swing平滑曲线图

来源：互联网发布：英雄联盟知乎编辑：程序博客网时间：2024/05/20 15:12
package zhipu.trial.graph;import zhipu.main.Entrance;import javax.swing.*;import java.awt.*;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.awt.geom.GeneralPath;import java.util.ArrayList;import java.util.List;public class DrawChartDemo extends JPanel {    private Float[] values =  new Float[]{0.00476401629000442f ,            0.0063234711479510904f,            0.021695992320743099f,            0.0087923714104826394f,            0.016055573626994599f,            0.013452284007208701f,            0.0055611602146519801f,            0.0069146150381687596f,            0.0036230541986219198f,            0.0061674043426179301f,            0.00434440023492552f,            0.035138205238166999f,            0.0143897055961933f,            0.016811934089353098f,            0.0178861993959042f,            0.0087641654315109407f,            0.0102057457561573f,            0.0073624585142180602f,            0.272971583614874f,            0.0548574538534378f,            0.016955049412583498f,            0.0051184965677307202f,            0.0033135295393096199f,            0.0059344633867462002f,            0.0039347395484018001f,            0.00348367923743807f,            0.026377286849230099f,            0.036832070301518f,            0.0056683752431168398f,            0.0047084728862943504f,            0.0050807108798568996f,            0.0105448869266738f,            0.0056977138353234702f,            0.085602792538286607f,            0.0043054151148011997f,            0.0061197850778468496f,            0.0144032602561065f,            0.0098497881084309603f,            0.0065389022201078504f,            0.0079793910312075996f,            0.15023645197019f,            0.0068558337838472202f,            0.00388789967772707f,            0.0019588905560046599f,            0.00813157867268848f,            0.0181800097326743f,            0.0179981531868081f,            0.120687865774082f,            0.031901241417862901f,            0.0059096372433688803f,            0.039816888009691f,            0.0022180602796087298f,            0.0020421521163729701f,            0.0029398192573330999f,            0.0090383331308239393f,            0.069211309213069394f,            0.111332699808443f,            0.044655161421859497f,            0.0057869308391771297f,            0.0041646558052810603f,            0.0019861723474547599f,            0.0038429991850212901f,            0.0064167275578309001f,            0.0583319986899676f,            0.029744027162729499f,            0.0120586137993033f,            0.13488486713846501f,            0.046035790422276901f,            0.015785314062179999f,            0.0039932783490598603f,            0.0081173362329025698f,            0.101646122607811f,            0.27943278350252698f,            0.0150728510109874f,            0.013116721411450901f,            0.0092261367320127692f,            0.026218708859473899f,            0.00282953555265384f,            0.0044117373389137102f,            0.00260404985014934f,            0.0019293731880499201f,            0.00190464973226343f,            0.0038443276152136602f,            0.034056811633866202f,            1f,            0.094481973471835803f,            0.056033417554237797f,            0.018825637176542499f,            0.012730403947311f,            0.0065964488004084604f,            0.0126633133100138f,            0.0080601022249829398f,            0.0089431644768543598f,            0.025988444047573799f,            0.025109531649443f,            0.113067555237683f,            0.026435961558734799f,            0.070132172326724307f,            0.0044758225616537703f,            0.0059336269122534204f,            0.0036456993373522898f,            0.0118958563883495f,            0.0575133588137191f,            0.015350604576100499f,            0.0040318661392891499f,            0.0032193573469880901f,            0.0088850481743988092f,            0.023877330732745498f,            0.011155327017979f,            0.0083402368409935708f,            0.0573569045895874f,            0.69517440147232901f,            0.094371184910862896f,            0.071074104420728201f,            0.036956650045186501f,            0.0173215382293214f,            0.0082548025110114592f,            0.00575279184699701f,            0.0212456696437636f,            0.0090010269608339806f,            0.016338080136423599f,            0.102902209055831f,            0.0078924297946662402f,            0.0074607529655075604f,            0.0091213387724318404f,            0.0021516241375805099f,            0.043235898066084501f,            0.0025994439364933199f,            0.020705025675201501f,            0.0032286088255712199f,            0.0050739272892518896f,            0.0077606155122827997f,            0.24031502163576099f,            0.0361153446322387f,            0.010647914836661301f,            0.0034358292189724002f,            0.0034736207897978801f,            0.00342349287658111f,            0.0027815949551543298f,            0.21694338263132201f,            0.026700254130092999f,            0.0247184156591739f,            0.019277156255502199f,            0.061541706635920297f,            0.014204979551463199f,            0.098758600131271204f,            0.0109810452672438f,            0.011093174362075801f,            0.0035773478807027402f,            0.024341837124427598f,            0.095577421992731795f,            0.068092147724430493f,            0.025021579201069202f,            0.126686929940758f,            0.0274313458782336f,            0.0021874701261044402f,            0.0018053147965141801f,            0.0047045163060877001f,            0.060906978228009202f,            0.013506145600343401f,            0.057883280380810802f,            0.0135282913118019f,            0.133110570121451f,            0.0196209073352617f,            0.0081105463525148799f,            0.0166649644250235f,            0.119949170146833f,            0.35597758971746102f,            0.086355513768921199f,            0.020482876765933199f,            0.014151643764207401f,            0.0080725779012815208f,            0.0038027676021578499f,            0.015995267888023499f,            0.0024399349293019101f,            0.0065235374981799004f,            0.0051175119611385602f,            0.051700471945563202f,            0.0116097754442507f,            0.024850592780722301f,            0.0073334465479829398f,            0.0282795436228921f,            0.0071780000763853003f,            0.0047777663463222002f,            0.0073803493784771702f,            0.0043306186181200097f,            0.0064184788227479601f};    List<GeneralPath> paths =new ArrayList<GeneralPath>();    int maxindex=0;    float maxvalue=-1;    int heith=100;    int xinit = 0;   //鼠标按下时所处的X坐标    int yinit = 0;   //鼠标按下时所处的Y坐标    public DrawChartDemo() {        int startY=0;        int endY=0;        for (int j = 0; j <50; j++) {            Float[] points=values.clone();            startY=j*heith;            endY=(j+1)*heith;            GeneralPath path = new GeneralPath();//        path.lineTo(0,100);//        path.lineTo(0, heith-points[0]);            int index = 0;            int indexnext = 0;            for (int i = 0; i < points.length - 1; ++i) {                points[i] *= heith;                if (points[i] > maxvalue) {                    maxvalue = points[i];                    maxindex = i;                }            }            path.moveTo(0, endY - points[0]);            for (int i = 0; i < points.length - 1; ++i) {                index = i * 5;                indexnext = (i + 1) * 5;                float sp = points[i];                float ep = points[i + 1];//            Point c1 = new Point((i + i+1)/2, sp);//            Point c2 = new Point((i + i+1)/2, ep);                path.curveTo((index + indexnext) / 2, endY - sp, (index + indexnext) / 2, endY - ep, (index + 5), endY - ep);                if (maxindex == i) {//                path.lineTo((index+indexnext)/2,100);//                path.lineTo((index+indexnext)/2, heith-ep);                }            }            paths.add(path);        }        addMouseListener(new MouseListener() {            @Override            public void mouseClicked(MouseEvent e) {            }            @Override            public void mousePressed(MouseEvent e) {                xinit = e.getX();                yinit = e.getY();                System.out.println("x"+xinit+" "+yinit );                selectindex=yinit/heith;                updateUI();            }            @Override            public void mouseReleased(MouseEvent e) {            }            @Override            public void mouseEntered(MouseEvent e) {            }            @Override            public void mouseExited(MouseEvent e) {            }        });    }    @Override    protected void paintComponent(Graphics g) {        super.paintComponent(g);        Graphics2D g2d = (Graphics2D) g;        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);        g2d.setStroke(new BasicStroke(1));        g2d.translate(40, 0);        int gsize = paths.size();        for (int j = 0; j < gsize; j++) {            g2d.setColor(Color.blue);            if(selectindex==j){                g2d.setColor(Color.red);            }            g2d.draw(paths.get(j));            g2d.setColor(Color.red);            g2d.drawLine(maxindex*5,heith,maxindex*5,0);        }//        for (int i = 0; i < points.length; ++i) {//            g2d.setColor(Color.GRAY);//            g2d.fillOval(points[i].x-4, points[i].y-4, 8, 8);//            g2d.setColor(Color.BLACK);//            g2d.drawOval(points[i].x-4, points[i].y-4, 8, 8);//        }    }    private static void createAndShowGui() {        JFrame frame = new JFrame("Smooth Curve");        frame.setContentPane(new DrawChartDemo());        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        frame.setSize(820, 280);        frame.setLocationRelativeTo(null);        frame.setVisible(true);    }    int selectindex=-1;    public static void main(String[] args) {        SwingUtilities.invokeLater(new Runnable() {            public void run() {                Entrance.startTime=System.currentTimeMillis();   //获取开始时间                createAndShowGui();                Entrance.endTime=System.currentTimeMillis();   //获取开始时间                System.out.println("程序启动时间： " + (Entrance.endTime - Entrance.startTime) + "ms");            }        });    }}
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