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new fgcommand: "terrain-elevation"

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- input:  longitude-deg, latitude-deg
- output: elevation-m
This commit is contained in:
mfranz 2007-05-03 19:15:20 +00:00
parent 7e070759ad
commit 3eb6d4f708
1 changed files with 16 additions and 0 deletions
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16
src/Main/fg_commands.cxx
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@ -28,6 +28,7 @@
#include <GUI/dialog.hxx>
#include <Aircraft/replay.hxx>
#include <Scenery/tilemgr.hxx>
#include <Scenery/scenery.hxx>
#if defined(HAVE_PLIB_PSL)
# include <Scripting/scriptmgr.hxx>
#endif
@ -1230,6 +1231,20 @@ do_replay (const SGPropertyNode * arg)
}
/**
* Return terrain elevation for given longitude/latitude pair.
*/
static bool
do_terrain_elevation (const SGPropertyNode * arg)
{
double lon = arg->getDoubleValue("longitude-deg", 0.0);
double lat = arg->getDoubleValue("latitude-deg", 0.0);
double elev;
bool ret = globals->get_scenery()->get_elevation_m(lat, lon, 10000.0, elev, 0, false);
const_cast<SGPropertyNode *>(arg)->setDoubleValue("elevation-m", elev);
return ret;
}
static bool
do_decrease_visibility (const SGPropertyNode * arg)
@ -1436,6 +1451,7 @@ static struct {
{ "presets-commit", do_presets_commit },
{ "log-level", do_log_level },
{ "replay", do_replay },
{ "terrain-elevation", do_terrain_elevation },
{ "decrease-visibility", do_decrease_visibility },
{ "increase-visibility", do_increase_visibility },
{ "hud-init", do_hud_init },