private void adjustDateLineCrossingPoints() {
ArrayList<LatLon> corners = new ArrayList<LatLon>(Arrays.asList(sw, se, nw, ne));
if (!LatLon.locationsCrossDateLine(corners)) return;
double lonSign = 0;
for (LatLon corner : corners) {
if (Math.abs(corner.getLongitude().degrees) != 180)
lonSign = Math.signum(corner.getLongitude().degrees);
}
if (lonSign == 0) return;
if (Math.abs(sw.getLongitude().degrees) == 180
&& Math.signum(sw.getLongitude().degrees) != lonSign)
sw = new Position(sw.getLatitude(), sw.getLongitude().multiply(-1), sw.getElevation());
if (Math.abs(se.getLongitude().degrees) == 180
&& Math.signum(se.getLongitude().degrees) != lonSign)
se = new Position(se.getLatitude(), se.getLongitude().multiply(-1), se.getElevation());
if (Math.abs(nw.getLongitude().degrees) == 180
&& Math.signum(nw.getLongitude().degrees) != lonSign)
nw = new Position(nw.getLatitude(), nw.getLongitude().multiply(-1), nw.getElevation());
if (Math.abs(ne.getLongitude().degrees) == 180
&& Math.signum(ne.getLongitude().degrees) != lonSign)
ne = new Position(ne.getLatitude(), ne.getLongitude().multiply(-1), ne.getElevation());
}
protected void movePolygon(Point previousMousePoint, Point mousePoint) {
// Intersect a ray through each mouse point, with a geoid passing through the reference
// elevation.
// If either ray fails to intersect the geoid, then ignore this event. Use the difference
// between the two
// intersected positions to move the control point's location.
View view = this.wwd.getView();
Globe globe = this.wwd.getModel().getGlobe();
Position refPos = this.polygon.getReferencePosition();
if (refPos == null) return;
Line ray = view.computeRayFromScreenPoint(mousePoint.getX(), mousePoint.getY());
Line previousRay =
view.computeRayFromScreenPoint(previousMousePoint.getX(), previousMousePoint.getY());
Vec4 vec = AirspaceEditorUtil.intersectGlobeAt(this.wwd, refPos.getElevation(), ray);
Vec4 previousVec =
AirspaceEditorUtil.intersectGlobeAt(this.wwd, refPos.getElevation(), previousRay);
if (vec == null || previousVec == null) {
return;
}
Position pos = globe.computePositionFromPoint(vec);
Position previousPos = globe.computePositionFromPoint(previousVec);
LatLon change = pos.subtract(previousPos);
this.polygon.move(new Position(change.getLatitude(), change.getLongitude(), 0.0));
}
/**
* Select the visible grid elements
*
* @param dc the current <code>DrawContext</code>.
*/
protected void selectRenderables(DrawContext dc) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
Sector vs = dc.getVisibleSector();
OrbitView view = (OrbitView) dc.getView();
// Compute labels offset from view center
Position centerPos = view.getCenterPosition();
Double pixelSizeDegrees =
Angle.fromRadians(
view.computePixelSizeAtDistance(view.getZoom())
/ dc.getGlobe().getEquatorialRadius())
.degrees;
Double labelOffsetDegrees = pixelSizeDegrees * view.getViewport().getWidth() / 4;
Position labelPos =
Position.fromDegrees(
centerPos.getLatitude().degrees - labelOffsetDegrees,
centerPos.getLongitude().degrees - labelOffsetDegrees,
0);
Double labelLatDegrees = labelPos.getLatitude().normalizedLatitude().degrees;
labelLatDegrees = Math.min(Math.max(labelLatDegrees, -76), 78);
labelPos =
new Position(
Angle.fromDegrees(labelLatDegrees), labelPos.getLongitude().normalizedLongitude(), 0);
if (vs != null) {
for (GridElement ge : this.gridElements) {
if (ge.isInView(dc)) {
if (ge.renderable instanceof GeographicText) {
GeographicText gt = (GeographicText) ge.renderable;
if (labelPos.getLatitude().degrees < 72
|| "*32*34*36*".indexOf("*" + gt.getText() + "*") == -1) {
// Adjust label position according to eye position
Position pos = gt.getPosition();
if (ge.type.equals(GridElement.TYPE_LATITUDE_LABEL))
pos =
Position.fromDegrees(
pos.getLatitude().degrees,
labelPos.getLongitude().degrees,
pos.getElevation());
else if (ge.type.equals(GridElement.TYPE_LONGITUDE_LABEL))
pos =
Position.fromDegrees(
labelPos.getLatitude().degrees,
pos.getLongitude().degrees,
pos.getElevation());
gt.setPosition(pos);
}
}
this.graticuleSupport.addRenderable(ge.renderable, GRATICULE_UTM);
}
}
// System.out.println("Total elements: " + count + " visible sector: " + vs);
}
}
protected void doMoveAirspaceLaterally(
WorldWindow wwd, Airspace airspace, Point mousePoint, Point previousMousePoint) {
// Intersect a ray throuh each mouse point, with a geoid passing through the reference
// elevation. Since
// most airspace control points follow a fixed altitude, this will track close to the intended
// mouse position.
// If either ray fails to intersect the geoid, then ignore this event. Use the difference
// between the two
// intersected positions to move the control point's location.
if (!(airspace instanceof Movable)) {
return;
}
Movable movable = (Movable) airspace;
View view = wwd.getView();
Globe globe = wwd.getModel().getGlobe();
Position refPos = movable.getReferencePosition();
if (refPos == null) return;
// Convert the reference position into a cartesian point. This assumes that the reference
// elevation is defined
// by the airspace's lower altitude.
Vec4 refPoint = null;
if (airspace.isTerrainConforming()[LOWER_ALTITUDE])
refPoint = wwd.getSceneController().getTerrain().getSurfacePoint(refPos);
if (refPoint == null) refPoint = globe.computePointFromPosition(refPos);
// Convert back to a position.
refPos = globe.computePositionFromPoint(refPoint);
Line ray = view.computeRayFromScreenPoint(mousePoint.getX(), mousePoint.getY());
Line previousRay =
view.computeRayFromScreenPoint(previousMousePoint.getX(), previousMousePoint.getY());
Vec4 vec = AirspaceEditorUtil.intersectGlobeAt(wwd, refPos.getElevation(), ray);
Vec4 previousVec = AirspaceEditorUtil.intersectGlobeAt(wwd, refPos.getElevation(), previousRay);
if (vec == null || previousVec == null) {
return;
}
Position pos = globe.computePositionFromPoint(vec);
Position previousPos = globe.computePositionFromPoint(previousVec);
LatLon change = pos.subtract(previousPos);
movable.move(new Position(change.getLatitude(), change.getLongitude(), 0.0));
this.fireAirspaceMoved(new AirspaceEditEvent(wwd, airspace, this));
}
protected void dragWholeShape(DragSelectEvent dragEvent, Movable dragObject) {
View view = getWwd().getView();
EllipsoidalGlobe globe = (EllipsoidalGlobe) getWwd().getModel().getGlobe();
// Compute ref-point position in screen coordinates.
Position refPos = dragObject.getReferencePosition();
if (refPos == null) return;
Vec4 refPoint = globe.computePointFromPosition(refPos);
Vec4 screenRefPoint = view.project(refPoint);
// Compute screen-coord delta since last event.
int dx = dragEvent.getPickPoint().x - dragEvent.getPreviousPickPoint().x;
int dy = dragEvent.getPickPoint().y - dragEvent.getPreviousPickPoint().y;
// Find intersection of screen coord ref-point with globe.
double x = screenRefPoint.x + dx;
double y =
dragEvent.getMouseEvent().getComponent().getSize().height - screenRefPoint.y + dy - 1;
Line ray = view.computeRayFromScreenPoint(x, y);
Intersection inters[] = globe.intersect(ray, refPos.getElevation());
if (inters != null) {
// Intersection with globe. Move reference point to the intersection point.
Position p = globe.computePositionFromPoint(inters[0].getIntersectionPoint());
dragObject.moveTo(p);
}
}
protected Angle computePanAmount(
Globe globe, OrbitView view, ScreenAnnotation control, double panStep) {
// Compute last pick point distance relative to pan control center
double size = control.getAttributes().getSize().width * control.getAttributes().getScale();
Vec4 center = new Vec4(control.getScreenPoint().x, control.getScreenPoint().y + size / 2, 0);
double px = lastPickPoint.x - center.x;
double py = view.getViewport().getHeight() - lastPickPoint.y - center.y;
double pickDistance = Math.sqrt(px * px + py * py);
double pickDistanceFactor = Math.min(pickDistance / 10, 5);
// Compute globe angular distance depending on eye altitude
Position eyePos = view.getEyePosition();
double radius = globe.getRadiusAt(eyePos);
double minValue = 0.5 * (180.0 / (Math.PI * radius)); // Minimum change ~0.5 meters
double maxValue = 1.0; // Maximum change ~1 degree
// Compute an interpolated value between minValue and maxValue, using (eye altitude)/(globe
// radius) as
// the interpolant. Interpolation is performed on an exponential curve, to keep the value from
// increasing too quickly as eye altitude increases.
double a = eyePos.getElevation() / radius;
a = (a < 0 ? 0 : (a > 1 ? 1 : a));
double expBase = 2.0; // Exponential curve parameter.
double value =
minValue + (maxValue - minValue) * ((Math.pow(expBase, a) - 1.0) / (expBase - 1.0));
return Angle.fromDegrees(value * pickDistanceFactor * panStep);
}
protected void setDepthFunc(DrawContext dc, OrderedIcon uIcon, Vec4 screenPoint) {
GL gl = dc.getGL();
if (uIcon.icon.isAlwaysOnTop()) {
gl.glDepthFunc(GL.GL_ALWAYS);
return;
}
Position eyePos = dc.getView().getEyePosition();
if (eyePos == null) {
gl.glDepthFunc(GL.GL_ALWAYS);
return;
}
double altitude = eyePos.getElevation();
if (altitude < (dc.getGlobe().getMaxElevation() * dc.getVerticalExaggeration())) {
double depth = screenPoint.z - (8d * 0.00048875809d);
depth = depth < 0d ? 0d : (depth > 1d ? 1d : depth);
gl.glDepthFunc(GL.GL_LESS);
gl.glDepthRange(depth, depth);
} else if (uIcon.eyeDistance > uIcon.horizonDistance) {
gl.glDepthFunc(GL.GL_EQUAL);
gl.glDepthRange(1d, 1d);
} else {
gl.glDepthFunc(GL.GL_ALWAYS);
}
}
protected void setEyePosition(
AnimationController animControl,
View view,
Position position,
ViewInputAttributes.ActionAttributes attrib) {
MoveToPositionAnimator posAnimator =
(MoveToPositionAnimator) animControl.get(VIEW_ANIM_POSITION);
double smoothing = attrib.getSmoothingValue();
if (!(attrib.isEnableSmoothing() && this.isEnableSmoothing())) smoothing = 0.0;
if (smoothing != 0.0) {
double elevation =
((FlyViewLimits) view.getViewPropertyLimits())
.limitEyeElevation(position, view.getGlobe());
if (elevation != position.getElevation()) {
position = new Position(position, elevation);
}
if (posAnimator == null) {
posAnimator =
new MoveToPositionAnimator(
view.getEyePosition(),
position,
smoothing,
OrbitViewPropertyAccessor.createEyePositionAccessor(view));
animControl.put(VIEW_ANIM_POSITION, posAnimator);
} else {
posAnimator.setEnd(position);
posAnimator.start();
}
}
view.firePropertyChange(AVKey.VIEW, null, view);
}
public void goTo(Position lookAtPos, double distance) {
Globe globe = this.getView().getGlobe();
BasicFlyView view = (BasicFlyView) this.getView();
Position lookFromPos =
new Position(
lookAtPos,
globe.getElevation(lookAtPos.getLatitude(), lookAtPos.getLongitude()) + distance);
// TODO: scale on mid-altitude?
final long MIN_LENGTH_MILLIS = 4000;
final long MAX_LENGTH_MILLIS = 16000;
long timeToMove =
AnimationSupport.getScaledTimeMillisecs(
view.getEyePosition(), lookFromPos, MIN_LENGTH_MILLIS, MAX_LENGTH_MILLIS);
FlyToFlyViewAnimator panAnimator =
FlyToFlyViewAnimator.createFlyToFlyViewAnimator(
view,
view.getEyePosition(),
lookFromPos,
view.getHeading(),
Angle.ZERO,
view.getPitch(),
Angle.ZERO,
view.getEyePosition().getElevation(),
lookFromPos.getElevation(),
timeToMove,
WorldWind.ABSOLUTE);
this.gotoAnimControl.put(VIEW_ANIM_PAN, panAnimator);
this.getView().firePropertyChange(AVKey.VIEW, null, this.getView());
}
/**
* Sets the vector element at the specified position, as a geographic Position. This buffer's
* logical vector size must be at least 2.
*
* @param position the logical vector position.
* @param p the geographic Position to set.
* @throws IllegalArgumentException if the position is out of range, if the Position is null, or
* if this buffer cannot store a Position.
*/
public void putPosition(int position, Position p) {
if (position < 0 || position >= this.getSize()) {
String message =
Logging.getMessage("generic.ArgumentOutOfRange", "position < 0 or position >= size");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (p == null) {
String message = Logging.getMessage("nullValue.PositionIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (this.coordsPerVec < 2) {
String message = Logging.getMessage("generic.BufferIncompatible", this);
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
double[] compArray = new double[3];
compArray[1] = p.getLatitude().degrees;
compArray[0] = p.getLongitude().degrees;
compArray[2] = p.getElevation();
this.put(position, compArray);
}
private void applyModify() {
layer.setName(layerNameTextField.getText());
Color choosenColor = colorBtn.getBackground();
color = new Color(choosenColor.getRed(), choosenColor.getGreen(), choosenColor.getBlue());
List<Position> positions = new ArrayList<Position>();
for (int i = 0; i < latTexts.size(); i++) {
Position p = layer.getPositions().get(i);
double lat = Double.valueOf(latTexts.get(i).getText());
double lng = Double.valueOf(lngTexts.get(i).getText());
Position newP =
new Position(Angle.fromDegrees(lat), Angle.fromDegrees(lng), p.getElevation());
positions.add(newP);
}
layer.setPositions(positions);
path.setPositions(positions);
// Create and set an attribute bundle.
ShapeAttributes attrs = new BasicShapeAttributes();
Material material = new Material(color);
attrs.setOutlineMaterial(material);
attrs.setOutlineWidth(Double.valueOf(sizeTextField.getText()));
attrs.setOutlineOpacity(Double.valueOf(opacityTextField.getText()));
// path.setColor(color);
// path.setLineWidth(Double.valueOf(sizeTextField.getText()));
path.setAttributes(attrs);
layer.refresh();
frame.getLayerPanelDialog().getLayerPanel().update();
}
protected void setPolygonHeight(Point previousMousePoint, Point mousePoint) {
// Find the closest points between the rays through each screen point, and the ray from the
// control point
// and in the direction of the globe's surface normal. Compute the elevation difference between
// these two
// points, and use that as the change in polygon height.
Position referencePos = this.polygon.getReferencePosition();
if (referencePos == null) return;
Vec4 referencePoint = this.wwd.getModel().getGlobe().computePointFromPosition(referencePos);
Vec4 surfaceNormal =
this.wwd
.getModel()
.getGlobe()
.computeSurfaceNormalAtLocation(
referencePos.getLatitude(), referencePos.getLongitude());
Line verticalRay = new Line(referencePoint, surfaceNormal);
Line screenRay =
this.wwd.getView().computeRayFromScreenPoint(mousePoint.getX(), mousePoint.getY());
Line previousScreenRay =
this.wwd
.getView()
.computeRayFromScreenPoint(previousMousePoint.getX(), previousMousePoint.getY());
Vec4 pointOnLine = AirspaceEditorUtil.nearestPointOnLine(verticalRay, screenRay);
Vec4 previousPointOnLine =
AirspaceEditorUtil.nearestPointOnLine(verticalRay, previousScreenRay);
Position pos = this.wwd.getModel().getGlobe().computePositionFromPoint(pointOnLine);
Position previousPos =
this.wwd.getModel().getGlobe().computePositionFromPoint(previousPointOnLine);
double elevationChange = pos.getElevation() - previousPos.getElevation();
java.util.List<Position> boundary = new ArrayList<Position>();
for (LatLon ll : this.polygon.getOuterBoundary()) {
boundary.add(new Position(ll, ((Position) ll).getElevation() + elevationChange));
}
this.polygon.setOuterBoundary(boundary);
}
public void onSuccess(Position[] positions) {
for (Position p : positions) {
Logging.logger()
.info(
p.getLatitude().degrees
+ ","
+ p.getLongitude().degrees
+ " --> "
+ p.getElevation());
}
}
protected static void writeReferencePositions(String filePath, ArrayList<Position> positions)
throws FileNotFoundException {
PrintStream os = new PrintStream(new File(filePath));
for (Position pos : positions) {
os.format(
"%.5f %.5f %.4f\n",
pos.getLatitude().degrees, pos.getLongitude().degrees, pos.getElevation());
}
os.flush();
}
protected static boolean isNameVisible(
DrawContext dc, PlaceNameService service, Position namePosition) {
double elevation = dc.getVerticalExaggeration() * namePosition.getElevation();
Vec4 namePoint =
dc.getGlobe()
.computePointFromPosition(
namePosition.getLatitude(), namePosition.getLongitude(), elevation);
Vec4 eyeVec = dc.getView().getEyePoint();
double dist = eyeVec.distanceTo3(namePoint);
return dist >= service.getMinDisplayDistance() && dist <= service.getMaxDisplayDistance();
}
protected void moveControlPoint(
ControlPointMarker controlPoint, Point lastMousePoint, Point moveToPoint) {
View view = this.wwd.getView();
Globe globe = this.wwd.getModel().getGlobe();
Position refPos = controlPoint.getPosition();
if (refPos == null) return;
Line ray = view.computeRayFromScreenPoint(moveToPoint.getX(), moveToPoint.getY());
Line previousRay = view.computeRayFromScreenPoint(lastMousePoint.getX(), lastMousePoint.getY());
Vec4 vec = AirspaceEditorUtil.intersectGlobeAt(this.wwd, refPos.getElevation(), ray);
Vec4 previousVec =
AirspaceEditorUtil.intersectGlobeAt(this.wwd, refPos.getElevation(), previousRay);
if (vec == null || previousVec == null) {
return;
}
Position pos = globe.computePositionFromPoint(vec);
Position previousPos = globe.computePositionFromPoint(previousVec);
LatLon change = pos.subtract(previousPos);
java.util.List<LatLon> boundary = new ArrayList<LatLon>();
for (LatLon ll : this.polygon.getOuterBoundary()) {
boundary.add(ll);
}
boundary.set(controlPoint.getIndex(), new Position(pos.add(change), refPos.getAltitude()));
// ExtrudedPolygon ensures that the last boundary position is the same as the first. Remove the
// last point
// before setting the boundary.
boundary.remove(boundary.size() - 1);
this.polygon.setOuterBoundary(boundary);
}
private static Position clampedCenter(Position unclampedCenter) {
if (unclampedCenter == null) return null;
// Clamp latitude to the range [-90, 90],
// Normalize longitude to the range [-180, 180],
// Don't change elevation.
double lat = unclampedCenter.getLatitude().degrees;
double lon = unclampedCenter.getLongitude().degrees;
double elev = unclampedCenter.getElevation();
lon = lon % 360;
return Position.fromDegrees(
lat > 90 ? 90 : (lat < -90 ? -90 : lat),
lon > 180 ? lon - 360 : (lon < -180 ? 360 + lon : lon),
elev);
}
protected void onVerticalTranslate(
double translateChange,
double totalTranslateChange,
ViewInputAttributes.DeviceAttributes deviceAttributes,
ViewInputAttributes.ActionAttributes actionAttribs) {
this.stopGoToAnimators();
double elevChange =
-(totalTranslateChange * getScaleValueElevation(deviceAttributes, actionAttribs));
View view = this.getView();
Position position = view.getEyePosition();
Position newPos = new Position(position, position.getElevation() + (elevChange));
this.setEyePosition(uiAnimControl, view, newPos, actionAttribs);
view.firePropertyChange(AVKey.VIEW, null, view);
}
/**
* Compute the view range footprint on the globe.
*
* @param dc the current <code>DrawContext</code>
* @param steps the number of steps.
* @return an array list of <code>LatLon</code> forming a closed shape.
*/
protected ArrayList<LatLon> computeViewFootPrint(DrawContext dc, int steps) {
ArrayList<LatLon> positions = new ArrayList<LatLon>();
Position eyePos = dc.getView().getEyePosition();
Angle distance =
Angle.fromRadians(
Math.asin(
dc.getView().getFarClipDistance()
/ (dc.getGlobe().getRadius() + eyePos.getElevation())));
if (distance.degrees > 10) {
double headStep = 360d / steps;
Angle heading = Angle.ZERO;
for (int i = 0; i <= steps; i++) {
LatLon p = LatLon.greatCircleEndPosition(eyePos, heading, distance);
positions.add(p);
heading = heading.addDegrees(headStep);
}
return positions;
} else return null;
}
/**
* Indicates whether the layer is active based on arbitrary criteria. The method implemented here
* is a default indicating the layer is active if the current altitude is within the layer's min
* and max active altitudes. Subclasses able to consider more criteria should override this
* implementation.
*
* @param dc the current draw context
* @return <code>true</code> if the layer is active, <code>false</code> otherwise.
*/
public boolean isLayerActive(DrawContext dc) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalStateException(message);
}
if (null == dc.getView()) {
String message = Logging.getMessage("layers.AbstractLayer.NoViewSpecifiedInDrawingContext");
Logging.logger().severe(message);
throw new IllegalStateException(message);
}
Position eyePos = dc.getView().getEyePosition();
if (eyePos == null) return false;
double altitude = eyePos.getElevation();
return altitude >= this.minActiveAltitude && altitude <= this.maxActiveAltitude;
}
@Override
public void doRender(DrawContext dc) {
Position eyePos = dc.getView().getEyePosition();
if (eyePos == null) return;
// View altitude
float alt = (float) eyePos.getElevation();
alt = alt < 100 ? 100 : alt; // Clamp altitudes below 100m
// Start based on view altitude
float start = alt * this.nearFactor;
// End based on distance to horizon
float end = (float) (dc.getView().getHorizonDistance() * this.farFactor);
// Set GL fog
GL2 gl = dc.getGL().getGL2();
gl.glFogfv(GL2.GL_FOG_COLOR, fogColor, 0); // Set fog color
gl.glFogi(GL2.GL_FOG_MODE, GL2.GL_LINEAR); // Set fog mode
gl.glFogf(GL2.GL_FOG_START, start); // Set fog start distance
gl.glFogf(GL2.GL_FOG_END, end); // Set fog end distance
gl.glHint(GL2.GL_FOG_HINT, GL2.GL_DONT_CARE); // Set fog hint
gl.glEnable(GL2.GL_FOG); // Enable fog
}
private Angle computeLatOrLonChange(double amount, boolean slow) {
if (this.canvas == null
|| this.canvas.getModel() == null
|| this.canvas.getModel().getGlobe() == null
|| this.view == null
|| this.view.getEyePosition() == null) {
return Angle.ZERO;
}
Position eyePos = this.view.getEyePosition();
double normAlt =
(eyePos.getElevation() / this.canvas.getModel().getGlobe().getRadiusAt(eyePos));
if (normAlt < 0) normAlt = 0;
else if (normAlt > 1) normAlt = 1;
double coeff = (0.0001 * (1 - normAlt)) + (2 * normAlt);
if (slow) coeff /= 4.0;
return Angle.fromDegrees(coeff * amount);
}
protected void doMoveAirspaceVertically(
WorldWindow wwd, Airspace airspace, Point mousePoint, Point previousMousePoint) {
// Find the closest points between the rays through each screen point, and the ray from the
// control point
// and in the direction of the globe's surface normal. Compute the elevation difference between
// these two
// points, and use that as the change in airspace altitude.
//
// If the state keepControlPointsAboveTerrain is set, we prevent the control point from passing
// any lower than
// the terrain elevation beneath it.
if (!(airspace instanceof Movable)) {
return;
}
Movable movable = (Movable) airspace;
Position referencePos = movable.getReferencePosition();
if (referencePos == null) return;
Vec4 referencePoint = wwd.getModel().getGlobe().computePointFromPosition(referencePos);
Vec4 surfaceNormal =
wwd.getModel()
.getGlobe()
.computeSurfaceNormalAtLocation(
referencePos.getLatitude(), referencePos.getLongitude());
Line verticalRay = new Line(referencePoint, surfaceNormal);
Line screenRay =
wwd.getView()
.computeRayFromScreenPoint(previousMousePoint.getX(), previousMousePoint.getY());
Line previousScreenRay =
wwd.getView().computeRayFromScreenPoint(mousePoint.getX(), mousePoint.getY());
Vec4 pointOnLine = AirspaceEditorUtil.nearestPointOnLine(verticalRay, screenRay);
Vec4 previousPointOnLine =
AirspaceEditorUtil.nearestPointOnLine(verticalRay, previousScreenRay);
Position pos = wwd.getModel().getGlobe().computePositionFromPoint(pointOnLine);
Position previousPos = wwd.getModel().getGlobe().computePositionFromPoint(previousPointOnLine);
double elevationChange = previousPos.getElevation() - pos.getElevation();
double[] altitudes = this.getAirspace().getAltitudes();
boolean[] terrainConformance = this.getAirspace().isTerrainConforming();
if (this.isKeepControlPointsAboveTerrain()) {
if (terrainConformance[LOWER_ALTITUDE]) {
if (altitudes[LOWER_ALTITUDE] + elevationChange < 0.0)
elevationChange = 0.0 - altitudes[LOWER_ALTITUDE];
} else {
double height =
AirspaceEditorUtil.computeLowestHeightAboveSurface(
wwd, this.getCurrentControlPoints(), LOWER_ALTITUDE);
if (elevationChange <= -height) {
elevationChange = -height;
}
}
}
altitudes[LOWER_ALTITUDE] += elevationChange;
altitudes[UPPER_ALTITUDE] += elevationChange;
this.getAirspace().setAltitudes(altitudes[LOWER_ALTITUDE], altitudes[UPPER_ALTITUDE]);
this.fireAirspaceMoved(new AirspaceEditEvent(wwd, airspace, this));
}
protected void drawMany(DrawContext dc, Iterable<? extends WWIcon> icons, Layer layer) {
if (dc == null) {
String msg = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
if (dc.getVisibleSector() == null) return;
SectorGeometryList geos = dc.getSurfaceGeometry();
//noinspection RedundantIfStatement
if (geos == null) return;
if (icons == null) {
String msg = Logging.getMessage("nullValue.IconIterator");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
Iterator<? extends WWIcon> iterator = icons.iterator();
if (!iterator.hasNext()) return;
double horizon = dc.getView().getHorizonDistance();
while (iterator.hasNext()) {
WWIcon icon = iterator.next();
if (!isIconValid(icon, true)) {
// Record feedback data for this WWIcon if feedback is enabled.
if (icon != null) this.recordFeedback(dc, icon, null, null);
continue;
}
if (!icon.isVisible()) {
// Record feedback data for this WWIcon if feedback is enabled.
this.recordFeedback(dc, icon, null, null);
continue;
}
// Determine Cartesian position from the surface geometry if the icon is near the surface,
// otherwise draw it from the globe.
Position pos = icon.getPosition();
Vec4 iconPoint = null;
if (pos.getElevation() < dc.getGlobe().getMaxElevation()
&& !this.isAlwaysUseAbsoluteElevation()) {
iconPoint = dc.getSurfaceGeometry().getSurfacePoint(icon.getPosition());
}
if (iconPoint == null) {
Angle lat = pos.getLatitude();
Angle lon = pos.getLongitude();
double elevation = pos.getElevation();
if (!this.isAlwaysUseAbsoluteElevation()) elevation += dc.getGlobe().getElevation(lat, lon);
iconPoint = dc.getGlobe().computePointFromPosition(lat, lon, elevation);
}
double eyeDistance =
icon.isAlwaysOnTop() ? 0 : dc.getView().getEyePoint().distanceTo3(iconPoint);
// X-PATCH Marjan
// extracted skip conditions into an overrideable method
if (!meetsRenderCriteria(dc, icon, iconPoint, eyeDistance)) {
this.recordFeedback(dc, icon, iconPoint, null);
continue;
}
// X-END
// The icons aren't drawn here, but added to the ordered queue to be drawn back-to-front.
dc.addOrderedRenderable(new OrderedIcon(icon, iconPoint, layer, eyeDistance, horizon));
if (icon.isShowToolTip()) this.addToolTip(dc, icon, iconPoint);
}
}
/**
* Constructor for the class
*
* @param p A Position object to supply the latitude, longitude and elevation.
* @param alt The eye point vertical position to save.
*/
public PositionWithAltitude(Position p, double alt) {
super(p.getLatitude(), p.getLongitude(), p.getElevation());
altitude = alt;
}
protected void onMoveTo(
Position focalPosition,
ViewInputAttributes.DeviceAttributes deviceAttributes,
ViewInputAttributes.ActionAttributes actionAttribs) {
BasicFlyView view = (BasicFlyView) this.getView();
if (view == null) // include this test to ensure any derived implementation performs it
{
return;
}
// We're treating a speed parameter as smoothing here. A greater speed results in greater
// smoothing and
// slower response. Therefore the min speed used at lower altitudes ought to be *greater* than
// the max
// speed used at higher altitudes.
double smoothing = this.getScaleValueElevation(deviceAttributes, actionAttribs);
if (!actionAttribs.isEnableSmoothing()) smoothing = 0.0;
Vec4 currentLookAtPt = view.getCenterPoint();
if (currentLookAtPt == null) {
currentLookAtPt = view.getGlobe().computePointFromPosition(focalPosition);
}
Vec4 currentEyePt = view.getEyePoint();
double distanceToSurface = currentEyePt.distanceTo3(currentLookAtPt);
Vec4 lookDirection = currentEyePt.subtract3(currentLookAtPt).normalize3();
Vec4 newLookAtPt = view.getGlobe().computePointFromPosition(focalPosition);
Vec4 flyToPoint = newLookAtPt.add3(lookDirection.multiply3(distanceToSurface));
Position newPosition = view.getGlobe().computePositionFromPoint(flyToPoint);
ViewUtil.ViewState viewCoords = view.getViewState(newPosition, focalPosition);
this.stopAnimators();
this.gotoAnimControl.put(
VIEW_ANIM_HEADING,
new RotateToAngleAnimator(
view.getHeading(),
viewCoords.getHeading(),
smoothing,
ViewPropertyAccessor.createHeadingAccessor(view)));
this.gotoAnimControl.put(
VIEW_ANIM_PITCH,
new RotateToAngleAnimator(
view.getPitch(),
viewCoords.getPitch(),
smoothing,
ViewPropertyAccessor.createPitchAccessor(view)));
double elevation =
((FlyViewLimits) view.getViewPropertyLimits())
.limitEyeElevation(newPosition, view.getGlobe());
if (elevation != newPosition.getElevation()) {
newPosition = new Position(newPosition, elevation);
}
this.gotoAnimControl.put(
VIEW_ANIM_POSITION,
new MoveToPositionAnimator(
view.getEyePosition(),
newPosition,
smoothing,
ViewPropertyAccessor.createEyePositionAccessor(view)));
view.firePropertyChange(AVKey.VIEW, null, view);
}