where 
sinv,=+ and 
is 
(ii) VosVis— 
OsU,s2T 
  
  
ELEVATI ON 
  
  
  
  
  
  
  
  
YX 
cos V,-L 
(6) 
348 
  
  
  
  
  
  
  
SIDE VIEW 
where 
TU TE 
V,-sin X) 
(iii) 0<|X,|s£f.tanV, 
(7) 
0<|Y,|<f.sinV, 
h+L.f<Z,<h+f 
1.4 The Second Transformation Equations 
If we develop the cylindrical film , then 
we get a panoramic map of the globe. Every 
point P(X,,Y,) on the globe will have a 
corresponding panoramic point P*(X*,Y*) on 
the map as shown in figures (4) and (5). By 
transforming the axes from O to C we get: 
X, = X 
7, = 17, = E sin $ (8) 
Z, = (Z-h)-f cos à 
Hence we get the second transformation 
equations which express the panoramic 
coordinates (X*',Y') of ant point P' in terms 
of the coordinates (X,,Y,,2,) 
x'- X, 
Y' - f$ -fsin!(Y,/f) 
=fcos!((2,-h)/£) (9)