Changeset 10147

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Timestamp:
10/24/06 13:36:47 (2 years ago)
Author:
fwarmerdam
Message:

Added note on FORCE_CELLSIZE for AAIGRID.

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  • trunk/frmts/frmt_various.html

    r10112 r10147  
    2222 
    2323The NODATA value for the grid read is also preserved when available. 
    24 Grids are treated as signed 16bit integer unless the first scanline contains 
    25 decimal values in which case the image is treated as 32bit floating point. 
    2624<p> 
     25 
     26If pixels being written are not square (the width and height of a pixel in 
     27georeferenced units differ) then DX and DY parameters will be output instead 
     28of CELLSIZE.  Such files can be used in Golden Surfer, but not most other 
     29ascii grid reading programs.  For force the X pixel size to be used as CELLSIZE 
     30use the FORCE_CELLSIZE=YES creation option or resample the input to have  
     31square pixels.<P> 
    2732 
    2833The <a href="#AIG">AIG</a> driver is also available