public int countImagesInSector(Sector sector, int levelNumber) {
if (sector == null) {
String msg = Logging.getMessage("nullValue.SectorIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
Level targetLevel = this.levels.getLastLevel();
if (levelNumber >= 0) {
for (int i = levelNumber; i < this.getLevels().getLastLevel().getLevelNumber(); i++) {
if (this.levels.isLevelEmpty(i)) continue;
targetLevel = this.levels.getLevel(i);
break;
}
}
// Collect all the tiles intersecting the input sector.
LatLon delta = targetLevel.getTileDelta();
Angle latOrigin = this.levels.getTileOrigin().getLatitude();
Angle lonOrigin = this.levels.getTileOrigin().getLongitude();
final int nwRow = Tile.computeRow(delta.getLatitude(), sector.getMaxLatitude(), latOrigin);
final int nwCol = Tile.computeColumn(delta.getLongitude(), sector.getMinLongitude(), lonOrigin);
final int seRow = Tile.computeRow(delta.getLatitude(), sector.getMinLatitude(), latOrigin);
final int seCol = Tile.computeColumn(delta.getLongitude(), sector.getMaxLongitude(), lonOrigin);
int numRows = nwRow - seRow + 1;
int numCols = seCol - nwCol + 1;
return numRows * numCols;
}
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());
}
private void drawTileIDs(DrawContext dc, ArrayList<MercatorTextureTile> tiles) {
java.awt.Rectangle viewport = dc.getView().getViewport();
if (this.textRenderer == null) {
this.textRenderer = new TextRenderer(java.awt.Font.decode("Arial-Plain-13"), true, true);
this.textRenderer.setUseVertexArrays(false);
}
dc.getGL().glDisable(GL.GL_DEPTH_TEST);
dc.getGL().glDisable(GL.GL_BLEND);
dc.getGL().glDisable(GL.GL_TEXTURE_2D);
this.textRenderer.setColor(java.awt.Color.YELLOW);
this.textRenderer.beginRendering(viewport.width, viewport.height);
for (MercatorTextureTile tile : tiles) {
String tileLabel = tile.getLabel();
if (tile.getFallbackTile() != null) tileLabel += "/" + tile.getFallbackTile().getLabel();
LatLon ll = tile.getSector().getCentroid();
Vec4 pt =
dc.getGlobe()
.computePointFromPosition(
ll.getLatitude(),
ll.getLongitude(),
dc.getGlobe().getElevation(ll.getLatitude(), ll.getLongitude()));
pt = dc.getView().project(pt);
this.textRenderer.draw(tileLabel, (int) pt.x, (int) pt.y);
}
this.textRenderer.endRendering();
}
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 assembleVertexControlPoints(DrawContext dc) {
Terrain terrain = dc.getTerrain();
ExtrudedPolygon polygon = this.getPolygon();
Position refPos = polygon.getReferencePosition();
Vec4 refPoint = terrain.getSurfacePoint(refPos.getLatitude(), refPos.getLongitude(), 0);
int altitudeMode = polygon.getAltitudeMode();
double height = polygon.getHeight();
Vec4 vaa = null;
double vaaLength = 0; // used to compute independent length of each cap vertex
double vaLength = 0;
int i = 0;
for (LatLon location : polygon.getOuterBoundary()) {
Vec4 vert;
// Compute the top/cap point.
if (altitudeMode == WorldWind.CONSTANT || !(location instanceof Position)) {
if (vaa == null) {
// Compute the vector lengths of the top and bottom points at the reference position.
vaa = refPoint.multiply3(height / refPoint.getLength3());
vaaLength = vaa.getLength3();
vaLength = refPoint.getLength3();
}
// Compute the bottom point, which is on the terrain.
vert = terrain.getSurfacePoint(location.getLatitude(), location.getLongitude(), 0);
double delta = vaLength - vert.dot3(refPoint) / vaLength;
vert = vert.add3(vaa.multiply3(1d + delta / vaaLength));
} else if (altitudeMode == WorldWind.RELATIVE_TO_GROUND) {
vert =
terrain.getSurfacePoint(
location.getLatitude(),
location.getLongitude(),
((Position) location).getAltitude());
} else // WorldWind.ABSOLUTE
{
vert =
terrain
.getGlobe()
.computePointFromPosition(
location.getLatitude(),
location.getLongitude(),
((Position) location).getAltitude() * terrain.getVerticalExaggeration());
}
Position vertexPosition = this.wwd.getModel().getGlobe().computePositionFromPoint(vert);
this.controlPoints.add(
new ControlPointMarker(
MOVE_VERTEX_ACTION, vertexPosition, vert, this.vertexControlAttributes, i));
i++;
}
}
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));
}
public void printInfo(boolean printCoordinates) {
System.out.printf(
"%d, %s: %d parts, %d points",
this.getRecordNumber(),
this.getShapeType(),
this.getNumberOfParts(),
this.getNumberOfPoints());
for (Map.Entry<String, Object> a : this.getAttributes().getEntries()) {
if (a.getKey() != null) System.out.printf(", %s", a.getKey());
if (a.getValue() != null) System.out.printf(", %s", a.getValue());
}
System.out.println();
System.out.print("\tAttributes: ");
for (Map.Entry<String, Object> entry : this.getAttributes().getEntries()) {
System.out.printf("%s = %s, ", entry.getKey(), entry.getValue());
}
System.out.println();
if (!printCoordinates) return;
VecBuffer vb = this.getPointBuffer(0);
for (LatLon ll : vb.getLocations()) {
System.out.printf("\t%f, %f\n", ll.getLatitude().degrees, ll.getLongitude().degrees);
}
}
public void doActionOnButton3() {
// Sector sector = Sector.fromDegrees( 44d, 46d, -123.3d, -123.2d );
ArrayList<LatLon> latlons = new ArrayList<LatLon>();
latlons.add(LatLon.fromDegrees(45.50d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.51d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.52d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.53d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.54d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.55d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.56d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.57d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.58d, -123.3d));
// latlons.add( LatLon.fromDegrees( 45.59d, -123.3d ) );
latlons.add(LatLon.fromDegrees(45.60d, -123.3d));
ElevationModel model = this.wwd.getModel().getGlobe().getElevationModel();
StringBuffer sb = new StringBuffer();
for (LatLon ll : latlons) {
double e = model.getElevation(ll.getLatitude(), ll.getLongitude());
sb.append("\n").append(e);
}
Logging.logger().info(sb.toString());
}
public void flyToLatLon(LatLon latlon, double zoom) {
Globe globe = canvas.getModel().getGlobe();
Position position =
new Position(latlon, globe.getElevation(latlon.getLatitude(), latlon.getLongitude()));
flyToPosition(position, zoom);
}
/**
* Sets the vector element at the specified position, as a geographic LatLon. This buffer's
* logical vector size must be at least 2.
*
* @param position the logical vector position.
* @param ll the geographic location to set.
* @throws IllegalArgumentException if the position is out of range, if the LatLon is null, or if
* this buffer cannot store a LatLon.
*/
public void putLocation(int position, LatLon ll) {
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 (ll == null) {
String message = Logging.getMessage("nullValue.LatLonIsNull");
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[2];
compArray[1] = ll.getLatitude().degrees;
compArray[0] = ll.getLongitude().degrees;
this.put(position, compArray);
}
protected double computeLocationDistanceDegreesSquared(Sector drawSector, LatLon location) {
double lonOffset = computeHemisphereOffset(drawSector, location);
double dLat = location.getLatitude().degrees - drawSector.getCentroid().getLatitude().degrees;
double dLon =
location.getLongitude().degrees
- drawSector.getCentroid().getLongitude().degrees
+ lonOffset;
return dLat * dLat + dLon * dLon;
}
private MercatorTextureTile[][] getTilesInSector(Sector sector, int levelNumber) {
if (sector == null) {
String msg = Logging.getMessage("nullValue.SectorIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
Level targetLevel = this.levels.getLastLevel();
if (levelNumber >= 0) {
for (int i = levelNumber; i < this.getLevels().getLastLevel().getLevelNumber(); i++) {
if (this.levels.isLevelEmpty(i)) continue;
targetLevel = this.levels.getLevel(i);
break;
}
}
// Collect all the tiles intersecting the input sector.
LatLon delta = targetLevel.getTileDelta();
Angle latOrigin = this.levels.getTileOrigin().getLatitude();
Angle lonOrigin = this.levels.getTileOrigin().getLongitude();
final int nwRow = Tile.computeRow(delta.getLatitude(), sector.getMaxLatitude(), latOrigin);
final int nwCol = Tile.computeColumn(delta.getLongitude(), sector.getMinLongitude(), lonOrigin);
final int seRow = Tile.computeRow(delta.getLatitude(), sector.getMinLatitude(), latOrigin);
final int seCol = Tile.computeColumn(delta.getLongitude(), sector.getMaxLongitude(), lonOrigin);
int numRows = nwRow - seRow + 1;
int numCols = seCol - nwCol + 1;
MercatorTextureTile[][] sectorTiles = new MercatorTextureTile[numRows][numCols];
for (int row = nwRow; row >= seRow; row--) {
for (int col = nwCol; col <= seCol; col++) {
TileKey key =
new TileKey(targetLevel.getLevelNumber(), row, col, targetLevel.getCacheName());
Sector tileSector = this.levels.computeSectorForKey(key);
MercatorSector mSector = MercatorSector.fromSector(tileSector); // TODO: check
sectorTiles[nwRow - row][col - nwCol] =
new MercatorTextureTile(mSector, targetLevel, row, col);
}
}
return sectorTiles;
}
/**
* Format angles of latitude and longitude according to the current angle format.
*
* <p>The values are formatted using the current {@link #LABEL_LATLON_LAT}, {@link
* #LABEL_LATLON_LON} and angle format.
*
* @param latlon the angles to format.
* @return a string containing the formatted angles.
* @throws IllegalArgumentException if <code>latlon</code> is null.
*/
public String latLon(LatLon latlon) {
if (latlon == null) {
String msg = Logging.getMessage("nullValue.LatLonIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
return String.format(
"%s %s",
this.angle(this.getLabel(LABEL_LATLON_LAT), latlon.getLatitude()),
this.angle(this.getLabel(LABEL_LATLON_LON), latlon.getLongitude()))
.trim();
}
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));
}
public void exportAsXML(XMLStreamWriter xmlWriter) throws IOException, XMLStreamException {
if (xmlWriter == null) {
String message = Logging.getMessage("Export.UnsupportedOutputObject");
Logging.logger().warning(message);
throw new IllegalArgumentException(message);
}
xmlWriter.writeStartElement("Record");
xmlWriter.writeAttribute("id", Integer.toString(this.getRecordNumber()));
xmlWriter.writeAttribute(
"shape", this.getShapeType().substring(this.getShapeType().lastIndexOf("Shape") + 5));
xmlWriter.writeAttribute("parts", Integer.toString(this.getNumberOfParts()));
xmlWriter.writeAttribute("points", Integer.toString(this.getNumberOfPoints()));
xmlWriter.writeCharacters("\n");
for (Map.Entry<String, Object> a : this.getAttributes().getEntries()) {
xmlWriter.writeStartElement("Attribute");
xmlWriter.writeAttribute("name", a.getKey() != null ? a.getKey().toString() : "");
xmlWriter.writeAttribute("value", a.getValue() != null ? a.getValue().toString() : "");
xmlWriter.writeEndElement(); // Attribute
xmlWriter.writeCharacters("\n");
}
if (this.getNumberOfParts() > 0) {
VecBuffer vb = this.getPointBuffer(0);
for (LatLon ll : vb.getLocations()) {
xmlWriter.writeStartElement("Point");
xmlWriter.writeAttribute("x", Double.toString(ll.getLatitude().degrees));
xmlWriter.writeAttribute("y", Double.toString(ll.getLongitude().degrees));
xmlWriter.writeEndElement(); // Point
xmlWriter.writeCharacters("\n");
}
}
// TODO: export record-type specific fields
xmlWriter.writeEndElement(); // Record
}
protected void initializePolygon(WorldWindow wwd, Polygon polygon, boolean fitShapeToViewport) {
// Creates a rectangle in the center of the viewport. Attempts to guess at a reasonable size
// and height.
Position position = ShapeUtils.getNewShapePosition(wwd);
Angle heading = ShapeUtils.getNewShapeHeading(wwd, true);
double sizeInMeters =
fitShapeToViewport ? ShapeUtils.getViewportScaleFactor(wwd) : DEFAULT_SHAPE_SIZE_METERS;
java.util.List<LatLon> locations =
ShapeUtils.createSquareInViewport(wwd, position, heading, sizeInMeters);
double maxElevation = -Double.MAX_VALUE;
Globe globe = wwd.getModel().getGlobe();
for (LatLon ll : locations) {
double e = globe.getElevation(ll.getLatitude(), ll.getLongitude());
if (e > maxElevation) maxElevation = e;
}
polygon.setAltitudes(0.0, maxElevation + sizeInMeters);
polygon.setTerrainConforming(true, false);
polygon.setLocations(locations);
}
protected boolean isPathCrossingAPole(LatLon p1, LatLon p2) {
return Math.abs(p1.getLongitude().degrees - p2.getLongitude().degrees) > 20
&& Math.abs(p1.getLatitude().degrees - 90 * Math.signum(p1.getLatitude().degrees)) < 10;
}
/**
* Subdivide a list of positions so that no segment is longer then the provided maxLength. Only
* the positions between start and start + count - 1 will be processed.
*
* <p>If needed, new intermediate positions will be created along lines that follow the given
* pathType - one of Polyline.LINEAR, Polyline.RHUMB_LINE or Polyline.GREAT_CIRCLE. All position
* elevations will be either at the terrain surface if followTerrain is true, or interpolated
* according to the original elevations.
*
* @param globe the globe to draw elevations and points from.
* @param positions the original position list
* @param maxLength the maximum length for one segment.
* @param followTerrain true if the positions should be on the terrain surface.
* @param pathType the type of path to use in between two positions.
* @param start the first position indice in the original list.
* @param count how many positions from the original list have to be processed and returned.
* @return a list of positions with no segment longer then maxLength and elevations following
* terrain or not.
*/
protected static ArrayList<? extends Position> subdividePositions(
Globe globe,
ArrayList<? extends Position> positions,
double maxLength,
boolean followTerrain,
String pathType,
int start,
int count) {
if (positions == null || positions.size() < start + count) return positions;
ArrayList<Position> newPositions = new ArrayList<Position>();
// Add first position
Position pos1 = positions.get(start);
if (followTerrain)
newPositions.add(
new Position(pos1, globe.getElevation(pos1.getLatitude(), pos1.getLongitude())));
else newPositions.add(pos1);
for (int i = 1; i < count; i++) {
Position pos2 = positions.get(start + i);
double arcLengthRadians = LatLon.greatCircleDistance(pos1, pos2).radians;
double arcLength = arcLengthRadians * globe.getRadiusAt(LatLon.interpolate(.5, pos1, pos2));
if (arcLength > maxLength) {
// if necessary subdivide segment at regular intervals smaller then maxLength
Angle segmentAzimuth = null;
Angle segmentDistance = null;
int steps = (int) Math.ceil(arcLength / maxLength); // number of intervals - at least two
for (int j = 1; j < steps; j++) {
float s = (float) j / steps;
LatLon destLatLon;
if (pathType.equals(AVKey.LINEAR)) {
destLatLon = LatLon.interpolate(s, pos1, pos2);
} else if (pathType.equals(AVKey.RHUMB_LINE)) {
if (segmentAzimuth == null) {
segmentAzimuth = LatLon.rhumbAzimuth(pos1, pos2);
segmentDistance = LatLon.rhumbDistance(pos1, pos2);
}
destLatLon =
LatLon.rhumbEndPosition(pos1, segmentAzimuth.radians, s * segmentDistance.radians);
} else // GREAT_CIRCLE
{
if (segmentAzimuth == null) {
segmentAzimuth = LatLon.greatCircleAzimuth(pos1, pos2);
segmentDistance = LatLon.greatCircleDistance(pos1, pos2);
}
destLatLon =
LatLon.greatCircleEndPosition(
pos1, segmentAzimuth.radians, s * segmentDistance.radians);
}
// Set elevation
double elevation;
if (followTerrain)
elevation = globe.getElevation(destLatLon.getLatitude(), destLatLon.getLongitude());
else elevation = pos1.elevation * (1 - s) + pos2.elevation * s;
// Add new position
newPositions.add(new Position(destLatLon, elevation));
}
}
// Finally add the segment end position
if (followTerrain)
newPositions.add(
new Position(pos2, globe.getElevation(pos2.getLatitude(), pos2.getLongitude())));
else newPositions.add(pos2);
// Prepare for next segment
pos1 = pos2;
}
return newPositions;
}
protected void drawIcon(DrawContext dc) {
if (this.getIconFilePath() == null) return;
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
// Initialize texture if necessary
Texture iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture == null) {
this.initializeTexture(dc);
iconTexture = dc.getTextureCache().getTexture(this.getIconFilePath());
if (iconTexture == null) {
String msg = Logging.getMessage("generic.ImageReadFailed");
Logging.logger().finer(msg);
return;
}
}
gl.glDisable(GL.GL_DEPTH_TEST);
double width = this.getScaledIconWidth();
double height = this.getScaledIconHeight();
// Load a parallel projection with xy dimensions (viewportWidth, viewportHeight)
// into the GL projection matrix.
java.awt.Rectangle viewport = dc.getView().getViewport();
ogsh.pushProjectionIdentity(gl);
double maxwh = width > height ? width : height;
gl.glOrtho(0d, viewport.width, 0d, viewport.height, -0.6 * maxwh, 0.6 * maxwh);
// Translate and scale
ogsh.pushModelviewIdentity(gl);
double scale = this.computeScale(viewport);
Vec4 locationSW = this.computeLocation(viewport, scale);
gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
// Scale to 0..1 space
gl.glScaled(scale, scale, 1);
gl.glScaled(width, height, 1d);
if (!dc.isPickingMode()) {
gl.glEnable(GL.GL_BLEND);
gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
// Draw background color behind the map
gl.glColor4ub(
(byte) this.backColor.getRed(),
(byte) this.backColor.getGreen(),
(byte) this.backColor.getBlue(),
(byte) (this.backColor.getAlpha() * this.getOpacity()));
dc.drawUnitQuad();
// Draw world map icon
gl.glColor4d(1d, 1d, 1d, this.getOpacity());
gl.glEnable(GL.GL_TEXTURE_2D);
iconTexture.bind();
TextureCoords texCoords = iconTexture.getImageTexCoords();
dc.drawUnitQuad(texCoords);
gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
gl.glDisable(GL.GL_TEXTURE_2D);
// Draw crosshair for current location
gl.glLoadIdentity();
gl.glTranslated(locationSW.x(), locationSW.y(), locationSW.z());
// Scale to width x height space
gl.glScaled(scale, scale, 1);
// Set color
float[] colorRGB = this.color.getRGBColorComponents(null);
gl.glColor4d(colorRGB[0], colorRGB[1], colorRGB[2], this.getOpacity());
// Draw crosshair
Position groundPos = this.computeGroundPosition(dc, dc.getView());
if (groundPos != null) {
int x = (int) (width * (groundPos.getLongitude().degrees + 180) / 360);
int y = (int) (height * (groundPos.getLatitude().degrees + 90) / 180);
int w = 10; // cross branch length
// Draw
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x - w, y, 0);
gl.glVertex3d(x + w + 1, y, 0);
gl.glEnd();
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x, y - w, 0);
gl.glVertex3d(x, y + w + 1, 0);
gl.glEnd();
}
// Draw view footprint in map icon space
if (this.showFootprint) {
this.footPrintPositions = this.computeViewFootPrint(dc, 32);
if (this.footPrintPositions != null) {
gl.glBegin(GL.GL_LINE_STRIP);
LatLon p1 = this.footPrintPositions.get(0);
for (LatLon p2 : this.footPrintPositions) {
int x = (int) (width * (p2.getLongitude().degrees + 180) / 360);
int y = (int) (height * (p2.getLatitude().degrees + 90) / 180);
// Draw
if (LatLon.locationsCrossDateline(p1, p2)) {
int y1 = (int) (height * (p1.getLatitude().degrees + 90) / 180);
gl.glVertex3d(x < width / 2 ? width : 0, (y1 + y) / 2, 0);
gl.glEnd();
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(x < width / 2 ? 0 : width, (y1 + y) / 2, 0);
}
gl.glVertex3d(x, y, 0);
p1 = p2;
}
gl.glEnd();
}
}
// Draw 1px border around and inside the map
gl.glBegin(GL.GL_LINE_STRIP);
gl.glVertex3d(0, 0, 0);
gl.glVertex3d(width, 0, 0);
gl.glVertex3d(width, height - 1, 0);
gl.glVertex3d(0, height - 1, 0);
gl.glVertex3d(0, 0, 0);
gl.glEnd();
} else {
// Picking
this.pickSupport.clearPickList();
this.pickSupport.beginPicking(dc);
// Where in the world are we picking ?
Position pickPosition =
computePickPosition(
dc, locationSW, new Dimension((int) (width * scale), (int) (height * scale)));
Color color = dc.getUniquePickColor();
int colorCode = color.getRGB();
this.pickSupport.addPickableObject(colorCode, this, pickPosition, false);
gl.glColor3ub((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue());
dc.drawUnitQuad();
this.pickSupport.endPicking(dc);
this.pickSupport.resolvePick(dc, dc.getPickPoint(), this);
}
} finally {
dc.restoreDefaultDepthTesting();
dc.restoreDefaultCurrentColor();
if (dc.isPickingMode()) dc.restoreDefaultBlending();
ogsh.pop(gl);
}
}
protected int computeCartesianPolygon(
Globe globe,
List<? extends LatLon> locations,
List<Boolean> edgeFlags,
Vec4[] points,
Boolean[] edgeFlagArray,
Matrix[] transform) {
if (globe == null) {
String message = Logging.getMessage("nullValue.GlobeIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (locations == null) {
String message = "nullValue.LocationsIsNull";
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (points == null) {
String message = "nullValue.LocationsIsNull";
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (points.length < (1 + locations.size())) {
String message =
Logging.getMessage(
"generic.ArrayInvalidLength", "points.length < " + (1 + locations.size()));
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (transform == null) {
String message = "nullValue.TransformIsNull";
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (transform.length < 1) {
String message = Logging.getMessage("generic.ArrayInvalidLength", "transform.length < 1");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
// Allocate space to hold the list of locations and location vertices.
int locationCount = locations.size();
// Compute the cartesian points for each location.
for (int i = 0; i < locationCount; i++) {
LatLon ll = locations.get(i);
points[i] = globe.computePointFromPosition(ll.getLatitude(), ll.getLongitude(), 0.0);
if (edgeFlagArray != null) edgeFlagArray[i] = (edgeFlags != null) ? edgeFlags.get(i) : true;
}
// Compute the average of the cartesian points.
Vec4 centerPoint = Vec4.computeAveragePoint(Arrays.asList(points));
// Test whether the polygon is closed. If it is not closed, repeat the first vertex.
if (!points[0].equals(points[locationCount - 1])) {
points[locationCount] = points[0];
if (edgeFlagArray != null) edgeFlagArray[locationCount] = edgeFlagArray[0];
locationCount++;
}
// Compute a transform that will map the cartesian points to a local coordinate system centered
// at the average
// of the points and oriented with the globe surface.
Position centerPos = globe.computePositionFromPoint(centerPoint);
Matrix tx = globe.computeSurfaceOrientationAtPosition(centerPos);
Matrix txInv = tx.getInverse();
// Map the cartesian points to a local coordinate space.
for (int i = 0; i < locationCount; i++) {
points[i] = points[i].transformBy4(txInv);
}
transform[0] = tx;
return locationCount;
}