Kardi Teknomo
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GIS Tutorial:

What is GIS
GIS data model
Vector Data
Vector Representation
Raster Data
TIN model
Scale of Map
Introduction to ArcGIS
Exploring ArcMap
Basic GIS technique
Extract part of the map
Query by Attribute
Create layer from selection
Convert Layer to Shape File
Create a New Map from Extracted Layers
Create Choropleth map
Showing only selected layers
Create Dot Density map
Change Symbol of Points
Add Field and Calculate Value of Table
Statistic, Sort and Summary
GIS Resources

Map Scale

By Kardi Teknomo, PhD.


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If you never learn about scale map here is the simple explanation. Map is a projection of the earth into a flat two dimensional plane.



When we say scale 1:1 the meaning is 1 centimeter in the real ground is corresponding to 1 centimeter on the map, 1 inch on the map is equal to 1 inch on the map. The unit is not important. Map scale is using relative unit that you can use any distance unit (inch, cm, m, yard, km, mile, nautical mile etc.) to get the same scale.

Scale 1:100,000 have meaning that 1 cm on the map is equivalent to 1 km on the ground. Using this scale, if the diameter of your city is about 20 km, you may print the city map on a piece of A4 paper (29.7 cm by 21 cm).

Architects, mechanical engineers and civil engineers usually use 1:10 or 1:20 for detail construction drawing and 1:100 or 1:500 for site plan. To see your neighborhood in quite detail, you may use scale 1:500 to 1:1000. To see your whole city in a piece of A4 paper, you may use scale about 1:10,000 to 1:100,000 (depending how large is your city area).

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This tutorial is copyrighted.

Preferable reference for this tutorial is

Teknomo, Kardi. Introduction to GIS. http:\\people.revoledu.com\kardi\ tutorial\GIS\




© 2006 Kardi Teknomo. All Rights Reserved.
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