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Mapping is creating graphic representations of information using spatial relationships within the graphic to represent some relationships within the data. The common and original practice of mapping is the scaled portrayal of geographical features, that is, cartography. In the contemporary sense of data visualization, it includes metaphorical extensions of geographical map conventions and literacies to other kinds of data, as well as innovative ways of visualizing data not clearly related to the geographical archetype. In popular vernacular, mapping can just mean organizing or systematizing information.
Geography, cartography and geomatics
- In maps, aspects of the image are analogs for values in the information being presented. In geographical maps the images can correlate directly to geo-spacial properties, or they may symbolize abstractions such as political borders. Traditionally, the paper (or plane) represents the surface of the earth.
Contemporary maps of non-geographical data sets make use of and extend the familiar ways of organizing information in geographical maps to other kinds of data not necessarily concerned with spacial relationships per se. The foundational notion is that an arrangement of elements in a synthetic space can help to organize or clarify. Space in these maps may represent affinity rather than proximity, can represent set groupings, or, as is often the case, can use space a medium through which to diagram connecting networks. Spatial area can indicate magnitude or quantity. These kinds of parameters can be usefully applied in the visualizing of data, revealing a variety of relationships at a glance.
- Geospatial mapping, mapping with Geospatial analysis
- In geomatics or geospatial science and engineering:
Mapping, when referring to map-making, is often used interchangeably with cartography. Traditionally, a geographic map is created through cartographic protocols (i.e. determining the scale/level of detail and content of geographic or cartographic database, map projection and coordinate system selection and transformations, entry criteria and symbol specification for geospatial objects, generalization, layout design etc.). The term is also sometimes used for hi-tech geospatial data collection, e.g. LIDAR mapping. The acquisition of data with geo-referenced coordinates directly from terrain or imagery is more properly referred to as surveying.
Information science and data visualization
The designation "science map" normally refers to the content of the map rather than the methodology, though there is not a clear distinction between science maps and scientific diagrams such as graphs of experimental results projected into a Cartesian coordinate system. Science maps show a visual rendering of a dataset. Maps can be abstract, geographical, or feature-based, but are typically richer than simple x-y plots. Data can be used to generate a reference system over which other data—e.g., career trajectories—are overlaid. Data can also be projected onto an existing reference system (e.g., a map of the world).
The proliferation of Science maps owes a lot to the data processing and visualizing capabilities of computers, particularly the ability to correlate visual representations with algorithmic functions.
Biology and neuroscience
- Gene mapping, the assignment of DNA fragments to chromosomes
- Brain mapping, set of techniques to study the brain
- Map (mathematics), often a synonym for function
- Functional predicate, a logical symbol that may be applied to an object term to produce another object term
- Data mapping, data element mappings between two distinct data models
- Level design, the creation of levels, locales, stages, or missions for a video game
- Memory-mapped I/O, hardware pretending to be memory
- Page mapping, or paging, in virtual memory systems
- Cache mapping, the mapping of main memory locations into entries of a cache (computing)
- Texture mapping, in computer graphics
- Device mapping, the assignment of I/O devices to file descriptors, file names, file numbers, etc.
Logic, linguistics, and psychology
- Conceptual metaphor, an understanding one conceptual domain in terms of another conceptual domain
- Metaphor, cross mapping across two or more seemingly unrelated subjects
- Analogy, inference from a particular to another particular
- Mind mapping is the drawing of ideas and the relations among them
- Mapping of operational areas for the placement of resources in Production, costs, and pricing sites
- Mapping of sales regions and the location of customers for directing marketing efforts
- Mapping of supply chains for distribution and transportation and logistics
- Mapping a strategic "road map" for execution of business plans
- Mapping of operational areas for the routing of robots on confined paths
- Motion planning a map from exploration of viable routes
- Robotic mapping
Religion and mythology
- Spiritual mapping, a practice of some religions
- International Cartographic Association (ICA), the world body for mapping and GIScience professionals
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