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From: Ahmad Alkandri on 24 May 2010 07:08
dear all

i have a data that i'm displaying it with the use of contour plot ... it show a single contour line like a circle ... this circle show a slice of half a peak which i need to measure it area ... is there is any way i can save the plot data as an image ( the contour look only ) without the axis and then use this image to measure the contour area ...


Ahmad
From: Steven Lord on 24 May 2010 09:19

"Ahmad Alkandri" <a_alkandri(a)yahoo.com> wrote in message
news:htdmml$6e2$1(a)fred.mathworks.com...
> dear all
> i have a data that i'm displaying it with the use of contour plot ... it
> show a single contour line like a circle ... this circle show a slice of
> half a peak which i need to measure it area ... is there is any way i
> can save the plot data as an image ( the contour look only ) without the
> axis and then use this image to measure the contour area ...

CONTOUR can return the contour matrix as the first output; if your contour
is convex, you could then use POLYAREA to compute the area directly using
the coordinates in the contour matrix.

--
Steve Lord
slord(a)mathworks.com
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From: Walter Roberson on 24 May 2010 19:29
Ahmad Alkandri wrote:

> i have a data that i'm displaying it with the use of contour plot ...
> is there is any way
> i can save the plot data as an image ( the contour look only ) without
> the axis and then use this image to measure the contour area ...

set the axis Visible property to 'off' and then you can use saveas() on
the axis to write the plot to a file. Or you might prefer getframe()
instead of saveas()
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