API Reference > OdGe Classes > OdGeCurve2d Class > OdGeCurve2d Methods > isOn Method > OdGeCurve2d::isOn Method (double, OdGeTol&)
OdGeCurve2d::isOn Method (double, OdGeTol&)
Syntax
C++
bool isOn(double param, const OdGeTol& tol = OdGeContext::gTol) const;
Parameters 
Description 
double param 
[in] Input parameter value.  
const OdGeTol& tol = OdGeContext::gTol 
[in] Geometric tolerance. 

Determines if an input parameter value is within a valid parametric range of the curve.

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

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