the Swiss cadastral data you will find a lot of circular arcs. Besides, they are useful for pie charts and other features, e.g. map symbols, or technical parts. Andreas On Tue, 08 Mar 2011 08:39:45 +0000, David Woolley wrote: > Alex Danilo wrote: > >> The entire point of having arcs in the path syntax is to have >> accurate curves for things like rivers in maps, etc, etc. We do not > > I've never heard of any theory of physical geography that predicts > that rivers will follow true circular arcs. Surely an arc is just as > much an approximation of the path of a river as is a Bezier. -- -- Andreas Neumann Böschacherstrasse 10A 8624 Grüt (Gossau ZH) Switzerland
Received on Tuesday, 8 March 2011 09:53:34 UTC