GIS1 Lab
Department of
Geography & Urban Planning
Instructor:
Mohsin A. Abbasi
Exercise3:
Symbolizing, labeling and classifying features
Objective of this
exercise is to use different symbols, change them by increasing and decreasing
their size and also doing classification.
- Open
ArcMap from Start/Program file/ArcGIS and add the data of the which you
have downloaded from the blackboard.
- ArcMap
opens African countries and cities.
- Changing
Symbols: Right
click on cities in table of content and go to properties. Double click the
symbol and choose the symbol from the window. Then click OK.
- The
symbol in the table of contents is changed. Color and size of the symbol
can also be changed in same way.
- Change
the color and size of the symbol to see the difference.
- Labeling
the features: Now
label the cities in display area. This you can do by right click on the
cities and go to properties. Click properties and then click labels as
shown below
.
- Click
on “label features in this layer” on top. And in text string click name.
You can see the labels of the cities are marked in the map as below.
- Changing
Background Color:
You can change the color of the background of
- Click
“Frame” from top and go to Background dropdown menu. Select the color blue
and click OK. You can see the background is changed to blue as above.
- Classification: Right click on countries in
table of content and go to properties. When properties dialog box opens go
to symbology. Click categories on left and select Unique Value as shown
below.
- In
the value dropdown menu click “Name” and then click add value in the
bottom and select all the countries as shown below:
.
- Click
OK. Then click OK in the properties dialog box. You can see in the table
of contents that all countries are classified into different colors. You
can also change the color each country by double click on the color.
End
of exercise.