Hi Jukka Rahkonen, I am impressed that you were able to download and test the demo application so quickly.
Would it be possible for me to get a copy of the test data that you used? The results were slower than I expected. I want to investigate and see if I can improve the processing time. Also, what version of the Java JVM did you use? And what were the command-line options that you passed to the JVM? Name: W4323G3.laz Type: Lidar (GroundPoints) Vertices: 6564001 Load time(ms): 31068 Sort time(ms): 1898 On Thu, May 12, 2022 at 9:15 AM Rahkonen Jukka < jukka.rahko...@maanmittauslaitos.fi> wrote: > Hi, > > > > Thanks, this is very interesting. I downloaded the demo and had a try with > our point cloud data with one .laz file and it was opened and shown fine: > > > > Name: W4323G3.laz > > Type: Lidar (GroundPoints) > > Vertices: 6564001 > > Load time(ms): 31068 > > Sort time(ms): 1898 > > > > Unfortunately I can’t help with making the plugin. > > > > -Jukka Rahkonen- > > > > > > *Lähettäjä:* Gary Lucas <gwluca...@gmail.com> > *Lähetetty:* torstai 12. toukokuuta 2022 15.38 > *Vastaanottaja:* OpenJump develop and use < > Jump-pilot-devel@lists.sourceforge.net> > *Aihe:* [JPP-Devel] A Delaunay triangulation library to support Lidar data > > > > I am sending this email to make a modest offer to the OpenJUMP developer > community. > > I’ve written a Java library for processing Delaunay triangulations that > may be useful for OpenJUMP. The Tinfour open-source software API is > sufficiently fast to handle large unstructured data sets such as Lidar. I > did a little testing this morning and was able to process a Lidar file > containing 15 million samples in 12 seconds. > > I think that the API could be used as part of an OpenJUMP plugin. > > If you would like to learn more, you may visit the Tinfour project at > https://github.com/gwlucastrig/Tinfour > <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fgwlucastrig%2FTinfour&data=05%7C01%7Cjukka.rahkonen%40maanmittauslaitos.fi%7Ca334e9c92ee94036965e08da341458d2%7Cc4f8a63255804a1c92371d5a571b71fa%7C0%7C1%7C637879559239748480%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=IhNHKfD1kFp1i5frBZpGpYyX0dSoZKFNnhXy68zO%2Bcc%3D&reserved=0> > > Due to my job commitments, I do not have the availability to write a > plugin myself (thus the “modest” in this offer). But if someone were > interested, I would be willing to support the effort by answering > questions, assisting in design issues, and implementing Tinfour > improvements or customizations required for the plugin. > > Finally, if you would like to explore the feasibility of using Tinfour to > process Lidar, I have a couple of demonstration applications that are > available as part of the Tinfour distribution. The Tinfour Viewer allows > you to drag and drop a Lidar file onto a display area and review it > interactively. The demonstrator should be enough to test the idea and > reveal any issues I may not have thought of. > > Thank you for your time and attention. I wish the OpenJUMP community the > best of success with your project. > > Gary > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >
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