protected static boolean isServiceVisible(DrawContext dc, PlaceNameService placeNameService) {
//noinspection SimplifiableIfStatement
if (!placeNameService.isEnabled()) return false;
return (dc.getVisibleSector() != null)
&& placeNameService.getMaskingSector().intersects(dc.getVisibleSector());
//
// return
// placeNameService.getExtent(dc).intersects(dc.getView().getFrustumInModelCoordinates());
}
protected static boolean isTileVisible(
DrawContext dc, Tile tile, double minDistanceSquared, double maxDistanceSquared) {
if (!tile.getSector().intersects(dc.getVisibleSector())) return false;
View view = dc.getView();
Position eyePos = view.getEyePosition();
if (eyePos == null) return false;
Angle lat =
clampAngle(
eyePos.getLatitude(),
tile.getSector().getMinLatitude(),
tile.getSector().getMaxLatitude());
Angle lon =
clampAngle(
eyePos.getLongitude(),
tile.getSector().getMinLongitude(),
tile.getSector().getMaxLongitude());
Vec4 p = dc.getGlobe().computePointFromPosition(lat, lon, 0d);
double distSquared = dc.getView().getEyePoint().distanceToSquared3(p);
//noinspection RedundantIfStatement
if (minDistanceSquared > distSquared || maxDistanceSquared < distSquared) return false;
return true;
}
/**
* 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 boolean isNavSectorVisible(
DrawContext dc, double minDistanceSquared, double maxDistanceSquared) {
if (!navSector.intersects(dc.getVisibleSector())) return false;
View view = dc.getView();
Position eyePos = view.getEyePosition();
if (eyePos == null) return false;
// check for eyePos over globe
if (Double.isNaN(eyePos.getLatitude().getDegrees())
|| Double.isNaN(eyePos.getLongitude().getDegrees())) return false;
Angle lat =
clampAngle(eyePos.getLatitude(), navSector.getMinLatitude(), navSector.getMaxLatitude());
Angle lon =
clampAngle(
eyePos.getLongitude(), navSector.getMinLongitude(), navSector.getMaxLongitude());
Vec4 p = dc.getGlobe().computePointFromPosition(lat, lon, 0d);
double distSquared = dc.getView().getEyePoint().distanceToSquared3(p);
//noinspection RedundantIfStatement
if (minDistanceSquared > distSquared || maxDistanceSquared < distSquared) return false;
return true;
}
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);
}
}