[Mapserver-users] Change layerobj's data property

Homme Zwaagstra hrz at geodata.soton.ac.uk
Fri Jan 16 07:47:36 EST 2004


Hello,

I have a problem with mapserver 3.5 (a fuzzy memory to many of you, I
know!) that I'm hoping someone will be able to shed some light
on. I have a raster layer with a default data property that extends
the SHAPEPATH:

LAYER
  NAME nhs_direct
  TYPE RASTER
  STATUS ON
  DATA nhs_direct_live/6-11-2003_2.tiff
  OFFSITE 0
  PROJECTION
          "proj=tmerc"
          "lat_0=49.000000000"
          "lon_0=-2.000000000"
          "k=0.999601"
          "y_0=-100000.000"
          "x_0=400000.000"
          "ellps=airy"
          "towgs84=375,-111,431,0,0,0,0"
          "units=m"
  END
END

I have many hundreds of rasters representing the same area but for
different temporal windows. Using PHP Mapscript I'm wanting to change
the data property, based on user date selection, to display the
correct raster. Something like this:

$layerObj = $mapObj->getlayerByName('nhs_direct');
$layerObj->data = 'nhs_direct_live/7-01-2002_2.tiff'

This doesn't seem to have any effect, however, and the original file
that DATA points to is always displayed.

System Details:
MapServer version 3.5 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP SUPPORTS=PROJ
SUPPORTS=TTF SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT INPUT=TIFF
INPUT=EPPL7 INPUT=JPEG INPUT=POSTGIS INPUT=OGR INPUT=GDAL
INPUT=SHAPEFILE
PHP Version 4.0.6
Apache/1.3.27 
gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-112.7.1)

Can anyone think of a solution? Is it time to bite the bullet and
upgrade?!

Regards,

Homme Zwaagstra

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