Create A Shapefile

From any type of image

By

Mrinmoy Majumderwww.baipatra.ws

Requirement

• DIVA – GIS

• Image of which shape file is to be made

• Data Files

• Knowledge of shapefile.

Create Shapefile from an image : Step : 1

• Install DIVA-GIS from http://www.diva-gis.org• Also download the DIVA – manual. PDF file to

know about DIVA• Extract and install DIVA into your computer• Click Layer > Add Layer or click on the ‘+’

symbol in the toolbar• Select the scanned image/satellite image and

click Open.

See Fig : 1 & Fig : 2

Create Shapefile.. : Step : 1

Fig : 1 DIVA Screen

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Create Shapefile.. : Step : 1

Fig : 2 Importing Image

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Create Shapefile from an image : Step : 2

– Click on Data > Draw Shape– Draw polygons/lines/point, whatever may

you wish– To represent an area select polygon (like

planes etc.)– To represent a perimeter or line (like river,

road etc.) select Line– To represent some place (like city, country

etc.) select PointSee Fig : 3

Create Shapefile.. : Step : 2

Fig : 3 ‘Draw Shape’ Screen

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Create Shapefile.. : Step : 2

Fig : 4 Enter Data

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Create Shapefile from an image : Step : 3

• To draw points , just click on the places on the map

• To draw lines, single click to change direction, double click to end drawing

• To draw polygon ,single click to create new vertices , double click to complete the polygon.

See Fig : 4

Create Shapefile from an image : Step : 4

• Each time a drawing is completed a table will pop up with three fields

• 1st one will be auto-configured and named as ‘ID’

• 2nd one will be ‘Value’ and the 3rd one , ‘Label’

• Write the data either in Label or in Value• It is better to write labels in ‘Label’ field

and corresponding data in the ‘Value’ field

See Fig : 5

Create Shapefile from an image : Step : 5

• Click Save in the ‘Draw Shape’ to save the shape file.

Fig : 5 3 fields