Hidden contour line: meaning and use

Abstract

This article comprehensively analyzes the scientific basis of the concept of hidden contour lines, their content, functional tasks, and areas of practical application. Hidden contour lines are considered as an important graphic tool that serves to accurately represent invisible parts of relief, technical objects, and spatial structures. The study thoroughly examines the methodology of applying these lines in such areas as graphic modeling, geodesy, cartography, technical drawing, landscape analysis, and territorial planning. During the annotation, such aspects as revealing the internal morphological features of the relief using hidden contours, accurately depicting the internal structure of technical details, increasing the accuracy of spatial modeling, and ensuring the complete representation of complex objects in two-dimensional graphical form are widely explained.