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Cut a slice through the 3-D image variable VarName with the specified end points. UNIT is a keyword indicating in which units the end ponts coordinates are specified. It can be PIXELS, DEGREE, MINUTE, SECOND, RADIAN, of ABSOLUTE. For ABSOLUTE, Start1 and End1 are assumed to be in hours and Start2 End2 in degrees, with sexagesimal notation allowed.
[DISPLAY\]SLICE VarName StartX StartY Unit ANGLE AngleValue
This alternate syntax allows to specify a starting point and an orientarion of the slice. The coordinates StartX StartY are in the angular unit specified by Unit (which can be ABSOLUTE) AngleValue is in Degree. The Slice length will be automatically computed to intersect the whole cube. This syntax can be more convenient to compare parallel slices, or slices intersecting at a common point that can be specified by StartX StartY.
[DISPLAY\]SLICE
This simple syntax will call the cursor IF and ONLY IF the current display is that of a single plane (a pure 2-D array or one plane of 3-D array). The start and end point can then be defined interactively.
In all case, the result is available in the SLICED image variable, and can be displayed by SHOW SLICED.