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