how to get a contour plot for a matrix with imaginary values

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Balaji Ramdas
Balaji Ramdas 2022-1-3
回答： KSSV 2022-1-3
an error pops up saying the values must be real
p1source=(A1*exp(-j*k0*r1source))./r1source; %pressure from source 1
p2source=(A1*exp(-j*k0*r2source))./r2source; %preassure from source 2
p3source=(A1*exp(-j*k0*r3source))./r3source; %pressure from source 3
Pm1=p1source+p2source+p3source; %total pressure from all three sources
figure(1)
contourf(1:1:10,1:1:6,(pm1));

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回答（1 个）

KSSV
KSSV 2022-1-3
You can plot either ral, imaginary or absolute of the value.
contourf(1:1:10,1:1:6,real(pm1)); % to plot real part
contourf(1:1:10,1:1:6,imag(pm1)); % to plot imaginary part
contourf(1:1:10,1:1:6,abs(pm1)); % to plot absolute

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