API Reference > OdGe Classes > OdGeCurve2d Class > OdGeCurve2d Methods > OdGeCurve2d::paramAtLength Method
OdGeCurve2d::paramAtLength Method
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Syntax
C++
double paramAtLength(double datumParam, double length, bool posParamDir = true, double tol = OdGeContext::gTol.equalPoint()) const;
Parameters
Parameters 
Description 
double datumParam 
[in] Input parameter value.  
double length 
[in] Input arc length.  
bool posParamDir = true 
[in] Input parameter direction.  
double tol = OdGeContext::gTol.equalPoint() 
[in] Geometric tolerance. 
Description

Returns the parameter value of the point whose arc length distance is the input length.

Remarks

By default this function throws the exception "not Implemented". Should be implemented in derived classes.

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