Creation of a digital model of the location based on raster image in Topocad automated design system

Abstract

Problem. This article analyzes and generalizes the technology of building a digital model of the area based on a raster image in the Topocad automated design system. The functional capabilities of this software complex and the features of creating digital models of the terrain and situation are considered. The methods of transformation of raster images, construction of situational elements and tools for editing the digital model of the terrain are presented. The issue of creating a digital spatial model based on a raster image is currently quite relevant due to the limited possibility of using paper media. The use of cartographic materials in digital format is becoming increasingly popular nowadays. Cartographic materials in paper form become unusable over time. A simple and reliable way to save cartographic materials is to transform them into digital terrain models. Goal. The purpose of this article is to analyze and generalize the technology of building a digital terrain model based on a raster image in the Topocad automated design system, consider the functionality of this software complex and the features of creating digital models of the terrain and situation. Methodology. The technical parameters and functionality of the Topocad software complex were analyzed. Topocad is an automated design (CAD) system, created specifically for processing the results of planar and linear surveys, creating CMM, preparing topographic drawings, geodetic support for construction, surveying support for the development of mineral deposits, collecting and updating GIS data. Results. The Topocad software complex is intended for the creation of an engineering digital model of the area based on the data of engineering and geodetic surveys, the preparation of the CMM for further design, and the release of topographic plans and tablets based on it. Materials and data created with the help of the Topocad program can be successfully used as a spatial basis for geo-information, cadastral and other systems of various purposes, conducting large-scale regular plans. The general principles of work extend to the creation and editing of all geometric elements, determination of the planned position of the thematic objects of the situation, construction of surface elements, etc. Each type of element has its own creation, editing and deletion commands. Originality. The considered sequence of works is quite simple and allows you to save paper cartographic materials. Practical value. The considered approach allows designers to use automated design systems when solving any tasks in the case of the availability of initial data in the form of a paper map, which will significantly simplify the complexity of the work, reduce its execution time and improve the quality of design results.