#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!N  #!Rtall312 Changing the Look-to Point, Look-from Point, and the Up 
Vector #!N #!N #!N You can adjust your view of the 
image by specifying values for these settings: #!N #!I0 #!N #!N 
#!I0 #!N  #!F-adobe-times-bold-r-normal--18*   look-to point vector #!EF #!I50 #!N The point 
around which the displayed image is centered. The point is specified 
as a vector in world coordinates. #!N #!I0 #!N  #!F-adobe-times-bold-r-normal--18*   look-from 
point vector #!EF #!I50 #!N The position of the camera. The 
point is specified as a vector in world coordinates. #!N #!I0 
#!N  #!F-adobe-times-bold-r-normal--18*   up vector #!EF #!I50 #!N The rotation (tilt) of 
the camera. Only the direction of this vector is important, not 
the magnitude. For instance, if you are looking at the object 
from a positive  #!F-adobe-times-medium-i-normal--18*   z #!EF direction, an up vector with 
a negative value for  #!F-adobe-times-medium-i-normal--18*   x #!EF tilts the camera counterclockwise. 
#!I0 #!N #!N #!N #!N The option box near the center 
of the  #!F-adobe-times-bold-r-normal--18*   View Control... #!EF dialog box (displaying  #!F-adobe-times-bold-r-normal--18*   To: 
#!EF by default and in  #!Lcamset58,dxall310 f Figure 58  #!EL  ) allows you to select 
the vector values to be displayed. #!N #!N To change the 
value of one of the vectors, do the following: #!N #!I0 
#!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N #!I30 #!N 1. Select the vector to 
change using the option box. The choices in the option menu 
are  #!F-adobe-times-bold-r-normal--18*   To #!EF ,  #!F-adobe-times-bold-r-normal--18*   From #!EF , and  #!F-adobe-times-bold-r-normal--18*   
Up #!EF . The current values for the vector you choose 
are displayed in the X, Y, and Z fields to the 
right of the options. #!N #!I30 #!N 2. Change each field 
to the new value. Do this by clicking on the field, 
typing in the new number, and pressing the enter key. #!N 
#!I30 #!N 3. Repeat these steps for each vector you want 
to change. #!N #!I0 #!N #!EF #!N #!N #!N Remember, to 
see the results of your changes, you must specify  #!F-adobe-times-bold-r-normal--18*   Execute 
#!EF or  #!F-adobe-times-bold-r-normal--18*   Execute on Change #!EF . #!N #!N #!N 
 #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N #!N  #!Ltall314,dxall314 h Changing the Size of the Image Window  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   #!N 
