Re: Needs a sanity check on Vertical Transformation
Clifford J Mugnier <[email protected]> Fri, 1 Nov 2019 20:14:48 +0000
| Newsgroups | gmane.comp.gis.proj-4.devel |
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| Message-ID | <SN6PR06MB4701801F8839FC99DD362EF2A8620@SN6PR06MB4701.namprd06.prod.outlook.com> |
GEOID12B has been superceded Clifford J. Mugnier, c.p., c.m.s. Chief of Geodesy LSU Center for GeoInformatics (ERAD 266) Dept. of Civil Engineering (P.F. Taylor 3531) LOUISIANA STATE UNIVERSITY Baton Rouge, LA 70803 Academic: (225) 578-8536 Research: (225) 578-4578 Cell: (225) 328-8975 honorary lifetime member, lsps fellow emeritus, asprs member, apsg ________________________________ From: PROJ <[email protected]> on behalf of YK_climate <[email protected]> Sent: Friday, November 1, 2019 3:12 PM To: [email protected] <[email protected]> Subject: [PROJ] Needs a sanity check on Vertical Transformation Hello, I have been trying to perform vertical transformation with Proj for a few days now, I think I am done but I am in some help to be sure I didn't make some stupid mistakes! I am looking at getting coordinates in WGS84-Ellipsoid to WG84-EGM96,WG84- EGM2008 and to NAD83(2011)GEOID12B. Here is what I have working so far : WGS84-EGM2008 : cs2cs EPSG:4979 EPSG:4326+3855 WGS84-EGM96 : cs2cs EPSG:4979 EPSG:4326+5773 Is this correct? So naturally I thought that GEOID12B would be as easy : NAD83(2011)-GEOID12B : cs2cs EPSG:4979 EPSG:6319+5703 <= no vertical change NAD83(2011)-GEOID12B : cs2cs EPSG:4979 EPSG:5498 <= no vertical change After reading about geoidgrids I tried this and it works but I need to be sure I am using the right parameters cs2cs EPSG:4979 "+proj=longlat +datum=NAD83 +geoidgrids=g2012bu0.gtx" Thank you for your time! -- Sent from: https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fosgeo-org.1560.x6.nabble.com%2FPROJ-4-f3840930.html&data=02%7C01%7Ccjmce%40lsu.edu%7Cafe36ce1aea14cae713b08d75f07c9fb%7C2d4dad3f50ae47d983a09ae2b1f466f8%7C0%7C1%7C637082359369233259&sdata=QIuy0Tjq6YxORR76mA0%2BlzqWoHc3ee9bBtZVdUaB9Cw%3D&reserved=0 _______________________________________________ PROJ mailing list [email protected] https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fproj&data=02%7C01%7Ccjmce%40lsu.edu%7Cafe36ce1aea14cae713b08d75f07c9fb%7C2d4dad3f50ae47d983a09ae2b1f466f8%7C0%7C1%7C637082359369233259&sdata=iEajlneP1WEN%2FLEI9kIJPfa1BYXkbNqu1frYdjy3Z94%3D&reserved=0 _______________________________________________ PROJ mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/proj