java - 画曲线，有什么建议

Question

大家好，我需要以粗体绘制曲线，主要是那些以 N - S 开头的曲线，如果可能的话，还有 350-10 340-20 的曲线，依此类推。我尝试过 QuadCurve2D 和 drawArc，但这些都不起作用。有没有办法避免使用drawPolyline(xPoints, yPoints, WIDTH)，因为只绘制一条线就需要数百对。

这是代码的一部分，以避免您浪费时间自行测试:

        public class PaintMyQuad extends JPanel {

    @Override
    protected void paintComponent(Graphics g) {

        super.paintComponent(g);
        Graphics2D g2d = (Graphics2D) g.create();

        QuadCurve2D.Double curve = new QuadCurve2D.Double(200,0,200,100,200,200);
        QuadCurve2D.Double curve1 = new QuadCurve2D.Double(200,0,180,100,200,200);
        QuadCurve2D.Double curve2 = new QuadCurve2D.Double(200,0,160,100,200,200);
        //etc
        g2d.setColor(Color.RED);
        g2d.draw(curve);
        g2d.draw(curve1);
        g2d.draw(curve2);
        g2d.drawOval(100,100,200,200);
        g2d.drawArc(100,100, 100, 200, 90, 180);
        g2d.drawArc(100, 100, 100, 200, 180, 360);
        g2d.drawArc(100, 100, 0, 200, 90, 180);
        g2d.drawRect(100, 100, 200, 200);

Answer 1

如果您需要粗线，请尝试这样做:

....
Graphics2D g2d = (Graphics2D)g;

BasicStroke pen1 = new BasicStroke(5); // this is stroke with 5px width,
g2d.setStroke(pen1);

g2d.drawArc(100,100, 100, 200, 90, 180);
g2d.drawArc(100, 100, 100, 200, 180, 360);
...

为两种类型的线条绘制 2 个笔划，然后使用它。