xm_sat_image


NAME
     xm_rsat_image - RGB Raster format for the xmap8 program

SYNOPSIS
     xm_sat_image - Input File Format

DESCRIPTION
     The raster file is a 2D or RGB  raster  image  file.  (There
     will be several formats available for input.)  For now files
     are read in in ASCII format defined below.


FORMAT
     Image Data may be imported into Xmap8 via either simple ascii files
     (format below)

     ---------------------------------------------------------------
     Ascii image input:
     The files are arranged with a simple header line
     describing a corner of the image and the X-Y dimensions of each block.
     Then an RGB pixel is read in in order from the corner
     across each row.
     NX = number in X direction (columns, horizontal)
     NY = number in Y direction (rows, vertical)
     lat =  latitude of corner, positive north
     lon =  longitude of corner, positive east
     x,y = (x and y of corner in km) ignore these for now
     DX = delta X in km
     DY = delta Y in km
     CO = corner designation

     The corner designation is a 2 letter code :
     UL = Upper Left
     LL = Lower Left
     UR = Upper Right
     LR = Lower Right

     header format example:
     # NX NY lat lon x y Dx Dy CO

     -------------------------- EXAMPLE FILE INPUT -------------------------
     # NX NY lat lon x y Dx Dy CO
     R(1) G(1) B(1)
     R(2) G(2) B(2)
     R(NX*NY) G(NX*NY) B(NX*NY)


     -------------------------- EXAMPLE FILE INPUT -------------------------
     # 305 367 36.087334 -117.849266  0.000000 0.000000 0.030000 0.030000 UL
     236 241 245
     185 209 223
     150 171 170
     150 184 206
     134 157 201
     142 157 187
     118 120 142
     142 157 150
     159 171 194


SEE ALSO

xmap8      
xm_color      
xm_hypo      
xm_map       
xm_menu       
xm_origin       
xm_points
xm_raster
xm_station      
xm_well      
xm_wire      
xm_xsec      
xm_ellipse


  • Xmap8: Three-dimensional GIS for Geology and Geophysics.

    REFERENCES see article by J. M. Lees: Lees, J. M. (1995) Xmap8: Three-dimensional GIS for geology and geophysics, Seismological Research Letters: 66, 33-37.

    Address:

      
          Prof. Jonathan M. Lees
          Yale Geology Dept.
          P.O. Box 208109
          New Haven, CT  06520-8109
          (203)432-6947
          lees@love.geology.yale.edu