[Qgis-user] Export to new Projektion

2011-06-20 Thread Claas Leiner 

Hi,

When I Export a Shapefile from ETRS89/UTM 32 to DHDN Gauss-Krueger 3 the 
new Layer is more then 150 m wrong. When In export from ETRS89/UTM 32 to 
wgs84 und then from wgs84 to DHDN Gauss-Kruger 3 the result ist right. 
(qgis 1.6 and qgis 1.7).


Is there a way to change the projektion fro, ETRS89 to Gk3 in one Step?

thanks for answers,

Claas
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Re: [Qgis-user] Export to new Projektion

2011-06-20 Thread Paolo Cavallini 
Il giorno lun, 20/06/2011 alle 12.40 +0200, Claas Leiner ha scritto: 
 When I Export a Shapefile from ETRS89/UTM 32 to DHDN Gauss-Krueger 3 the 
 new Layer is more then 150 m wrong. When In export from ETRS89/UTM 32 to 
 wgs84 und then from wgs84 to DHDN Gauss-Kruger 3 the result ist right. 
 (qgis 1.6 and qgis 1.7).
 
 Is there a way to change the projektion fro, ETRS89 to Gk3 in one Step?

You miss the datum shift (+towgs) parameters.
All the best.
-- 
Paolo Cavallini: http://www.faunalia.it/pc

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Re: [Qgis-user] Export to new Projektion

2011-06-20 Thread Claas Leiner 

Hi, thanks for answer

the parameters are

ETRS89 / UTm32:
+proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs

wgs84
+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs +towgs84=0,0,0

DHDN GK3:
+proj=tmerc +lat_0=0 +lon_0=9 +k=1 +x_0=350 +y_0=0 +ellps=bessel 
+towgs84=582,105,414,1.04,0.35,-3.08,8.3 +units=m +no_defs


From ETRS89/UTm32 to wgs84 and then to DHDN GK3 the result ist right
In one Step From ETRS89/UTm32 to DHDN GK3 the result ist wrong.

Claas

Am 20.06.2011 12:43, schrieb Paolo Cavallini:

Il giorno lun, 20/06/2011 alle 12.40 +0200, Claas Leiner ha scritto:

When I Export a Shapefile from ETRS89/UTM 32 to DHDN Gauss-Krueger 3 the
new Layer is more then 150 m wrong. When In export from ETRS89/UTM 32 to
wgs84 und then from wgs84 to DHDN Gauss-Kruger 3 the result ist right.
(qgis 1.6 and qgis 1.7).

Is there a way to change the projektion fro, ETRS89 to Gk3 in one Step?


You miss the datum shift (+towgs) parameters.
All the best.



--
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Re: [Qgis-user] Export to new Projektion

2011-06-20 Thread Jules Kouadio 
IMPORT AN EXCEL FILE CONTAINING (X,Y,Z) COORDINATES OF A DEW  Digital
elevation model IN GRASS
Hi.
How import an exel file containing (X,Y,Z) coordinates of a Digital
elevation model in grass or quantum ?

Jules.
*
*
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