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   Etch  

Draw a plot of body boundaries and intersections using ray tracing to find discontinuities in surfaces on the projected view plane.

ETCH uses the same logic as COLOR, and hence has the same requirements that a finite spatial window must be defined (Spatial Window), and some non-transparent cells must exist in the geometry model. Only nontransparent cells are displayed.

An ETCH plot superimposed on a COLOR plot will be in the proper position. The screen is NOT cleared before the ETCH 'd drawing (use Clear to clear screen if desired).

While the picture is being made, a Working dialog appears that may be used to terminate the processing of the picture.

ETCH is the only method for displaying all the MCNP geometry surface types on a monochrome terminal display.

More on Ray Tracing