How can I draw a curved line segment using QuadCurve2D.Double?

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小鲜肉
小鲜肉 2021-01-24 23:41

Here is the line of code where I declare the curve:

QuadCurve2D.Double curve = new QuadCurve2D.Double(50,100,100,170,150,100);

Now what code ca

2条回答
  •  终归单人心
    2021-01-25 00:18

    I've made a minimum test case of what I think your describing here. This program works but I can't really help you unless I can see the code you are working with.

    import java.awt.geom.*;
    import java.awt.*;
    import javax.swing.*;
    
    public class CurveDraw extends JFrame {
            public static void main(String[] args) {
                    CurveDraw frame = new CurveDraw();
                    frame.setVisible(true);
            }
            public CurveDraw() {
                    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    setSize(400,400);
            }
            public void paint(Graphics g) {
                    QuadCurve2D.Double curve = new QuadCurve2D.Double(50,100,100,170,150,100);
                    ((Graphics2D)g).draw(curve);
            }
    }
    

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