SV: [mapserver-users] Projection error, RT90 in MapServer
Hi Jukka, Wonderful! You fixed the problem, thank you very much! This solution saves me hours of work. :) And you are right about the 'units=m' in the wgs84 projection, it works fine without it. Regards, Sofia Från: Rahkonen Jukka [jukka.rahko...@mmmtike.fi] Skickat: den 22 januari 2010 16:06 Till: Sofia Bryntse; mapserver-users@lists.osgeo.org Ämne: Re: [mapserver-users] Projection error, RT90 in MapServer Hi, How about these parameters? +proj=tmerc +lat_0=0 +lon_0=15.808278 +k=1 +x_0=150 +y_0=0 +ellps=bessel +units=m +towgs84=414.0978567149,41.3381489658,603.0627177516,-0.8550434314,2.1413465,-7.0227209516,0 +no_defs Taken from http://www.zonefivesoftware.com/SportTracks/Forums/viewtopic.php?t=3543postdays=0postorder=ascstart=25 By the way, I suppose the unint in your WGS84 definition are wrong. Maybe you do not need the line at all. PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END -Jukka- -Alkuperäinen viesti- Lähettäjä: Sofia Bryntse [mailto:sofia.bryn...@et.slu.se] Lähetetty: pe 22.1.2010 16:09 Vastaanottaja: Rahkonen Jukka; mapserver-users@lists.osgeo.org Aihe: SV: [mapserver-users] Projection error, RT90 in MapServer Hi Jukka, Thank you, I tried adding your line to my RT90 projection parameter list now, but it didn't help. The point moved 50 meters or so, but not in the right direction. (See attached screenshot.) Regards, Sofia Från: Rahkonen Jukka [jukka.rahko...@mmmtike.fi] Skickat: den 22 januari 2010 11:16 Till: Sofia Bryntse; mapserver-users@lists.osgeo.org Ämne: Re: [mapserver-users] Projection error, RT90 in MapServer Hi, Have you tried adding 'towgs84=0,0,0,0,0,0,0' also to RT90 definitions? -Jukka Rahkonen- -Alkuperäinen viesti- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Fia Lähetetty: 22. tammikuuta 2010 10:56 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Projection error, RT90 in MapServer Hello, I have a problem showing data in the former Swedish standard reference system RT90 2,5 gon V. The point is projected ~250 meters northwest of where it should be. I have used the projection parameters for MapServer from Spatialreference.org. The underlying map projection is SWEREF 99 TM (the new standard Swedish reference system), with the following projection parameters: PROJECTION 'proj=utm' 'zone=33' 'ellps=GRS80' 'towgs84=0,0,0,0,0,0,0' 'units=m' 'no_defs' END I have then tested to pinpoint an intersection, in both WGS-84 and RT90, but the RT90 point does not end up where it should be. I have double checked that the RT90 coordinates are correct by transforming them to WGS-84. See my attached screenshot. http://n2.nabble.com/file/n4438959/rt90_mapserver_error.jpg For the WGS-84 point I have the following projection parameters: PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END And the RT90 point has: PROJECTION proj=tmerc lat_0=0 lon_0=15.808278 k=1 x_0=150 y_0=0 ellps=bessel units=m no_defs END I have also tried all the other RT90 projections provided by Spatialreference.org, just to see if any of them would work better, but without luck. Have I made a mistake somewhere, or are there any suggestions of why this error occurs? I'm out of ideas. Regards, Sofia -- View this message in context: http://n2.nabble.com/Projection-error-RT90-in-MapServer-tp4438 959p4438959.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users attachment: rt90_fixed.JPG___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
[mapserver-users] Projection error, RT90 in MapServer
Hello, I have a problem showing data in the former Swedish standard reference system RT90 2,5 gon V. The point is projected ~250 meters northwest of where it should be. I have used the projection parameters for MapServer from Spatialreference.org. The underlying map projection is SWEREF 99 TM (the new standard Swedish reference system), with the following projection parameters: PROJECTION 'proj=utm' 'zone=33' 'ellps=GRS80' 'towgs84=0,0,0,0,0,0,0' 'units=m' 'no_defs' END I have then tested to pinpoint an intersection, in both WGS-84 and RT90, but the RT90 point does not end up where it should be. I have double checked that the RT90 coordinates are correct by transforming them to WGS-84. See my attached screenshot. http://n2.nabble.com/file/n4438959/rt90_mapserver_error.jpg For the WGS-84 point I have the following projection parameters: PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END And the RT90 point has: PROJECTION proj=tmerc lat_0=0 lon_0=15.808278 k=1 x_0=150 y_0=0 ellps=bessel units=m no_defs END I have also tried all the other RT90 projections provided by Spatialreference.org, just to see if any of them would work better, but without luck. Have I made a mistake somewhere, or are there any suggestions of why this error occurs? I'm out of ideas. Regards, Sofia -- View this message in context: http://n2.nabble.com/Projection-error-RT90-in-MapServer-tp4438959p4438959.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Projection error, RT90 in MapServer
Hi, Have you tried adding 'towgs84=0,0,0,0,0,0,0' also to RT90 definitions? -Jukka Rahkonen- -Alkuperäinen viesti- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Fia Lähetetty: 22. tammikuuta 2010 10:56 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Projection error, RT90 in MapServer Hello, I have a problem showing data in the former Swedish standard reference system RT90 2,5 gon V. The point is projected ~250 meters northwest of where it should be. I have used the projection parameters for MapServer from Spatialreference.org. The underlying map projection is SWEREF 99 TM (the new standard Swedish reference system), with the following projection parameters: PROJECTION 'proj=utm' 'zone=33' 'ellps=GRS80' 'towgs84=0,0,0,0,0,0,0' 'units=m' 'no_defs' END I have then tested to pinpoint an intersection, in both WGS-84 and RT90, but the RT90 point does not end up where it should be. I have double checked that the RT90 coordinates are correct by transforming them to WGS-84. See my attached screenshot. http://n2.nabble.com/file/n4438959/rt90_mapserver_error.jpg For the WGS-84 point I have the following projection parameters: PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END And the RT90 point has: PROJECTION proj=tmerc lat_0=0 lon_0=15.808278 k=1 x_0=150 y_0=0 ellps=bessel units=m no_defs END I have also tried all the other RT90 projections provided by Spatialreference.org, just to see if any of them would work better, but without luck. Have I made a mistake somewhere, or are there any suggestions of why this error occurs? I'm out of ideas. Regards, Sofia -- View this message in context: http://n2.nabble.com/Projection-error-RT90-in-MapServer-tp4438 959p4438959.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
SV: [mapserver-users] Projection error, RT90 in MapServer
Hi Jukka, Thank you, I tried adding your line to my RT90 projection parameter list now, but it didn't help. The point moved 50 meters or so, but not in the right direction. (See attached screenshot.) Regards, Sofia Från: Rahkonen Jukka [jukka.rahko...@mmmtike.fi] Skickat: den 22 januari 2010 11:16 Till: Sofia Bryntse; mapserver-users@lists.osgeo.org Ämne: Re: [mapserver-users] Projection error, RT90 in MapServer Hi, Have you tried adding 'towgs84=0,0,0,0,0,0,0' also to RT90 definitions? -Jukka Rahkonen- -Alkuperäinen viesti- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Fia Lähetetty: 22. tammikuuta 2010 10:56 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Projection error, RT90 in MapServer Hello, I have a problem showing data in the former Swedish standard reference system RT90 2,5 gon V. The point is projected ~250 meters northwest of where it should be. I have used the projection parameters for MapServer from Spatialreference.org. The underlying map projection is SWEREF 99 TM (the new standard Swedish reference system), with the following projection parameters: PROJECTION 'proj=utm' 'zone=33' 'ellps=GRS80' 'towgs84=0,0,0,0,0,0,0' 'units=m' 'no_defs' END I have then tested to pinpoint an intersection, in both WGS-84 and RT90, but the RT90 point does not end up where it should be. I have double checked that the RT90 coordinates are correct by transforming them to WGS-84. See my attached screenshot. http://n2.nabble.com/file/n4438959/rt90_mapserver_error.jpg For the WGS-84 point I have the following projection parameters: PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END And the RT90 point has: PROJECTION proj=tmerc lat_0=0 lon_0=15.808278 k=1 x_0=150 y_0=0 ellps=bessel units=m no_defs END I have also tried all the other RT90 projections provided by Spatialreference.org, just to see if any of them would work better, but without luck. Have I made a mistake somewhere, or are there any suggestions of why this error occurs? I'm out of ideas. Regards, Sofia -- View this message in context: http://n2.nabble.com/Projection-error-RT90-in-MapServer-tp4438 959p4438959.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users attachment: rt90_towgs84.JPG___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
Re: [mapserver-users] Projection error, RT90 in MapServer
Hi, How about these parameters? +proj=tmerc +lat_0=0 +lon_0=15.808278 +k=1 +x_0=150 +y_0=0 +ellps=bessel +units=m +towgs84=414.0978567149,41.3381489658,603.0627177516,-0.8550434314,2.1413465,-7.0227209516,0 +no_defs Taken from http://www.zonefivesoftware.com/SportTracks/Forums/viewtopic.php?t=3543postdays=0postorder=ascstart=25 By the way, I suppose the unint in your WGS84 definition are wrong. Maybe you do not need the line at all. PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END -Jukka- -Alkuperäinen viesti- Lähettäjä: Sofia Bryntse [mailto:sofia.bryn...@et.slu.se] Lähetetty: pe 22.1.2010 16:09 Vastaanottaja: Rahkonen Jukka; mapserver-users@lists.osgeo.org Aihe: SV: [mapserver-users] Projection error, RT90 in MapServer Hi Jukka, Thank you, I tried adding your line to my RT90 projection parameter list now, but it didn't help. The point moved 50 meters or so, but not in the right direction. (See attached screenshot.) Regards, Sofia Från: Rahkonen Jukka [jukka.rahko...@mmmtike.fi] Skickat: den 22 januari 2010 11:16 Till: Sofia Bryntse; mapserver-users@lists.osgeo.org Ämne: Re: [mapserver-users] Projection error, RT90 in MapServer Hi, Have you tried adding 'towgs84=0,0,0,0,0,0,0' also to RT90 definitions? -Jukka Rahkonen- -Alkuperäinen viesti- Lähettäjä: mapserver-users-boun...@lists.osgeo.org [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta Fia Lähetetty: 22. tammikuuta 2010 10:56 Vastaanottaja: mapserver-users@lists.osgeo.org Aihe: [mapserver-users] Projection error, RT90 in MapServer Hello, I have a problem showing data in the former Swedish standard reference system RT90 2,5 gon V. The point is projected ~250 meters northwest of where it should be. I have used the projection parameters for MapServer from Spatialreference.org. The underlying map projection is SWEREF 99 TM (the new standard Swedish reference system), with the following projection parameters: PROJECTION 'proj=utm' 'zone=33' 'ellps=GRS80' 'towgs84=0,0,0,0,0,0,0' 'units=m' 'no_defs' END I have then tested to pinpoint an intersection, in both WGS-84 and RT90, but the RT90 point does not end up where it should be. I have double checked that the RT90 coordinates are correct by transforming them to WGS-84. See my attached screenshot. http://n2.nabble.com/file/n4438959/rt90_mapserver_error.jpg For the WGS-84 point I have the following projection parameters: PROJECTION 'proj=longlat' 'ellps=WGS84' 'datum=WGS84' 'no_defs' 'units=m' END And the RT90 point has: PROJECTION proj=tmerc lat_0=0 lon_0=15.808278 k=1 x_0=150 y_0=0 ellps=bessel units=m no_defs END I have also tried all the other RT90 projections provided by Spatialreference.org, just to see if any of them would work better, but without luck. Have I made a mistake somewhere, or are there any suggestions of why this error occurs? I'm out of ideas. Regards, Sofia -- View this message in context: http://n2.nabble.com/Projection-error-RT90-in-MapServer-tp4438 959p4438959.html Sent from the Mapserver - User mailing list archive at Nabble.com. ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users ___ mapserver-users mailing list mapserver-users@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/mapserver-users
