How to plot the contour polar map in matlab

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HEIN HTET ZAW
HEIN HTET ZAW 2019-1-31
编辑： Adam Danz 2020-10-11
Dear Mathlab users.
I am geoscience student, studying in University Technology PETRONAS, malaysia.
I need the help to plot the contour polar map,
I have X,Y,Z data
X= Azimuth ( 0 - 360) Theta
Y= Inclination ( 0 - 90) Radius
Z = values (0 - 1) contour line vales,
How can I process with this three data to get the contour polar plot.
I attached the csv input data and result of the plot using origin lab (example but the same as I want from Matlab),
Thank you and I appreciate for considering my problem.
Best Regards,
Hein
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Adam Danz
Adam Danz 2020-10-9
Thanks Rena. But it looks like it's been deleted again. Since the data is used in my answer, maybe it could be attached to the answer.

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Adam Danz
Adam Danz 2019-1-31
编辑：Adam Danz 2019-2-1
Hmmmm, I'm not sure if it's possible to directly draw contour lines in polar coordinates with Matlab (I'd love to know otherwise). But here are some alternatives.
Use a scatter plot on polar coordinates.
polarscatter() allows for 3D inputs
% 'vals' are your values, 'az' azimuth, 'incl' inclination.
valScaled = round(vals*100);
colmap = colormap(jet(101));
figure
ph = polarscatter(az * pi/180, incl, [], colmap(valScaled+1,:), 'filled'); %convert to radians
colormap(colmap)
h = colorbar();
ylabel(h, 'value')
190201 162111-Figure 2.jpg
Plot contour lines, but in Cartesian coordinates
% az are your azimuth data (column vector)
% incl are your inclination data (column vector)
% vals are your 3rd column of data.
azMat = reshape(az, length(unique(az)), []);
inclMat = reshape(incl, [], length(unique(incl)));
valsMat = reshape(vals, length(unique(az)), length(unique(incl)));
figure
contour(azMat, inclMat, valsMat)
xlabel('azimuth')
ylabel('inclination')
h = colorbar;
ylabel(h, 'values')
Use a 3rd party function from the file exchange
There are several. I tried out the file exchange function polarcont() : https://www.mathworks.com/matlabcentral/fileexchange/14826-polar-contour-plot
This transforms the data from polar to cartesian coordinates and plots it in cartesian space.
valsMat = reshape(vals, length(unique(az)), length(unique(incl)));
figure
polarcont(unique(incl), unique(az * pi/180), valsMat', 20); %note conversion to radian & transpose!
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Adam Danz
Adam Danz 2019-2-1
I updated my answer to provide 2 more alternatives. If you find the solution you're looking for elsewhere, I'd be happy to see it.
HEIN HTET ZAW
HEIN HTET ZAW 2019-2-6
Thank you so much for consideration sir Danz, your answer is quite useful for me.

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