Create a polar surf plot with 3 measured data vectors

2016 6 30
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更新时间：2016 7 19
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I would like to create a polar plot with three measured data vectors: wind direction, wind speed and last the turbulence intensity. I would like to represent these three discrete data vectors in polar coordinate on a surface with an interpolation of the turbulence intensity values. Thank you very much.

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José-Luis
José-Luis 2016-6-30
A polarplot needs only two variables. Could you be clearer, show an example of what you want and of what you have done so far?
tony74
tony74 2016-6-30
I have three vectors and I would like to represent these vector on a polar plot: with the first point having direction1, speed1 and intensity1. In particular I would like to represent the intensity as a color scale with a corresponding colormap.

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Samuel Vergara
Samuel Vergara 2016-6-30

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It can be done. I don't know how you have your turbulency saved, so I will supose a turbulence function. Let's say that: x=wind direction y=wind speed z=turbulence(x,y)
X2=0:2*pi/n:2*pi; % direction in radians
Y2=0:(0.8/n):.8; % speed (radius)
[X,Y] = meshgrid(X2,Y2);
Z=ones(length(Y2),length(X2))
for i=1:length(X2),
for j=1:length(Y2)
Z(j,i)=turbulence(X2(i)*cos(Y2(j)), X2(i)*sin(Y2(j))]);
end
end
mesh(X.*cos(Y), X.*sin(Y), Z); % mesh or surf
I hope this helps you. Regards,

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tony74
tony74 2016-6-30
Hi Samuel, turbulence intensity is not a function of X and Y (wind direction and speed), it is a vector of measured values for turbulence intensity. The three variables are all vectors of measured quantities. I have three vectors and I would like to represent these vector on a polar plot: with the first point having direction1, speed1 and intensity1. In particular I would like to represent the intensity as a color scale with a corresponding colormap.
Samuel Vergara
Samuel Vergara 2016-6-30
编辑：Samuel Vergara 2016-6-30
Well, i think you don't need a mesh then. You need to plot a point for every coordinate given by X,Y,Z. See plot3 documentation. ->plot3(X,Y,Z).
I don't understand why you say polar. Are direction and speed angles? what are the dimensions of direction1, speed1 and intensity1 direction1, speed1 and intensity1 matrixs?
Regards.
tony74
tony74 2016-7-1
I'm showing you an example of a graph I would to obtain.
in this case the graph represent a direction for a wind speed and a concentration as colormap.
tony74
tony74 2016-7-19
something like pcolor in polar coordinates, by E. Ch3yn3t. However I need to construct the interpolation of z (concentration) values.

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2016-6-30

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