Patent ID: 9568333
Date: 2017-02-14
CPC Classifications: G01C,G06K,G06T

Claim:
1. A system for displaying a three-dimensional (3D) map, the system comprising: a memory having computer readable instructions stored thereon; and at least one processor configured to execute the computer readable instructions to: determine whether an object to be displayed on a map screen intersects with a route guiding line; perform reduction on data of a polyline corresponding to the route guiding line; and display the object and the route guiding line on the map screen, and to blend the object intersecting with the route guiding line; wherein the at least one processor is configured to set a detection area for detecting the object intersecting with the route guiding line based on a map scale level displayed on the map screen, wherein the detection area and a plurality of unit lengths are stored in a table, wherein the at least one processor is configured to select at least one unit length of the unit lengths from the table based on the map scale level and to reduce the route guiding line by the at least one unit length of the unit lengths being selected, and wherein the at least one processor is configured to perform an operation of reducing a number of vertices with an orthogonal distance between a straight line connecting both end points of vertices constituting the polyline of the route guiding line and an internal vertex excluding the both end points, until an orthogonal distance value between a vertex and the straight line is smaller than the selected at least one unit length.