Clear the viewport.
This function temporarily blanks out the graphic window of the current viewport. The redraw function brings the graphics back. The grclear function always returns nil.
Example
| Code | Result |
|---|---|
| (grclear) (redraw) |
Clears the graphics
window. Returns the graphics. |
Tell me about...
(grdraw point1 point2 color [highlight])
Programming Overview of LISP (LISt Processing) Language
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