GIS Orientation

8/20/2019 GIS Orientation

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GIS (Geographic Information System)

Orientation

Compiled By: Sujan Maka


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What is GIS?



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What is GIS?

• GIS = Geographic Information System

– Links databases and maps

– Manages information about places

– Helps answer questions such as:• Where is it?

• What else is nearby?

• Where is the highest concentration of ‘X’?

•

Where can I find things with characteristic ‘Y’?• Where is the closest ‘Z’ to my location?



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GIS

An integration of five

basic components

1. People

2. Data

3. Hardware4. Software

5. Procedures



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GIS functions

• Capture

• Store

•

Query• Analyze

• Display

• Output



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Capturing data

Hardcopy maps

Digital data



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Sources of GIS Data



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Storing data



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Raster and vector data

The vector data model

represents geographic features

much the same way maps do –

using points, line, and areas. Any

(x,y) co-ordinate system

references real world locations.

Raster data model assigns values

to cells that cover coordinate

locations. This format is well

suited to spatial analysis and isalso appropriate for storing data

collected in grid format.



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Query



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Analysis

Proximity Analysis

Network Analysis



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Display



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Output



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Application of GIS



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Application of GIS



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How can I use GIS?



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Application of GIS to civil Engineering Projects

• Assignment:

Enumerate at least 10 applications of GIS toCivil Engineering Projects



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GIS Orientation

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Transcript of GIS Orientation