Curve::Rotational class reference
[Core module]

This class is a member of the Curve namespace.

This abstract class contains pure virtuals.

This class defines rotationally symmetric curve interface and provide default implementation as generic non symmetric curve.

See also the full member list section for this class.

• 5 members inherited from Base

• Rotational ()
• virtual double derivative (double r) const
• virtual void derivative (const Math::Vector2 &xy, Math::Vector2 &dxdy) const
• virtual void get_sample (unsigned int index, double &r, double &z) const
• virtual unsigned int get_sample_count () const
• virtual void normal (Math::Vector3 &normal, const Math::Vector3 &point) const
• virtual double sagitta (double r) const = 0;
• virtual double sagitta (const Math::Vector2 &xy) const

Rotational()

No documentation available

virtual double derivative(double r) const

Get curve derivative at specified distance from origin.

• r: distance from curve origin (0, 0)

virtual void derivative(const Math::Vector2 &xy, Math::Vector2 &dxdy) const

This virtual function overrides the derivative virtual function defined in the Base base abstract class.

Documentation inherited from base class:

Get curve x and y derivative (gradient) at specified point

virtual void get_sample(unsigned int index, double &r, double &z) const

Get a sample point on curve. (0,0) is not included.

virtual unsigned int get_sample_count() const

Get number of available sample points. Samples points may be used by curve fitting algorithms and are choosen to avoid using interpolated points. return 0 when not applicable.

virtual void normal(Math::Vector3 &normal, const Math::Vector3 &point) const

This virtual function overrides the normal virtual function defined in the Base base abstract class.

Documentation inherited from base class:

Get normal to curve surface at specified point

virtual double sagitta(double r) const = 0;

Get curve sagitta at specified distance from origin.

• r: distance from curve origin (0, 0)

virtual double sagitta(const Math::Vector2 &xy) const

This virtual function implements the sagitta pure function declared in the Base base abstract class.

Documentation inherited from base class:

Get curve sagitta at specified point