public void calculate() {
double cx = control.getDouble("camera x");
double cy = control.getDouble("camera y");
double cz = control.getDouble("camera z");
double fx = control.getDouble("camera focus x");
double fy = control.getDouble("camera focus y");
double fz = control.getDouble("camera focus z");
double d = control.getDouble("screen distance");
double r = control.getDouble("rotation");
Camera camera = (Camera) panel.getCamera();
if (cx != camera.getX() || cy != camera.getY() || cz != camera.getZ()) {
camera.setXYZ(cx, cy, cz);
control.setValue("camera azimuth", camera.getAzimuth());
control.setValue("camera altitude", camera.getAltitude());
} else {
double altitude = control.getDouble("camera altitude");
double azimuth = control.getDouble("camera azimuth");
camera.setAzimuthAndAltitude(azimuth, altitude);
control.setValue("camera x", camera.getX());
control.setValue("camera y", camera.getY());
control.setValue("camera z", camera.getZ());
}
camera.setFocusXYZ(fx, fy, fz);
camera.setDistanceToScreen(d);
camera.setRotation(r);
panel.render();
}
public void updateValues() {
Camera camera = (Camera) panel.getCamera();
control.setValue("camera x", camera.getX());
control.setValue("camera y", camera.getY());
control.setValue("camera z", camera.getZ());
control.setValue("camera focus x", camera.getFocusX());
control.setValue("camera focus y", camera.getFocusY());
control.setValue("camera focus z", camera.getFocusZ());
control.setValue("camera altitude", camera.getAltitude());
control.setValue("camera azimuth", camera.getAzimuth());
control.setValue("screen distance", camera.getDistanceToScreen());
control.setValue("rotation", camera.getRotation());
}
public CameraApp() {
ball.setXYZ(0.0, 0.0, 0.0);
ball.setSizeXYZ(0.5, 0.5, 0.5);
ball.getStyle().setFillColor(Color.YELLOW);
// right wall
wallR.setXYZ(6.0, 0.0, 0.0);
wallR.setSizeXYZ(0.2, 4.0, 4.0);
wallR.getStyle().setFillColor(Color.GREEN);
// left wall
wallL.setXYZ(-6.0, 0.0, 0.0);
wallL.setSizeXYZ(0.2, 4.0, 4.0);
wallL.getStyle().setFillColor(Color.GREEN);
// Add the objects
panel.setPreferredMinMax(-6, 6, -6, 6, -6, 6);
panel.getInteractionTarget(org.opensourcephysics.display3d.core.DrawingPanel3D.TARGET_PANEL);
panel.addInteractionListener(this);
panel.addElement(ball);
panel.addElement(wallR);
panel.addElement(wallL);
DrawingFrame3D frame = new DrawingFrame3D();
frame.setDrawingPanel3D(panel);
}
public void reset() {
panel.getCamera().reset();
updateValues();
calculate();
}