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 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 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 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);
}
/**
* 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;
}
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);
}
}