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Examples

To convert a text file of about 10000 lines containing the columns X, Y and PIXEL VALUE into a basic HDS file. 

ICL> TEXT2HDS
INFILE - Name of input text file > M33.DAT
OUTFILE - Name of output HDS file > M33_IMAGE
NCOLS - Number of columns in the text file > 3
NROWS - Mximum number of lines in input file > 20000
CNAME1 - Name of array to hold 1st column > XAXIS
CNAME2 - Name of array to hold 2nd column > YAXIS
CNAME3 - Name of array to hold 3rd column > DATA_ARRAY
Produces: 
   M33_IMAGE.
             XAXIS(10000)
             YAXIS(10000)
             DATA_ARRAY(10000)
To convert the same file into an EVENT dataset 
ICL> TEXT2HDS EVENT OUTFILE=OUT
Produces: 
OUT                           
  .XAXIS                      
  .  .DATA_ARRAY(10000)       
  .  .UNITS                   =" "
  .  .FIELD_MIN               =  0.00000E+00
  .  .FIELD_MAX               =   9999.0
  .YAXIS                      
  .  .DATA_ARRAY(10000)       
  .  .UNITS                   =" "
  .  .FIELD_MIN               =  0.00000E+00
  .  .FIELD_MAX               =   9000.0
  .DATA_ARRAY                 
  .  .DATA_ARRAY(10000)       
  .  .UNITS                   =" "
  .  .FIELD_MIN               =  3.50000E+00
  .  .FIELD_MAX               =  512.400
If you have a SCAR descriptor file for the input file. 
ICL> TEXT2HDS SCAR EVENT
INFILE - Name of input text file > M33.DAT
DSCFILE - Name of SCAR descriptor file > DSCFM33.DAT
OUTFILE - Name of output HDS file > M33_EVENT

Web Master
Tue Oct 7 10:18:50 BST 1997