444 20 Geodetic mapping
100
◦
140
◦
120
◦
0
◦
−20
◦
+20
◦
−15
◦
0
◦
35
◦
15
◦
50
◦
40
◦
60
◦
−20
◦
0
◦
40
◦
20
◦
80
◦
80
◦
180
◦
140
◦
−140
◦
−120
◦
−160
◦
160
◦
150
◦
Fig. 20.11. Riemann mapping, (Riemann) normal coordinates, distortion ellipses with axes {Λ 1 , Λ 2 = 1}.
Top: L 0 = 120
◦ , B 0 = 0
◦ . Middle: L 0 = 10
◦ , B 0 = 80
◦ . Bottom: L 0 = 10
◦ , B 0 = 50
◦ .