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area of a contour plot

I wish to get the area of a contour plot  or its projection on a relevant plane in Cwgraph3D.  i dont kow how to proceed on this??
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Message 1 of 7
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Hi ranjini,

Contour (or topographical) maps are usually two dimensional plots with contour lines indicating changing elevations.  I assume that you really want to find either the surface area or the volume of the 3D surface represented by a 2D contour map, correct?
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Message 2 of 7
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In CWgraph 3D , i could set the contour for a particular intensity or amplitude of the Z axis. contour plots are obviously two dimensional but in this case, the contour  area varies as u set the different levels of the Z axis. i dont have a 2d graph seperately. i think i could make it clear now.
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Message 3 of 7
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in CWgraph 3d , there is a provision to get the contour for a particular Z plane. this means, it is getting the cordinates of X and y for a particular Z. how to extract it to an array? if i have to write  a program it is possible. but i was just guessing there must be some way to get this in short cut.
thanks
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Message 4 of 7
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Hi Ranjini,

I'm not able to tell what provision your referring to that gets the X and Y coordinates at a given Z.  Can you explain how your doing this?  The CWGraph is an indicator, not a VI that returns calculations on the data it is given.  If you can try to explain exactly what you have done it would help me to find a better answer for you.  Thanks.

 

Stephen S.
National Instruments
1 Test is worth 1000 expert opinions
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Message 5 of 7
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I understand that CWgraph 3D is an indicator. contour plot is drawn by changing the setting of the properties of graph. 
hope i could make it clear
and thanks for reply.
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Message 6 of 7
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i could complete this through matlab script.
Thanking  you
Ranjini
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