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All examples run on MRJ 2.2.
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On Swing!
example source.
public static boolean Example1() {
Jun3dPoint[] points = new Jun3dPoint[20];
Random randomStream = new Random();
for (int i = 0; i < points.length; i++) {
Jun3dPoint point = new Jun3dPoint(randomStream.nextDouble(), randomStream.nextDouble(), randomStream.nextDouble());
points[i] = point;
}
Jun3dBoundingBall boundingBall = Jun3dBoundingBall.FromPoints_(points);
Vector aCollection = new Vector(points.length);
for (int i = 0; i < points.length; i++) {
JunOpenGL3dVertex aJunOpenGL3dVertex = JunOpenGL3dVertex.Point_(points[i]);
aJunOpenGL3dVertex.size_(4);
aJunOpenGL3dVertex.paint_(Color.black);
aCollection.addElement(aJunOpenGL3dVertex);
}
JunOpenGL3dCompoundObject openGLObject = JunOpenGL3dCompoundObject.Components_(aCollection);
JunOpenGL3dCompoundObject openGLBall = (JunOpenGL3dCompoundObject) JunOpenGL3dObject.Globe_radius_center_(15, boundingBall.radius(), boundingBall.center());
openGLBall.paint_(Color.blue);
JunOpenGLStipple stipple = JunOpenGLStipple.Halftone_(0.25);
for (int each = 0; each < openGLBall.components().length; each++) {
openGLBall.components()[each].stipple_(stipple);
}
openGLObject.add_(openGLBall);
openGLObject.show();
//return boundingBall
return true;
}
example source.
public static boolean Example1() {
try {
JunMetaballSolid solid;
JunMetaSphere ball1, ball2, ball3;
Jun3dPoint aPoint;
solid = new JunMetaballSolid();
solid.threshold_(1.0d);
aPoint = new Jun3dPoint(0.0 , 0.0, 0.0);
ball1 = JunMetaSphere.Center_order_weight_(aPoint, 2, 0.4);
aPoint = new Jun3dPoint(0.0 , 0.0 , 1.0);
ball2 = JunMetaSphere.Center_order_weight_(aPoint, 2, 0.4);
aPoint = new Jun3dPoint(0.0 , 0.0 , -1.0);
ball3 = JunMetaSphere.Center_order_weight_(aPoint, 2, 0.4);
solid.add_(ball1);
solid.add_(ball2);
solid.add_(ball3);
StInterval xInterval = new StInterval(-2, 2, 0.2);
StInterval yInterval = new StInterval(-2, 2, 0.2);
StInterval zInterval = new StInterval(-2, 2, 0.2);
JunOpenGL3dObject aJunOpenGL3dObject = solid.asJunOpenGL3dObjectXInterval_yInterval_zInterval_(xInterval, yInterval, zInterval);
aJunOpenGL3dObject.paint_(Color.white);
aJunOpenGL3dObject.show();
//return solid;
return true;
}
catch (Exception e) {
e.printStackTrace();
return false;
}
}
left: JunMetaballSolid, right: JunOpenGL3dObject.
example source.
public static boolean Example2() {
try {
JunMetaballSolid solid;
JunMetaSphere cray, finger;
Jun3dPoint aPoint;
solid = JunMetaballSolid.Threshold_(1.0d);
aPoint = new Jun3dPoint(0.0 , 0.0 , 0.0);
cray = JunMetaSphere.Center_order_weight_(aPoint, 2, 1.0);
aPoint = new Jun3dPoint(1.0 , 0.0 , 0.0);
finger = JunMetaSphere.Center_order_weight_(aPoint, 8, -0.1);
JunOpenGL3dObject smallJunOpenGL3dObject, largeJunOpenGL3dObject;
largeJunOpenGL3dObject = JunOpenGL3dObject.Sphere_radius_(15, 1);
largeJunOpenGL3dObject.paint_(Color.blue);
aPoint = new Jun3dPoint(1.0 , 0.0 , 0.0);
smallJunOpenGL3dObject = JunOpenGL3dObject.Sphere_radius_center_(15, 0.1, aPoint);
smallJunOpenGL3dObject.paint_(Color.red);
JunOpenGL3dCompoundObject.With_with_(largeJunOpenGL3dObject, smallJunOpenGL3dObject).show();
solid.add_(cray);
solid.add_(finger);
StInterval xInterval = StInterval.From_to_by_(-2, 2, 0.2);
StInterval yInterval = StInterval.From_to_by_(-2, 2, 0.2);
StInterval zInterval = StInterval.From_to_by_(-2, 2, 0.2);
JunOpenGL3dObject aJunOpenGL3dObject = solid.asJunOpenGL3dObjectXInterval_yInterval_zInterval_(xInterval, yInterval, zInterval);
aJunOpenGL3dObject.paint_(Color.blue);
aJunOpenGL3dObject.show();
//return solid;
return true;
}
catch (Exception e) {
e.printStackTrace();
return false;
}
}
left: trace, right: triangles.
example source.
public static boolean Example3() {
Vector dots = new Vector();
Random randomStream = new Random();
for (int i = 0; i < 50; i++) {
dots.addElement(new Jun2dPoint(randomStream.nextDouble(), randomStream.nextDouble()));
}
JunVoronoi2dProcessor voronoi = JunVoronoi2dProcessor.Dots_(dots);
voronoi.trace_(true);
Frame frame = new Frame("JunVoronoi2dProcessor Trace Display");
frame.setSize(JunVoronoi2dProcessor.defaultDimension);
frame.setResizable(false);
frame.add(voronoi.canvas());
frame.pack();
frame.show();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
e.getWindow().dispose();
}
});
voronoi.compute();
System.out.println("area: " + voronoi.area());
Graphics gc = null;
StImage anImage = new StImage(300, 300);
Image newImage = SystemResourceSupport.createImage(anImage.width(), anImage.height());
try {
Jun2dPoint[][] triangles = voronoi.triangles();
gc = newImage.getGraphics();
gc.setColor(Color.white);
gc.fillRect(0, 0, newImage.getWidth(null), newImage.getHeight(null));
Point scale = new Point(200, 200);
Point translation = new Point(50, 50);
Rectangle box = new Rectangle(new Point(0, 0), new Dimension(1, 1));
box.x *= scale.x;
box.y *= scale.y;
box.width *= scale.x;
box.height *= scale.y;
box.x += translation.x;
box.y += translation.y;
gc.setColor(Color.red);
gc.drawRect(box.x, box.y, box.width, box.height);
for (int i = 0; i < triangles.length; i++) {
Jun2dPoint[] points = triangles[i];
int[] xPoints = new int[points.length + 1];
int[] yPoints = new int[points.length + 1];
for (int j = 0; j < points.length; j++) {
Jun2dPoint point = points[j];
if (point != null) {
xPoints[j] = (int) (point.x() * scale.x + translation.x);
yPoints[j] = (int) (point.y() * scale.y + translation.y);
}
}
xPoints[points.length] = xPoints[0];
yPoints[points.length] = yPoints[0];
gc.setColor(Color.black);
gc.drawPolyline(xPoints, yPoints, xPoints.length);
}
(new StImage(newImage))._display();
} finally {
gc.dispose();
newImage.flush();
}
//return voronoi;
return true;
}
example source.
public static boolean Example8() {
//area: 3.1256671980047d
System.out.println("This is a low precision example.");
final Vector dots = new Vector();
final int step = 10;
dots.addElement(new Jun2dPoint(0.0d, 0.0d));
StInterval interval = StInterval.From_to_by_(0, 360, step);
interval.do_(new StBlockClosure() {
public Object value_(Object valueObject) {
double degrees = ((Double) valueObject).doubleValue();
double x = Math.cos(JunAngle._DegreesToRadians(degrees));
double y = Math.sin(JunAngle._DegreesToRadians(degrees));
dots.addElement(new Jun2dPoint(x, y));
x = Math.cos(JunAngle._DegreesToRadians(degrees + step / 2));
y = Math.sin(JunAngle._DegreesToRadians(degrees + step / 2));
dots.addElement(new Jun2dPoint(x * 0.5, y * 0.5));
return null;
};
});
JunVoronoi2dProcessor voronoi = JunVoronoi2dProcessor.Dots_(dots);
voronoi.trace_(true);
Frame frame = new Frame("JunVoronoi2dProcessor Trace Display");
frame.setSize(JunVoronoi2dProcessor.defaultDimension);
frame.setResizable(false);
frame.add(voronoi.canvas());
frame.pack();
frame.show();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
e.getWindow().dispose();
}
});
voronoi.compute();
System.out.println("area: " + voronoi.area());
Graphics gc = null;
StImage anImage = new StImage(300, 300);
Image newImage = SystemResourceSupport.createImage(anImage.width(), anImage.height());
try {
Jun2dPoint[][] triangles = voronoi.triangles();
gc = newImage.getGraphics();
gc.setColor(Color.white);
gc.fillRect(0, 0, newImage.getWidth(null), newImage.getHeight(null));
Point scale = new Point(100, 100);
Point translation = new Point(150, 150);
Point origin = new Point(-1, -1);
Rectangle box = new Rectangle(origin, new Dimension(1 - origin.x, 1 - origin.y));
box.x *= scale.x;
box.y *= scale.y;
box.width *= scale.x;
box.height *= scale.y;
box.x += translation.x;
box.y += translation.y;
gc.setColor(Color.red);
gc.drawRect(box.x, box.y, box.width, box.height);
for (int i = 0; i < triangles.length; i++) {
Jun2dPoint[] points = triangles[i];
int[] xPoints = new int[points.length + 1];
int[] yPoints = new int[points.length + 1];
for (int j = 0; j < points.length; j++) {
Jun2dPoint point = points[j];
if (point != null) {
xPoints[j] = (int) (point.x() * scale.x + translation.x);
yPoints[j] = (int) (point.y() * scale.y + translation.y);
}
}
xPoints[points.length] = xPoints[0];
yPoints[points.length] = yPoints[0];
gc.setColor(Color.black);
gc.drawPolyline(xPoints, yPoints, xPoints.length);
}
(new StImage(newImage))._display();
} finally {
gc.dispose();
newImage.flush();
}
//return voronoi;
return true;
}
example source.
public static boolean Example1b() {
final JunVoronoi2dDiagram diagram = new JunVoronoi2dDiagram(new Jun2dPoint(200, 200));
diagram.displayCircle_(true);
final Random random = new Random();
Canvas canvas = new Canvas() {
public void paint(Graphics g) {
g.drawImage(diagram.asImage(), 0, 0, null);
return;
}
public void displayOn_(Graphics g) {
this.paint(g);
return;
}
};
canvas.setSize(diagram.extentByDimension());
Frame frame = new Frame(diagram.labelString());
frame.add(canvas);
frame.pack();
frame.show();
frame.setResizable(false);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
e.getWindow().dispose();
}
});
for (int i = 0; i < 50; i++) {
diagram.add_(new Jun2dPoint(random.nextDouble(), random.nextDouble()).scaledBy_(diagram.extent()));
diagram.displayOn_(canvas.getGraphics());
}
System.out.println("area: " + diagram.area());
return true;
}
example source.
public static boolean Example6() {
System.out.println("This is a low precision example.");
final JunVoronoi2dDiagram diagram = new JunVoronoi2dDiagram(new Jun2dPoint(200, 200));
final Vector dots = new Vector();
final int step = 10;
dots.addElement(new Jun2dPoint(0.0d, 0.0d));
StInterval interval = StInterval.From_to_by_(0, 360, step);
interval.do_(new StBlockClosure() {
public Object value_(Object valueObject) {
double degrees = ((Double) valueObject).doubleValue();
double x = Math.cos(JunAngle._DegreesToRadians(degrees));
double y = Math.sin(JunAngle._DegreesToRadians(degrees));
dots.addElement(new Jun2dPoint(x, y));
x = Math.cos(JunAngle._DegreesToRadians(degrees + step / 2));
y = Math.sin(JunAngle._DegreesToRadians(degrees + step / 2));
dots.addElement(new Jun2dPoint(x * 0.5, y * 0.5));
return null;
}
});
for (Enumeration e = dots.elements(); e.hasMoreElements(); ) {
Jun2dPoint dot = (Jun2dPoint) e.nextElement();
diagram.add_( dot.plus_(1).scaledBy_(diagram.extent().dividedBy_(2)) );
}
Frame window = JunDisplayModel.Visual_(diagram.asImage()).open();
window.setTitle(diagram.labelString());
window.setResizable(false);
System.out.println("area: " + diagram.area());
return true;
}
left: DelaunayDiagram, right: diagram.asVoronoiDiagram().
example source.
public static boolean Example2() {
final JunDelaunay2dDiagram diagram = new JunDelaunay2dDiagram(new Jun2dPoint(200, 200));
Random random = new Random();
for (int i = 0; i < 50; i++) {
diagram.add_(new Jun2dPoint(random.nextDouble(), random.nextDouble()).scaledBy_(diagram.extent()));
}
Canvas canvas = new Canvas() {
public void paint(Graphics g) {
g.drawImage(diagram.asImage(), 0, 0, null);
return;
}
public void displayOn_(Graphics g) {
this.paint(g);
return;
}
};
canvas.setSize(diagram.extentByDimension());
Frame window1 = JunDisplayModel.Visual_(diagram.asImage()).open();
window1.setTitle(diagram.labelString());
window1.setResizable(false);
Canvas canvas2 = new Canvas() {
public void paint(Graphics g) {
g.drawImage(diagram.asVoronoiDiagram().asImage(), 0, 0, null);
return;
}
public void displayOn_(Graphics g) {
this.paint(g);
return;
}
};
canvas2.setSize(diagram.extentByDimension());
Frame window2 = JunDisplayModel.Visual_(diagram.asVoronoiDiagram().asImage()).open();
window2.setTitle(diagram.asVoronoiDiagram().labelString());
window2.setResizable(false);
System.out.println("area: " + diagram.area());
return true;
}
example source.
public static boolean Example5() {
System.out.println("This is a low precision example.");
final JunDelaunay2dDiagram diagram = new JunDelaunay2dDiagram(new Jun2dPoint(200, 200));
final int roundTimes = 10;
int count = 0;
for (int i = 0; i <= roundTimes; i++) {
for (int j = 0; j <= roundTimes; j++) {
if (count % 2 == 0) {
diagram.add_((new Jun2dPoint((double) j / 10, (double) i / 10)).scaledBy_(diagram.extent()));
}
count++;
}
}
Canvas canvas = new Canvas() {
public void paint(Graphics g) {
g.drawImage(diagram.asImage(), 0, 0, null);
return;
}
public void displayOn_(Graphics g) {
this.paint(g);
return;
}
};
canvas.setSize(diagram.extentByDimension());
Frame window = JunDisplayModel.Visual_(diagram.asImage()).open();
window.setTitle(diagram.labelString());
window.setResizable(false);
System.out.println("area: " + diagram.area());
return true;
}