dxsamples 4.4.0-3 / usr / share / dx / samples / data / image.dx

   # This data explorer header file will read an image ("cylinder.rgb"). The
   # image is 350 x 300 and consists of rgb colors (3-vectors)
   # You can contrast this to the header file for the general import format
   # "image.general". You can read in this image, and display it, using the
   # visual program ReadImage.net.
   #
   #
   #
   # First describe the positions. The image is written such that 
   # x varies fastest, and the first pixel in the file is the one that is
   # to be displayed at the top left.
object 1 class gridpositions 300 350
origin 0 0
delta  0 -1
delta  1 0
   # 
   # Next describe the connections
object 2 class gridconnections 300 350
   #
   # Next indicate that the data may be found in the file "cylinder.rgb", 
   # starting at byte 0.  There are three bytes (red, green, and blue) 
   # for each pixel.
object 3 class array type byte rank 1 shape 3 ieee msb items 105000 
    data file cylinder.rgb,0
    attribute "dep" string "positions"
   #
   # We will read the colors in as the "data" component. This will allow us
   # to immediately begin operating on them (for example, to convert the 
   # bytes to floating point colors)
object "image" class field
    component "positions" 1
    component "connections" 2
    component "data" 3