Added a sanity check for bogus dem data points in original data.

diff --git a/Tools/Lib/DEM/dem.cxx b/Tools/Lib/DEM/dem.cxx
index 0ee5f74570d4a379d00c49a1e88fc8914a7d45eb..ddd03fd0c71f6cb62fd3db6a41e18c30f548f9ec 100644 (file)
--- a/Tools/Lib/DEM/dem.cxx
+++ b/Tools/Lib/DEM/dem.cxx
@@ -305,6 +305,7 @@ void
 FGDem::read_b_record( ) {
     string token;
     int i;
+    int last;
 
     // row / column id of this profile
     prof_row = next_int();
@@ -331,9 +332,17 @@ FGDem::read_b_record( ) {
     token = next_token();
 
     // One (usually) dimensional array (prof_num_cols,1) of elevations
+    last = 0;
     for ( i = 0; i < prof_num_rows; i++ ) {
        prof_data = next_int();
+
+       // a bit of sanity checking that is unfortunately necessary
+       if ( prof_data > 10000 ) { // meters
+           prof_data = last;
+       }
+           
        dem_data[cur_col][i] = (float)prof_data;
+       last = prof_data;
     }
 }