private double GetBottomElevation()
{
var maxY = Math.Min(Pline.StartPoint.Y, Pline.EndPoint.Y);
return(Section.GetEleFromY(maxY));
//
var segms = SlopeData.Combine(_slopes, _platforms, sort: false);
if (segms.Count == 0)
{
var bottomPt = _isFill
? Pline.GetLineSegment2dAt(Pline.NumberOfVertices - 2).EndPoint
: Pline.GetLineSegment2dAt(0).StartPoint;
return(Section.GetEleFromY(bottomPt.Y));
}
else
{
var bottomS = _isFill ? segms[segms.Count - 1] : segms[0];
if (bottomS is Slope)
{
return(Section.GetEleFromY((bottomS as Slope).BottomPoint.Y));
}
else
{
return(Section.GetEleFromY((bottomS as Platform).MiddlePoint.Y));
}
}
}
