DEFINITION, MAP FUNCTION, AND COMPONENTS MAP
Welcome to the blog
Science Lovers, to today's understanding of maps, scale maps, the map function,
and the components of the map is our discussion this time buddy. Immediately
wrote to the scene.
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| image source : techusg.com |
Map is a picture of
the earth's surface that is displayed on a flat surface with a certain scale. Picture of the
earth's surface can be mapped covering a wide area or only cover small areas.
Example maps depicting a wide area is the World Map, Map Continent, Indonesia
map, map of Sumatra, Java map, and so on. While examples of maps that depict
the earth's surface is narrower city map, maps of districts, a map of the urban
/ rural, even only in the form of a map of the school environment alone.
Map was first made
by the Babylonians around 2300 BCE. These maps are made from a slab of clay
that was originally destined for land tax purposes.
To illustrate the
map is absolutely necessary to use the scale. Scale is the ratio of the distance
on the map with the actual distance on the earth's surface. The scale can be a
number, a line, or both. Scale form of numbers called a numerical scale. While
the scale in the form of a graph called a graphic scale.
FUNCTION
MAP
Map is not only
necessary in the field of geography, but also needed in other areas. All
activities related to the location or spatial needs a map. Officers Ministry of
Settlement and Regional Infrastructure can not make its way without the map
beforehand. Large plantation companies that will open up plantations should
look at a map before starting work. Gob-voyagers who sailed the high seas would
be lost without a map.
In general, the map
function can be summed up as follows:
- Guides for people who are traveling to places that had never seen.
- Shows the location of a place on the earth's surface in relation to the other place (relative position).
- Show size, because of map can be measured distances, areas, or in the actual direction of the earth's surface.
- Show shapes such as the shape of the island, country, continent, river flow patterns and so on.
- Help researchers before doing a survey to determine the condition of the area to be studied.
- Tool to explain the plans proposed, and others.
THE
COMPONENTS MAP
1. Titles map
The title of the map
is usually placed at the top of the map. The title reflects the content and the
type of map.
2. Year and source cartography
Years or source
map-making can be placed at the bottom of the column legend or the bottom left
corner, beyond the outline of the map.
3. Signpost
Directions called
cardinal. Generally, use a pointing north. The pointer is placed on an empty
spot on the edge of the map so as not to interfere with the parent map.
4. Scale
The scale of the map
can be written under the legend, beyond the line of the edge map, or under the
heading of the map.
The scale of the map
can be grouped as follows.
- Scale cadastral maps, the maps with a scale between 1: 100 to 1: 5,000.
- Large-scale map, that map with a scale between 1: 5,000 and 1: 250,000.
- Medium-scale maps, the maps with a scale between 1: 250,000 and 1: 500,000.
- Small scale map, which maps with a scale between 1: 500,000 to 1: 1,000,000.
- Geographic scale map, ie a map with a large scale of 1: 1,000,000. geographic scale map with the map scale is often called the review.
5. Legend
Legend contains
descriptions of the symbols used on the map. Symbols are images used to
represent objects that are mapped. The aim is to facilitate users in
understanding maps.
6. Astronomy lines
Astronomical line
consists of latitude and longitude. Point to determine the position of
astronomical one place (location latitude and longitude). At the edge of the
map was written numbers that indicate degrees degrees of latitude or longitude.
Astronomical lines used in the maps are small to medium scale.
7. Outline
The margins are
usually made of two pieces with the provisions of the outline is thicker than
the line.
8. Inset
Inset is an image
map that shows the location or position of the area to the wider surrounding
area. For example, the position of Indonesia in the Asian continent. The map
was made outside the main map but still within the margins the main map.
Reference:
Fathurrahman. 2006. IPS Geography. Jakarta:
Erlangga.
Here's our
discussion this time pal, may be useful and thank you for visiting the blog
Science Lovers.
