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The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground. This simple concept is complicated by the curvature of the Earth 's surface, which forces scale to vary across a map. Because of this variation, the concept of scale becomes meaningful in two distinct ways.
A linear scale, also called a bar scale, scale bar, graphic scale, or graphical scale, is a means of visually showing the scale of a map, nautical chart, engineering drawing, or architectural drawing. A scale bar is common element of map layouts. On large scale maps and charts, those covering a small area, and engineering and architectural ...
File:Mapscaleline.svg. Size of this PNG preview of this SVG file: 138 × 18 pixels. Other resolutions: 320 × 42 pixels | 640 × 83 pixels | 1,024 × 134 pixels | 1,280 × 167 pixels | 2,560 × 334 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.
These are azimuthal orthographic projections of the Earth from four sides plus the poles. 726x726 pixels, aliased. XCFs have separate layers for water, land, coastlines, political borders, political borders over water (not shown in PNGs), and latitude & longitude gridlines (not shown in PNGs). Image:Blankmap-ao-000 -africa europe.png XCF.
Geodesy. The Universal Transverse Mercator (UTM) is a map projection system for assigning coordinates to locations on the surface of the Earth. Like the traditional method of latitude and longitude, it is a horizontal position representation, which means it ignores altitude and treats the earth surface as a perfect ellipsoid.
Cropping the map. 5. Now the map will be cropped using the Edit -> Clip map to Fence command. In the next step click OK. Style editing. 6. This is a proper time to edit the style of our layers. This is done from the Change Styles menu (Change Styles icon on the top level menu bar or right-click on layer Style -> Change Styles). Remove the Fill ...
World map. 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.