minsky::Rotate Class Reference

rotate (x,y) by rot (in degrees) around the origin (x0, y0) can be used for rotating multiple points once constructed More...

#include <geometry.h>

Inheritance diagram for minsky::Rotate:

Collaboration diagram for minsky::Rotate:

Public Member Functions
	Rotate (float rot, float x0, float y0)
bool	initialisedFrom (float rot, float x, float y) const
Point	operator() (float x1, float y1) const
	rotate (x1,y1) More...
Point	operator() (const Point &p) const
float	x (float x, float y) const
float	y (float x, float y) const

Private Attributes
float	angle
float	ca
float	sa
float	x0
float	y0

Static Private Attributes
static constexpr float	rad =M_PI/180.0

Detailed Description

rotate (x,y) by rot (in degrees) around the origin (x0, y0) can be used for rotating multiple points once constructed

Definition at line 44 of file geometry.h.

Constructor & Destructor Documentation

Rotate()

minsky::Rotate::Rotate ( float  rot, float  x0, float  y0  )

inline

Definition at line 51 of file geometry.h.

Referenced by minsky::Item::MemoisedRotator::update().

                                         :
      angle(rot*rad), ca(std::cos(angle)), sa(std::sin(angle)), x0(x0), y0(y0) {}

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Member Function Documentation

initialisedFrom()

bool minsky::Rotate::initialisedFrom ( float  rot, float  x, float  y  ) const

inline

Definition at line 53 of file geometry.h.

References angle, rad, x(), x0, y(), and y0.

Referenced by minsky::Item::MemoisedRotator::update().

    {return x==x0 && y==y0 && angle==rot*rad;}

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operator()() [1/2]

Point minsky::Rotate::operator() ( float  x1, float  y1  ) const

inline

rotate (x1,y1)

Definition at line 56 of file geometry.h.

References x(), and y().

                                               {
      return Point(x(x1,y1),y(x1,y1));}

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operator()() [2/2]

Point minsky::Rotate::operator() ( const Point &  p ) const

inline

Definition at line 58 of file geometry.h.

References operator()().

Referenced by operator()().

{return operator()(p.x(), p.y());}

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x()

float minsky::Rotate::x ( float  x, float  y  ) const

inline

Definition at line 59 of file geometry.h.

References ca, sa, x0, y(), and y0.

Referenced by minsky::VariableBase::clickType(), minsky::VariableBase::draw(), minsky::Item::draw(), minsky::Group::draw1edge(), minsky::OperationBase::drawUserFunction(), initialisedFrom(), minsky::Item::onItem(), operator()(), minsky::Item::MemoisedRotator::update(), and y().

{return ca*(x-x0)-sa*(y-y0)+x0;}

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y()

float minsky::Rotate::y ( float  x, float  y  ) const

inline

Definition at line 60 of file geometry.h.

References ca, sa, x(), x0, and y0.

Referenced by minsky::VariableBase::clickType(), minsky::VariableBase::draw(), minsky::Item::draw(), minsky::Group::draw1edge(), minsky::OperationBase::drawUserFunction(), initialisedFrom(), minsky::Item::onItem(), operator()(), minsky::Item::MemoisedRotator::update(), and x().

{return sa*(x-x0)+ca*(y-y0)+y0;}

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Member Data Documentation

angle

float minsky::Rotate::angle

private

Definition at line 46 of file geometry.h.

Referenced by initialisedFrom().

ca

float minsky::Rotate::ca

private

Definition at line 47 of file geometry.h.

Referenced by x(), and y().

rad

constexpr float minsky::Rotate::rad =M_PI/180.0

staticprivate

Definition at line 49 of file geometry.h.

Referenced by initialisedFrom().

sa

float minsky::Rotate::sa

private

Definition at line 47 of file geometry.h.

Referenced by x(), and y().

x0

float minsky::Rotate::x0

private

Definition at line 48 of file geometry.h.

Referenced by initialisedFrom(), x(), and y().

y0

float minsky::Rotate::y0

private

Definition at line 48 of file geometry.h.

Referenced by initialisedFrom(), x(), and y().

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The documentation for this class was generated from the following file:

• geometry.h