**fScan Reference Manual, Chapter 2 (CmdLineOptions:Expr): Ramp**
===== Ramp -- Generate an image volume with spatially ramped intensity values=====
 **usage:  -e ramp axis**\\

The RAMP command generates an image data set with the same dimensions as the current active data set, and sets the image intensity at each voxel to be a function of the spatial dimension along one axis.  Which axis, and direction of ramp, is specified by the argument as:\\
  AXIS:  1 - X Horizontal, values increasing
         2 - Y Vertical, values increasing
         3 - Z Slice, values increasing
         4 - T Time, values increasing
        -1 - X Horizontal, values decreasing
        -2 - Y Vertical, values decreasing
        -3 - Z Slice, values decreasing
        -4 - T Time, values decreasing

**See Also:**\\
[[jvs:fscan|fScan Home]], 
[[jvs:fscan:manual|fScan Manual]], 
[[jvs:fscan:manual:chapter2|CmdLineOptions]], 
[[jvs:fscan:manual:chapter2:expression|Expression Command]], 
[[jvs:fscan:manual:help|Manual Help]]