tgAccumulator: fix accumulator reduction

Signed-off-by: fly <merspieler@alwaysdata.com>

src/Airports/GenAirports/helipad.cxx

@@ -34,6 +34,11 @@ Helipad::Helipad(char* definition)
     std::istringstream ss(definition);
     ss >> heli.designator >> heli.lat >> heli.lon >> heli.heading >> heli.length >> heli.width >> heli.surface >> heli.marking >> heli.shoulder >> heli.smoothness >> heli.edge_lights;
 
+    if (heli.length <= 0 || heli.width <= 0 || heli.lat < -90 || heli.lat > 90 || heli.lon < -180 || heli.lon > 180 || heli.surface < 1 || heli.surface > 57 || heli.shoulder < 0 || heli.shoulder > 2 || heli.smoothness < 0 || heli.smoothness > 1 || !(heli.edge_lights == 0 || heli.edge_lights == 1)) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid helipad line: " << definition);
+    }
+
     TG_LOG(SG_GENERAL, SG_DEBUG, "Read helipad: (" << heli.lon << "," << heli.lat << ") heading: " << heli.heading << " length: " << heli.length << " width: " << heli.width);
 }
 

src/Airports/GenAirports/helipad.hxx

@@ -54,12 +54,14 @@ public:
                        tgcontour_list& slivers,
                        tgAccumulator& accum);
 
+    bool valid {true};
+
 private:
     struct TGRunway {
         // data for helipad
         std::string designator;
-        double lat;
-        double lon;
+        double lat {-9999};
+        double lon {-9999};
         double heading;
         double length;
         double width;

src/Airports/GenAirports/linked_objects.cxx

@@ -9,6 +9,11 @@ Windsock::Windsock(char* definition)
     std::istringstream ss(definition);
     ss >> lat >> lon >> lit;
 
+    if (lat < -90 || lat > 90 || lon < -180 || lon > 180) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid windsock line: " << definition);
+    }
+
     TG_LOG(SG_GENERAL, SG_DEBUG, "Read Windsock: (" << lon << "," << lat << ") lit: " << lit);
 }
 
@@ -17,6 +22,11 @@ Beacon::Beacon(char* definition)
     std::istringstream ss(definition);
     ss >> lat >> lon >> code;
 
+    if (lat < -90 || lat > 90 || lon < -180 || lon > 180) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid beacon line: " << definition);
+    }
+
     TG_LOG(SG_GENERAL, SG_DEBUG, "Read Beacon: (" << lon << "," << lat << ") code: " << code);
 }
 
@@ -28,6 +38,11 @@ Sign::Sign(char* definition)
     std::istringstream ss(definition);
     ss >> lat >> lon >> def_heading >> reserved >> size >> sgdef;
 
+    if (lat < -90 || lat > 90 || lon < -180 || lon > 180 || size < 1 || size > 5) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid sign line: " << definition);
+    }
+
     // 850 format sign heading is the heading which points away from the visible numbers
     // Flightgear wants the heading to be the heading in which the sign is read
     heading = -def_heading + 360.0;

src/Airports/GenAirports/linked_objects.hxx

@@ -10,9 +10,10 @@ class Windsock
 public:
     explicit Windsock(char* def);
 
-    double lat;
-    double lon;
+    double lat {-9999};
+    double lon {-9999};
     int lit;
+    bool valid {true};
 
     SGGeod GetLoc() const
     {
@@ -33,9 +34,10 @@ class Beacon
 public:
     explicit Beacon(char* def);
 
-    double lat;
-    double lon;
+    double lat {-9999};
+    double lon {-9999};
     int code;
+    bool valid {true};
 
     SGGeod GetLoc() const
     {
@@ -55,12 +57,13 @@ class Sign
 public:
     explicit Sign(char* def);
 
-    double lat;
-    double lon;
+    double lat {-9999};
+    double lon {-9999};
     double heading;
     int reserved;
     int size;
     std::string sgn_def;
+    bool valid {true};
 
     SGGeod GetLoc() const
     {

src/Airports/GenAirports/object.cxx

@@ -10,6 +10,11 @@ LightingObj::LightingObj(char* definition)
     std::istringstream ss(definition);
     ss >> lat >> lon >> type >> heading >> glideslope >> assoc_rw;
 
+    if (lat < -90 || lat > 90 || lon < -180 || lon > 180 || type < 1 || type > 6 || heading < 0 || heading > 360) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid lighting object line: " << definition);
+    }
+
     TG_LOG(SG_GENERAL, SG_DEBUG, "Read lighting object: (" << lon << "," << lat << ") heading: " << heading << " type: " << type);
 }
 

src/Airports/GenAirports/object.hxx

@@ -11,12 +11,13 @@ class LightingObj
 public:
     explicit LightingObj(char* def);
 
-    double lat;
-    double lon;
+    double lat {-9999};
+    double lon {-9999};
     int type;
     double heading;
     double glideslope;
     char assoc_rw;
+    bool valid {true};
 
 
     void BuildBtg(tglightcontour_list& lights);

src/Airports/GenAirports/parser.cxx

@@ -492,7 +492,7 @@ int Parser::ParseLine(char* line)
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing runway: " << line);
             cur_runway = std::make_shared<Runway>(line);
-            if (cur_airport) {
+            if (cur_airport && cur_runway->valid) {
                 cur_airport->AddRunway(cur_runway);
             }
             break;
@@ -501,7 +501,7 @@ int Parser::ParseLine(char* line)
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing water runway: " << line);
             cur_waterRunway = std::make_shared<WaterRunway>(line);
-            if (cur_airport) {
+            if (cur_airport && cur_waterRunway->valid) {
                 cur_airport->AddWaterRunway(cur_waterRunway);
             }
             break;
@@ -509,7 +509,7 @@ int Parser::ParseLine(char* line)
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing helipad: " << line);
             cur_helipad = std::make_shared<Helipad>(line);
-            if (cur_airport) {
+            if (cur_airport && cur_helipad->valid) {
                 cur_airport->AddHelipad(cur_helipad);
             }
             break;
@@ -518,7 +518,7 @@ int Parser::ParseLine(char* line)
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing taxiway: " << line);
             cur_taxiway = std::make_shared<Taxiway>(line);
-            if (cur_airport) {
+            if (cur_airport && cur_taxiway->valid) {
                 cur_airport->AddTaxiway(cur_taxiway);
             }
             break;
@@ -643,25 +643,33 @@ int Parser::ParseLine(char* line)
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing light beacon: " << line);
             cur_beacon = std::make_shared<Beacon>(line);
-            cur_airport->AddBeacon(cur_beacon);
+            if (cur_airport && cur_beacon->valid) {
+                cur_airport->AddBeacon(cur_beacon);
+            }
             break;
         case WINDSOCK_CODE:
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing windsock: " << line);
             cur_windsock = std::make_shared<Windsock>(line);
-            cur_airport->AddWindsock(cur_windsock);
+            if (cur_airport && cur_windsock->valid) {
+                cur_airport->AddWindsock(cur_windsock);
+            }
             break;
         case TAXIWAY_SIGN:
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing taxiway sign: " << line);
             cur_sign = std::make_shared<Sign>(line);
-            cur_airport->AddSign(cur_sign);
+            if (cur_airport && cur_sign->valid) {
+                cur_airport->AddSign(cur_sign);
+            }
             break;
         case LIGHTING_OBJECT:
             SetState(STATE_PARSE_SIMPLE);
             TG_LOG(SG_GENERAL, SG_DEBUG, "Parsing lighting object: " << line);
             cur_object = std::make_shared<LightingObj>(line);
-            cur_airport->AddObj(cur_object);
+            if (cur_airport && cur_object->valid) {
+                cur_airport->AddObj(cur_object);
+            }
             break;
 
         case COMM_FREQ1_CODE:

src/Airports/GenAirports/runway.cxx

@@ -65,6 +65,11 @@ Runway::Runway(char* definition)
         >> rwy.tz_lights[1]
         >> rwy.reil[1];
 
+    if (rwy.width == -9999 || rwy.lat[0] < -90 || rwy.lat[0] > 90 || rwy.lon[0] < -180 || rwy.lon[0] > 180 || rwy.lat[1] < -90 || rwy.lat[1] > 90 || rwy.lon[1] < -180 || rwy.lon[1] > 180 || rwy.smoothness > 1 || rwy.smoothness < 0 || !(rwy.centerline_lights == 0 || rwy.centerline_lights == 1) || rwy.edge_lights < 0 || rwy.edge_lights > 3 || !(rwy.dist_remain_signs == 0 || rwy.dist_remain_signs == 1) || rwy.marking[0] < 0 || rwy.marking[0] > 7 || rwy.marking[1] < 0 || rwy.marking[1] > 7 || rwy.approach_lights[0] < 0 || rwy.approach_lights[0] > 12 || rwy.approach_lights[1] < 0 || rwy.approach_lights[1] > 12 || !(rwy.tz_lights[0] == 0 || rwy.tz_lights[0] == 1) || !(rwy.tz_lights[1] == 0 || rwy.tz_lights[1] == 1) || rwy.reil[0] < 0 || rwy.reil[0] > 2 || rwy.reil[1] < 0 || rwy.reil[1] > 2 || rwy.surface < 1 || rwy.surface > 57) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid runway line: " << definition);
+    }
+
     // calculate runway heading and length (used a lot)
     SGGeodesy::inverse(GetStart(), GetEnd(), rwy.heading, az2, rwy.length);
 
@@ -88,6 +93,11 @@ WaterRunway::WaterRunway(char* definition)
         >> lat[1]
         >> lon[1];
 
+    if (width == -9999 || lat[0] < -90 || lat[0] > 90 || lon[0] < -180 || lon[0] > 180 || lat[1] < -90 || lat[1] > 90 || lon[1] < -180 || lon[1] > 180 || !(buoys == 0 || buoys == 1)) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid water runway line: " << definition);
+    }
+
     TG_LOG(SG_GENERAL, SG_DEBUG, "Read water runway: (" << lon[0] << "," << lat[0] <<
                                  ") to (" << lon[1] << "," << lat[1] <<
                                  ") width: " << width <<

src/Airports/GenAirports/runway.hxx

@@ -52,6 +52,8 @@ public:
                        tgcontour_list& slivers,
                        tgAccumulator& accum);
 
+    bool valid {true};
+
 private:
     struct TGRunway {
         // data for the whole runway
@@ -61,15 +63,15 @@ private:
         int edge_lights;
         int dist_remain_signs;
 
-        double width;
+        double width {-9999};
         double length;
         double heading;
         double smoothness;
 
         // data for each end
         char rwnum[2][16];
-        double lat[2];
-        double lon[2];
+        double lat[2] {-9999, -9999};
+        double lon[2] {-9999, -9999};
         double threshold[2];
         double overrun[2];
 
@@ -197,12 +199,14 @@ public:
         return SGGeod::fromDeg(lon[1], lat[1]);
     }
 
+    bool valid {true};
+
 private:
-    double width;
+    double width {-9999};
     int buoys;
     char rwnum[2][16];
-    double lat[2];
-    double lon[2];
+    double lat[2] {-9999, -9999};
+    double lon[2] {-9999, -9999};
 };
 
 typedef std::vector<std::shared_ptr<WaterRunway>> WaterRunwayList;

src/Airports/GenAirports/taxiway.cxx

@@ -16,7 +16,7 @@ extern int nudge;
 Taxiway::Taxiway(char* definition)
 {
     // variables for adjusting 810 rwy format to 850 rwy format
-    double lon = 0, lat = 0;
+    double lon = -9999, lat = -9999;
 
     // variables to store unused parameters
     char designation[16];
@@ -50,6 +50,11 @@ Taxiway::Taxiway(char* definition)
           smoothness >>
           signs;
 
+    if (width == -9999 || length == -9999 || lat < -90 || lat > 90 || lon < -180 || lon > 180) {
+	valid = false;
+	TG_LOG(SG_GENERAL, SG_ALERT, "Invalid taxiway line: " << definition);
+    }
+
     TG_LOG(SG_GENERAL, SG_DEBUG, "Read taxiway: (" << lon << "," << lat << ") heading: " << heading << " length: " << length << " width: " << width);
 
     // adjust length and width from feet to meters

src/Airports/GenAirports/taxiway.hxx

@@ -28,11 +28,13 @@ public:
                  tgAccumulator& accum,
                  std::string& shapefile_name);
 
+    bool valid {true};
+
 private:
     SGGeod origin;
     double heading;
-    double length;
-    double width;
+    double length {-9999};
+    double width {-9999};
     int surface;
     char lighting[6];
 

src/Lib/terragear/tg_accumulator.cxx

@@ -90,13 +90,13 @@ tgPolygon tgAccumulator::Diff( const tgPolygon& subject )
         all_nodes.add( nodes[i] );
     }
 
-    unsigned int  num_hits = 0;
     tgRectangle box1 = subject.GetBoundingBox();
 
     ClipperLib::Paths clipper_subject = tgPolygon::ToClipper( subject );
     ClipperLib::Paths clipper_result;
 
     while ( !done && max_hits > 0 ) {    
+        unsigned int  num_hits = 0;
         ClipperLib::Clipper c;
         c.Clear();
 
@@ -104,6 +104,10 @@ tgPolygon tgAccumulator::Diff( const tgPolygon& subject )
 
         // clip result against all polygons in the accum that intersect our bb
         for (unsigned int i=0; i < accum.size(); i++) {
+	    if (num_hits >= max_hits)
+	    {
+		break;
+	    }
             tgRectangle box2 = BoundingBox_FromClipper( accum[i] );
 
             if ( box2.intersects(box1) )
@@ -117,10 +121,7 @@ tgPolygon tgAccumulator::Diff( const tgPolygon& subject )
             if ( !c.Execute(ClipperLib::ClipType::Difference, clipper_result, ClipperLib::PolyFillType::NonZero, ClipperLib::PolyFillType::NonZero) ) {
                 SG_LOG(SG_GENERAL, SG_ALERT, "Diff With Accumulator returned FALSE - reducing accumulator" );
                 max_hits = num_hits-1;
-
-                FILE* fp = fopen( "./accumulator_fail.log", "a" );
-                fprintf( fp, "%s : reduce from %u to %u\n", debugstr.c_str(), num_hits, max_hits );
-                fclose(fp);                
+                SG_LOG(SG_GENERAL, SG_DEBUG, debugstr << ": reduce from " <<  num_hits << " to " << max_hits );
             } else {
                 result = tgPolygon::FromClipper( clipper_result );
                 result = tgPolygon::AddColinearNodes( result, all_nodes );

src/Lib/terragear/tg_surface.cxx

@@ -269,6 +269,7 @@ tgSurface::tgSurface( const std::string& path,
     // Build the extra res input grid (shifted SW by half (dlon,dlat)
     // with an added major row column on the NE sides.)
     int mult = 10;
+    SG_LOG(SG_GENERAL, SG_ALERT, "creating tgMatrix with nPts x=" << ((xdivs + 1) * mult + 1) << " y=" << ((ydivs + 1) * mult + 1));
     tgMatrix dPts( (xdivs + 1) * mult + 1, (ydivs + 1) * mult + 1 );
     for ( int j = 0; j < dPts.rows(); ++j ) {
         for ( int i = 0; i < dPts.cols(); ++i ) {