fix trx and rx heights and improve calculations

[flightgear.git] / src / Navaids / navdb.cxx

diff --git a/src/Navaids/navdb.cxx b/src/Navaids/navdb.cxx
index 4f7c10e7f8e89241e3d67d532ee6d7cfac6e0856..b1a813d6173f61a4d9ddc1aaa901c9bd5eec24b7 100644 (file)
--- a/src/Navaids/navdb.cxx
+++ b/src/Navaids/navdb.cxx
@@ -34,6 +34,7 @@
 #include <simgear/misc/sg_path.hxx>
 #include <simgear/structure/exception.hxx>
 #include <simgear/misc/sgstream.hxx>
+#include <simgear/props/props_io.hxx>
 
 #include "navrecord.hxx"
 #include "navlist.hxx"
@@ -41,9 +42,16 @@
 #include <Main/globals.hxx>
 #include <Navaids/markerbeacon.hxx>
 #include <Airports/simple.hxx>
+#include <Airports/runways.hxx>
+#include <Airports/xmlloader.hxx>
+#include <Main/fg_props.hxx>
 
 using std::string;
 
+typedef std::map<FGAirport*, SGPropertyNode_ptr> AirportPropertyMap;
+
+static AirportPropertyMap static_airportIlsData;
+
 static FGPositioned::Type
 mapRobinTypeToFGPType(int aTy)
 {
@@ -223,9 +231,62 @@ bool fgNavDBInit( FGNavList *navlist, FGNavList *loclist, FGNavList *gslist,
  // end ReadChanFile
 
 
+  // flush all the parsed ils.xml data, we don't need it anymore,
+  // since it's been meregd into the FGNavRecords
+    static_airportIlsData.clear();
+
     return true;
 }
 
+SGPropertyNode* ilsDataForRunwayAndNavaid(FGRunway* aRunway, const std::string& aNavIdent)
+{
+  if (!fgGetBool("/sim/paths/use-custom-scenery-data")) {
+    return NULL; 
+  }
+  
+  if (!aRunway) {
+    return NULL;
+  }
+  
+  FGAirport* apt = aRunway->airport();
+// find (or load) the airprot ILS data
+  AirportPropertyMap::iterator it = static_airportIlsData.find(apt);
+  if (it == static_airportIlsData.end()) {
+    SGPath path;
+    if (!XMLLoader::findAirportData(apt->ident(), "ils", path)) {
+    // no ils.xml file for this airpot, insert a NULL entry so we don't
+    // check again
+      static_airportIlsData.insert(it, std::make_pair(apt, SGPropertyNode_ptr()));
+      return NULL;
+    }
+    
+    SGPropertyNode_ptr rootNode = new SGPropertyNode;
+    readProperties(path.str(), rootNode);
+    it = static_airportIlsData.insert(it, std::make_pair(apt, rootNode));
+  } // of ils.xml file not loaded
+  
+  if (!it->second) {
+    return NULL;
+  }
+  
+// find the entry matching the runway
+  SGPropertyNode* runwayNode, *ilsNode;
+  for (int i=0; (runwayNode = it->second->getChild("runway", i)) != NULL; ++i) {
+    for (int j=0; (ilsNode = runwayNode->getChild("ils", j)) != NULL; ++j) {
+      // must match on both nav-ident and runway ident, to support the following:
+      // - runways with multiple distinct ILS installations (KEWD, for example)
+      // - runways where both ends share the same nav ident (LFAT, for example)
+      if ((ilsNode->getStringValue("nav-id") == aNavIdent) &&
+          (ilsNode->getStringValue("rwy") == aRunway->ident())) 
+      {
+        return ilsNode;
+      }
+    } // of ILS iteration
+  } // of runway iteration
+
+  return NULL;
+}
+
 FGRunway* getRunwayFromName(const std::string& aName)
 {
   vector<string> parts = simgear::strutils::split(aName);
@@ -236,12 +297,12 @@ FGRunway* getRunwayFromName(const std::string& aName)
   
   const FGAirport* apt = fgFindAirportID(parts[0]);
   if (!apt) {
-    SG_LOG(SG_GENERAL, SG_WARN, "navaid " << aName << " associated with bogus airport ID:" << parts[0]);
+    SG_LOG(SG_GENERAL, SG_DEBUG, "navaid " << aName << " associated with bogus airport ID:" << parts[0]);
     return NULL;
   }
   
   if (!apt->hasRunwayWithIdent(parts[1])) {
-    SG_LOG(SG_GENERAL, SG_WARN, "navaid " << aName << " associated with bogus runway ID:" << parts[1]);
+    SG_LOG(SG_GENERAL, SG_DEBUG, "navaid " << aName << " associated with bogus runway ID:" << parts[1]);
     return NULL;
   }