 
center of the object). This is because, by default, Dimensions 
uses the center of the data in the current layer as a scaling 
(or reference) point for its sizlng operations. 

What if we wanted the object to scale toward its top? 
possible If we change the reference point... 

8.activate Dimenslons (F3) 
  the Dimenslons requester will appear 

9.select Reference Point Y -TOP 
  we want to use the top of the objed to deterrnine our 
  Reference point 

10.enter I in the WIDTH..X, 2 In the HEIGHT..Y, I In the 
   DEPTH.,Z flelds and click OK or hit Retum 

Did you notice where the object scaled from this time? 
take another look at the object... 

11. click Undo and Redo on Modelers screen severai 
    times whlle looking at the object 

Now, because we selected Top in the Reference Point Y 
options, the object has sized from its top-

Try itl Test the other Reference Point X, Y, and Z options to 
get a feel for what they do. 

Real-World Scale 

In the next example we will test a 'real world' example of 
Dimension's dynamic scaling features... 

Exlercise #3 : Real World Resizing 

1. select layer 2 as the foreground layer and layer 3 as 
   the background 

In the foreground layer you see a desk, ruler and lamp. It 
looks normal enough, but, if you look at the grid size on 
Modeler's interface and the room in the back layer, you will 
notice that thls model is grossly out of proportion to real 
world objects, (i.e,, they are in proper proportion to each 
other, but to a real desk, ruler and lamp they are much too 
large). How do we flx them so they have the proper aspect? 

First, we look at the one dimension that we do know: the 
length of the ruler. Since the length of this ruler should be 1 
foot, we should be able to scale this ruler to that size and 

