TA的每日心情 | 开心 2023-6-2 15:15 |
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签到天数: 1 天 [LV.1]初来乍到
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知道方向函数,画方向图应该好画吧,偶极子为例:
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theta=(0:pi/100:pi)+pi/100;
w2 M" p$ e. {0 D5 K7 ophi=0:pi/100:2*pi;, q5 K! [8 V1 p* A) }1 K
for m=1:length(theta)# ]7 t& q: \' P/ G# P0 { L) G
E(m)=cos(pi*cos(theta(m))/2)/sin(theta(m));& J- u( A1 @ B7 d8 z& [
for n=1:length(phi)
& `, P+ D+ [4 [2 t% ]5 Zx(m,n)=E(m)*sin(theta(m))*cos(phi(n));6 M5 P% X O6 ^7 N
y(m,n)=E(m)*sin(theta(m))*sin(phi(n));
) {& U5 P" h/ f3 E% |9 Qz(m,n)=E(m)*cos(theta(m));
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surf(x,y,z);, V! Z! U& o# f" J& q
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