That might be what we're looking for instead of using union. Thanks Martin!
On Fri, Oct 17, 2014 at 3:14 PM, Martin Davis <[email protected]> wrote:
> 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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