light tools模拟时都是中心暗,周围有亮圆环。模拟光源为朗伯点光源。 kK62yz,
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是根据这篇论文编的matlab代码。 A(j9T,!
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clear; &>jSuvVT
H=20; seNJ6p=`
a=100; ET2^1X#j
itheta=0; %1\MW+
i=1; `<cnb!]
for theta=0:0.0001:pi/2 Un~
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if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005 !@.9>"FU
itheta(i+1)=theta; cPx]:sC
i=i+1; /V>q(Q
end 3zr95$Mt
end w# iezo. 0
R=30; @.D1_A
r=0; |(evDS5
for i=1:a ?QbxC,& i
r(i+1)=sqrt(R^2/a+r(i)^2); w6Owfq'v
end fV>12ici
I(:,1)=sin(itheta); OrG1Mfx&2%
I(:,2)=cos(itheta); 2:8p>^g=
N=[0,1]; Oh&k{DWE$
P=[0,5]; (4GDh%
O=[0,1]; %U<