Curve::Polynomial class reference
[Core module]

This class is a member of the Curve namespace.

This class allow definition of rotationally symmetric high order polynomial curves. Unlimited number of terms can be used.

See also the full member list section for this class.

• 9 members inherited from Rotational

• Polynomial ()
• Polynomial (unsigned int first_term, unsigned int last_term, ...)
• virtual double derivative (double r) const
• virtual double sagitta (double r) const
• void set (unsigned int first_term, unsigned int last_term, ...)
• void set_even (unsigned int first_term, unsigned int last_term, ...)
• void set_first_term (unsigned int n)
• void set_last_term (unsigned int n)
• void set_odd (unsigned int first_term, unsigned int last_term, ...)
• void set_term_factor (unsigned int n, double c)

Polynomial()

Create a new zero polynomial

Polynomial(unsigned int first_term, unsigned int last_term, ...)

Create a new polynomial with given order and coefficients. Same syntax as set() function.

virtual double derivative(double r) const

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

Documentation inherited from base class:

Get curve derivative at specified distance from origin.

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

virtual double sagitta(double r) const

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

Documentation inherited from base class:

Get curve sagitta at specified distance from origin.

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

void set(unsigned int first_term, unsigned int last_term, ...)

Set polynomial order and coefficients.

• first_term: order of first (lowest) term.
• last_term: order of last (highest) term.
• ...: list of coefficient starting at lowest term

void set_even(unsigned int first_term, unsigned int last_term, ...)

Set even polynomial order and coefficients.

• first_term: order of first (lowest) term, must be even.
• last_term: order of last (highest) term, must be even.
• ...: list of even coefficient starting at lowest term

void set_first_term(unsigned int n)

Set order of first (lowest) term. Polynomial may be truncated or extended with 0 coefficients.

void set_last_term(unsigned int n)

Set order of last (highest) term. Polynomial may be truncated or extended with 0 coefficients.

void set_odd(unsigned int first_term, unsigned int last_term, ...)

Set odd polynomial order and coefficients.

• first_term: order of first (lowest) term, must be odd.
• last_term: order of last (highest) term, must be odd.
• ...: list of odd coefficient starting at lowest term

void set_term_factor(unsigned int n, double c)

Adjust coefficient of a single term. Adujst polynomial length as needed, setting additional coefficients to 0.