On Wed, Jun 17, 2015 at 9:21 AM Andrea Aime <[email protected]> wrote:
> On Wed, Jun 17, 2015 at 8:11 AM, Ben Caradoc-Davies <[email protected]> > wrote: > >> GeoTools bloggers, >> >> please have a look at the draft blog post for GeoTools 12.4 and add >> anything you think may be relevant to this release: >> https://www.blogger.com/ >> >> Jody, there is a Wikipedia page for the van der Grinten projection with a >> picture: >> https://en.wikipedia.org/wiki/Van_der_Grinten_projection >> >> Andrea, is this image accurate? >> > > The image is accurate, yep, but the projection was already there. A > projection handler is a class > used in "advanced projection handling" that knows about the projection > valid area (from a math > point of view) and is used to cut geometries before reprojecting them. > In this case it's used to cut away imprecise geometries/rasters that have > even the slighties bit > outside of the -180,-90,180,90 range, which would make the projection fail. > > All in all, the news is that we have now a better chance of reprojecting a > layer touching the poles > and the dateline with the Van Der Grinten projection, but the projection > itself was already there, > has been there since 2011 acconding to GitHub history: > > > https://github.com/geotools/geotools/commits/master/modules/library/referencing/src/main/java/org/geotools/referencing/operation/projection/WorldVanDerGrintenI.java > > I was going to test this put but I can't seem to find a reference to it (or some of the other new projections) in the epsg-* jars. Am I looking in the wrong places or is there some other way for existing programs to access these projections? cheers Ian > >
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