SYSTEM FOR PRODUCING DIGITAL ELEVATION MODEL AND DIGITAL TERRAIN MODEL USING NUMERICAL MAP AND METHOD THEREFOR

摘要

The present invention relates to a system for producing a digital elevation model using a digital map, and a method thereof, wherein the aerial elevation and satellite images read from the digital elevation model DB are generated as a digital elevation model, and the format of the generated digital elevation model is ASCII information. A digital elevation model conversion module that converts ASCII digital elevation model and converts the digital map read from the digital map DB into contour and elevation point layers, and converts the height values of the classified layers into ASCII information to convert ASCII numeric map elevation. A digital map converting module for generating information, and extracting coordinate values of each layer included in the ASCII digital map elevation information, extracting the coordinate values included in the ASCII digital elevation model, and the coordinates of the extracted ASCII digital map elevation information. Values and layers corresponding to the values in the ASCII numerical elevation model according to the interpolation method read from the interpolation database. To meet and includes a digital elevation model correction and control module to add and modify.;Digital elevation model, digital map, format, ASCII, layer, recent interpolation, irregular triangle network interpolation, reverse distance interpolation, kriging interpolation, Gaussian interpolation