protected Vec4 draw(DrawContext dc, Iterator<TrackPoint> trackPositions) {
if (dc.getVisibleSector() == null) return null;
SectorGeometryList geos = dc.getSurfaceGeometry();
if (geos == null) return null;
if (!this.pipeShape.isInitialized) {
this.pipeShape.initialize(dc);
}
if (!this.junctionShape.isInitialized) this.junctionShape.initialize(dc);
int index = 0;
List<Vec4> points = new ArrayList<Vec4>();
while (trackPositions.hasNext()) {
TrackPoint tp = trackPositions.next();
if (index >= this.lowerLimit && index <= this.upperLimit) {
Vec4 point = this.computeSurfacePoint(dc, tp);
if (point != null) {
points.add(point);
}
}
if (++index >= this.upperLimit) break;
}
if (points.size() < 1) return null;
this.begin(dc);
{
this.pipeMaterial.apply(dc.getGL(), GL.GL_FRONT);
Vec4 p1 = points.get(0);
for (int i = 1; i < points.size(); i++) {
Vec4 p2 = points.get(i);
this.pipeShape.render(dc, p1, p2, this.pipeRadius);
p1 = p2;
}
this.junctionMaterial.apply(dc.getGL(), GL.GL_FRONT);
for (Vec4 point : points) {
this.junctionShape.render(dc, point, this.junctionShapeRadius);
}
}
this.end(dc);
return null; // TODO: return the last-drawn location
}
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);
}
}