void construct(PlanningSegment seg, WorldLocation origin, HiResDate date) {
// check we have some data
if (date == null || origin == null) return;
double timeTravelledMillis = getSecsTravelled(seg) * 1000;
// ditch the existing items
seg.removeAllElements();
// ok build for this segment
double courseDegs = seg.getCourse();
double courseRads = MWC.Algorithms.Conversions.Degs2Rads(courseDegs);
long timeMillis = date.getDate().getTime();
final long timeStepMillis;
final long ONE_MIN = 60 * 1000;
final long ONE_HOUR = 60 * ONE_MIN;
final long ONE_DAY = 24 * ONE_HOUR;
// use a time step appropriate to how long we're generating the track for
if (timeTravelledMillis <= 4 * ONE_HOUR) timeStepMillis = ONE_MIN;
else if (timeTravelledMillis <= 12 * ONE_HOUR) timeStepMillis = 10 * ONE_MIN;
else if (timeTravelledMillis <= 2 * ONE_DAY) timeStepMillis = 30 * ONE_MIN;
else timeStepMillis = ONE_HOUR;
// now work out how far he will have travelled in a time step
double distPerMinute = getMinuteDelta(seg);
double distPerStep = distPerMinute * (timeStepMillis / ONE_MIN);
WorldVector vec =
new WorldVector(courseRads, new WorldDistance(distPerStep, WorldDistance.METRES), null);
for (long tNow = timeMillis;
tNow <= timeMillis + timeTravelledMillis;
tNow += timeStepMillis) {
HiResDate thisDtg = new HiResDate(tNow);
// ok, do this fix
Fix thisF =
new Fix(thisDtg, origin, courseRads, seg.getSpeed().getValueIn(WorldSpeed.ft_sec) / 3);
// override the depth
thisF.getLocation().setDepth(seg.getDepth().getValueIn(WorldDistance.METRES));
FixWrapper fw = new FixWrapper(thisF);
fw.setColor(seg.getColor());
// and store it
seg.add(fw);
// reset the name, we're not going to use a human generated one
fw.resetName();
// produce a new position
origin = origin.add(vec);
}
}
@Override
protected void paintThisFix(CanvasType dest, WorldLocation lastLocation, FixWrapper fw) {
// set the label format to ]my label format
if (_lastLabelFormat != null) fw.setLabelFormat(_lastLabelFormat);
// set the fix font-size to be my font-size
fw.setFont(this.getTrackFont());
// and now let it paint
super.paintThisFix(dest, lastLocation, fw);
}
@Override
public void findNearestHotSpotIn(
Point cursorPos,
WorldLocation cursorLoc,
ComponentConstruct currentNearest,
Layer parentLayer) {
// initialise thisDist, since we're going to be over-writing it
WorldDistance thisDist = new WorldDistance(0, WorldDistance.DEGS);
Enumeration<Editable> numer = getSegments().elements();
while (numer.hasMoreElements()) {
final PlanningSegment thisSeg = (PlanningSegment) numer.nextElement();
if (thisSeg.getVisible()) {
// produce a location for the end
FixWrapper endFix = (FixWrapper) thisSeg.last();
if (endFix != null) {
// how far away is it?
thisDist = endFix.getLocation().rangeFrom(cursorLoc, thisDist);
final WorldLocation fixLocation =
new WorldLocation(endFix.getLocation()) {
private static final long serialVersionUID = 1L;
@Override
public void addToMe(WorldVector delta) {
super.addToMe(delta);
// so, what's the bearing back to the leg start?
double newBearing = super.bearingFrom(thisSeg.first().getBounds().getCentre());
newBearing = MWC.Algorithms.Conversions.Rads2Degs(newBearing);
// limit the bearing to the nearest 5 deg marker
int m = ((int) newBearing / 10);
newBearing = m * 10d;
// trim it to being positive
if (newBearing < 0) newBearing += 360;
thisSeg.setCourse(newBearing);
}
};
// try range
currentNearest.checkMe(this, thisDist, null, parentLayer, fixLocation);
}
}
}
}
