Geography Reference
In-Depth Information
press the Show Selected Records (a graphic with only blue lines in it) button. The two records
highlighted in cyan will appear at the top of the table by themselves. A new group of buttons
appears at the top of the table, but they're grayed out. Now click the gray box to the left of the
Right Bank record. The record turns yellow (indicating a selection within a selection), as does
the associated line. The new buttons are now available, so check out their ToolTips. The lesson:
If only selected records are shown, you can highlight records and features
within
selected
records and features, using a different color. Show all records. Find the Table Options button at
the top of the table. With the Table Options button, press Clear Selection.
27.
Zoom to the extent of the cole_vctr layer. Again select the records representing the banks of
the river. Click the Table Options button. Choose Switch Selection. Now the records and lines
(of cole_vctr) that were selected are not, and those records and lines that were not selected
now are. Now press Table Options, pick Select All, and observe the results. Find and click the
Clear Selection button at the top of the table. Zoom back to the previous level of magnification
with the Go Back to Previous Extent button on the Tools toolbar. The GPS track should again
dominate the window. Keep the Attributes of cole_vctr table open.
The ArcMap Tools toolbar contains some additional buttons not found on the ArcCatalog Tools toolbar. One
of these is a Select Features button that lets you graphically select features or areas on a map.
28.
On the Tools toolbar, find and press the Select Features icon. The ToolTip will explain what it
does and give some hints for use. Next to the Select Features icon is a drop-down menu arrow.
Click it and note the possible ways you can select features. Write the names of the icons of the
Standard toolbar in your Fast Facts File.
16
Done? ( ) Yes. ( ) No.
Experiment with the various Select Features options to understand how they work on the GPS
and Vectors layer. Note that each option has a different cursor.
29.
Make sure Select Feature by Rectangle is active. If any selections remain from your
experimentation has selected anything, use the Clear Selected Features button on the Tools
toolbar. Use the cursor to point at the line that delineates the island and click. The line again
becomes highlighted as does its associated record.
So here is the main message: You can select either records or features, and the selection is carried
through to the associated features or records.
30.
Hold down the Shift key and click again on the line of the island. Note that it becomes
unselected. Select it again. Now hold down the Shift key and click one of the other red arcs; it
is now selected as well.
Select a third red line. (The strange fact that you hold down Ctrl to select multiple records in
a table but use the Shift key to graphically select multiple features on a map is something
that you might want to write down in your Fast Facts File.)
17
To clear all selections: click the
16
Version 10.0 operates somewhat differently but the capabilities are the same.
17
Okay, for the most part, I'll quit reminding you about the Fast Facts File now. Either you are in the habit by
this time or you aren't.
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