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。
#X Q/y} ( (MGgr !h?HfpYv @*%3+9`yq 是根据这篇
论文编的matlab代码。
kn3w6] Hf4_zd uFr12ZFgK t:wBh'K~R8 哪位大神指点一下
vQ rxx clear;
>n7h%c H=20;
HT<p=o'$Z a=100;
n#!c!EfG itheta=0;
; Y/nS i=1;
}rQ Qe:{]B for theta=0:0.0001:pi/2
-YNpHd/;, if abs(integral(@(y)cos(y),itheta(i),theta)-1/a)<=0.00005
T Q41i/{ itheta(i+1)=theta;
~5
6&!4 i=i+1;
=.`\V] end
CL0lMZ end
?%3dgQB' R=30;
=3-=p&* r=0;
?LMQz= for i=1:a
HK)m^!= r(i+1)=sqrt(R^2/a+r(i)^2);
?:r?K|Ku end
4cQP+ n I(:,1)=sin(itheta);
b<FE
I(:,2)=cos(itheta);
O Z
./suR) N=[0,1];
Bx45yaT P=[0,5];
!Yof%%m$; O=[0,1];
nDnJ}`k n=1.5896;
8N&'n for i=1:a;
U7WYS8 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) );
T)P)B6q P(i+1,2)= P(i+1,1) * I(i+1,2) / I(i+1,1);
x-i1:W9; O(i+1,1)=( r(i) - P(i+1,1) ) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2);
,I"T9k-^ O(i+1,2)=(H-P(i+1,2)) / sqrt( (r(i)-P(i+1,1))^2 + (H-P(i+1,2))^2 );
`r$7Cc$C N(i+1,=( O(i+1, - n*I(i+1,) / sqrt( 1 + n^2 - 2*n*dot(O(i+1,,I(i+1,) );
8 a]'G)(ts end
(dlp5:lQz
P(:,3)=0;
|]-Zz7N) plot(P(:,1),P(:,2));
fd[N]I3 L[<#>/NPy