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- Path: sparky!uunet!ulowell!m2c!bu.edu!inmet!noc.near.net!MathWorks.Com!nuntius
- From: little@mathworks.com (John Little)
- Newsgroups: comp.soft-sys.matlab
- Subject: Re: Figure/image update question.
- Message-ID: <C1HKpB.9Hx@MathWorks.COM>
- Date: 27 Jan 93 00:15:11 GMT
- References: <BGEORGE.93Jan25120412@grumpy.sanders.lockheed.com>
- Sender: news@MathWorks.COM (Usenet News Account)
- Organization: The MathWorks, Inc.
- Lines: 26
- X-Useragent: Nuntius v1.1
-
- In article <BGEORGE.93Jan25120412@grumpy.sanders.lockheed.com> E. Bryan
- George, bgeorge@grumpy.sanders.lockheed.com writes:
- >In article <1993Jan21.230058.5077@julian.uwo.ca> craigj@irus.rri.uwo.ca
- ( Craig
- >Jones) writes:
- >
- > What I am doing is reading in an 8-bit image and would like to
- > pick some points on it. I can plot the points on the image
- > but every point that is plotted Matlab clears the figure and
- > redraws the whole thing. This is WAY too slow.
- >
- > What I am hoping is that there is some way in Matlab to turn
- > off the redraw/refresh??
- >
- >In Matlab 4, you can do this by specifiying a plot as a graphics
- >object then using the 'set' command to change the data in the plot
- >without redrawing the axis. Look at ODE23P for further clues.
-
-
- Another thing you can do is use the "EraseMode" property of line objects.
- This allows you to control the technique MATLAB uses to draw and erase
- line objects. Possibilities are "normal", "none", "xor", and
- "background".
- Look at a guide or grep in the demo M-files for examples...
-
- John Little
-