wrong pixel size when converting to RST

[johanvdw]

When converting from a SAGA grid file or a tif, gdal_translate outputted an RST file with the wrong pixel size.

Full log below.

Ascii version of the example file here: ​https://gist.github.com/johanvdw/b862b3111b400448431c39a1b6cfe9a7

C:\Users\jvdak06\Desktop\watem-test>gdal_translate --version

GDAL 2.1.2, released 2016/10/24

C:\Users\jvdak06\Desktop\watem-test>gdalinfo p5bol.sdat

Driver: SAGA/SAGA GIS Binary Grid (.sdat)
Files: p5bol.sdat
       p5bol.sdat.aux.xml
       p5bol.sgrd
Size is 33, 42
Coordinate System is `'
Origin = (-2.000000000000000,208.000000000000000)
Pixel Size = (5.000000000000000,-5.000000000000000)
Corner Coordinates:
Upper Left  (      -2.000,     208.000)
Lower Left  (  -2.0000000,  -2.0000000)
Upper Right (     163.000,     208.000)
Lower Right ( 163.0000000,  -2.0000000)
Center      (      80.500,     103.000)
Band 1 Block=33x1 Type=Float32, ColorInterp=Undefined
  Min=50.000 Max=99.989
  Minimum=50.000, Maximum=99.989, Mean=82.966, StdDev=10.775
  NoData Value=-99999
  Metadata:
    STATISTICS_MAXIMUM=99.989219665527
    STATISTICS_MEAN=82.965540347849
    STATISTICS_MINIMUM=50
    STATISTICS_STDDEV=10.774532481474

C:\Users\jvdak06\Desktop\watem-test>gdal_translate p5bol.sdat -of "RST" p5bol.rst

Input file size is 33, 42
0...10...20...30...40...50...60...70...80...90...100 - done.

C:\Users\jvdak06\Desktop\watem-test>gdalinfo p5bol.rst

Driver: RST/Idrisi Raster A.1
Files: p5bol.rst
       p5bol.rst.aux.xml
       p5bol.rdc
Size is 33, 42
Coordinate System is:
LOCAL_CS["Plane",
    UNIT["Meter",1]]
Origin = (0.000000000000000,42.000000000000000)
Pixel Size = (1.000000000000000,-1.000000000000000)
Corner Coordinates:
Upper Left  (   0.0000000,  42.0000000)
Lower Left  (   0.0000000,   0.0000000)
Upper Right (  33.0000000,  42.0000000)
Lower Right (  33.0000000,   0.0000000)
Center      (  16.5000000,  21.0000000)
Band 1 Block=33x1 Type=Float32, ColorInterp=Gray
  Min=50.000 Max=99.989
  Minimum=50.000, Maximum=99.989, Mean=82.966, StdDev=10.775
  NoData Value=-99999
  Unit Type: unspecified
  Metadata:
    STATISTICS_MAXIMUM=99.989219665527
    STATISTICS_MEAN=82.965540347849
    STATISTICS_MINIMUM=50
    STATISTICS_STDDEV=10.774532481474

[Even Rouault]

In 36495:

Idrisi/RST creation: use geotransform of source dataset even if it doesn't have a SRS (fixes #6727)

[Even Rouault]

In 36496:

Idrisi/RST creation: use geotransform of source dataset even if it doesn't have a SRS (fixes #6727)