Map is an image of natural and socio-economic phenomena on the earth, which is abbreviated on the plane by symbols and annotations through Cartographic General ization according to specific mathematical rules. In SuperMap, one or more Datasets in the same Geographic Range are displayed in the same SuperMap Map in the form of layers with a certain style or theme, which is called a map.

Thematic maps are maps that focus on one or more natural or socio-economic phenomena in the mapping area to meet specific needs. In SuperMap, thematic map is essentially the Symbolic Display of map layers, that is, using various graphics rendering styles (size, color, line type, filling, etc.) To graphically represent certain characteristics of elements.

Thematic mapping is a very effective way to analyze and visualize data. Data can be visualized by assigning a Layer Style to a Dataset; By drawing the thematic map based on one or more attributes of Dataset, not only the data can be visualized, but also the change distribution and law of the attributes used as Thematic variable and the development trend will be clear at a glance. The same geographic data can be used to create different layers to visualize different attributes, or to use a variety of different drawing and rendering methods for an attribute, that is, to create a variety of thematic maps, so as to analyze the distribution law and change characteristics of attributes from different perspectives, so as to facilitate prediction, forecasting and provide professional decision support.

This topic mainly introduces the basic knowledge of thematic maps. Please refer to the Map thematic expression for the detailed introduction of thematic map production, modification and other operations. Through the study of this document, you can learn the following:

This paper mainly introduces the basic concepts of Thematic variable, thematic sub-items, thematic map layers, thematic map display and so on.

This paper introduces various types of thematic maps and their applications.