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This map of the Falkland Islands incorporates several elements of map layout: a title, a scale bar, a legend, and an inset map. This is a compromise between the fluid and compartmentalized approaches to layout order, with the non-map elements sitting "on top" of the main map. Here, the top-heavy main map is balanced by the non-map elements below.
After this, the cartographer compiles the data and experiments with the many different methods of map design and production (including generalization, symbolization, and other production methods) in an attempt to encode and portray the data on a map that will allow the map user to decode and interpret the map in the way that matches the ...
These conflicts can be reduced to a basic conflict between the need for more data on the map, and the need for less, with generalization as the tool for balancing them. One challenge with the information theory approach to generalization is its basis on measuring the amount of information on the map, before and after generalization procedures. [9]
A visual variable, in cartographic design, graphic design, and data visualization, is an aspect of a graphical object that can visually differentiate it from other objects, and can be controlled during the design process.
In cartography, a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane. [1] [2] [3] In a map projection, coordinates, often expressed as latitude and longitude, of locations from the surface of the globe are transformed to coordinates on a plane.
GIS data acquisition includes several methods for gathering spatial data into a GIS database, which can be grouped into three categories: primary data capture, the direct measurement phenomena in the field (e.g., remote sensing, the global positioning system); secondary data capture, the extraction of information from existing sources that are ...
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A world map is a map of most or all of the surface of Earth. World maps, because of their scale, must deal with the problem of projection. Maps rendered in two dimensions by necessity distort the display of the three-dimensional surface of the Earth. While this is true of any map, these distortions reach extremes in a world map.