Geography Reference
In-Depth Information
x = X (cos α 12 ) 2 +( Y
y 1 )sin α 12 cos α 12 + x 1 (sin α 12 ) 2
(23.187)
y = J
x 0 ) j , tan α 12 = y 2
y 1
j=0 c j ( x
x 1 ,
(23.188)
x 2
End of Corollary.
2 to ( x, y ) C will be based on
the clothoidal parameters/coecients {c 1 ...c 7 } given in Table 23.8 . We have chosen a radius of
initial curvature of 1 0 =5 , 000m with a gradient of κ 0 =10 6 m 2 . A part of a clothoid up to
x = 250m, y = 260m has been plotted in Figs. 23.40 and 23.41 . For 50 points we have given the
clothoidal coordinates ( x, y )
Our case study of a minimal distance mapping of ( X,Y ) R
C
,( X,Y )
R
2 which are close to
C
and ( x
X,y
Y )datain
the millimeter range in Table 23.8 .
Here we have dealt with a railway track which has been surveyed from points chose to the
clothoid, the circle or the straight line. In particular, we have aimed at a relation of the measure-
ment points chose to the clothoid, the circle or the straight line given in an expat base
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