挣值分析
没有具体计算
import javax.swing.*; import java.awt.*; public class EarnValueAnalysis extends JPanel { private double[] EV = {9, 31, 47.5}; private double[] PV = {10, 35, 50}; private double[] AC = {10, 36, 54}; public EarnValueAnalysis() { JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(400, 300); frame.getContentPane().add(this); frame.setVisible(true); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); int margin = 30; int width = getWidth(); int height = getHeight(); int[] xPoints = {50, 150, 250}; int[] yPointsEV = {200 - (int) (EV[0] * 2), 200 - (int) (EV[1] * 2), 200 - (int) (EV[2] * 2)}; int[] yPointsPV = {200 - (int) (PV[0] * 2), 200 - (int) (PV[1] * 2), 200 - (int) (PV[2] * 2)}; int[] yPointsAC = {200 - (int) (AC[0] * 2), 200 - (int) (AC[1] * 2), 200 - (int) (AC[2] * 2)}; g2d.setColor(Color.BLACK); // 绘制 x 轴 g2d.drawLine(margin, height - margin, width - margin, height - margin); // 绘制 y 轴 g2d.drawLine(margin, margin, margin, height - margin); // 绘制 x 轴标签 g2d.drawString("时间(周)", width - margin - 10, height - margin + 20); // 绘制 y 轴标签 g2d.drawString("钱(元)", margin - 20, margin - 10); // 绘制 x 轴刻度 g2d.drawString("1", margin + 45, height - margin + 15); g2d.drawString("2", margin + 145, height - margin + 15); g2d.drawString("3", margin + 245, height - margin + 15); // 绘制 y 轴刻度 g2d.drawString("10", margin - 20, height - margin - 20); g2d.drawString("20", margin - 20, height - margin - 80); g2d.drawString("30", margin - 20, height - margin - 140); g2d.drawString("40", margin - 20, height - margin - 200); g2d.drawString("50", margin - 20, height - margin - 260); g2d.drawString("60", margin - 20, height - margin - 320); g2d.setColor(Color.RED); g2d.setStroke(new BasicStroke(2)); g2d.drawPolyline(xPoints, yPointsEV, 3); g2d.setColor(Color.GREEN); g2d.setStroke(new BasicStroke(2)); g2d.drawPolyline(xPoints, yPointsPV, 3); g2d.setColor(Color.BLUE); g2d.setStroke(new BasicStroke(2)); g2d.drawPolyline(xPoints, yPointsAC, 3); // 绘制左上角的线条含义说明 g2d.setColor(Color.BLACK); g2d.drawString("EV - 红色", margin + 10, margin + 30); g2d.drawString("PV - 绿色", margin + 10, margin + 45); g2d.drawString("AC - 蓝色", margin + 10, margin + 60); g2d.setColor(Color.BLACK); g2d.setFont(new Font("宋体", Font.BOLD, 12)); g2d.drawString("", xPoints[0], yPointsEV[0]); g2d.drawString("", xPoints[0], yPointsPV[0]); g2d.drawString("", xPoints[0], yPointsAC[0]); g2d.drawString("净值分析", width / 2 - 40, height - margin + 40); } public static void main(String[] args) { SwingUtilities.invokeLater(EarnValueAnalysis::new); } }