Elements of map contents with (0D) point reference units

Abstract

Although in the visual perception of a map, point symbols give way to lines, which cut the map surface, or colourful surface fillings, the role of point symbols in the analyses of deployment of real linear and surface objects—in activating the modelling features of the map—cannot be underestimated. This chapter presents different types of point signatures and their functions. An overview of the qualitative signature features is extended by examples illustrating the application of the original method for the construction of the scale isolines to increase the modelling value of old maps. The discussion of quantitative signatures focuses on the transfer of information and new map forms created on the basis of point data. An important part of the chapter is the section devoted to the design of dot maps and their usefulness in the evaluation of the spatial reach of phenomena and changes in phenomena intensity.