void SVGOptionsScreen::GetScale( int write_set )
{
bool foundgeom = false;
Vehicle *veh = VehicleMgr.GetVehicle();
vector< Geom* > geom_vec = veh->FindGeomVec( veh->GetGeomVec( false ) );
BndBox svgbox;
for ( int i = 0 ; i < ( int )geom_vec.size() ; i++ )
{
if ( geom_vec[i]->GetSetFlag( write_set ) )
{
svgbox.Update( geom_vec[i]->GetBndBox() );
foundgeom = true;
}
}
if ( !foundgeom )
{
veh->m_Scale.Set( 0 ); // Set to 0 if no geoms are in the set
return;
}
double length = svgbox.DiagDist();
double convert_scale;
if ( length >= 1.0 )
{
convert_scale = floor2scale( length, pow( 10.0, mag( length ) ) );
}
else
{
convert_scale = floor2scale( length, pow( 10.0, mag( length ) - 1 ) );
}
veh->m_Scale.Set( convert_scale );
}
double magrounddn( double x )
{
return MIN( 0.0, floor2scale( x, pow( 10.0, mag( x ) ) ) );
}