Exercise
Introduction to GIS functionality
Step 1 Start ArcInfo
If necessary, start ArcInfo. Click the Start button in your Windows 2000 Task Bar and select Programs. Click the ArcInfo program group and click the ARC program.
Step 2 Navigate to the lesson02 directory
At the Arc: prompt, enter the WORKSPACE command followed by the pathname to the lesson02 directory for this module.
For example:
Arc: WORKSPACE d:\temp\introai\basicsai\lesson02 Verify your location by entering the command listed below. Arc: WORKSPACE
Step 3 Start the application
Enter the command line below to begin the demonstration. Arc: &RUN EX1.AML
Be patient while the menu environment is set. After a moment, a graphic display screen appears with a menu bar in the upper left corner. This main menu contains five choices that correspond to topics you learned about in this section: Display, Identify, Locate, Conditions, and Analysis.
Step 4 Display spatial data
Use the Display choice on the GIS Functionality menu to display spatial and attribute data for three layers of spatial data: Streets, Slopes, and Zoning.
Click Display -> Streets -> Spatial Data to display streets Click Display -> Slopes -> Spatial Data to display slopes Click Display -> Zoning -> Spatial Data to display zoning areas
Step 5 Display attribute data
future steps, you will examine attribute data for specific features.
Click Display -> Streets -> Attribute Data to display the attributes for the Streets layer Click Continue to view all of the attribute records
QUIT the popup window when finished
Click Display -> Slopes -> Attribute Data to display the attributes for the Slopes layer QUIT the popup window when finished
Click Display -> Zoning -> Attribute Data to display the attributes for the Zoning layer Click Continue to view all of the attribute records
QUIT the popup window when finished
Step 6 Identify street features
In the previous step, you displayed attribute data associated with all of the features in a spatial data layer. In this step, you will list attribute data associated with one feature in a spatial data layer.
Click Identify -> Identify Street
Read the text and click OK to continue.
Use your mouse to select a street and display its attributes in a popup window. QUIT the popup window when finished (the cursor will continue to be crosshairs). Use your mouse to select another street and display its attributes.
QUIT the popup window when finished (the cursor will continue to be crosshairs). Continue identifying a few more streets.
When you are finished identifying streets, be sure the Identify window is closed, make the ARCPLOT window the active window, and press 9. (Note: You can also stop identifying by holding down the Ctrl key and right-clicking.)
Step 7 Identify slope features
Slope features are polygons. To identify polygons, you need to click the mouse button while the cursor is within a polygon.
Click Identify -> Identify Slope
QUIT the popup window when finished (the cursor will continue to be crosshairs) Use your mouse to select another slope area and display its attributes.
QUIT the popup window when finished (the cursor will continue to be crosshairs) Continue identifying a few more slope areas.
When you are finished identifying slope polygons, be sure the Identify window is closed, make the ARCPLOT window the active window, and press 9.
Step 8 Identify zoning features
Because zoning features are also polygon features, you can use the same technique for identifying zoning features you used for selecting slope features.
Click Identify -> Identify Zoning
Read the text and click OK to continue. Use your mouse to select a zoning area and display its attributes in a popup window.
QUIT the popup window when finished (the cursor will continue to be crosshairs). Use your mouse to select another zoning area and display its attributes.
QUIT the popup window when finished (the cursor will continue to be crosshairs). When you are finished identifying slope polygons, be sure the Identify window is closed, make the ARCPLOT window the active window, and press 9.
Step 9 Locate specific features
In this step, you will select specific features from a list and graphically display them on the Streets layer. You are limited to selecting only three specific features in the demo: ESRI, Olive Street, and Schools.
Click Locate -> ESRI to display the location of ESRI Click Locate -> Olive St to display Olive Street
Click Locate-> Schools to display the locations of schools
Step 10 Select streets that meet specified conditions
The first steps of this exercise were mainly concerned with the display of data—merely a browsing of the Redlands database. In this step, only the street features that meet a criterion you specify will be displayed.
Click Conditions -> Select Streets to display the Street selection menu Click Redlands city streets to highlight them on the display
Click Minor highways to highlight them on the display Click Done to dismiss the Street Selection menu
Step 11 Select land use that meets specified conditions
Now find areas that have a specific land use.
Click Conditions -> Select Land use to display the land use layer and the Land use selection menu
Click Commercial use to highlight those areas on the display Click Vacant next to commercial to highlight those areas
Land use planners are interested in lots that have an "open space" land use designation to use as parks and green areas. Display designated open space areas in Redlands, along with a table of associated statistics.
Click Open space with summary
Examine the statistics, then QUIT the popup window Click Done to dismiss the Land use selection menu
Click Conditions -> Clear selection to clear selection of features (This choice only clears the selection sets and prepares you for the next step. The graphic display remains the same.)
Step 12 Select parcels that meet specified conditions
Now you will find a select group of parcels by using a progressivly restrictive set of criteria.
Click Conditions -> Select Parcels to display the parcels layer and the Parcel selection menu
Click Zoned R-A (residential estate) to highlight those areas on the display Click Area greater than 100,000 sq.ft. to highlight those areas on the display Click Along Garden Street to highlight those areas on the display
Click Parcels meeting all conditions to highlight only the areas meeting all of the criteria Click Done to dismiss the Parcel selection menu
Step 13 Perform geographic analysis
Growth in the Redlands area may make it necessary to widen major arterials to
accommodate increasing traffic flow. To determine the impact on Redlands zoning and land use, you will select streets to widen at different distances. The software will graphically show you the proposed width and affected areas.
Click Analysis -> Spatial analysis
Read the text and click OK to display the Selection menu.
in the input field.) Click Apply
Be patient. It will take several seconds to create the street buffer. The buffer will be displayed in the graphics window and the Select a coverage menu will appear. Next, you will examine the affected areas based on current land use.
Click Land use to display all areas affected by the Barton Road buffer
Notice that Residential land use will be affected the most if Barton Road is widened. To a lesser degree, Vacant and Institutional land use will be affected.
Step 14 Experiment with the application
Now experiment with different combinations of streets, buffer distances, zoning, and land use on your own. To repeat the application, click the Cancel buttons until the Selection menu for Streets displays. Select a different street and buffer it with a larger or smaller distance.
Step 15 End the application
When you are finished with the application, click Quit from the main menu.
