[gdal-dev] FIDN-issue

[s duclos]

Nikhil,


I loaded your S57. Here's a typical output for FIDN in US500001.000

S52.c:2719 in S52_loadLayer(): LOADING LAYER NAME: LIGHTS
S57ogr.c:81 in _setAtt(): FIDN:44884
S57ogr.c:81 in _setAtt(): FIDN:44877
S57ogr.c:81 in _setAtt(): FIDN:44885
S57ogr.c:81 in _setAtt(): FIDN:1521038204     // --> 44886 !
S57ogr.c:81 in _setAtt(): FIDN:-1257713504    // --> 44887 !
S57ogr.c:81 in _setAtt(): FIDN:-72495485        // --> 44888 !
S57ogr.c:81 in _setAtt(): FIDN:-2048579800    // --> 44889 !
S57ogr.c:81 in _setAtt(): FIDN:44880
S57ogr.c:81 in _setAtt(): FIDN:44872
S57ogr.c:81 in _setAtt(): FIDN:44881
S57ogr.c:81 in _setAtt(): FIDN:44873
S57ogr.c:81 in _setAtt(): FIDN:44882
S57ogr.c:81 in _setAtt(): FIDN:44874
S57ogr.c:81 in _setAtt(): FIDN:44883
S57ogr.c:81 in _setAtt(): FIDN:44875
S57ogr.c:81 in _setAtt(): FIDN:44876
S57ogr.c:81 in _setAtt(): FIDN:44879
S57ogr.c:81 in _setAtt(): FIDN:44878
S57ogr.c:81 in _setAtt(): FIDN:44886
S57ogr.c:81 in _setAtt(): FIDN:44887
S57ogr.c:81 in _setAtt(): FIDN:2054113595    // --> 44888 !



This chart is in the Indian Ocean in the middle of nowhere !

Sound like a chart you've made yourself. That lead me to think
that the culprit might be the soft that made this S57.

Most of your FIDN seem consistent but, for example, the 4th line:

1521038204 should be 44886



Sound like a rollover or something like that ..


rgds,

Sylvain.



>________________________________
> From: Nikhil Sai Parupalli <nikhil.parupalli at iictechnologies.com>
>To: "gdal-dev at lists.osgeo.org" <gdal-dev at lists.osgeo.org> 
>Cc: 'Frank Warmerdam' <warmerdam at pobox.com>; 's duclos' <sylvain_duclos at yahoo.com> 
>Sent: Tuesday, December 11, 2012 2:19:26 AM
>Subject: FIDN-issue
> 
>
> 
>Hi ,
> 
>In my application I am fetching S57 data set where it is fetching FIDN with negative value which is wrong  because FIDN should be in Range: 1 to 2 power 32-1
>Is there any instance that any one got the same issue.
>If the same data source is loaded in Caris Easy view it is showing some other legal value.
> 
>Please load the sample data with any application in open source it will show the same as mentioned above
> 
> 
> 
> 
> 
>Thanks and Regards
>Nikhil Sai Parupalli
> 
>
>