diff options
Diffstat (limited to 'CSMath/src/CulkinAsssignmentNine.java')
| -rw-r--r-- | CSMath/src/CulkinAsssignmentNine.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/CSMath/src/CulkinAsssignmentNine.java b/CSMath/src/CulkinAsssignmentNine.java new file mode 100644 index 0000000..da4290d --- /dev/null +++ b/CSMath/src/CulkinAsssignmentNine.java @@ -0,0 +1,215 @@ +import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.GridLayout;
+import java.util.Arrays;
+
+import javax.swing.DefaultListModel;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JList;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JSplitPane;
+import javax.swing.ListCellRenderer;
+
+public class CulkinAsssignmentNine {
+ public static void main(String[] args) {
+ JFrame fram = new JFrame();
+ fram.setLayout(new GridLayout(1, 1));
+
+ JPanel canvas = new JPanel();
+ canvas.setLayout(new GridLayout(1, 1));
+
+ JPanel points = new JPanel();
+ points.setLayout(new BorderLayout());
+
+ JPanel listPanel = new JPanel();
+ listPanel.setLayout(new GridLayout(1, 1));
+
+ DefaultListModel<TDPoint> pointModel = new DefaultListModel<>();
+
+ JList<TDPoint> pointList = new JList<>(pointModel);
+ pointList.setCellRenderer(new TDPointRenderer());
+
+ JScrollPane listScroller = new JScrollPane(pointList);
+
+ listPanel.add(listScroller);
+
+ JPanel buttonPanel = new JPanel();
+ buttonPanel.setLayout(new GridLayout(1, 2));
+
+ JButton addPoint = new JButton("Add Control Point");
+
+ JButton remPoint = new JButton("Remove Control Point");
+
+ buttonPanel.add(addPoint);
+ buttonPanel.add(remPoint);
+
+ points.add(listPanel, BorderLayout.CENTER);
+ points.add(buttonPanel, BorderLayout.PAGE_END);
+
+ JSplitPane main = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, points, canvas);
+
+ fram.add(main);
+
+ fram.setSize(640, 480);
+ fram.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+ fram.setVisible(true);
+ }
+}
+
+class Bezier {
+ public final TDPoint[] controls;
+
+ public Bezier(TDPoint... points) {
+ controls = points;
+ }
+
+ public TDPoint eval(double t) {
+ return evalIntern(t, controls.length, 0);
+ }
+
+ private TDPoint evalIntern(double t, int j, int k) {
+ if (j == 0)
+ return controls[k];
+
+ TDPoint l = evalIntern(t, j - 1, k);
+ TDPoint r = evalIntern(t, j - 1, k + 1);
+
+ l = l.multiply(1 - t);
+ r = r.multiply(t);
+
+ return TDPoint.add(l, r);
+ }
+
+ public Bezier[] decompose(double t) {
+ Bezier[] curves = new Bezier[2];
+
+ {
+ TDPoint[] points = new TDPoint[controls.length];
+ for (int i = 0; i < points.length; i++) {
+ points[i] = evalIntern(t, i, 0);
+ }
+ curves[0] = new Bezier(points);
+ }
+
+ {
+ TDPoint[] points = new TDPoint[controls.length];
+ for (int i = 0; i < points.length; i++) {
+ points[i] = evalIntern(t, (points.length - 1) - i, i);
+ }
+ curves[1] = new Bezier(points);
+ }
+
+ return curves;
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + Arrays.hashCode(controls);
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ Bezier other = (Bezier) obj;
+ if (!Arrays.equals(controls, other.controls))
+ return false;
+ return true;
+ }
+
+ @Override
+ public String toString() {
+ return "Bezier [controls=" + Arrays.toString(controls) + "]";
+ }
+}
+
+class TDPoint {
+ public final double x;
+ public final double y;
+
+ public TDPoint(double x, double y) {
+ this.x = x;
+ this.y = y;
+ }
+
+ public static TDPoint p2(double x, double y) {
+ return new TDPoint(x, y);
+ }
+
+ public TDPoint multiply(double s) {
+ return p2(x * s, y * s);
+ }
+
+ public static TDPoint add(TDPoint p1, TDPoint p2) {
+ return p2(p1.x + p2.x, p1.y + p2.y);
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ long temp;
+ temp = Double.doubleToLongBits(x);
+ result = prime * result + (int) (temp ^ (temp >>> 32));
+ temp = Double.doubleToLongBits(y);
+ result = prime * result + (int) (temp ^ (temp >>> 32));
+ return result;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ TDPoint other = (TDPoint) obj;
+ if (Double.doubleToLongBits(x) != Double.doubleToLongBits(other.x))
+ return false;
+ if (Double.doubleToLongBits(y) != Double.doubleToLongBits(other.y))
+ return false;
+ return true;
+ }
+
+ @Override
+ public String toString() {
+ return "TDPoint [x=" + x + ", y=" + y + "]";
+ }
+}
+
+final class TDPointRenderer extends JLabel implements ListCellRenderer<TDPoint> {
+ private static final long serialVersionUID = 629873168260730449L;
+
+ public TDPointRenderer() {
+ setOpaque(true);
+ setHorizontalAlignment(CENTER);
+ setVerticalAlignment(CENTER);
+ }
+
+ @Override
+ public Component getListCellRendererComponent(JList<? extends TDPoint> list, TDPoint value, int index,
+ boolean isSelected, boolean cellHasFocus) {
+ if (isSelected) {
+ setBackground(list.getSelectionBackground());
+ setForeground(list.getSelectionForeground());
+ } else {
+ setBackground(list.getBackground());
+ setForeground(list.getForeground());
+ }
+
+ setText(String.format("(%.2d, %.2d)", value.x, value.y));
+
+ return this;
+ }
+}
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