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Use precise arc second to radian transformation constants

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This commit is contained in:
Martin Tůma 2018-05-11 20:06:16 +02:00
parent 792ec17a20
commit 3b0a4a30bb
1 changed files with 2 additions and 2 deletions
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4
src/map/datum.cpp
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@ -3,8 +3,8 @@
#include "datum.h" #include "datum.h"
#define as2rad(x) ((x) * 4.84814e-6) #define as2rad(x) ((x) * (M_PI/648000.0))
#define rad2as(x) ((x) * 206265.0) #define rad2as(x) ((x) * (648000.0/M_PI))
static Ellipsoid WGS84e = Ellipsoid(WGS84_RADIUS, WGS84_FLATTENING); static Ellipsoid WGS84e = Ellipsoid(WGS84_RADIUS, WGS84_FLATTENING);
static Datum WGS84 = Datum(&WGS84e, 0.0, 0.0, 0.0); static Datum WGS84 = Datum(&WGS84e, 0.0, 0.0, 0.0);