Task 3: Getting Information about Features

Now that you can move around the map, you can get information about the features you see on the map.

Use the Identify tool from the Main Toolbar to display database information about selected features A piece of information that can be displayed on the map such as a parcel number,fire hydrant, or aerial photograph. in the map. When you click the tool the cursor The shape on the screen that indicates where your mouse is pointing to on a graphic screen. It is usually an arrow shape, but changes to other forms where appropriate. becomes a white arrow with an "i" to point to individual features.

You can also find the distance between two points or the area of a space with the Measure tool on the Advanced Toolbar.

Some services A set of map data. can use Service Specific Tools through the Advanced Toolbar. Please read about this in the Reference section.

Try it out!

Identify features

  1. On the Layers tab select the layers with the features A piece of information that can be displayed on the map such as a parcel number,fire hydrant, or aerial photograph. Each individual feature is represented by a row in a query table. (See "table") you want to identify.

  2. Use Zoom and Pan to locate and view closely the portion of the map where the feature is located. The more you zoom in, the easier it is to find the feature you are interested in. Use the Overview map to verify your position on the full map.

  3. Click the Identify tool on the main toolbar.

  4. Click a map feature with the Identify cursor or drag a box around an area containing several of the feature.

The Results pane shows all the features A piece of information that can be displayed on the map such as a parcel number,fire hydrant, or aerial photograph. Each individual feature is represented by a row in a query table. (See "table") for each layer within the selection area, each on a separate page.

If several instances of the feature are selected, the heading shows how many there are from each layer. In the example 55 Parcels are selected. The Parcel shown in the table is as selected.

Show Report

External tables

There may also be several external tables The database location for data from a single layer. Each column in the table represents specific data (called "fields") for that layer. The rows (called "records") represent individual features (instances) of items in the layer. For example, the Parcel layer contains many parcels (rows) which have a number of fields, like street, address, APN, owner, etc. Usually there is a separate layer for these as well, so you can display them separately. associated with the feature. These are shown as tabs next to the main feature.

Results with several features

If you have several different layers selected, the Results include data for all the layers that have data.

  1. Use the outermost scroll bar to access the blue bars at the bottom for the other layers. In the example there are several water features selected.

  2. Click a bar to view its tables.

Measure Distances and Areas

  1. Select the features you want to measure on the  Layers pane and Zoom In close so you have a good view of them.

  2. Open the Advanced Toolbar with the Show Advanced Toolbar tool.

  3. Click the Measure Distance tool. Wait for the cursor to become a + as in the image below.

  4. To measure a distance, click at one end of the distance you want to measure and then at the other end. A line appears with the distance in feet across it.

  1. Clear the measurement by clicking Measure again, or with the Clear tool.

  2. To measure an area, continue clicking at the corners of the shape you want to measure. Double-click the last corner (not the first) to close the shape. The area appears in a yellow box next to the shape, and the lengths of all the sides appear across them.