I can but we use GRS80 not WGS84. Can I work with WGS84? Thanks, Marian
From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Mark Seibel Sent: March-09-17 1:47 PM To: Tudorache, Marian Cc: qgis-user@lists.osgeo.org Subject: Re: [Qgis-user] Coordinates in map units are different between ArcInfo and Qgis I would project them it to another coordinate system with ARC. Can you project them to a geographic coordinate system like EPSG: 4326 (WGS84), or projected coordinate system? Mark On Thu, Mar 9, 2017 at 1:33 PM, Tudorache, Marian <marian.tudora...@navcanada.ca<mailto:marian.tudora...@navcanada.ca>> wrote: Hi again Mark, It seems the reason why I get different x and y in ArcInfo is because I have to transform those coordinate based on magnetic declination. Could you tell me how can I modify the projection string +proj-sterea +lat_0=53.5 + lon_0=-76.0 +k=0.9996 +x_0=0.0 +y_0=0.0 +a=631816.16075 +b=631816.16075 +units=m +nodefs So I can include the magnetic declination? I want to try to see what will be the coordinate when I use true North and magnetic North. Thank you, Marian From: Tudorache, Marian Sent: March-07-17 1:19 PM To: 'Mark Seibel' Cc: qgis-user@lists.osgeo.org<mailto:qgis-user@lists.osgeo.org> Subject: RE: [Qgis-user] Coordinates in map units are different between ArcInfo and Qgis Hi Mark, The projection that I use in Qgis and ArcInfo is: QGIS: +proj-sterea +lat_0=53.5 + lon_0=-76.0 +k=0.9996 +x_0=0.0 +y_0=0.0 +a=631816.16075 +b=631816.16075 +units=m +nodefs ArcInfo: has different representation but the same thing: Projection STEREOGRAPHIC Datum NONE Zunits NO Units METERS XShift 0.00000000000 YShift 0.00000000000 Parameters 631816.16075 0.00000000000 1 /* Projection type < 1 | 2 > 631816.16075 /*radius of sphere of reference -76 0 0.000 /* longitude of center of projection 53 30 0.000 /* latitude of center of projection 0.00000 /* false easting (meters) 0.00000 /* false westing (meters) One more thing ArcInfo uses directive COORDINATES in AML to extract the coordinates. Thanks, Marian From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Mark Seibel Sent: March-07-17 11:18 AM To: Tudorache, Marian Cc: qgis-user@lists.osgeo.org<mailto:qgis-user@lists.osgeo.org> Subject: Re: [Qgis-user] Coordinates in map units are different between ArcInfo and Qgis Hi. Can somebody explain me why coordinates in map units read by Qgis are different than those read by ArcInfo? How can I make the two coordinates to be the same? What is the projection of the arc/info coverage? Is QGIS set to the same projection? Mark ________________________________ This electronic message, as well as any transmitted files included in the electronic message, may contain privileged or confidential information and is intended solely for the use of the individual(s) or entity to which it is addressed. If you have received this electronic message in error please notify the sender immediately and delete the electronic message. Any unauthorized copying, disclosure or distribution of the electronic message is strictly forbidden. NAV CANADA accepts no liability for any damage caused by any virus and/or other malicious code transmitted by this electronic communication. Le présent message électronique et tout fichier qui peut y être joint peuvent contenir des renseignements privilégiés ou confidentiels destinés à l’usage exclusif des personnes ou des organismes à qui ils s’adressent. Si vous avez reçu ce message électronique par erreur, veuillez en informer l’expéditeur immédiatement et supprimez le. Toute reproduction, divulgation ou distribution du présent message électronique est strictement interdite. NAV CANADA n’assume aucune responsabilité en cas de dommage causé par tout virus ou autre programme malveillant transmis par ce message électronique.
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