3D Ploting with a column having the same value

2016 8 8
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更新时间：2016 8 9
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hi, i'm currently having a little trouble or misunderstanding. I want to plot a Matrix using countourf.
Matrix =
L C P
1 1 953.2606
1 2 752.0167
1 3 1
1 4 1.2286e+03
1 5 1
1 6 2.1819e+03
1 7 720.2413
1 8 1.0804e+03
1 9 1.6523e+03
but as you can see the first column is the same value, i tried:
xi=linspace(min(L1),max(L1),30);
yi=linspace(min(C),max(C),30);
[XI YI]=meshgrid(xi,yi);
ZI = griddata(L1,C,P,XI,YI);
figure
contourf(XI,YI,ZI);
L1 beeing the L broken down into 9 to fit:
0,111111111111111
0,222222222222222
0,333333333333333
0,444444444444444
0,555555555555556
0,666666666666667
0,777777777777778
0,888888888888889
1,00000000000000
but still nothing shows. and the same could be true for something like that:
L C P
1 1 953.2606
2 1 1.6523e+03
3 1 1.0804e+03
4 1 953.2606
5 1 1.6523e+03
The thing is i would like a something other than a line when i plot in 3d, i would like a cartography, thus why i use contourf.
Thank you

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KSSV
KSSV 2016-8-9

0 个投票

data = [1 1 953.2606
1 2 752.0167
1 3 1
1 4 1.2286e+03
1 5 1
1 6 2.1819e+03
1 7 720.2413
1 8 1.0804e+03
1 9 1.6523e+03];
L = data(:,1) ;
C = data(:,2) ;
P = data(:,3) ;
X = reshape(L,[3 3]) ;
Y = reshape(C,[3 3]) ;
Z = reshape(P,[3 3]) ;
figure
contour(X,Y,Z) ;
title('It gives a line')
figure
contourf(Z)
title('If you dont consider X and Y')

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