Contour map from X,Y,Z Columns
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Hi , I want to create a contour map with circular shape(radius 150) from three columns of data .Please help me to solve this issue.
X Y Z
---------------------------
0 0 8687
45 45 7951
45 -45 9161
-45 -45 8357
-45 45 7969
0 -70 8748
70 0 8522
0 70 8246
-70 0 8588
Thanks in advance!!!
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Fangjun Jiang
2011년 8월 16일
You need to re-organize your data. Maybe like this:
data=[...
0 0 8687
70 0 8522
45 45 7951
0 70 8246
-45 45 7969
-70 0 8588
-45 -45 8357
0 -70 8748
45 -45 9161
70 0 8522];
x=data(:,1);
y=data(:,2);
z=data(:,3);
stem3(x,y,z);hold on;
plot3(x,y,z)
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Fangjun Jiang
2011년 8월 17일
That is right. Your data is not fit for the contour() function. You can take a look at some examples of contour() usage to figure out what is the required data. You have so little data. I could only guess what you are expecting. The figure generated above is the only meaningful visualization with the amount data you have.
Walter Roberson
2011년 8월 17일
premraj, you would need to use griddata() or something similar in order to produce an array that could be used for contour()
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