Module: JapanPlaneRectangular::Constants

Included in:
Functions
Defined in:
lib/japan_plane_rectangular/constants.rb

Constant Summary collapse

ORIGINS =

Positions of zone origins

[
  [33.00000, 129.5000],
  [33.00000, 131.00000],
  [36.00000, 132.166666666666669],
  [33.00000, 133.50000],
  [36.00000, 134.333333333333334],
  [36.00000, 136.00000],
  [36.00000, 137.166666666666666],
  [36.00000, 138.5],
  [36.00000, 139.833333333333334],
  [40.00000, 140.833333333333334],
  [44.00000, 140.25000],
  [44.00000, 142.25000],
  [44.00000, 144.25000],
  [26.00000, 142.00000],
  [26.00000, 127.50000],
  [26.00000, 124.00000],
  [26.00000, 131.00000],
  [20.00000, 136.00000],
  [26.00000, 154.000000]
]
M0 =
0.9999
GRS80_ER =

Equatorial radius of earth

6378137.0
GRS80_IF =

Inverse flattening

298.257222101
ECCENTRICITY =
Math.sqrt(2.0 * GRS80_IF - 1.0) / GRS80_IF