Java by API/java.awt.geom/QuadCurve2D

new QuadCurve2D.Double(double x1, double y1, double ctrlx, double ctrly, double x2, double y2)

   <source lang="java">

import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.CubicCurve2D; import java.awt.geom.Point2D; import java.awt.geom.QuadCurve2D; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JPanel {

 public MainClass() {
 }
 public void paint(Graphics g) {
   Point2D.Double startQ = new Point2D.Double(50, 75); // Start point
   Point2D.Double endQ = new Point2D.Double(150, 75); // End point
   Point2D.Double control = new Point2D.Double(80, 25); // Control point
   // Points for cubic curve
   Point2D.Double startC = new Point2D.Double(50, 150); // Start point
   Point2D.Double endC = new Point2D.Double(150, 150); // End point
   Point2D.Double controlStart = new Point2D.Double(80, 100); // 1st control
                                                               // point
   Point2D.Double controlEnd = new Point2D.Double(160, 100); // 2nd control
                                                             // point
   QuadCurve2D.Double quadCurve; // Quadratic curve
   CubicCurve2D.Double cubicCurve; // Cubic curve
   quadCurve = new QuadCurve2D.Double( // Create quadratic curve
       startQ.x, startQ.y, // Segment start point
       control.x, control.y, // Control point
       endQ.x, endQ.y); // Segment end point
   cubicCurve = new CubicCurve2D.Double( // Create cubic curve
       startC.x, startC.y, // Segment start point
       controlStart.x, controlStart.y, // Control point for start
       controlEnd.x, controlEnd.y, // Control point for end
       endC.x, endC.y); // Segment end point
   Graphics2D g2D = (Graphics2D) g; // Get a 2D device context
   // Draw the curves
   g2D.setPaint(Color.BLUE);
   g2D.draw(quadCurve);
   g2D.draw(cubicCurve);
 }
 public static void main(String[] args) {
   JFrame frame = new JFrame();
   frame.getContentPane().add(new MainClass());
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.setSize(200, 200);
   frame.setVisible(true);
 }

}

 </source>
   
  
 
  

QuadCurve2D.Float.Float(float x1, float y1, float ctrlx, float ctrly, float x2, float y2)

   <source lang="java">
 

import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.QuadCurve2D; public class Main extends Frame {

 public static void main(String[] args) {
   (new Main()).setVisible(true);
 }
 public Main() {
   super("Shape Sampler");
   setSize(400, 550);
 }
 public void paint(Graphics g) {
   Graphics2D g2d = (Graphics2D) g;
   QuadCurve2D quadcurve = new QuadCurve2D.Float(50, 300, 320, 300, 350, 400);
   g2d.draw(quadcurve);
 }

}

 </source>