subject:"\[Qgis\-user\] How to define which CRS to use\?"

Re: [Qgis-user] How to define which CRS to use?

2015-05-05 Thread Joris Hintjens

Thanks Joost, 

You’re right, sorry, digit missing. 
shalkya is at +/- X: 7508000 Y: 5472000
> Op 30-apr.-2015, om 16:31 heeft Andre Joost  het 
> volgende geschreven:
> 
> Date: Thu, 30 Apr 2015 16:27:42 +0200
> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 
> Thunderbird/31.2.0 Hamster/2.1.0.1538
> In-Reply-To: <91c621a7-67ec-4b94-8d98-a47e770ea...@gmail.com>
> 
> Am 29.04.2015 um 18:16 schrieb Joris Hintjens:
>> Hello,
>> 
>> I have a csv file with a list of coordinates. for example one of
>> them: X  Y 12374462.4355 4877977.8396
>> 
>> notice the (to me at least) strange X coordinate: in the 12millon
>> range.
> 
> This might be a false Easting. In the Soviet Union, 3-degree or 6-degree 
> Gauss-Krueger systems based on the Pulkovo datum were common. To distinguish 
> the zones, a high value of false Easting was added.
> 
>> 
>> I know the point should land somewhere near the Kazach town of
>> Shalkya, with coordinates in the EPSG3857 (WGS 84 pseudo mercator) of
>> +/- X: 750800 Y: 5472000
> 
> These coordinates end up in the South of France for me.
> There might be one digit missing for the Easting.
> 
> 
> Greetings,
> André Joost
> 
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Re: [Qgis-user] How to define which CRS to use?

2015-04-30 Thread Andre Joost


Date: Thu, 30 Apr 2015 16:27:42 +0200
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 
Thunderbird/31.2.0 Hamster/2.1.0.1538
In-Reply-To: <91c621a7-67ec-4b94-8d98-a47e770ea...@gmail.com>

Am 29.04.2015 um 18:16 schrieb Joris Hintjens:

Hello,

I have a csv file with a list of coordinates. for example one of
them: X Y 12374462.4355 4877977.8396

notice the (to me at least) strange X coordinate: in the 12millon
range.


This might be a false Easting. In the Soviet Union, 3-degree or 6-degree 
Gauss-Krueger systems based on the Pulkovo datum were common. To 
distinguish the zones, a high value of false Easting was added.




I know the point should land somewhere near the Kazach town of
Shalkya, with coordinates in the EPSG3857 (WGS 84 pseudo mercator) of
+/- X: 750800 Y: 5472000


These coordinates end up in the South of France for me.
There might be one digit missing for the Easting.


Greetings,
André Joost

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Re: [Qgis-user] How to define which CRS to use?

2015-04-30 Thread Joris Hintjens

BINGO!

thanks a lot, Redoute. Seems correct. How did you do that, just trial and error 
until something came up? Or did you follow a certain logic?

ever grateful,
Joris

> Op 30-apr.-2015, om 10:18 heeft Redoute  het volgende 
> geschreven:
> 
> Am 29.04.2015 um 18:16 schrieb Joris Hintjens:
> 
>> XY
>> 12374462.43554877977.8396
> 
>> I know the point should land somewhere near the Kazach town of Shalkya, with 
>> coordinates in the EPSG3857 (WGS 84 pseudo mercator) of +/- X: 750800 Y: 
>> 5472000
> 
> EPSG:28412?
> found with  on page 3
> 
> HTH, Redoute
> 
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Re: [Qgis-user] How to define which CRS to use?

2015-04-30 Thread Redoute


Am 29.04.2015 um 18:16 schrieb Joris Hintjens:


X   Y
12374462.4355   4877977.8396



I know the point should land somewhere near the Kazach town of Shalkya, with 
coordinates in the EPSG3857 (WGS 84 pseudo mercator) of +/- X: 750800 Y: 5472000


EPSG:28412?
found with  on page 3

HTH, Redoute

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Re: [Qgis-user] How to define which CRS to use?

2015-04-29 Thread Joris Hintjens

Hi Nicolas,

thanks for your input. To my knowledge, feet where never used as a unit in 
former Soviet Union. I di’d’nt know that there were crs’ses in feet at all. I 
will give it a try. thanks

Joris

> Op 29-apr.-2015, om 23:38 heeft Nicolas Cadieux 
>  het volgende geschreven:
> 
> What if the coordinate where in feet instead of meters?  Where does that put 
> you? I would also look at local coordinate systems to see what they use.
> 
> Nicolas Cadieux M.Sc.
> Les Entreprises Archéotec inc. 
> 8548, rue Saint-Denis Montréal H2P 2H2
> Téléphone: 514.381.5112  Fax: 514.381.4995
> www.archeotec.ca
> 
> On Apr 29, 2015 12:14 PM, "Joris Hintjens [via OSGeo.org] " <[hidden 
> email] > wrote:
> Hello, 
> 
> I have a csv file with a list of coordinates. for example one of them: 
> X Y 
> 12374462.4355 4877977.8396 
> 
> notice the (to me at least) strange X coordinate: in the 12millon range. 
> 
> I know the point should land somewhere near the Kazach town of Shalkya, with 
> coordinates in the EPSG3857 (WGS 84 pseudo mercator) of +/- X: 750800 Y: 
> 5472000 
> 
> If I start at 0 lat and 0 long, I’m off about 5000KM. 
> 
> How can I define which sourceCRS to use? How to treat this dataset for 
> further use? 
> 
> Thanks for any suggestion. 
> 
> Joris 
> 
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Re: [Qgis-user] How to define which CRS to use?

2015-04-29 Thread Nicolas Cadieux

What if the coordinate where in feet instead of meters?  Where does that 
put you? I would also look at local coordinate systems to see what they use. 
Nicolas Cadieux M.Sc. 
Les Entreprises Archéotec inc.  
8548, rue Saint-Denis Montréal H2P 2H2 
Téléphone: 514.381.5112  Fax: 514.381.4995 
www.archeotec.ca 
On Apr 29, 2015 12:14 PM, "Joris Hintjens [via OSGeo.org]  " 
 wrote: 

Hello,
I have a csv file with a list of coordinates. for example one of them:
X   Y
12374462.4355   4877977.8396
notice the (to me at least) strange X coordinate: in the 12millon range.
I know the point should land somewhere near the Kazach town of Shalkya, with 
coordinates in the EPSG3857 (WGS 84 pseudo mercator) of +/- X: 750800 Y: 
5472000 
If I start at 0 lat and 0 long, I’m off about 5000KM.
How can I define which sourceCRS to use? How to treat this dataset for further 
use?
Thanks for any suggestion.
Joris
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[Qgis-user] How to define which CRS to use?

2015-04-29 Thread Joris Hintjens

Hello,

I have a csv file with a list of coordinates. for example one of them:
X   Y
12374462.4355   4877977.8396

notice the (to me at least) strange X coordinate: in the 12millon range.

I know the point should land somewhere near the Kazach town of Shalkya, with 
coordinates in the EPSG3857 (WGS 84 pseudo mercator) of +/- X: 750800 Y: 
5472000 

If I start at 0 lat and 0 long, I’m off about 5000KM.

How can I define which sourceCRS to use? How to treat this dataset for further 
use?

Thanks for any suggestion.

Joris

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Re: [Qgis-user] How to define which CRS to use?

Re: [Qgis-user] How to define which CRS to use?

Re: [Qgis-user] How to define which CRS to use?

Re: [Qgis-user] How to define which CRS to use?

Re: [Qgis-user] How to define which CRS to use?

Re: [Qgis-user] How to define which CRS to use?

[Qgis-user] How to define which CRS to use?

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