Hello all

Le 27/03/13 16:47, Peter K a écrit :
just found this newly open sourced java library from Esri (Apache licensed):

https://github.com/Esri/geometry-api-java/

At a very quick first look, its look like a possible replacement to JTS (Java Topology Suite) - at least partially, I don't know yet if the new library covers as much. Given that JTS is under LGPL license, this alternative under Apache 2 license may help.

However this library seems to have approximatively the same scope than the JTS library, namely two-dimensional geometries, maybe in Cartesian space (I didn't checked if they have this restriction too). Having the three-dimensional geometries defined by ISO 19107 may still an other business.

The plan that I would like to propose is to create ISO 19107 wrappers around those geometries, i.e. uses ISO 19107 interfaces in the SIS API, but using that library under the hood at least for two-dimensional geometries. This would allow us to plugin three-dimensional geometries more easily later. However the ISO 19107 standard is under revision right now, and it may be less effort to wait for stabilisation before to venture in such wrappers (if we go that way)...

    Martin

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