[Qgis-user] Coordinates in map units are different between ArcInfo and Qgis

[Mark Seibel]

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.Tudorache at 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 at 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-bounces at lists.osgeo.org
> <qgis-user-bounces at lists.osgeo.org>] *On Behalf Of *Mark Seibel
> *Sent:* March-07-17 11:18 AM
> *To:* Tudorache, Marian
> *Cc:* qgis-user at 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
>
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