X-Git-Url: https://gitweb.fperrin.net/?a=blobdiff_plain;f=tim%2Fprune%2Fdata%2FMidpointData.java;fp=tim%2Fprune%2Fdata%2FMidpointData.java;h=0000000000000000000000000000000000000000;hb=ce6f2161b8596f7018d6a76bff79bc9e571f35fd;hp=3fdebb284ac1208d8352f2a35ea01419ed6b7bad;hpb=2d8cb72e84d5cc1089ce77baf1e34ea3ea2f8465;p=GpsPrune.git

diff --git a/tim/prune/data/MidpointData.java b/tim/prune/data/MidpointData.java
deleted file mode 100644
index 3fdebb2..0000000
--- a/tim/prune/data/MidpointData.java
+++ /dev/null
@@ -1,98 +0,0 @@
-package tim.prune.data;
-
-/**
- * Class to hold information about the mid-points between
- * adjacent track points.  Used by the MapCanvas for creating
- * points by dragging.
- */
-public class MidpointData
-{
-	// track object
-	private Track _track = null;
-	// Scaled x, y values
-	private double[] _xValues = null;
-	private double[] _yValues = null;
-	// Validity flags
-	private boolean[] _valids = null;
-	// Flag to set data stale
-	private boolean _needRefresh = true;
-
-
-	/**
-	 * Flag the data as needing to be updated
-	 * @param inTrack track object from which to get the data
-	 */
-	public void updateData(Track inTrack)
-	{
-		_track = inTrack;
-		_needRefresh = true;
-	}
-
-	/**
-	 * Update the arrays of data from the track
-	 */
-	private synchronized void updateData()
-	{
-		_needRefresh = false;
-		if (_track == null) return;
-		// Make arrays the right size
-		final int numPoints = _track.getNumPoints();
-		if (_xValues == null || _xValues.length != numPoints)
-		{
-			_xValues = new double[numPoints];
-			_yValues = new double[numPoints];
-			_valids  = new boolean[numPoints];
-		}
-		if (numPoints <= 0) return;
-		_valids[0] = false;
-
-		// Loop over the points in the track
-		for (int i=1; i<numPoints; i++)
-		{
-			boolean pointValid = false;
-			DataPoint point = _track.getPoint(i);
-			if (point != null && !point.getSegmentStart() && !point.isWaypoint())
-			{
-				_xValues[i] = (_track.getX(i) + _track.getX(i-1)) / 2.0;
-				_yValues[i] = (_track.getY(i) + _track.getY(i-1)) / 2.0;
-				pointValid = true;
-			}
-			_valids[i] = pointValid;
-		}
-	}
-
-	/**
-	 * Find the nearest point to the specified x and y coordinates
-	 * or -1 if no point is within the specified max distance
-	 * @param inX x coordinate
-	 * @param inY y coordinate
-	 * @param inMaxDist maximum distance from selected coordinates
-	 * @return index of nearest point or -1 if not found
-	 */
-	public int getNearestPointIndex(double inX, double inY, double inMaxDist)
-	{
-		if (_track == null) return -1;
-		if (_needRefresh) updateData();
-		final int numPoints = _track.getNumPoints();
-		int nearestPoint = 0;
-		double nearestDist = -1.0;
-		double currDist;
-		for (int i=1; i < numPoints; i++)
-		{
-			if (_valids[i])
-			{
-				currDist = Math.abs(_xValues[i] - inX) + Math.abs(_yValues[i] - inY);
-				if (currDist < nearestDist || nearestDist < 0.0)
-				{
-					nearestPoint = i;
-					nearestDist = currDist;
-				}
-			}
-		}
-		// Check whether it's within required distance
-		if (nearestDist > inMaxDist && inMaxDist > 0.0) {
-			return -1;
-		}
-		return nearestPoint;
-	}
-}