Geog 406 Advanced GIS

Danielle BramLab 2

Lab 2:GIS Review

Objectives:

  1. Create a File Geodatabase
  2. Perform on-screen digitizing and populate an attribute table
  3. Create a map and symbolize a layer.
  4. Generate a map layout and save to a jpeg image.
  5. Capture a screenshot of the geodatabase you created.
  6. Answer the questions below

Preparation:

  1. Create a webpage, lab2.htm. You will include answers to the questions below and all the required maps and screenshots.
  2. Create a link to lab2.htm from your labs.htm webpage.
  3. Access the lab data. Copy the Lab2_GISReview folder from the “Y:\courses_dbram\Geog406\Labs\” folder OR download the Lab2_GISReview.zip file from my website. This Lab2_GISReviewfolder should be placed somewhere on your local computer. i.e. in the My Documents folder.
  4. Once you have copied/downloaded the Lab2_GISReviewfolder, check the properties for the folder and all the files in it. Make sure Read only is checked off so that you can save changes later.
  5. Right click on the folder.
  6. Choose Properties at the end of the context menu.
  7. Check off Read only, if necessary.

Assignment:

  1. Create a new File Geodatabase named “Water”.
  2. Inside the Geodatabase, create a new feature dataset named “Water_Features”
  3. Inside the feature dataset, create apolygonfeature class named “Lakes”.
  4. Make sure the features class has a field named “Name”. Field type should be “text”.
  5. Also, inside the “Water_Features” dataset, create anotherpolygonfeature class named “Water_Towers”.
  6. Make sure the features class has a field named “Type”. Field type should be “text”.
  7. The“Aerial.tif” image does not have a defined projection. You need to define the projection so that it matches the projection used by all the other feature classes in the “CityData” geodatabase.
  8. After you have defined the projection, load the Aerial.tifinto ArcMap along with the “Water_Features” and “Lakes” feature classes you just created.
  9. As identified on the image below, digitize into their respective feature classes (at a scale of 1:3,000) the 2 lakes (place this in “Lakes” and 1 water tower (place this in the “Water_Features”).
  10. In the Lakes features class attribute table, under the “Name” field, insert the lake names (Lake # 1 and Lake # 2) that match the appropriate lake as shown in the image below.
  11. In the “Water_Features” feature class attribute table, under the “Type” field, enter “Water Tower” for the water tower.
  12. Symbolize the Lakes with a light blue fill.
  13. Symbolize the Water Tower with a yellow fill.
  14. Label the Lakes on the map using the names entered into the attribute table for those features. Labels should be white, bold, Arial font.

  1. Load the “FireHydrants” feature class and symbolize by unique values using the “tested” field. Set the “Yes” features to a green circle size 8, and the “No” features to a red circle size 8.
  1. Create a map layout with the following elements/requirements.
  2. Zoom to the full extent of the aerial image.
  3. Landscape orientation, 8.5 x 11 size.
  4. Title: “Kansas Water Locations”; Black Font;Verdana; bold; size 20.
  5. North Arrow Type: ESRI North 4
  6. Scale Bar: Type = Line 1; Units = Miles
  7. Insert your name and the date in the bottom right corner of the layout.
  8. Insert a Legend
  9. Export the map layout to a Jpeg image.
  10. Insert the Jpeg image into the lab2.htm doc so it displays on the webpage.
  11. Go to ArcCatalog and expand the “Water” geodatabase you created so you can view the feature dataset and feature classes contained within.
  12. Perform a screen capture (Alt + PrtScrn) of ArcCatalog and paste into a Word doc.
  13. Insert the Word doc or a link to the Word doc in the lab2.htm webpage.

Answer the following questions:

  1. In step 5 above, you needed to figure out the projection of the feature classes in the CityData geodatabase. What is it? How did you assign the projection? i.e. what tool did you use?
  2. What are some advantages to using a Geodatabase?
  3. What is a feature dataset? Does the CityData geodatabase contain a feature dataset?
  4. Is “Surface type” a possible valid name for a field in a newly created feature class? Why or why not?
  5. What is a domain?
  6. What are edges and vertices?
  7. What are the first and last steps for editing features?
  8. What is the purpose for setting up snapping environments when digitizing?
  9. Why did I instruct you to use dynamic labeling to label the features on the map? What are the benefits of this?
  10. What was the first thing you should have done when you started to create a map layout?

Items to be included in the lab2.htm file:

  1. A Jpeg image of the map layout.
  2. A document, or link to a document showing the screenshot of the geodatabase you created.
  3. The answers to the above questions.

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