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Re: circles [message #9517 is a reply to message #9516]

Wed, 09 July 1997 00:00

David Foster
Messages: 341
Registered: January 1996

Senior Member

lady of the elves wrote:
>
> [incidentally, I'm new to this language :)]
>
> I'm trying to create a two-dimensional array, such that tvscl of the
> array will show a filled circle. So far, my best idea has not
> worked--but here it is:
>
> x and y are one-D arrays of 200 elements such that plot,x,y produces a
> circular shape, but not filled.
>

You can use the POLYFILLV to get the subscripts of the circular region
defined by vectors X and Y:

circle = polyfillv(x,y,xarray_size,y_array_size)
if (circle(0) ne -1 ) then array(circle) = 2

or you can use the POLYFILL procedure to fill the circle directly
on the graphics device.

Dave

--

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2200
La Jolla, CA 92037
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~

"I have this theory that if we're told we're bad,
then that's the only idea we'll ever have.
But maybe if we are surrounded in beauty,
someday we will become what we see." - Jewel Kilcher

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[Message index]

		Re: circles By: Kevin Reardon on Fri, 11 July 1997 00:00
		Re: circles By: pit on Thu, 10 July 1997 00:00
		Re: circles By: Joseph M Zawodny on Thu, 10 July 1997 00:00
		Re: circles By: Martin Lizak (NEI) on Wed, 09 July 1997 00:00
		Re: circles By: David Foster on Wed, 09 July 1997 00:00

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