rtical Exageration). 
  
(509) 
been used on older pictoral maps to show relief by projecting the creastlines. 
This system is still used for tourist maps, especially in Switserland. 
  
  
  
  
  
  
  
  
  
N 
En 
Enlarged in one direction and reduced in the other N 
NON 
PSI 
1 TIN 
N 
NS 
CS DIN 
S TS ces 
N 
P N SS 
TY NI IN 
NL NS 
NU PS 
PICS PIS 
"LT D 
SS] MSN 
Sd POT 
EH 
IN 
SEN 
PR 
EI d 
; N 
One diagonal enlarged and the other reduced > 
  
  
Enlarged in one direction only 
  
Original copy 
  
Reduced in one direction only 
Fig. 6. Possible One Step Grid Transformation. 
The same negative used to produce the parallel oblique view can be used to 
produce the oblique orthographic view (see Fig. 3). When making the print for