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/*
* Copyright © 2014 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package org.altusmetrum.altoslib_14;
import java.io.*;
import java.lang.Math;
import java.util.*;
import java.util.concurrent.*;
public abstract class AltosMapPath {
public LinkedList<AltosMapPathPoint> points = new LinkedList<AltosMapPathPoint>();
public AltosMapPathPoint last_point = null;
static public int stroke_width = 6;
public abstract void paint(AltosMapTransform t);
public AltosMapRectangle add(AltosGPS gps, double time, int state, double gps_height) {
AltosMapPathPoint point = new AltosMapPathPoint(gps, time, state, gps_height);
AltosMapRectangle rect = null;
if (!point.equals(last_point)) {
if (last_point != null)
rect = new AltosMapRectangle(last_point.gps.lat_lon(), point.gps.lat_lon());
points.add (point);
last_point = point;
}
return rect;
}
private double dist(AltosLatLon lat_lon, AltosMapPathPoint point) {
return (new AltosGreatCircle(lat_lon.lat,
lat_lon.lon,
point.gps.lat,
point.gps.lon)).distance;
}
public AltosMapPathPoint nearest(AltosLatLon lat_lon) {
AltosMapPathPoint nearest = null;
double nearest_dist = 0;
for (AltosMapPathPoint point : points) {
if (nearest == null) {
nearest = point;
nearest_dist = dist(lat_lon, point);
} else {
double d = dist(lat_lon, point);
if (d < nearest_dist) {
nearest = point;
nearest_dist = d;
}
}
}
return nearest;
}
public void clear () {
points = new LinkedList<AltosMapPathPoint>();
}
}
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