> How can I learn placing objects by their coordinates?>
Perhaps it would be easier for you to use meters and not pov units.
You could do something like this:
#declare m=3; //3 pov units =1 meter
#declare cm=m/100;
#declare km=m*1000;
Then you could use this to place you objects
for example:
box{
<-35*cm,2*m,0.2*km>
<50*cm,0,0>}
