[Gvsig_english] Problems with EPSG.21781

[FANGER Lorenz]

Hi List

Thanks for the answers. 

Well the hack with the user CRS works fine for shapes and wms but not for postgis-datas. With postgis-datas the following error was thrown in the information console:

null 
java.nio.BufferUnderflowException: null     
java.nio.Buffer.nextGetIndex(Unknown Source)     
java.nio.HeapByteBuffer.getInt(Unknown Source
com.iver.cit.gvsig.fmap.drivers.jdbc.postgis.PostGisDriver.getFieldValue(PostGisDriver.java:466)
com.iver.cit.gvsig.fmap.drivers.jdbc.postgis.PostGisFeatureIterator.next(PostGisFeatureIterator.java:171
com.iver.cit.gvsig.fmap.drivers.featureiterators.ReprojectWrapperFeatureIterator.next(ReprojectWrapperFeatureIterator.java:92) com.iver.cit.gvsig.fmap.layers.FLyrVect._draw(FLyrVect.java:437)     com.iver.cit.gvsig.fmap.layers.FLyrVect.draw(FLyrVect.java:631) com.iver.cit.gvsig.fmap.DefaultMapContextDrawer.draw(DefaultMapContextDrawer.java:209) com.iver.cit.gvsig.fmap.DefaultMapContextDrawer.draw(DefaultMapContextDrawer.java:175) com.iver.cit.gvsig.fmap.MapContext.draw(MapContext.java:1092)     
com.iver.cit.gvsig.fmap.MapControl$PaintingRequest.paint(MapControl.java:1043)     
com.iver.cit.gvsig.fmap.MapControl$Drawer2$Worker.run(MapControl.java:1234)     
java.lang.Thread.run(Unknown Source)

Therefor I would like to check the hack from Frank. But as I'm new in that proj-stuff I have no idea where to find the PROJ.4 epsg init file. And is just enough to change the <21781> entry in that file and afterwards to restart the program? Thanks for helping a greenhorn.

Freundliche Grüsse
Lorenz Fanger
 
---------------------------------------------------------
Lorenz Fanger
Dipl. Natw. ETH & MSc (GIS)
 
CSD Ingenieure und Geologen AG
Rathaus, Postfach 34
7430 Thusis
Tel. +41 (0)81 632 15 00
Fax +41 (0)81 632 15 01
e-mail: l.fanger at csd.ch   www.csd.ch


> 
> Folks,
> 
> I examined the current PROJ.4 epsg init file and for 21781 it uses:
> 
> # CH1903 / LV03
> <21781> +proj=somerc +lat_0=46.95240555555556 
> +lon_0=7.439583333333333 +k_0=1 
> +x_0=600000 +y_0=200000 +ellps=bessel 
> ++towgs84=674.374,15.056,405.346,0,0,0,0
> +units=m +no_defs  <>
> 
> I have tried this and do not get the mentioned error.  I 
> believe there was an error in the epsg init file in some 
> versions of PROJ.4 so replacing the <21781> entry in the init 
> file will hopefully correct the issue till it is upgraded.
> 
> Best regards,
> -- 
> ---------------------------------------+----------------------
> ----------
> ---------------------------------------+------
> I set the clouds in motion - turn up   | Frank Warmerdam, 
> warmerdam at pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial 
> Programmer for Rent
> 
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