fly/flightgear
1
0
Fork 0
Code Activity

- make weighting factors for search function with target heading permanent

Browse source 
- add "good" offset as suggested by Thomas FOERSTER
- minor tweaks
This commit is contained in:
mfranz 2007-10-12 20:53:46 +00:00
parent c979136e5b
commit 73bec9e1f8
1 changed files with 16 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
src/Airports/runways.cxx
View file

@ -29,8 +29,8 @@
#include <stdio.h> // sprintf()
#include <simgear/compiler.h>
#include <simgear/debug/logstream.hxx>
#include <Main/fg_props.hxx>
#include STL_STRING
#include <map>
@ -216,9 +216,8 @@ bool FGRunwayList::search( const string& aptid, const int tgt_hdg,
// Return the runway number of the runway closest to a given heading
#include <Main/fg_props.hxx> // FIXME remove
string FGRunwayList::search( const string& aptid, const int hdg ) {
//SG_LOG(SG_GENERAL, SG_DEBUG, "searching runway for " << aptid
//SG_LOG(SG_GENERAL, SG_ALERT, "searching runway for " << aptid
// << " with target heading " << hdg);
FGRunway r;
@ -228,10 +227,11 @@ string FGRunwayList::search( const string& aptid, const int hdg ) {
return "NN";
}
double LENWGT = fgGetDouble("/tmp/runway-search/length", 0.01);
double WIDWGT = fgGetDouble("/tmp/runway-search/width", 0.01);
double SURFWGT = fgGetDouble("/tmp/runway-search/surface", 10);
double DEVWGT = fgGetDouble("/tmp/runway-search/deviation", 1);
SGPropertyNode *param = fgGetNode("/sim/airport/runways/search", true);
double lenwgt = param->getDoubleValue("length-weight", 0.01);
double widwgt = param->getDoubleValue("width-weight", 0.01);
double surfwgt = param->getDoubleValue("surface-weight", 10);
double devwgt = param->getDoubleValue("deviation-weight", 1);
FGRunway best;
double max = 0.0;
@ -243,14 +243,14 @@ string FGRunwayList::search( const string& aptid, const int hdg ) {
if (r._type != "runway")
continue;
int surface = 0;
if (r._surface_code == 1 || r._surface_code == 2) // asphalt & concrete
int surface = 1;
if (r._surface_code == 12 || r._surface_code == 5) // dry lakebed & gravel
surface = 2;
else if (r._surface_code == 12 || r._surface_code == 5) // dry lakebed & gravel
surface = 1;
else if (r._surface_code == 1 || r._surface_code == 2) // asphalt & concrete
surface = 3;
double quality, bad, diff;
double good = LENWGT * r._length + WIDWGT * r._width + SURFWGT * surface;
double good = lenwgt * r._length + widwgt * r._width + surfwgt * surface + 1e-20;
// this side
diff = hdg - r._heading;
@ -258,10 +258,10 @@ string FGRunwayList::search( const string& aptid, const int hdg ) {
diff += 360;
while (diff >= 180)
diff -= 360;
bad = fabs(DEVWGT * diff) + 1e-20;
bad = fabs(devwgt * diff) + 1e-20;
quality = good / bad;
//SG_LOG(SG_GENERAL, SG_DEBUG, " runway " << r._rwy_no << " -> " << quality);
//SG_LOG(SG_GENERAL, SG_ALERT, " runway " << r._rwy_no << " -> " << quality);
if (quality > max) {
max = quality;
best = r;
@ -274,10 +274,10 @@ string FGRunwayList::search( const string& aptid, const int hdg ) {
diff += 360;
while (diff >= 180)
diff -= 360;
bad = fabs(DEVWGT * diff) + 1e-20;
bad = fabs(devwgt * diff) + 1e-20;
quality = good / bad;
//SG_LOG(SG_GENERAL, SG_DEBUG, " runway " << GetReverseRunwayNo(r._rwy_no)
//SG_LOG(SG_GENERAL, SG_ALERT, " runway " << GetReverseRunwayNo(r._rwy_no)
// << " -> " << quality);
if (quality > max) {
max = quality;