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package tim.prune.function.compress;
import tim.prune.App;
import tim.prune.UpdateMessageBroker;
import tim.prune.data.DataPoint;
/**
* Function to mark all the points in the selected rectangle
*/
public class MarkPointsInRectangleFunction extends MarkAndDeleteFunction
{
/** Minimum and maximum latitude values of rectangle */
private double _minLat = 0.0, _maxLat = 0.0;
/** Minimum and maximum longitude values of rectangle */
private double _minLon = 0.0, _maxLon = 0.0;
/**
* Constructor
* @param inApp App object
*/
public MarkPointsInRectangleFunction(App inApp)
{
super(inApp);
}
/** @return name key */
public String getNameKey() {
return "menu.track.markrectangle";
}
/**
* Set the coordinates of the rectangle
* @param inLon1 first longitude value
* @param inLat1 first latitude value
* @param inLon2 second longitude value
* @param inLat2 second latitude value
*/
public void setRectCoords(double inLon1, double inLat1, double inLon2, double inLat2)
{
if (inLon1 == inLon2 || inLat1 == inLat2)
{
// Coordinates not valid
_minLat = _maxLat = _minLon = _maxLon = 0.0;
}
else
{
if (inLon2 > inLon1) {
_minLon = inLon1; _maxLon = inLon2;
}
else {
_minLon = inLon2; _maxLon = inLon1;
}
if (inLat2 > inLat1) {
_minLat = inLat1; _maxLat = inLat2;
}
else {
_minLat = inLat2; _maxLat = inLat1;
}
}
}
/**
* Begin the function using the set parameters
*/
public void begin()
{
if (_maxLon == _minLon || _maxLat == _minLat) {
return;
}
// Loop over all points in track
final int numPoints = _app.getTrackInfo().getTrack().getNumPoints();
int numMarked = 0;
for (int i=0; i<numPoints; i++)
{
DataPoint point = _app.getTrackInfo().getTrack().getPoint(i);
// For each point, see if it's within the rectangle
final double pointLon = point.getLongitude().getDouble();
final double pointLat = point.getLatitude().getDouble();
final boolean insideRect = (pointLon >= _minLon && pointLon <= _maxLon
&& pointLat >= _minLat && pointLat <= _maxLat);
// Mark it accordingly (also resetting points outside the rect to false)
point.setMarkedForDeletion(insideRect);
if (insideRect) {
numMarked++;
}
}
// Inform subscribers to update display
UpdateMessageBroker.informSubscribers();
// Confirm message showing how many marked
if (numMarked > 0)
{
optionallyDeleteMarkedPoints(numMarked);
}
}
}
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