canvascv::Arrow Class Reference

The Arrow class. More...

#include <arrow.h>

Inheritance diagram for canvascv::Arrow:

Public Member Functions
virtual const char *	getType () const
	getType is always implemented by derived to return the same static pointer per shape. More...
Public Member Functions inherited from canvascv::Line
void	lockTail (bool isLocked)
	set if to lock the tail (Handle) of the line
void	lockHead (bool isLocked)
	set if to lock the head (Handle) of the line
void	showTail (bool isVisible)
	set if to show the tail (Handle) of the line
void	showHead (bool isVisible)
	set if to show the head (Handle) of the line
void	setTailPos (const cv::Point &pos)
	will move the tail (Handle) of the line to pos
void	setHeadPos (const cv::Point &pos)
	will move the head (Handle) of the line to pos
double	length () const
	returns the length of the line in pixels
bool	isPointOnLine (const cv::Point &p3, int threshold=3) const
	returns true if the point 'p3' is on the line, give or take 'threshold' pixels
Handle &	getPT1 ()
	get the Handle to the tail of the
Handle &	getPT2 ()
	get the Handle to the head of the
const cv::Point &	getTail () const
	get the Point position og the tail Handle
const cv::Point &	getHead () const
	get the Point position og the head Handle
virtual bool	isAtPos (const cv::Point &pos)
	returns true if shape is at pos, false otherwise
virtual bool	keyPressed (int &key)
	keyPressed will be called by Canvas for active shapes More...
virtual std::list< Handle * >	getConnectionTargets ()
	getConnectionTargets More...
Public Member Functions inherited from canvascv::CompoundShape
virtual void	setOutlineColor (const cv::Scalar &value)
	set the outline color
virtual void	setFillColor (const cv::Scalar &value)
	set the fill color (fill color is not very useful for shapes right now)
virtual void	setThickness (int value)
	set line thickness to use when drawing
virtual void	setLineType (int value)
	set the line type (LINE_4, LINE_8, LINE_AA)
virtual void	setLocked (bool value)
	set the shape lock state (can/can't be moved/edited)
virtual void	setVisible (bool value)
	set the shape visible state
virtual std::shared_ptr< Shape >	getShape (int id)
	getShape More...
Public Member Functions inherited from canvascv::Shape
	Shape ()
	constructor
	Shape (const Shape &other)
	copy constructor
virtual	~Shape ()
	virtual destructor
void	notifyOnEvent (CBPerShape cb)
	used to register for notifications on shape More...
cv::Scalar	getOutlineColor () const
	get the outline color
cv::Scalar	getFillColor () const
	get the fill color (fill color is not very useful for shapes right now)
bool	getLocked () const
	is the shape locked (can't be moved/edited)
bool	getVisible () const
	is the shape visible
int	getThickness () const
	get line thickness to use when drawing
int	getLineType () const
	get the line type (LINE_4, LINE_8, LINE_AA)
int	getId ()
	return a unique id for this shape

Protected Member Functions
virtual void	draw (cv::Mat &canvas)
	draw shape on the canvas More...
Protected Member Functions inherited from canvascv::Line
virtual bool	mousePressed (const cv::Point &pos, bool onCreate=false)
	mousePressed More...
virtual bool	mouseMoved (const cv::Point &pos)
	mouseMoved More...
virtual bool	mouseReleased (const cv::Point &pos)
	mouseReleased More...
Protected Member Functions inherited from canvascv::CompoundShape
virtual void	lostFocus ()
	lostFocus is called by Canvas if we're in it and just became non-active
Protected Member Functions inherited from canvascv::Shape
void	drawHelper (cv::Mat &canvas, Shape *other)
	helper method for non compund shapes to draw their members

Additional Inherited Members
Public Types inherited from canvascv::Shape
typedef std::function< void(Shape *, Event)>	CBPerShape
	signature of a callback which gets the Event

Detailed Description

A line in which the head has an arrow shape

Examples:

example_linecrossing.cpp.

Member Function Documentation

virtual void canvascv::Arrow::draw ( cv::Mat &  canvas )

protectedvirtual

Parameters

canvas

Reimplemented from canvascv::Line.

virtual const char* canvascv::Arrow::getType ( ) const

virtual

Returns

const char * pointer to string with shape type name

Reimplemented from canvascv::Line.

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

• CanvasCV-doxygen/src/canvascv/shapes/arrow.h