Ticket #2902 (closed defect: fixed)

Opened 3 years ago

Last modified 3 years ago

ERS shows 8 bit signed integer datasets as unsigned integer.

Reported by: gaopeng Owned by: warmerdam
Priority: normal Milestone: 1.6.1
Component: GDAL_Raster Version: 1.6.0
Severity: normal Keywords: ERS
Cc:

Description

Two issues: - existing 8 bit signed integer ERS datasets show up as unsigned int. - saving a 8 bit signed int dataset (IMG) to ERS is converted to unsigned

Change History

Changed 3 years ago by rouault

  • owner changed from Frank Warmerdam to warmerdam

(I've corrected Frank Warmerdam's osgeo id)

Changed 3 years ago by warmerdam

  • keywords ERS added
  • status changed from new to closed
  • resolution set to fixed

In trunk (r16734) the default CreateCopy?() implementation has been altered to try and preserve the NBITS and PIXELTYPE source image structure metadata if it seems to make sense.

In trunk (r16735) the ERS driver has been altered to support reporting PIXELTYPE=SIGNEDBYTE and to honour the PIXELTYPE=SIGNEDBYTE creation option.

In trunk (r16733) a modest test of the above capability has been added to the ers.py script.

The r16735 and r16734 changes have been applied in 1.6 branch (r16736).

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