Changeset 12737 in josm for trunk/src/org/openstreetmap/josm/data
 Timestamp:
 20170905T18:22:22+02:00 (2 years ago)
 File:

 1 edited
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trunk/src/org/openstreetmap/josm/data/coor/LatLon.java
r12736 r12737 348 348 } 349 349 return d; 350 } 351 352 /** 353 * Returns the heading that you have to use to get from this lat/lon to another. 354 * 355 * Angle starts from north and increases counterclockwise (!), PI/2 means west. 356 * You can get usual clockwise angle from {@link #bearing(LatLon)} method. 357 * This method is kept as deprecated because it is called from many plugins. 358 * 359 * (I don't know the original source of this formula, but see 360 * <a href="https://math.stackexchange.com/questions/720/howtocalculateaheadingontheearthssurface">this question</a> 361 * for some hints how it is derived.) 362 * 363 * @deprecated see bearing method 364 * @param other the "destination" position 365 * @return heading in radians in the range 0 <= hd < 2*PI 366 */ 367 @Deprecated 368 public double heading(LatLon other) { 369 double hd = atan2(sin(toRadians(this.lon()  other.lon())) * cos(toRadians(other.lat())), 370 cos(toRadians(this.lat())) * sin(toRadians(other.lat()))  371 sin(toRadians(this.lat())) * cos(toRadians(other.lat())) * cos(toRadians(this.lon()  other.lon()))); 372 hd %= 2 * PI; 373 if (hd < 0) { 374 hd += 2 * PI; 375 } 376 return hd; 350 377 } 351 378
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