package?graphicsTest;

import?java.awt.Color;
import?java.awt.Dimension;
import?java.awt.Graphics;
import?java.awt.Graphics2D;
import?java.awt.event.MouseEvent;
import?java.awt.event.MouseListener;
import?java.awt.event.MouseMotionListener;
import?java.awt.geom.Ellipse2D;
import?java.awt.geom.Point2D;
?
import?javax.swing.Jframe;
import?javax.swing.JPanel;
?
public?class?Bezier?extends?JPanel?implements?MouseListenerMouseMotionListener{
	private?static?final?long?serialVersionUID?=?1L;
	private?Point2D[]?controlPoint;
	private?Ellipse2D.Double[]?ellipse;
	private?static?final?double?SIDELENGTH?=?8;
	private?int?numPoints;
	private?double?t=0.002;
	public?Bezier（）{
		numPoints?=?0;
		controlPoint?=?new?Point2D[4];
		ellipse?=?new?Ellipse2D.Double[4];
		this.addMouseListener（this）;
		this.addMouseMotionListener（this）;
	}
	@Override
	protected?void?paintComponent（Graphics?g）?{
		//?TODO?Auto-generated?method?stub
		super.paintComponent（g）;
		Graphics2D?g2?=?（Graphics2D）g;
		g2.setColor（Color.MAGENTA）;
		for（int?i=0;?i			if（i>0?&&?i<（numPoints-1））?{
				g2.fill（ellipse[i]）;
			}else?{
				g2.draw（ellipse[i]）;
			}
			if（numPoints>1?&&?i<（numPoints?-?1））
				g2.drawLine（（int）controlPoint[i].getX（）?（int）controlPoint[i].getY（）?（int）controlPoint[i+1].getX（）?（int）controlPoint[i+1].getY（））;
		}
		if（numPoints?==?4）?{
			double?xy;
			g2.setColor（Color.RED）;
			for（double?k=t;?k<=1+t;?k+=t）?{
				x?=?（1-k）*（1-k）*（1-k）*controlPoint[0].getX（）?+?3*k*（1-k）*（1-k）*controlPoint[1].getX（）
					+?3*k*k*（1-k）*controlPoint[2].getX（）?+?k*k*k*controlPoint[3].getX（）;
				y?=?（1-k）*（1-k）*（1-k）*controlPoint[0].getY（）?+?3*k*（1-k）*（1-k）*controlPoint[1].getY（）
						+?3*k*k*（1-k）*controlPoint[2].getY（）?+?k*k*k*controlPoint[3].getY（）;
//				System.out.println（x?+?“??“?+?y?）;
				g2.drawLine（（int）x?（int）y?（int）x?（int）y）;
			}
		}
	}
	@Override
	public?Dimension?getPreferredSize（）?{
		//?TODO?Auto-generated?method?stub
		return?new?Dimension（600600）;
	}
?
	public?void?startMain（）?{
		Jframe?f?=?new?Jframe（）;
		Bezier?t2?=?new?Bezier（）;
		f.add（t2）;
		f.pack（）;
		f.setVisible（true）;
		f.setDefaultCloseOperation（Jframe.DISPOSE_ON_CLOSE）;
	}
	@Override
	public?void?mouseClicked（MouseEvent?e）?{
		//?TODO?Auto-generated?method?stub
		if（numPoints?<4）?{
			double?x?=?e.getX（）;
			double?y?=?e.getY（）;
			controlPoint[numPoints]?=?new?Point2D.Double（x?y）;
			Ellipse2D.Double?current?=?new?Ellipse2D.Double（x-SIDELENGTH/2?y-SIDELENGTH/2?SIDELENGTH?SIDELENGTH）;
			ellipse[numPoints]?=?current;
			
			numPoints++;
			repaint（）;
		}
	}
	@Override
	public?void?mousePressed（MouseEvent?e）?{
		//?TODO?Auto-generated?method?stub		
	}
	private?int?find（Point2D?p）{
		int?flag?=?5;
		for（int?i=0;?i			if（?ellipse[i].contains（p））?{
				flag?=?i;
				return?flag;
			}
		}
		return?flag;
	}
	@Override
	public?void?mouseReleased（MouseEvent?e）?{
		//?TODO?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????226??2018-11-27?23:07??GraphicsTest\.classpath

?????文件????????388??2018-11-27?23:07??GraphicsTest\.project

?????文件??????46905??2018-11-30?01:14??GraphicsTest\background.jpg

?????文件???????4134??2018-12-24?18:59??GraphicsTest\graphicsTest\Bezier.class

?????文件???????3749??2018-12-24?18:33??GraphicsTest\graphicsTest\Bezier.java

?????文件???????6427??2018-12-24?19:16??GraphicsTest\graphicsTest\BLine.class

?????文件???????6538??2018-12-24?19:16??GraphicsTest\graphicsTest\BLine.java

?????文件???????2135??2018-12-24?18:59??GraphicsTest\graphicsTest\DDAline$1.class

?????文件???????2575??2018-12-24?18:59??GraphicsTest\graphicsTest\DDAline.class

?????文件???????2918??2018-12-03?16:37??GraphicsTest\graphicsTest\DDAline.java

?????文件???????1221??2018-12-24?19:16??GraphicsTest\graphicsTest\DeBoorCox.class

?????文件????????370??2018-12-24?19:16??GraphicsTest\graphicsTest\Dot.class

?????文件???????2577??2018-12-24?18:59??GraphicsTest\graphicsTest\DrawCircle$1.class

?????文件???????3989??2018-12-24?18:59??GraphicsTest\graphicsTest\DrawCircle.class

?????文件???????5325??2018-12-03?16:37??GraphicsTest\graphicsTest\DrawCircle.java

?????文件???????2433??2018-12-24?18:59??GraphicsTest\graphicsTest\LineCutting$1.class

?????文件???????3154??2018-12-24?18:59??GraphicsTest\graphicsTest\LineCutting.class

?????文件???????3993??2018-11-29?23:47??GraphicsTest\graphicsTest\LineCutting.java

?????文件????????961??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$1.class

?????文件????????985??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$2.class

?????文件????????905??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$3.class

?????文件????????970??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$4.class

?????文件????????978??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$5.class

?????文件???????1121??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$6.class

?????文件???????1124??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$7.class

?????文件????????970??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$8.class

?????文件????????926??2018-12-24?19:12??GraphicsTest\graphicsTest\Main$9.class

?????文件???????4365??2018-12-24?19:12??GraphicsTest\graphicsTest\Main.class

?????文件???????3689??2018-12-24?19:12??GraphicsTest\graphicsTest\Main.java

?????文件????????633??2018-12-24?18:59??GraphicsTest\graphicsTest\Morph$1.class

............此處省略24個文件信息