If you are actually just wanting to dissolve the linework, rather than
fully union it (i.e. not adding nodes, just dissolving fully coincident
linework), then have a look at the LineDissolver class (ver 1.14 in SVN
only)
http://sourceforge.net/p/jts-topo-suite/code/HEAD/tree/trunk/jts/java/src/com/vividsolutions/jts/dissolve/LineDissolver.java
This should be faster than union().
On Thu, Oct 16, 2014 at 10:34 AM, Rob Emanuele <[email protected]> wrote:
> Hello,
>
> I'm unioning a lot of LineStrings. A couple problems that I'm having is
> that I find it throws TopologyExceptions, can sometimes produce invalid
> MuliLineStrings, and is very slow.
>
> The way I'm doing it is to collect all the LineStrings as a
> MultiLineString and calling the parameter-less `.union()` on the
> MultiLineString.
>
> Is there a better way to do this (a la CascadingPolygonUnion)?
>
> Thanks,
> Rob
>
>
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