protected Vec4 getSurfacePoint(LatLon latlon, double elevation) {
Vec4 point = null;
SceneController sc = this.getApp().getWwd().getSceneController();
Globe globe = this.getApp().getWwd().getModel().getGlobe();
if (sc.getTerrain() != null) {
point =
sc.getTerrain()
.getSurfacePoint(
latlon.getLatitude(),
latlon.getLongitude(),
elevation * sc.getVerticalExaggeration());
}
if (point == null) {
double e = globe.getElevation(latlon.getLatitude(), latlon.getLongitude());
point =
globe.computePointFromPosition(
latlon.getLatitude(),
latlon.getLongitude(),
(e + elevation) * sc.getVerticalExaggeration());
}
return point;
}
protected Vec4 getPoint(LatLon latlon, double elevation) {
SceneController sc = this.getApp().getWwd().getSceneController();
Globe globe = this.getApp().getWwd().getModel().getGlobe();
double e = globe.getElevation(latlon.getLatitude(), latlon.getLongitude());
return globe.computePointFromPosition(
latlon.getLatitude(),
latlon.getLongitude(),
(e + elevation) * sc.getVerticalExaggeration());
}
protected void updateView(ScreenAnnotation control, String controlType) {
if (this.wwd == null) return;
if (!(this.wwd.getView() instanceof OrbitView)) return;
OrbitView view = (OrbitView) this.wwd.getView();
view.stopAnimations();
view.stopMovement();
if (controlType.equals(AVKey.VIEW_PAN)) {
resetOrbitView(view);
// Go some distance in the control mouse direction
Angle heading = computePanHeading(view, control);
Angle distance = computePanAmount(this.wwd.getModel().getGlobe(), view, control, panStep);
LatLon newViewCenter =
LatLon.greatCircleEndPosition(view.getCenterPosition(), heading, distance);
// Turn around if passing by a pole - TODO: better handling of the pole crossing situation
if (this.isPathCrossingAPole(newViewCenter, view.getCenterPosition()))
view.setHeading(Angle.POS180.subtract(view.getHeading()));
// Set new center pos
view.setCenterPosition(new Position(newViewCenter, view.getCenterPosition().getElevation()));
} else if (controlType.equals(AVKey.VIEW_LOOK)) {
setupFirstPersonView(view);
Angle heading = computeLookHeading(view, control, headingStep);
Angle pitch = computeLookPitch(view, control, pitchStep);
// Check whether the view will still point at terrain
Vec4 surfacePoint = computeSurfacePoint(view, heading, pitch);
if (surfacePoint != null) {
// Change view state
final Position eyePos = view.getEyePosition(); // Save current eye position
view.setHeading(heading);
view.setPitch(pitch);
view.setZoom(0);
view.setCenterPosition(eyePos); // Set center at the eye position
}
} else if (controlType.equals(AVKey.VIEW_ZOOM_IN)) {
resetOrbitView(view);
view.setZoom(computeNewZoom(view, -zoomStep));
} else if (controlType.equals(AVKey.VIEW_ZOOM_OUT)) {
resetOrbitView(view);
view.setZoom(computeNewZoom(view, zoomStep));
} else if (controlType.equals(AVKey.VIEW_HEADING_LEFT)) {
resetOrbitView(view);
view.setHeading(view.getHeading().addDegrees(headingStep));
} else if (controlType.equals(AVKey.VIEW_HEADING_RIGHT)) {
resetOrbitView(view);
view.setHeading(view.getHeading().addDegrees(-headingStep));
} else if (controlType.equals(AVKey.VIEW_PITCH_UP)) {
resetOrbitView(view);
if (view.getPitch().degrees >= pitchStep)
view.setPitch(view.getPitch().addDegrees(-pitchStep));
} else if (controlType.equals(AVKey.VIEW_PITCH_DOWN)) {
resetOrbitView(view);
if (view.getPitch().degrees <= 90 - pitchStep)
view.setPitch(view.getPitch().addDegrees(pitchStep));
} else if (controlType.equals(AVKey.VIEW_FOV_NARROW)) {
if (view.getFieldOfView().degrees / fovStep >= 4)
view.setFieldOfView(view.getFieldOfView().divide(fovStep));
} else if (controlType.equals(AVKey.VIEW_FOV_WIDE)) {
if (view.getFieldOfView().degrees * fovStep < 120)
view.setFieldOfView(view.getFieldOfView().multiply(fovStep));
} else if (controlType.equals(AVKey.VERTICAL_EXAGGERATION_UP)) {
SceneController sc = this.wwd.getSceneController();
sc.setVerticalExaggeration(sc.getVerticalExaggeration() + this.veStep);
} else if (controlType.equals(AVKey.VERTICAL_EXAGGERATION_DOWN)) {
SceneController sc = this.wwd.getSceneController();
sc.setVerticalExaggeration(Math.max(1d, sc.getVerticalExaggeration() - this.veStep));
}
view.firePropertyChange(AVKey.VIEW, null, view);
}