Re: [jts-dev] CIRCULARSTRING implementation in JTS

[Jody Garnett <jody.garnett@xxxxxxxxx>]

There is an implementation in GeoTools.

The general approach is to subclass LineString and dynamically produce a coordinate sequence on request.

- https://docs.geotools.org/latest/userguide/library/jts/geometry.html <-- see the diagrams

- https://github.com/geotools/geotools/blob/master/modules/library/main/src/main/java/org/geotools/geometry/jts/CircularString.java

- https://github.com/geotools/geotools/blob/master/modules/library/main/src/main/java/org/geotools/geometry/jts/WKTReader2.java#L483

If you wanted a strictly JTS approach you could generate a LineString while parsing.

--

Jody Garnett

On Fri, 20 Dec 2019 at 10:22, Jeroen Bloemscheer | Tensing <JBloemscheer@xxxxxxxxxxx> wrote:

My idea is to implement a curve or arc in JTS.

 

This is implemented in WKT as CIRCULARSTRING(0 0.159155, 0.159155 0, 0 -0.159155, -0.159155 0, 0 0.159155)

 

Currently this does not seem to work.

 

Would appreciate if someone could point me to some previous work in this array or where to start to implement a curve or an arc.

 

 

Sent from Mail for Windows 10

 

_______________________________________________
jts-dev mailing list
jts-dev@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://dev.eclipse.org/mailman/listinfo/jts-dev