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> 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 > *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 > <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 > *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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