Working with the map layers

Working with the map layers
Now that we have worked with ArcCatalog and learned about the basics of the
geodatabase, it is time to learn about the map:
1. From the Start menu, locate and run ArcMap 10.3 (or your version of
ArcMap). It is the one with the map and lens icon.
2. If you are opening ArcMap for the first time, you will be prompted with the
getting started dialog. Click on Cancel to work on the default document.
3. We want to work with our geodatabase on ArcMap. To do that, we need to
add a feature class to the map.
4. From the Table of Content window, right-click on the Layers node and click
on Add Data. This will open a dialog to select a geodatabase.
5. Since we established a folder in ArcCatalog, you should see it in Folder
Connection under the Look In dropdown.
6. Browse to the Restaurants.gdb geodatabase, select the Food_and_
Drinks feature class, and then click on Add, as illustrated in the followin
 You will see that a new layer has been created under layers named Venues.
This is the representation of the feature class. You can see that the name of
the layer is actually the alias name of the feature class by default, which we
have renamed in the The ArcGIS geodatabase section. ArcMap creates this
layer wrapper to visual a feature class, change symbology, control labels,
scaling, and so many other things.
Note that different symbologies have been assigned based on the restaurant
subtypes that we have mentioned in the The ArcGIS geodatabase section.