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。 ,ToEKId
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是根据这篇论文编的matlab代码。 ?R:Hj=.
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哪位大神指点一下 k ,(:[3J
clear; B[X6AQj}d
H=20; K!gFD
a=100; &L~rq)r/&
itheta=0; BniVZCct
i=1; |YFlJ2w
for theta=0:0.0001:pi/2 0^Cx`xdX:
if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005 #7ZBbq3=
itheta(i+1)=theta; Tou~U[V+
i=i+1; AR3=G>hO,
end kl"Cm`b)
end v72 dE
R=30; k>hZ
r=0; y-#tU>P
for i=1:a IpmREl$j
r(i+1)=sqrt(R^2/a+r(i)^2); o2jB~}VMl
end BZshTP[`
I(:,1)=sin(itheta); V%=t2+
I(:,2)=cos(itheta); 4]KceE
N=[0,1]; +]vl8, 4@
P=[0,5]; x=N;>
O=[0,1]; 9V\`{(R
n=1.5896; yqI|BF`
for i=1:a; ^dD?riFAk
P(i+1,1)=( N(i,1)*P(i,1) + N(i,2)*P(i,2) ) / ( N(i,1) + N(i,2)*I(i+1,2)/I(i+1,1) ); ]NsaFDi\
P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1); B ;$8<
O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2); +JG"eh&J"H
O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 ); ^umAfk5r?H
N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) ); /WVMT]T6^,
end B=|sLs`I
P(:,3)=0; L 3@wdC~0
plot(P(:,1),P(:,2)); 32D/%dHC
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