By including a map scale like the image above, if the map is photocopied and reduced in size, the scale can still be used. Otherwise, 1 inch would no longer equal what it should.
Maps are considered large scale maps or small scale maps. A large scale map shows greater detail because the scale is a larger fraction than a small scale map. Large scale maps have a scale of , or greater ,, ,, Maps with scales from , to , are considered intermediate. Small scale maps are those with scales smaller than , A map of the world that fits on two pages of letter sized paper would be very small scale with a scale of around ,, Here are 3 views of the same location on maps with different scales:.
Why are maps like fish? They both have scales! Search Google News for more 'Lost Hiker' news items. The scale length and numbers get adjusted as the map is zoomed in or out. To see an example of measuring distances using bar scale, check the slope calculation from contour lines section.
Knowing the the fractional scale of a map, an engineer's or architect's scale ruler can be used to find the ground distances directly without the above mathematical calculations.
The rulers can be found in both metric and English units of measurment. Many compasses have a similar scale ruler on their base plate. Finding distances of meandering features such as trails or rivers can be challenging and time consuming using a straight-edged object such as a ruler; in such cases you can use a string and place it on the map along the length of the feature, then place the string beside the bar scale for a direct measurement or measure the lenght of it with a ruler.
You can conveniently measure distances between any two points on topographic maps or Google Maps base maps by using the distance and bearing tool in the Geokov Map Maker. Alternatively the line tool of the Map Maker can be used to draw a line along a feature or between points; the length of the line distance will be shown in the legend to the left of the map.
As mentioned above maps come in variety of scales. Large or small scale maps can be distinguished by the use of fractional or ratio expressions. A map covering a large area e. Most times the comparison of large scale and small scale maps can be relative. For example a map is smaller scale than a map. A digital map's size might also get altered by saving it to another format e. The same problem applies when a hard copy map is reproduced by photocopying.
Note that in such situations the original ratio scale or verbal scale of the map would not be accurate anymore.
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