METHOD FOR DISPLAYING A POSITION ON A MAP

摘要

There is disclosed a method executable by an electronic device for displaying a position on a map. The method comprises appreciating coordinates of position; appreciating coordinates of a map object having a curve near position; identifying a point of curve nearest to position comprising identifying a first segment of curve bounded by a first region and a second segment of curve bounded by a second region, determining that a distance from position to a point of first segment is not greater than a distance from position to a known nearest point of second region, and calculating a shortest distance from position to first segment as a shortest distance from position to either of first segment and second segment without calculating a distance from position to at least one point of second segment other than known nearest point of second region; and causing displaying, on map, of an indication of point of curve nearest to position.

主权项

1. A computer-implemented method for displaying a position on a map, the method executable by an electronic device causing displaying of the map, the method comprising:
appreciating coordinates of the position; appreciating coordinates of an object having a curve near the position; identifying a point of the curve nearest to the position, said identifying comprising
identifying a first segment of the curve bounded by a first region and a second segment of the curve bounded by a second region;determining that a distance from the position to a point of the first segment is not greater than a distance from the position to a known nearest point of the second region; andcalculating a shortest distance from the position to the first segment as a shortest distance from the position to either of the first segment and the second segment without calculating a distance from the position to at least one point of the second segment other than the known nearest point of the second region; and causing displaying, on the map, of an indication of the point of the curve nearest to the position.