Method for generating digital three-dimensional model for topographic terrain from digital map data for use by e.g. mobile telephone, for mountain route, involves determining height scale for generating model for selected topographic region

摘要

The method involves selecting a defined topographic region by a subset of digital map data, where the subset is defined by a cluster in a map database. A height scale is determined for the selected region based on a fluctuation level by using a data base, where the fluctuation level indicates height fluctuation for the selected region in a z-direction. A digital model is generated for a part of the selected region based on the determined height scale and a predetermined longitudinal dimension scale. The fluctuation level is computed in real time for determining the height scale. Independent claims are also included for the following: (1) a computer program product with program code portions for performing a method for generating a digital three-dimensional (3D) model for a topographic terrain from digital map data (2) a device for producing a digital 3D model for a topographic terrain from digital map data.