**CIGAL Reference Manual, Chapter 6 (RealTime): r_bdraw**
===== r_bdraw -- Draw the outline of a box =====
**usage: r_bdraw  opflg eflag ltime Intensity Box**

R_BDRAW is a REALTIME operator. It draws an unfilled rectangle on the screen.
The color is determined by the INTENSITY value, which will be mapped through
the active color lookup table to produce a color. The size and position are
determined by the BOX argument, which is a short integer array specifying a
screen region (4 values: left, top, right, bottom).

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter6|RealTime List]], 
[[jvs:cigal:manual:help|Manual Help]]