Jukka, Peppe, way above by payment grade :).. any comment?.. ede
-------- Forwarded Message -------- Subject: [JPP-Devel] Reading elevation data using Apache Commons Imaging Date: Sun, 11 Oct 2020 23:28:38 -0400 From: Gary Lucas <gwluca...@gmail.com> Reply-To: OpenJump develop and use <jump-pilot-devel@lists.sourceforge.net> To: jump-pilot-devel@lists.sourceforge.net I first heard about OpenJUMP last month when one of your users posted a bug report on the Apache Commons Imaging JIRA system (see https://issues.apache.org/jira/browse/IMAGING-265). The bug is fixed now and I am grateful for the folks here who brought it to my attention. Anyway, based on that posting, and some of the JPP documentation, I get the impression that Commons Imaging is used in at least some capacity in OpenJUMP. So I thought that I would mention another relatively new feature in the Commons Imaging API: the ability to read floating-point elevation data from USGS 3DEP Cloud-Optimized GeoTIFF files. This capability was introduced in the latest release of Commons Imaging (commons-imaging-1.0-alpha2). I don’t know if it is something the project can take advantage of, but I thought I would bring it to your attention. If you would like more information on the feature, I’ve just posted an article and some sample code showing how to use the API for creating shaded-relief imagery. While OpenJUMP already has its own shaded-relief capability through its Sextante plugin, I think that the article might be of interest to folks on this mailing list because it provides background on the USGS GeoTIFF files as well as discussing the algorithms for shaded-relief rendering. If you are interested, you may access it at https://gwlucastrig.github.io/gridfour/notes/ElevationGeoTiff1.html Thanks, and good luck on the JUMP Pilot Project. It is an impressive project and I look forward to studying it further. Gary _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
