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Changes for new astro code.

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This commit is contained in:
curt 1998-09-15 04:27:49 +00:00
parent 6f91b7db68
commit b5cf8b7323
2 changed files with 33 additions and 6 deletions
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11
Time/fg_time.cxx
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@ -42,9 +42,10 @@
# include <sys/time.h> // for get/setitimer, gettimeofday, struct timeval
#endif
#include <Astro/orbits.hxx>
#include <Astro/sun.hxx>
//#include <Astro/orbits.hxx>
//#include <Astro/sun.hxx>
#include <Astro/sky.hxx>
#include <Astro/solarsystem.hxx>
#include <Debug/fg_debug.h>
#include <Flight/flight.h>
#include <Include/fg_constants.h>
@ -66,7 +67,8 @@ fgTIME cur_time_params;
// Force an update of the sky and lighting parameters
static void local_update_sky_and_lighting_params( void ) {
fgSunInit();
// fgSunInit();
SolarSystem::theSolarSystem->rebuild();
cur_light_params.Update();
fgSkyColorsInit();
}
@ -425,6 +427,9 @@ void fgTimeUpdate(fgFLIGHT *f, fgTIME *t) {
// $Log$
// Revision 1.17 1998/09/15 04:27:49 curt
// Changes for new astro code.
//
// Revision 1.16 1998/08/29 13:11:32 curt
// Bernie Bright writes:
// I've created some new classes to enable pointers-to-functions and

28
Time/sunpos.cxx
View file

@ -43,7 +43,8 @@
#include <stdio.h>
#include <time.h>
#include <Astro/orbits.hxx>
//#include <Astro/orbits.hxx>
#include <Astro/solarsystem.hxx>
#include <Include/fg_constants.h>
#include <Main/views.hxx>
#include <Math/fg_geodesy.h>
@ -55,6 +56,7 @@
#include "fg_time.hxx"
#include "sunpos.hxx"
extern SolarSystem *solarSystem;
#undef E
@ -255,8 +257,23 @@ void fgSunPosition(time_t ssue, double *lon, double *lat) {
/* lambda = sun_ecliptic_longitude(ssue); */
/* ecliptic_to_equatorial(lambda, 0.0, &alpha, &delta); */
ecliptic_to_equatorial (solarPosition.lonSun, 0.0, &alpha, &delta);
//ecliptic_to_equatorial (solarPosition.lonSun, 0.0, &alpha, &delta);
/* **********************************************************************
* NOTE: in the next function, each time the sun's position is updated, the
* the sun's longitude is returned from solarSystem->sun. Note that the
* sun's position is updated at a much higher frequency than the rate at
* which the solar system's rebuilds occur. This is not a problem, however,
* because the fgSunPosition we're talking about here concerns the changing
* position of the sun due to the daily rotation of the earth.
* The ecliptic longitude, however, represents the position of the sun with
* respect to the stars, and completes just one cycle over the course of a
* year. Its therefore pretty safe to update the sun's longitude only once
* every ten minutes. (Comment added by Durk Talsma).
************************************************************************/
ecliptic_to_equatorial( SolarSystem::theSolarSystem->getSun()->getLon(),
0.0, &alpha, &delta );
tmp = alpha - (FG_2PI/24)*GST(ssue);
if (tmp < -FG_PI) {
do tmp += FG_2PI;
@ -286,7 +303,9 @@ static void fgSunPositionGST(double gst, double *lon, double *lat) {
/* lambda = sun_ecliptic_longitude(ssue); */
/* ecliptic_to_equatorial(lambda, 0.0, &alpha, &delta); */
ecliptic_to_equatorial (solarPosition.lonSun, 0.0, &alpha, &delta);
//ecliptic_to_equatorial (solarPosition.lonSun, 0.0, &alpha, &delta);
ecliptic_to_equatorial( SolarSystem::theSolarSystem->getSun()->getLon(),
0.0, &alpha, &delta );
// tmp = alpha - (FG_2PI/24)*GST(ssue);
tmp = alpha - (FG_2PI/24)*gst;
@ -404,6 +423,9 @@ void fgUpdateSunPos( void ) {
// $Log$
// Revision 1.12 1998/09/15 04:27:50 curt
// Changes for new astro code.
//
// Revision 1.11 1998/08/12 21:13:22 curt
// Optimizations by Norman Vine.
//