HIC_Abort...

PURPOSE

Aborts traversal in progress.

CALLING SEQUENCE

HIC_Abort_Update (nr)

HIC_Abort_Selection (nr)

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nr   HT_Rendition   Net rendition. Passed by reference.  
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DETAILS

These functions set flags to signal the system that you wish to abort the traversal in progress. The first is for use in the "draw ..." callbacks and the second for the "select ..." callbacks.

The system can abort the traversal at an appropriate time after this function is called. On abortion the database is returned to its pretraversal state. In the case of abortion of a display update, the display is left in its partially drawn condition.

NOTES

HIC_Abort_Selection has no effect if you call it from other than a "select ..." callback function.

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HIC_Add_Cutting_Plane

PURPOSE

Adds a cutting plane to affect subsequent geometry.

CALLING SEQUENCE

HIC_Add_Cutting_Plane (nr, plane)
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nr    HT_Rendition    Rendition. Passed by reference
plane    HT_Cutting_Plane    new cutting plane
------------------------------------------------------------------

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