4D colur plot

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kalim ul-haq tariq
kalim ul-haq tariq 2016-12-11
回答： Walter Roberson 2016-12-12
if true
u1=1;
u2=1;
u3=1;
u4=1;
a=0.1;
b=0.5;
g=0.25;
t=1;
A=12.*b.^2.*u3./u2;
v=(b.^2.*u1+4.*b.^4.*u3+g.*u4)./b;
x= -20:1:20;
y= -20:1:20;
z = -20:1:20;
u = A./(cosh(a.*x+b.*y+g.*z-v.*t).^2);
surf(x,y,z,u);
colorbar
end
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Walter Roberson
Walter Roberson 2016-12-12
Do you mean that you want a volumetric plot with x, y, z as coordinates and u should be the color of each cuboid? If so then see vol3d in the file exchange
kalim ul-haq tariq
kalim ul-haq tariq 2016-12-12
But how can apply vol3d to the given function u(x,y,z)

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Walter Roberson
Walter Roberson 2016-12-12
vol3d('cdata', u)
and also pass [-20,20] for the Xdata, Ydata, and Zdata parameters
vol3d is from the file exchange

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