[OSM-dev] Simplifying ways

[Sebastian Kürten]

Hi,

JTS[1] (the JTS Topology Suite) has a DouglasPeuckerSimplifier
implemented[2]. Additionally, there is the so-called
TopologyPreservingSimplifier[3] which is very good for polygons because
it prevents topological collapse. JTS is a Java library.

Regards
Sebastian

[1]http://tsusiatsoftware.net/jts/main.html
[2]http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/simplify/DouglasPeuckerSimplifier.html
[3]http://tsusiatsoftware.net/jts/javadoc/com/vividsolutions/jts/simplify/TopologyPreservingSimplifier.html

On Sat, 05 May 2012 04:03:30 -0700
Paul Norman <penorman at mac.com> wrote:

> I'm working with a process where I generate a .osm file and need to
> simplify the ways in output on the command line. JOSM's simplify way
> command isn't an option as it requires interaction and it is also
> fairly slow on large files. Using ogr2ogr to simplify the source
> files is not an option as it could cause the different layers to no
> longer agree with each other.
> 
> I'd rather not re-implement Douglas-Peucker if someone has already
> done it.
> 
> 
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