From 83144f66a33a905ece512d9049ca4d4d63bed31e Mon Sep 17 00:00:00 2001
From: Christian Schmitt <chris@ilovelinux.de>
Date: Mon, 12 Sep 2011 23:53:07 +0200
Subject: [PATCH] get runway center calculation right
---
src/Airports/GenAirports850/build.cxx | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/src/Airports/GenAirports850/build.cxx b/src/Airports/GenAirports850/build.cxx
index cdf135d0..43b869f3 100644
--- a/src/Airports/GenAirports850/build.cxx
+++ b/src/Airports/GenAirports850/build.cxx
@@ -408,24 +408,27 @@ void build_airport( string airport_id, float alt_m,
//calculate runway heading
double rwcourse(SGGeodesy::courseDeg(pos_1, pos_2));
+ //calculate runway length
double rwlength((SGGeodesy::distanceM(pos_1, pos_2)) * SG_METER_TO_FEET);
-
+ double rwcenter_lat = (lat_1 + lat_2) / 2;
+ double rwcenter_lon = (lon_1 + lon_2) / 2;
SG_LOG( SG_GENERAL, SG_INFO, "pos1 is " << lat_1 << lon_1 );
SG_LOG( SG_GENERAL, SG_INFO, "pos2 is " << lat_2 << lon_2 );
SG_LOG( SG_GENERAL, SG_INFO, "course is " << rwcourse );
SG_LOG( SG_GENERAL, SG_INFO, "distance is " << rwlength );
-
- rwy.lat = atof( token[9].c_str() );
+ SG_LOG( SG_GENERAL, SG_INFO, "lat center is " << rwcenter_lat );
+ SG_LOG( SG_GENERAL, SG_INFO, "lon center is " << rwcenter_lon );
+ rwy.lat = rwcenter_lat;
apt_lat += rwy.lat;
- rwy.lon = atof( token[10].c_str() );
+ rwy.lon = rwcenter_lon;
apt_lon += rwy.lon;
rwy.heading = rwcourse;
rwy.length = rwlength;
- rwy.width = (atoi( token[1].c_str() ) * SG_METER_TO_FEET);
+ rwy.width = atoi( token[1].c_str() ) * SG_METER_TO_FEET;
rwy.disp_thresh1 = atoi( token[11].c_str() );
rwy.disp_thresh2 = atoi( token[20].c_str() );