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  2. Electronic navigational chart - Wikipedia

    en.wikipedia.org/wiki/Electronic_navigational_chart

    An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...

  3. Category : Wikipedia requested range maps for birds

    en.wikipedia.org/wiki/Category:Wikipedia...

    Pages in category "Wikipedia requested range maps for birds" The following 200 pages are in this category, out of approximately 370 total. This list may not reflect recent changes .

  4. Jenks natural breaks optimization - Wikipedia

    en.wikipedia.org/wiki/Jenks_natural_breaks...

    Choropleth map showing estimated percent of the population below 150% poverty in the Contiguous United States by county, 2020 that uses the Jenks natural breaks classification. Jenks’ goal in developing this method was to create a map that was absolutely accurate, in terms of the representation of data's spatial attributes.

  5. Cartogram - Wikipedia

    en.wikipedia.org/wiki/Cartogram

    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 ...

  6. Terrain cartography - Wikipedia

    en.wikipedia.org/wiki/Terrain_cartography

    USGS topographic map of Stowe, Vermont with contour lines at 20-foot intervals. Terrain cartography or relief mapping is the depiction of the shape of the surface of the Earth on a map, using one or more of several techniques that have been developed.

  7. File:Map of Shades State Park, Indiana.svg - Wikipedia

    en.wikipedia.org/wiki/File:Map_of_Shades_State...

    Map showing the location and shape of Shades State Park in Indiana: Date: 2 January 2012: Source: My own work, using custom-written MapScript applications with United States Census Bureau TIGER 2010 data: Author: Omnedon

  8. Heightmap - Wikipedia

    en.wikipedia.org/wiki/Heightmap

    Heightmap comes from the mathematical term 'map' and heightfield comes from the mathematical term 'vector field'. Heightmap is the more correct description because most heightfields are not a (vector) field in mathematical terms but they are always a map (in mathematical terms as well as in the visual representation).

  9. List of colors by shade - Wikipedia

    en.wikipedia.org/wiki/List_of_colors_by_shade

    Cyan is any of the colors in the blue-green range of the visible spectrum, i.e., between approximately 490 and 520 nm. It is considered one of the main subtractive primary colors. Cyan is sometimes considered green or blue because of the way it appears.