A value between 0..1 indicating the location within the closest line segment
Namespace:
EGIS.ShapeFileLibAssembly: EGIS.ShapeFileLib (in EGIS.ShapeFileLib.dll)
Syntax
Visual Basic |
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Public Property TVal As Double Get Set |
C# |
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public double TVal { get; set; } |
Visual C++ |
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public: property double TVal { double get (); void set (double value); } |
JavaScript |
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function get_tVal(); function set_tVal(value); |
Remarks
A TVal of 0 indicates the position on the line segment closest the given point is at the start of the line segment
A TVal of 1 indicates the position on the line segment closest the given point is at the end of the line segment
The TVal property is useful when used with polylines containing measures. For example if Segmentindex is N then the dervied measure at the point on the polyline closest to a given point would be measure[N] + tVal x (measure[N+1] - measure[N])