NAME: posarr PURPOSE: (one line only) Generate array of positions that match an image DESCRIPTION: CATEGORY: Miscellaneous CALLING SEQUENCE: posarr,nx,ny,xarr,yarr INPUTS: nx - width of array ny - height of array OPTIONAL INPUT PARAMETERS: KEYWORD INPUT PARAMETERS: X0 - location of the X origin in the image, default=0 Y0 - location of the Y origin in th eimage, default=0 SCALE - scale factor of image pixel to your desired x,y scale, default=1.0 OUTPUTS: xarr - Array with the x position of each pixel in the array value yarr - Array with the y position KEYWORD OUTPUT PARAMETERS: COMMON BLOCKS: SIDE EFFECTS: RESTRICTIONS: PROCEDURE: MODIFICATION HISTORY: 2016/09/23, Written by Marc W. Buie, Southwest Research Institute