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ClearViewPort
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Declaration:
procedure ClearViewPort;
Example:
To clear out the area bounded by (100, 100) at the upper left corner, and
(400, 300) at the lower right corner, write:
SetViewPort ( 100, 100, 400, 300, ClipOn );
ClearViewPort;
Purpose:
Use ClearViewPort to erase or clear the graphical screen area within the
currently defined viewport, resetting the current pointer (CP) to (0,0)
(relative to the viewport). By setting a view port smaller than the screen,
you can use ClearViewPort to selectively clear just a portion of the screen.
See ClearDevice, SetViewPort
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Birth of a Hurricane
Summer storms are a regular feature in the North Atlantic, and while most pose little threat to our shores, a choice few become devastating hurricanes. To decipher which storms could bring danger, and which will not, atmospheric scientists are heading to the tropics to observe these systems as they form and dissipate--or develop into hurricanes. By learning to identify which weather systems are the most critical to track, the efforts may ultimately allow for earlier hurricane ...
More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=117388&WT.mc_id=USNSF_51&WT.mc_ev=click
This is an NSF News item.
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