S57 fails reading a feature properly

[cgtveen]

An s57 cell contains features of RDOCAL which are not decoded properly. 7cs viewer renders the feature in question with the following attributes:

FOID (110, 5384197, 1)
RecordID DK2KATGS.000/FE2169
Primitive Point
[COMCHA] ´74´
[DATSTA] 20070701
[INFORM] Great Belt VTS Sector 1
[ORIENT] 210
[TRAFIC] one-way(3)

ogrinfo -al:

OGRFeature(RDOCAL):2168
  RCID (Integer) = 2169
  PRIM (Integer) = 1
  GRUP (Integer) = 2
  OBJL (Integer) = 104
  RVER (Integer) = 1
  AGEN (Integer) = 110
  FIDN (Integer) = 5384197
  FIDS (Integer) = 1
  LNAM (String) = 006E005228050001
  LNAM_REFS (StringList) = (null)
  FFPT_RIND (IntegerList) = (null)
  COMCHA (String) = (null)
  DATEND (String) = (null)
  DATSTA (String) = (null)
  NOBJNM (String) = (null)
  OBJNAM (String) = (null)
  ORIENT (Real) = (null)
  PEREND (String) = (null)
  PERSTA (String) = (null)
  STATUS (String) = (null)
  TRAFIC (Integer) = (null)
  INFORM (String) = (null)
  NINFOM (String) = (null)
  NTXTDS (String) = (null)
  SCAMAX (Integer) = (null)
  SCAMIN (Integer) = (null)
  TXTDSC (String) = (null)
  RECDAT (String) = (null)
  RECIND (String) = (null)
  SORDAT (String) = (null)
  SORIND (String) = (null)
  POINT (11.0558333 56.0)

The difference in pick info between 7cs and ogrinfo proves that the feature is not properly decoded.

Further investigation between a working RDOCAL and a non-working:

Using 8211dump i found the following info:

  DDFField:
      Tag = `FOID'
      DataSize = 9
      Data = `n\00\05(R\00\01\00\1E'
      Subfield `AGEN' = 110
      Subfield `FIDN' = 5384197
      Subfield `FIDS' = 1
  DDFField:
      Tag = `ATTF'
      DataSize = 55
      Data = `M\00\B474\B4\1F\AC\003\1Fu\00210\1FV\0020070701\1Ff\00Great
Belt...'

It is obvious that eg ch '74' is included also traffic (00)3 seems to be there

And here is the same for a RDOCAL that works

  DDFField:
      Tag = `FOID'
      DataSize = 9
      Data = `n\00\FF'R\00\01\00\1E'
      Subfield `AGEN' = 110
      Subfield `FIDN' = 5384191
      Subfield `FIDS' = 1
  DDFField:
      Tag = `ATTF'
      DataSize = 44
      Data = `M\00'11'\1F\AC\003\1Fu\00160\1Ff\00Great Belt VTS Sector...'
      Subfield `ATTL' = 77
      Subfield `ATVL' = `'11''
      Subfield `ATTL' = 172
      Subfield `ATVL' = `3'
      Subfield `ATTL' = 117
      Subfield `ATVL' = `160'
      Subfield `ATTL' = 102
      Subfield `ATVL' = `Great Belt VTS Sector 2'

Could be that the delimiter scheme based on different feature encodings provided by iso8211/s57 is not fully implemented ? However we are not fluent in the code, nor the standard to verify, so it will only be a suggestion.

[Jukka Rahkonen]

Could it be possible to get a small sample file for testing?

[Even Rouault]

This ticket has been automatically closed because Trac is no longer used for GDAL bug tracking, since the project has migrated to GitHub. If you believe this ticket is still valid, you may file it to ​https://github.com/OSGeo/gdal/issues if it is not already reported there.