question of an item in BladeGen "bgi" file
 

Hallo,
Dear friends,
Do you know what are the physical meanings of the two items ("4.166670000"and"2.500000000")in the "bgi"?



---------------------------------------------------
Begin AngleDefinition
AngleLocation=MeanLine
SpanwiseDistribution=General
New AngleCurve
Layer="Layer1"
DefinitionType=ThetaCurve
HorizDim=MeridionalPrime
VertDim=Degree
New Segment
CurveType=Spline
UpstreamControl=Free
Begin Data
( 0.0000000000,0.0000000000 )
( 4.166670000,500.0002143 )
End Data
DownstreamControl=Free
End Segment
End AngleCurve
New AngleCurve
Layer="Layer5"
DefinitionType=ThetaCurve
HorizDim=MeridionalPrime
VertDim=Degree
New Segment
CurveType=Spline
UpstreamControl=Free
Begin Data
( 0.0000000000,0.0000000000 )
( 2.500000000,500.0002143 )
End Data
DownstreamControl=Free
End Segment
End AngleCurve
End AngleDefinition

---------------------------------------------------



thanks in advance

Haiyu