Lab 1: Geodatabase Topology
Introduction
This lab teaches you how to define geodatabase topology rules and use them to clean up your data.
Instructions
Do not print the PDFs!
Do exercise # 7 (pages 90-121) in Chapter 3 of ArcGIS 9 Geodatabase Workbook (GeodatabaseWorkbook.pdf). The pdf file can be found in the I:\Students\Data\GIS\ArcGIS Documentation\ArcGIS9.1_documentation\ESRI_Library\Managing_data_with_ArcGIS folder. You can download the tutorial file (lab1.zip) here. You will need to unzip it. After you added the topology toolbar described on page 96, you need to click on the editor toolbar and select start editing to enable topology toolbar.
Additional Notes:
There is a version difference between the tutorial (9.1) and the software (10). Please replace the following steps in the Geodatabase Workbook with the following where noted:
Page 107-108 steps 1- 5
* In ArcToolbox search for the Feature to Polygon Tool
* Select LotLines as the input
* Change the output to "Lots" in the StudyArea feature dataset in your Editor Tutorial geodatabase
* Click OK
Page 109 step 5
* After step 5, reopen the topology properties before moving on
Page 116 steps 1 - 3
* In the Editor window on the left side of the ArcMap window, click "Lots" once in the Create Features window to select it
* In the Editor dropdown menu, point to Snapping and click Snapping Toolbar
* All the icons should be selected, shown by blue boxes
Page 117 step 10
* Make sure "Lots" is shown next to the Template button
* Check the box for "Use existing features in target"
Page 120 steps 10 through 14
* click the "list by selection" icon at the top of the table of contents
* uncheck lots by clicking on the blue and white square - it will move from selectable to not selectable
* using the edit select tool, click outside the lot to deselect it
* click the newly extended lot line so the one line is selected
* click the split polygons button in the topology toolbar to split the existing feature in target layer using selection
* make sure the target layer is lots
* click OK
* now make the lots selectable again and individually click the lots to make sure they split
Answer the following questions and produce a map showing the final topology errors of the whole map, all the corrections you made using inset maps as well as text boxes explaining how you made the corrections, lotlines, and lots of the dataset you've edited. Labs should be typed, include your name and lab number, be well organized, and be stapled together.