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Do some additional processing on the airport surface grid to try to clip

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out spikes and other wierdness and generally keep a reasonable bounds
on how much the surface can vary.
This commit is contained in:
curt 2003-08-20 16:49:12 +00:00
parent fafab4a3a0
commit 9e9a13bbdf
1 changed files with 32 additions and 0 deletions
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32
src/Airports/GenAirports/apt_surface.cxx
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@ -126,6 +126,38 @@ static void calc_elevations( const string &root, Matrix_Point3Df &Pts ) {
done = true; done = true;
} }
} }
// do some post processing for sanity's sake
// find the average height of the queried points
double total = 0.0;
int count = 0;
for ( i = 0; i < Pts.rows(); ++i ) {
for ( j = 0; j < Pts.cols(); ++j ) {
Point3Df p = Pts(i,j);
total += p.z();
count++;
}
}
double average = total / (double) count;
cout << "Average surface height = " << average << endl;
// now go through the elevations and clamp them all to within
// +/-10m (33') of the average.
const double dz = 10.0;
for ( i = 0; i < Pts.rows(); ++i ) {
for ( j = 0; j < Pts.cols(); ++j ) {
Point3Df p = Pts(i,j);
if ( p.z() < average - dz ) {
p.z() = average - dz;
Pts(i,j) = p;
}
if ( p.z() > average + dz ) {
p.z() = average + dz;
Pts(i,j) = p;
}
}
}
} }