/**
* work out the perpendicular distance between me and the supplied line segment
*
* @param lineStart start point of the line
* @param lineEnd end point of the line
* @return perpendicular distance off track.
*/
protected WorldDistance perpendicularDistanceBetween(
final WorldLocation lineStart, final WorldLocation lineEnd) {
final Point2D pStart = new Point2D.Double(lineStart.getLong(), lineStart.getLat());
final Point2D pEnd = new Point2D.Double(lineEnd.getLong(), lineEnd.getLat());
final Point2D tgt = new Point2D.Double(this.getLong(), this.getLat());
final double res = distanceToSegment(pStart, pEnd, tgt);
final WorldDistance distance = new WorldDistance(res, WorldDistance.DEGS);
// Note: we were using an algorithm to calculate the dist to a point on a
// continuous line, not
// a line segment. The above code class the correct algorithm.
// // sort out known angles
// double thetaOne = lineEnd.bearingFrom(lineStart);
// double thetaTwo = Math.PI - lineStart.bearingFrom(this);
// double thetaThree = thetaOne + thetaTwo;
//
// // and the single known distance
// double rangeToP1 = lineStart.rangeFrom(this);
//
// // now do our trig.
// double sinThetaThree = Math.abs(Math.sin(thetaThree));
// WorldDistance distance = new WorldDistance(rangeToP1 * sinThetaThree,
// WorldDistance.DEGS);
// sorted.
return distance;
}
/**
* create a new point that is this point rotated by set radians about the supplied axis
*
* @param pOrigin centre of rotation
* @param brg angle rotated through (radians)
* @return new location
*/
public final WorldLocation rotatePoint(final WorldLocation pOrigin, final double brg) {
final double resLong =
pOrigin.getLong()
+ (Math.cos((brg)) * (this.getLong() - pOrigin.getLong())
- Math.sin(brg) * (this.getLat() - pOrigin.getLat()));
final double resLat =
pOrigin.getLat()
+ (Math.sin((brg)) * (this.getLong() - pOrigin.getLong())
+ Math.cos(brg) * (this.getLat() - pOrigin.getLat()));
final WorldLocation res = new WorldLocation(resLat, resLong, 0d);
return res;
}
public final void setXXX() {
final double dep = w4.getDepth();
final double dLat = w4.getLat();
final double dLong = w4.getLong();
w1.setDepth(dep);
w1.setLat(dLat);
w1.setLong(dLong);
assertTrue(w1.equals(w4));
}
public void testDecimalConstructor() {
// test the secs component
WorldLocation worldLoc = new WorldLocation(22, 0, 45, 'N', 22, 0, 1.45, 'W', 0);
assertEquals("right lat", 22.0125, worldLoc.getLat(), 0.001);
assertEquals("right long", -22.000402, worldLoc.getLong(), 0.00001);
// now the mins component
worldLoc = new WorldLocation(22, 0.5, 00, 'N', 14, 0.5, 0, 'W', 0);
assertEquals("right lat", 22.008, worldLoc.getLat(), 0.01);
assertEquals("right long", -14.008333, worldLoc.getLong(), 0.00001);
// now the degs component
worldLoc = new WorldLocation(22.5, 0, 00, 'N', 14.5, 0, 0, 'W', 0);
assertEquals("right lat", 22.5, worldLoc.getLat(), 0.01);
assertEquals("right long", -14.5, worldLoc.getLong(), 0.00001);
//
// NOW LET'S REVERSE THE HEMISPHERE
// test the secs component
worldLoc = new WorldLocation(22, 0, 45, 'S', 22, 0, 1.45, 'E', 0);
assertEquals("right lat", -22.0125, worldLoc.getLat(), 0.001);
assertEquals("right long", 22.000402, worldLoc.getLong(), 0.00001);
// now the mins component
worldLoc = new WorldLocation(22, 0.5, 00, 'S', 14, 0.5, 0, 'E', 0);
assertEquals("right lat", -22.008, worldLoc.getLat(), 0.01);
assertEquals("right long", 14.008333, worldLoc.getLong(), 0.00001);
// now the degs component
worldLoc = new WorldLocation(22.5, 0, 00, 'S', 14.5, 0, 0, 'E', 0);
assertEquals("right lat", -22.5, worldLoc.getLat(), 0.01);
assertEquals("right long", 14.5, worldLoc.getLong(), 0.00001);
}
/**
* note that addToMe changes this object
*
* @param delta the offset to add to this point
*/
public void addToMe(final WorldVector delta) {
// check we have our model
if (_model == null) {
_model = new MWC.Algorithms.EarthModels.FlatEarth();
}
// do the calculation with our model
final WorldLocation res = _model.add(this, delta);
// update ourselves to the result
setLat(res.getLat());
setLong(res.getLong());
setDepth(res.getDepth());
}
public final void testGetLong() {
assertEquals(w1.getLong(), 12.4, 0d);
}
/** put our keywords into the XML description */
protected static String swapKeywords(
final DetectionEvent detection,
final Status currentLocation,
final String weapon,
final TargetType theTarget) {
// amend string template to include available parameters
final Float brg_degs = detection.getBearing();
final WorldDistance rng = detection.getRange();
// take a copy of the string
String working = new String(weapon);
// swap the bearing
if (brg_degs != null) {
final String brg_val = "" + brg_degs.floatValue();
working = replaceAll(working, "$BRG$", brg_val);
}
// swap the range
if (rng != null) {
final String rng_val = "" + rng.getValueIn(WorldDistance.YARDS);
working = replaceAll(working, "$RNG$", rng_val);
}
// insert the location of the target
if (brg_degs != null) {
final float brg_val = brg_degs.floatValue();
// do we know range?
if (rng != null) {
// yes, compute target location
final WorldVector newVector =
new WorldVector(
MWC.Algorithms.Conversions.Degs2Rads(brg_val),
rng.getValueIn(WorldDistance.DEGS),
0);
final WorldLocation newLoc = currentLocation.getLocation().add(newVector);
// produce strings from this location
final String theDepth = "" + newLoc.getDepth();
final String theLat = "" + newLoc.getLat();
final String theLong = "" + newLoc.getLong();
// put these strings into the new behaviour
working = replaceAll(working, "$TGT_DEPTH$", theDepth);
working = replaceAll(working, "$TGT_LAT$", theLat);
working = replaceAll(working, "$TGT_LONG$", theLong);
} else {
// no, send the weapon down a bearing for XXXX yds
// compute target location
final double TGT_RANGE = 5000;
final WorldVector newVector =
new WorldVector(
MWC.Algorithms.Conversions.Degs2Rads(brg_val),
MWC.Algorithms.Conversions.Yds2Degs(TGT_RANGE),
0);
final WorldLocation newLoc = currentLocation.getLocation().add(newVector);
// produce strings from this location
final String theDepth = "" + newLoc.getDepth();
final String theLat = "" + newLoc.getLat();
final String theLong = "" + newLoc.getLong();
// put these strings into the new behaviour
working = replaceAll(working, "$TGT_DEPTH$", theDepth);
working = replaceAll(working, "$TGT_LAT$", theLat);
working = replaceAll(working, "$TGT_LONG$", theLong);
}
}
if (theTarget != null) {
// output the XML header stuff
// output the plot
final java.io.StringWriter newString = new StringWriter();
// final com.sun.xml.tree.XmlDocument doc = new com.sun.xml.tree.XmlDocument();
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
Document doc = null;
try {
DocumentBuilder builder = factory.newDocumentBuilder();
doc = builder.newDocument();
final org.w3c.dom.Element type =
ASSET.Util.XML.Decisions.Util.TargetTypeHandler.getElement(theTarget, doc);
doc.appendChild(type);
doc.setNodeValue(type.getTagName());
// doc.changeNodeOwner(type);
// doc.setSystemId("ASSET XML Version 1.0");
// Use a Transformer for output
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(newString);
transformer.transform(source, result);
} catch (ParserConfigurationException e) {
e.printStackTrace(); // To change body of catch statement use Options | File Templates.
} catch (DOMException e) {
e.printStackTrace(); // To change body of catch statement use Options | File Templates.
} catch (TransformerFactoryConfigurationError transformerFactoryConfigurationError) {
transformerFactoryConfigurationError
.printStackTrace(); // To change body of catch statement use Options | File Templates.
} catch (TransformerException e) {
e.printStackTrace(); // To change body of catch statement use Options | File Templates.
}
// // ok, we should be done now
// try
// {
// doc.write(newString);
// }
// catch(java.io.IOException e)
// {
// e.printStackTrace();
// }
// try to extract the <target type portion
if (newString != null) {
final String val = newString.toString();
final String startIdentifier = "<TargetType";
final String endIdentifier = "</TargetType";
final int start = val.indexOf(startIdentifier);
final int end = val.lastIndexOf(endIdentifier);
final String detail = val.substring(start, end + endIdentifier.length() + 1);
// lastly, replace the string
working = replaceAll(working, "<TargetType/>", detail);
}
}
return working;
}
