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A map symbol or cartographic symbol is a graphical device used to visually represent a real-world feature on a map, working in the same fashion as other forms of symbols. Map symbols may include point markers, lines, regions, continuous fields, or text; these can be designed visually in their shape, size, color, pattern, and other graphic ...
Decoration, additional symbols attached to the text, is used differently on maps than in block text. Common decorations such as underline and strikeout are rarely used, but a halo or mask , hiding the underlying features around a label, is often used to increase legibility where there are many features that cannot be avoided. [ 16 ]
The most common purpose of a thematic map is to portray the geographic distribution of one or more phenomena. Sometimes this distribution is already familiar to the cartographer, who wants to communicate it to an audience, while at other times the map is created to discover previously unknown patterns (as a form of Geovisualization). [17]
A weather map, also known as synoptic weather chart, displays various meteorological features across a particular area at a particular point in time and has various symbols which all have specific meanings. [1] Such maps have been in use since the mid-19th century and are used for research and weather forecasting purposes.
A bivariate map or multivariate map is a type of thematic map that displays two or more variables on a single map by combining different sets of symbols. [1] Each of the variables is represented using a standard thematic map technique, such as choropleth , cartogram , or proportional symbols .
Different mapping media, such as posters, brochures, folded maps, page maps, screen displays, and web maps have advantages and disadvantages for different purposes, audiences, and usage contexts. Data Collection : In the era of Geographic information systems , it seems like vast amounts of data are available for every conceivable topic, but ...
A cartogram (also called a value-area map or an anamorphic map, the latter common among German-speakers) is a thematic map of a set of features (countries, provinces, etc.), in which their geographic size is altered to be directly proportional to a selected variable, such as travel time, population, or gross national income. Geographic space ...
National Park standard point symbols, using shape to represent different types of facilities, a nominal variable. A shape is a simple design that is used to symbolize an attribute on a map. [11] Shape is most commonly attached to point features in maps.