Package com.reportmill.graphics

Class RMQuadratic

java.lang.Object

com.reportmill.base.RMObject

com.reportmill.graphics.RMLine

com.reportmill.graphics.RMQuadratic

All Implemented Interfaces:

RMArchiver.Archiving, java.lang.Cloneable

Direct Known Subclasses:

RMBezier

public class RMQuadratic
extends RMLine

This class models a simple quadratic curve, providing methods for extracting points, distance calculation, bisection, hit detection and such.

Field Summary

Fields

Modifier and Type	Field	Description
RMPoint	_cp1

Fields inherited from class com.reportmill.graphics.RMLine

_ep, _sp

Constructor Summary

Constructors

Constructor	Description
RMQuadratic()	Creates a new quadratic curve.
RMQuadratic(RMPoint startPoint, RMPoint controlPoint, RMPoint endPoint)	Creates a new quadratic curve for this gvein start point, control point and end point.

Method Summary

Modifier and Type	Method	Description
double	getDistanceQuadratic(RMPoint aPoint)	Returns the minimum distance from the given point to the curve.
float	getMaxX()	Returns the max x point of this bezier.
float	getMaxY()	Returns the max y point of this bezier.
float	getMinX()	Returns the min x point of this bezier.
float	getMinY()	Returns the min y point of this bezier.
RMPoint	getPoint(double t)	Returns the point on this curve at the parametric location t (defined from 0-1).
void	setCurve(float x1, float y1, float x2, float y2, float x3, float y3)	Sets the curve values.
void	setCurve(RMPoint p1, RMPoint p2, RMPoint p3)	Sets the curve values.
void	subdivide(RMQuadratic left, RMQuadratic right)	Subdivides this curve into the given left and right curves.

Methods inherited from class com.reportmill.graphics.RMLine

getDistanceLine, getDistanceToLineSquared, getHead, getHitInfo, getHitInfo, getHitInfo, getTail, setEnd, setStart, toString

Methods inherited from class com.reportmill.base.RMObject

clone, copy, didChange, didUndo, getAnimAttribute, getClassNameShort, initWithArchiver, undoClone, undoCopy, undoEquals

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_cp1

public RMPoint _cp1

Constructor Detail

RMQuadratic

public RMQuadratic()

Creates a new quadratic curve.

RMQuadratic

public RMQuadratic(RMPoint startPoint,
                   RMPoint controlPoint,
                   RMPoint endPoint)

Creates a new quadratic curve for this gvein start point, control point and end point.

Method Detail

setCurve

public void setCurve(float x1,
                     float y1,
                     float x2,
                     float y2,
                     float x3,
                     float y3)

Sets the curve values.

setCurve

public void setCurve(RMPoint p1,
                     RMPoint p2,
                     RMPoint p3)

Sets the curve values.

getPoint

public RMPoint getPoint(double t)

Returns the point on this curve at the parametric location t (defined from 0-1).

Overrides:

getPoint in class RMLine

getDistanceQuadratic

public double getDistanceQuadratic(RMPoint aPoint)

Returns the minimum distance from the given point to the curve.

subdivide

public void subdivide(RMQuadratic left,
                      RMQuadratic right)

Subdivides this curve into the given left and right curves.

getMinX

public float getMinX()

Returns the min x point of this bezier.

Overrides:

getMinX in class RMLine

getMinY

public float getMinY()

Returns the min y point of this bezier.

Overrides:

getMinY in class RMLine

getMaxX

public float getMaxX()

Returns the max x point of this bezier.

Overrides:

getMaxX in class RMLine

getMaxY

public float getMaxY()

Returns the max y point of this bezier.

Overrides:

getMaxY in class RMLine