illumination quesition

When I proceed illumination analysis from menu “analysis => Illumination”. I can get results if I use “Aim box for raytrace”. <br>
On the contrary, can’t get results if I use “Aim into whole sphere”. <br><br>
Error message are as follows:  <br>
Warning: Discarding current results.<br>
Warning: No rays intercepted the receiver.<br>
Warning: Minimum value =    0.00  Maximum value =    0.00<br>
               Contour plot will not be drawn<br>

illumination quesition

<br>
==========================================================<br>
Aim box for raytrace<br>
==========================================================<br>
NRA 100000<br>
CLR YES<br>
REV NO<br>
AIM  0.907 0.907 0 0 0<br>
PLO NO<br>
CON NO<br>
DIS YES<br>
RCV 2.563 1.922 0 0<br>
RCG 21 21<br>
SYM ROT<br>
SRC E1  0 0 0 0 0 0;RMX E1  1;SHA REC E1  628.2 471.1;RAP UNI E1 ;ANG E1  SUR;ANP LAM E1 ;<br>
GO<br>
==========================================================<br>
Aim into whole sphere<br>
==========================================================<br>
NRA 100000<br>
CLR YES<br>
REV NO<br>
AIM SPH <br>
PLO NO<br>
CON NO<br>
DIS YES<br>
RCV 2.563 1.922 0 0<br>
RCG 21 21<br>
SYM ROT<br>
SRC E1  0 0 0 0 0 0;RMX E1  1;SHA REC E1  628.2 471.1;RAP UNI E1 ;ANG E1  SUR;ANP LAM E1 ;<br>
GO<br>

[此贴子已经被作者于2005-12-4 23:23:57编辑过]