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 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 int determineAdjustmentSide(Movable dragObject, double factor) {
if (dragObject instanceof SurfaceSector) {
SurfaceSector quad = (SurfaceSector) dragObject;
Sector s = quad.getSector(); // TODO: go over all sectors
Position p = this.getWwd().getCurrentPosition();
if (p == null) {
return NONE;
}
double dN = abs(s.getMaxLatitude().subtract(p.getLatitude()).degrees);
double dS = abs(s.getMinLatitude().subtract(p.getLatitude()).degrees);
double dW = abs(s.getMinLongitude().subtract(p.getLongitude()).degrees);
double dE = abs(s.getMaxLongitude().subtract(p.getLongitude()).degrees);
double sLat = factor * s.getDeltaLatDegrees();
double sLon = factor * s.getDeltaLonDegrees();
if (dN < sLat && dW < sLon) return NORTHWEST;
if (dN < sLat && dE < sLon) return NORTHEAST;
if (dS < sLat && dW < sLon) return SOUTHWEST;
if (dS < sLat && dE < sLon) return SOUTHEAST;
if (dN < sLat) return NORTH;
if (dS < sLat) return SOUTH;
if (dW < sLon) return WEST;
if (dE < sLon) return EAST;
}
return NONE;
}
private void fillPointsPanel() {
int i = 0;
for (Position pos : lineBuilder.getLine().getPositions()) {
if (i == this.pointLabels.length) break;
String las = String.format("Lat %7.4f\u00B0", pos.getLatitude().getDegrees());
String los = String.format("Lon %7.4f\u00B0", pos.getLongitude().getDegrees());
pointLabels[i++].setText(las + " " + los);
}
for (; i < this.pointLabels.length; i++) pointLabels[i++].setText("");
}
public void computeZone(DrawContext dc) {
try {
Position centerPos = ((OrbitView) dc.getView()).getCenterPosition();
if (centerPos != null) {
if (centerPos.latitude.degrees <= UTM_MAX_LATITUDE
&& centerPos.latitude.degrees >= UTM_MIN_LATITUDE) {
UTMCoord UTM =
UTMCoord.fromLatLon(
centerPos.getLatitude(), centerPos.getLongitude(), dc.getGlobe());
this.zone = UTM.getZone();
} else this.zone = 0;
}
} catch (Exception ex) {
this.zone = 0;
}
}
protected Sector resizeShape(Movable dragObject, int side) {
if (dragObject instanceof SurfaceSector) {
SurfaceSector quad = (SurfaceSector) dragObject;
Sector s = quad.getSector(); // TODO: go over all sectors
Position p = this.getWwd().getCurrentPosition();
if (p == null || this.getPreviousPosition() == null) {
return null;
}
Angle dLat = p.getLatitude().subtract(this.getPreviousPosition().getLatitude());
Angle dLon = p.getLongitude().subtract(this.getPreviousPosition().getLongitude());
Angle newMinLat = s.getMinLatitude();
Angle newMinLon = s.getMinLongitude();
Angle newMaxLat = s.getMaxLatitude();
Angle newMaxLon = s.getMaxLongitude();
if (side == NORTH) {
newMaxLat = s.getMaxLatitude().add(dLat);
} else if (side == SOUTH) {
newMinLat = s.getMinLatitude().add(dLat);
} else if (side == EAST) {
newMaxLon = s.getMaxLongitude().add(dLon);
} else if (side == WEST) {
newMinLon = s.getMinLongitude().add(dLon);
} else if (side == NORTHWEST) {
newMaxLat = s.getMaxLatitude().add(dLat);
newMinLon = s.getMinLongitude().add(dLon);
} else if (side == NORTHEAST) {
newMaxLat = s.getMaxLatitude().add(dLat);
newMaxLon = s.getMaxLongitude().add(dLon);
} else if (side == SOUTHWEST) {
newMinLat = s.getMinLatitude().add(dLat);
newMinLon = s.getMinLongitude().add(dLon);
} else if (side == SOUTHEAST) {
newMinLat = s.getMinLatitude().add(dLat);
newMaxLon = s.getMaxLongitude().add(dLon);
}
return new Sector(newMinLat, newMaxLat, newMinLon, newMaxLon);
}
return null;
}
public void selectRenderables(DrawContext dc) {
try {
OrbitView view = (OrbitView) dc.getView();
// Compute easting and northing label offsets
Double pixelSize = view.computePixelSizeAtDistance(view.getZoom());
Double eastingOffset = view.getViewport().width * pixelSize * offsetFactorX / 2;
Double northingOffset = view.getViewport().height * pixelSize * offsetFactorY / 2;
// Derive labels center pos from the view center
Position centerPos = view.getCenterPosition();
double labelEasting;
double labelNorthing;
String labelHemisphere;
if (this.zone > 0) {
UTMCoord UTM =
UTMCoord.fromLatLon(centerPos.getLatitude(), centerPos.getLongitude(), dc.getGlobe());
labelEasting = UTM.getEasting() + eastingOffset;
labelNorthing = UTM.getNorthing() + northingOffset;
labelHemisphere = UTM.getHemisphere();
if (labelNorthing < 0) {
labelNorthing = 10e6 + labelNorthing;
labelHemisphere = AVKey.SOUTH;
}
} else {
UPSCoord UPS =
UPSCoord.fromLatLon(centerPos.getLatitude(), centerPos.getLongitude(), dc.getGlobe());
labelEasting = UPS.getEasting() + eastingOffset;
labelNorthing = UPS.getNorthing() + northingOffset;
labelHemisphere = UPS.getHemisphere();
}
Position labelPos;
for (int i = 0; i < this.extremes.length; i++) {
UTMExtremes levelExtremes = this.extremes[i];
double gridStep = Math.pow(10, i);
double gridStepTimesTen = gridStep * 10;
String graticuleType = getTypeFor((int) gridStep);
if (levelExtremes.minX <= levelExtremes.maxX) {
// Process easting scale labels for this level
for (double easting = levelExtremes.minX;
easting <= levelExtremes.maxX;
easting += gridStep) {
// Skip multiples of ten grid steps except for last (higher) level
if (i == this.extremes.length - 1 || easting % gridStepTimesTen != 0) {
try {
labelPos = computePosition(this.zone, labelHemisphere, easting, labelNorthing);
if (labelPos == null) continue;
Angle lat = labelPos.getLatitude();
Angle lon = labelPos.getLongitude();
Vec4 surfacePoint = getSurfacePoint(dc, lat, lon);
if (viewFrustum.contains(surfacePoint) && isPointInRange(dc, surfacePoint)) {
String text = String.valueOf((int) (easting % this.scaleModulo));
GeographicText gt = new UserFacingText(text, new Position(lat, lon, 0));
gt.setPriority(gridStepTimesTen);
addRenderable(gt, graticuleType);
}
} catch (IllegalArgumentException ignore) {
}
}
}
}
if (!(levelExtremes.maxYHemisphere.equals(AVKey.SOUTH) && levelExtremes.maxY == 0)) {
// Process northing scale labels for this level
String currentHemisphere = levelExtremes.minYHemisphere;
for (double northing = levelExtremes.minY;
(northing <= levelExtremes.maxY)
|| !currentHemisphere.equals(levelExtremes.maxYHemisphere);
northing += gridStep) {
// Skip multiples of ten grid steps except for last (higher) level
if (i == this.extremes.length - 1 || northing % gridStepTimesTen != 0) {
try {
labelPos = computePosition(this.zone, currentHemisphere, labelEasting, northing);
if (labelPos == null) continue;
Angle lat = labelPos.getLatitude();
Angle lon = labelPos.getLongitude();
Vec4 surfacePoint = getSurfacePoint(dc, lat, lon);
if (viewFrustum.contains(surfacePoint) && isPointInRange(dc, surfacePoint)) {
String text = String.valueOf((int) (northing % this.scaleModulo));
GeographicText gt = new UserFacingText(text, new Position(lat, lon, 0));
gt.setPriority(gridStepTimesTen);
addRenderable(gt, graticuleType);
}
} catch (IllegalArgumentException ignore) {
}
if (!currentHemisphere.equals(levelExtremes.maxYHemisphere)
&& northing >= 10e6 - gridStep) {
// Switch hemisphere
currentHemisphere = levelExtremes.maxYHemisphere;
northing = -gridStep;
}
}
}
} // end northing
} // for levels
} catch (IllegalArgumentException ignore) {
}
}
/** Create the graticule grid elements */
private void createUTMRenderables() {
this.gridElements = new ArrayList<GridElement>();
ArrayList<Position> positions = new ArrayList<Position>();
// Generate meridians and zone labels
int lon = -180;
int zoneNumber = 1;
int maxLat;
for (int i = 0; i < 60; i++) {
Angle longitude = Angle.fromDegrees(lon);
// Meridian
positions.clear();
positions.add(new Position(Angle.fromDegrees(-80), longitude, 10e3));
positions.add(new Position(Angle.fromDegrees(-60), longitude, 10e3));
positions.add(new Position(Angle.fromDegrees(-30), longitude, 10e3));
positions.add(new Position(Angle.ZERO, longitude, 10e3));
positions.add(new Position(Angle.fromDegrees(30), longitude, 10e3));
if (lon < 6 || lon > 36) {
// 'regular' UTM meridians
maxLat = 84;
positions.add(new Position(Angle.fromDegrees(60), longitude, 10e3));
positions.add(new Position(Angle.fromDegrees(maxLat), longitude, 10e3));
} else {
// Exceptions: shorter meridians around and north-east of Norway
if (lon == 6) {
maxLat = 56;
positions.add(new Position(Angle.fromDegrees(maxLat), longitude, 10e3));
} else {
maxLat = 72;
positions.add(new Position(Angle.fromDegrees(60), longitude, 10e3));
positions.add(new Position(Angle.fromDegrees(maxLat), longitude, 10e3));
}
}
Object polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
Sector sector = Sector.fromDegrees(-80, maxLat, lon, lon);
this.gridElements.add(new GridElement(sector, polyline, GridElement.TYPE_LINE));
// Zone label
GeographicText text =
new UserFacingText(zoneNumber + "", Position.fromDegrees(0, lon + 3, 0));
sector = Sector.fromDegrees(-90, 90, lon + 3, lon + 3);
this.gridElements.add(new GridElement(sector, text, GridElement.TYPE_LONGITUDE_LABEL));
// Increase longitude and zone number
lon += 6;
zoneNumber++;
}
// Generate special meridian segments for exceptions around and north-east of Norway
for (int i = 0; i < 5; i++) {
positions.clear();
lon = specialMeridians[i][0];
positions.add(
new Position(Angle.fromDegrees(specialMeridians[i][1]), Angle.fromDegrees(lon), 10e3));
positions.add(
new Position(Angle.fromDegrees(specialMeridians[i][2]), Angle.fromDegrees(lon), 10e3));
Object polyline = createLineRenderable(positions, Polyline.GREAT_CIRCLE);
Sector sector = Sector.fromDegrees(specialMeridians[i][1], specialMeridians[i][2], lon, lon);
this.gridElements.add(new GridElement(sector, polyline, GridElement.TYPE_LINE));
}
// Generate parallels - no exceptions
int lat = -80;
for (int i = 0; i < 21; i++) {
Angle latitude = Angle.fromDegrees(lat);
for (int j = 0; j < 4; j++) {
// Each prallel is divided into four 90 degrees segments
positions.clear();
lon = -180 + j * 90;
positions.add(new Position(latitude, Angle.fromDegrees(lon), 10e3));
positions.add(new Position(latitude, Angle.fromDegrees(lon + 30), 10e3));
positions.add(new Position(latitude, Angle.fromDegrees(lon + 60), 10e3));
positions.add(new Position(latitude, Angle.fromDegrees(lon + 90), 10e3));
Object polyline = createLineRenderable(positions, Polyline.LINEAR);
Sector sector = Sector.fromDegrees(lat, lat, lon, lon + 90);
this.gridElements.add(new GridElement(sector, polyline, GridElement.TYPE_LINE));
}
// Latitude band label
if (i < 20) {
GeographicText text =
new UserFacingText(latBands.charAt(i) + "", Position.fromDegrees(lat + 4, 0, 0));
Sector sector = Sector.fromDegrees(lat + 4, lat + 4, -180, 180);
this.gridElements.add(new GridElement(sector, text, GridElement.TYPE_LATITUDE_LABEL));
}
// Increase latitude
lat += lat < 72 ? 8 : 12;
}
}
/**
* 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);
}
}
public AppFrame() {
super(true, true, false);
// Add detail hint slider panel
this.getLayerPanel().add(makeDetailHintControlPanel(), BorderLayout.SOUTH);
RenderableLayer layer = new RenderableLayer();
// Create and set an attribute bundle.
ShapeAttributes attrs = new BasicShapeAttributes();
attrs.setInteriorMaterial(Material.YELLOW);
attrs.setInteriorOpacity(0.7);
attrs.setEnableLighting(true);
attrs.setOutlineMaterial(Material.RED);
attrs.setOutlineWidth(2d);
attrs.setDrawInterior(true);
attrs.setDrawOutline(false);
// Create and set an attribute bundle.
ShapeAttributes attrs2 = new BasicShapeAttributes();
attrs2.setInteriorMaterial(Material.PINK);
attrs2.setInteriorOpacity(1);
attrs2.setEnableLighting(true);
attrs2.setOutlineMaterial(Material.WHITE);
attrs2.setOutlineWidth(2d);
attrs2.setDrawOutline(false);
// ********* sample Wedges *******************
// Wedge with equal axes, ABSOLUTE altitude mode
Wedge wedge3 =
new Wedge(Position.fromDegrees(40, -120, 80000), Angle.POS90, 50000, 50000, 50000);
wedge3.setAltitudeMode(WorldWind.ABSOLUTE);
wedge3.setAttributes(attrs);
wedge3.setVisible(true);
wedge3.setValue(AVKey.DISPLAY_NAME, "Wedge with equal axes, ABSOLUTE altitude mode");
layer.addRenderable(wedge3);
// Wedge with equal axes, RELATIVE_TO_GROUND
Wedge wedge4 =
new Wedge(Position.fromDegrees(37.5, -115, 50000), Angle.POS90, 50000, 50000, 50000);
wedge4.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
wedge4.setAttributes(attrs);
wedge4.setVisible(true);
wedge4.setValue(
AVKey.DISPLAY_NAME, "Wedge with equal axes, RELATIVE_TO_GROUND altitude mode");
layer.addRenderable(wedge4);
// Wedge with equal axes, CLAMP_TO_GROUND
Wedge wedge5 =
new Wedge(Position.fromDegrees(35, -110, 50000), Angle.POS90, 50000, 50000, 50000);
wedge5.setAltitudeMode(WorldWind.CLAMP_TO_GROUND);
wedge5.setAttributes(attrs);
wedge5.setVisible(true);
wedge5.setValue(AVKey.DISPLAY_NAME, "Wedge with equal axes, CLAMP_TO_GROUND altitude mode");
layer.addRenderable(wedge5);
// Wedge with a texture, using Wedge(position, angle, height, radius) constructor
Wedge wedge9 =
new Wedge(Position.fromDegrees(0, -90, 600000), Angle.fromDegrees(225), 1200000, 600000);
wedge9.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
wedge9.setImageSources("gov/nasa/worldwindx/examples/images/500px-Checkerboard_pattern.png");
wedge9.setAttributes(attrs);
wedge9.setVisible(true);
wedge9.setValue(AVKey.DISPLAY_NAME, "Wedge with a texture");
layer.addRenderable(wedge9);
// Scaled Wedge with default orientation
Wedge wedge = new Wedge(Position.ZERO, Angle.fromDegrees(125), 500000, 500000, 500000);
wedge.setAltitudeMode(WorldWind.ABSOLUTE);
wedge.setAttributes(attrs);
wedge.setVisible(true);
wedge.setValue(AVKey.DISPLAY_NAME, "Scaled Wedge with default orientation");
layer.addRenderable(wedge);
// Scaled Wedge with a pre-set orientation
Wedge wedge2 =
new Wedge(
Position.fromDegrees(0, 30, 750000),
Angle.POS90,
500000,
500000,
500000,
Angle.fromDegrees(90),
Angle.fromDegrees(45),
Angle.fromDegrees(30));
wedge2.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
wedge2.setAttributes(attrs2);
wedge2.setVisible(true);
wedge2.setValue(AVKey.DISPLAY_NAME, "Scaled Wedge with a pre-set orientation");
layer.addRenderable(wedge2);
// Scaled Wedge with a pre-set orientation
Wedge wedge6 =
new Wedge(
Position.fromDegrees(30, 30, 750000),
Angle.POS90,
500000,
500000,
500000,
Angle.fromDegrees(90),
Angle.fromDegrees(45),
Angle.fromDegrees(30));
wedge6.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
wedge6.setImageSources("gov/nasa/worldwindx/examples/images/500px-Checkerboard_pattern.png");
wedge6.setAttributes(attrs2);
wedge6.setVisible(true);
wedge6.setValue(AVKey.DISPLAY_NAME, "Scaled Wedge with a pre-set orientation");
layer.addRenderable(wedge6);
// Scaled Wedge with a pre-set orientation
Wedge wedge7 =
new Wedge(
Position.fromDegrees(60, 30, 750000),
Angle.POS90,
500000,
500000,
500000,
Angle.fromDegrees(90),
Angle.fromDegrees(45),
Angle.fromDegrees(30));
wedge7.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
wedge7.setAttributes(attrs2);
wedge7.setVisible(true);
wedge7.setValue(AVKey.DISPLAY_NAME, "Scaled Wedge with a pre-set orientation");
layer.addRenderable(wedge7);
// Scaled, oriented Wedge in 3rd "quadrant" (-X, -Y, -Z)
Wedge wedge8 =
new Wedge(
Position.fromDegrees(-45, -180, 750000),
Angle.POS90,
500000,
1000000,
500000,
Angle.fromDegrees(90),
Angle.fromDegrees(45),
Angle.fromDegrees(30));
wedge8.setAltitudeMode(WorldWind.RELATIVE_TO_GROUND);
wedge8.setAttributes(attrs2);
wedge8.setVisible(true);
wedge8.setValue(
AVKey.DISPLAY_NAME, "Scaled, oriented Wedge with in the 3rd 'quadrant' (-X, -Y, -Z)");
layer.addRenderable(wedge8);
// Add the layer to the model.
insertBeforeCompass(getWwd(), layer);
// Update layer panel
this.getLayerPanel().update(this.getWwd());
}