DSPolyLine.h
Classes
- DSPolyLine -- Implementation of a polyline. (full description)
Interface
- Public Members
- DSPolyLine()
- DSPolyLine(const DSPolyLine& other)
- DSPolyLine(const Matrix<Float>& points, const Bool& handles, const Bool& drawHandles)
- virtual ~DSPolyLine()
- virtual void draw(PixelCanvas* pc)
- virtual Bool inObject(const Float& xPos, const Float& yPos)
- virtual void move(const Float& dX, const Float& dY)
- virtual Vector<Float> getCenter()
- virtual void setCenter(const Float& xPos, const Float& yPos)
- virtual void scale(const Float& scaleFactor)
- virtual void rotate(const Float& angle)
- virtual void rotateAbout(const Float& angle, const Float& aboutX, const Float& aboutY)
- virtual void changePoint(const Vector<Float>& pos)
- virtual void changePoint(const Vector<Float>& pos, const Int n)
- virtual void addPoint(const Vector<Float>& newPos)
- virtual void setPoints(const Matrix<Float>& points)
- virtual uInt nPoints()
- virtual Bool setOptions(const Record& newSettings)
- virtual Record getOptions()
- Protected Members
- virtual Matrix<Float> getPoints()
- Private Members
- virtual void setDefaultOptions()
Prerequisite
Etymology
DSPolyLine is a method of managing the drawing of a polyline onto
a PixelCanvas.
Synopsis
DSPolyLine manages a collection of points, which when called it draws.
It also manages actions like the addition and removal of points from/to
the line.
There are generally two ways to make DisplayShape(s); To create them in
"one hit" by providing arguments to the constructor, or by using the
default constructor and then the "setOptions" method. A simple interface
for all classes inheriting from the
DisplayShape class is provided by
DisplayShapeInterface.
Motivation
The need to draw, move and manipulate a polyline.
Example
Member Description
DSPolyLine()
DSPolyLine(const DSPolyLine& other)
DSPolyLine(const Matrix<Float>& points, const Bool& handles, const Bool& drawHandles)
virtual ~DSPolyLine()
Constructors and Destructors
virtual void draw(PixelCanvas* pc)
virtual Bool inObject(const Float& xPos, const Float& yPos)
virtual void move(const Float& dX, const Float& dY)
virtual Vector<Float> getCenter()
virtual void setCenter(const Float& xPos, const Float& yPos)
virtual void scale(const Float& scaleFactor)
virtual void rotate(const Float& angle)
virtual void rotateAbout(const Float& angle, const Float& aboutX, const Float& aboutY)
General DisplayShape functions
virtual void changePoint(const Vector<Float>& pos)
virtual void changePoint(const Vector<Float>& pos, const Int n)
virtual void addPoint(const Vector<Float>& newPos)
virtual void setPoints(const Matrix<Float>& points)
Point manipulation functions. The changePoint with only one argument
moves the closest point to the location specified.
virtual uInt nPoints()
Return the number of points.
Get and set this shapes options.
Return all my points.
Used when default constructor called.