Lab #10

Lab #9B

1. The state of Iowa contains 99 counties.
2. As of 2001, the county in Georgia  that havd the larges population was Fulton County.
3. The number of cities with in the state of Washington that have a population greater than 10,000 but less than 49,000 is 31
4. The number of miles are 4105.56 of LA interstates
5.

6.1,441,652 acres
7. 522 zip codes
8.



9. there are 2 reservation

10.



Lab #9

I.

1.      What is spatial scope and what are the three types?

Special scope is the extent of area of the input data that are used in determining the values at output locations.  There are local operations, neighborhood operations, and global operations.

2.      What are the two types of Algebra used in queries?  Give an example of each.

There is set algebra which uses the operations less than(<), greater than(>) equal to(=), and not equal to(<>) which can be applied alone or in combination to select features from a set(one example in book is state = Vermont this will query the state of Vermont out)

There is also Boolean Algebra.  This uses the conditions of OR, AND and NOT to select features.  These expressions are most often used to combine set algebra conditions and create compound spatial selections ((area > 100,000) AND (farm_income < 10 billion))

3.      What are the different types of spatial selection operations?

There is ADJACENCY, CONTAINMENT,

II.

4.   Is there a feature dataset in the geodatabase? _yes___________

5.   What features classes are present? __PtDumeQuad, vegetation, wetlands__________________

II.                  Exercise 1: Prepare (simplify) a vegetation layer for the Los Angeles region for further spatial analysis.

6.   How many features (records) exist in the Vegetation feature class in the Lab9aData.mdb geodatabase? _10896______

7.   How many features (records) exist in the new VegCov feature class after running the dissolve operation? ___9____

8.   How many features (records) exist in the new “VegCov_Clip” feature class? ___1450_______

III.

9.   How many wetland features (records) were selected? _129____

10.   How many features (records) were selected? _12____

Lab #8

1)A database management system is a record keeping system.  Its functions are to provide data independence, multiple user-views, and centralized control and maintenance.

2)One-to-one combines a selected query item to select the desired result.  Many-to-one provides multiple items that are being queried.

3)Relational databases are popular due to a fast processing time. The also are more flexible, to provide a loose structure and can accommodate a large variety of data types

4. a)String or text data
    b)String of text data

5. a)LU_discription, LU_generak, LU_type, sq_miles, Acres, Shape_lenght, and Shape_Area
    e)92,236.7 acres
    f)

    g)  

Lab #7

I. Chapter 7

1. The information used for dynamic labels comes from where?

The info comes from the attribure data that is already in the file

2. You are making a map of Los Angeles and have a point layer that shows all the cities in the region. However, you want to show city names for only 3 cities. What is the most efficient way to achieve this?

??

3. Can you manually adjust the position of dynamic labels?

Yes they can if they have been converted to annotations otherwise you cannot

4. Which tool needs to be selected to adjust graphics?

The select elements tool

5. What are the two annotation types?

Standard and feature linked annotations

II. Chapter 18

1. You can create your own ArcMap templates.

a. True

2. If you create a map based on an ArcMap template file (.mxt), can you save it as an .mxd file?

Yes you can.

3. Describe two different ways you can access map templates.

You can open a normal template or a blank document that come pre installed with a template. Or you can choose to access a custom template

4. You are adding five point graphics to your map. Instead of having to change the properties for each one after you add it, you want to set the default point symbol to a size 12 purple star. How do you do this?

??

5. Describe two different ways you can change the color of a graphic circle.

One, in the properites dialog box click the symbol tab, click the color square and change the color

Two, int the drawing tool bar, select the circle and change the color from the drop down box

III. Chapter 19

1. What is the first thing you should always do before setting up your map layout?

Set up the dimension and the orientation of the map

2. Why is the scale different in the data view versus the layout view?

Data view scale is the scale of the map while layout view is the scale of the print page.

3. What are three customization options available for the scale bar?

Scale and units, format, and number and marks

4. Why is it important to use the 1:1(Zoom to 100%) button?

This shows u how the project will come out to the full size of the paper without any distortion to fit the screen

5. Explain how a graphic added to your data view would respond differently compared to a graphic added to the layout view when navigating around your map.

If added to the the data view, the graphic would be its own data frame while when added to the layout view the graphic is posted on the current data frames

Part 2: More about Mapping in ArcGIS

Q1: Choropleth maps are a type of thematic map. Define what we mean by a choropleth map.

Choropleth is a map that represents each category by a different colors for particular range

Groups and Layer Files

Q2: Read about layer files in the ArcGIS Desktop Help. Describe their benefits.

Layer files are a quick access to the information all in one. They reference the information

Q3: How do layer files differ from layer packages?

A layer package is saved as a special file (layer_name.lpk) that contains the map layer, a copy of its data, and an XML file that has a brief description of the layer. Layer packages contain all the information necessary for users to put them to work in their own ArcGIS software

Map Tips and Dynamic Hyperlinks

Q4: What is the population of City of Long Beach for the year 2000?

461,522

Q5: What is the population for the City of Los Angeles in 2000?

3,694,820

Q6: Using the ArcGIS Desktop Help, describe the three types of hyperlinks that can be created.

• Document: When you click a feature with the Hyperlink tool, a document or file is launched using the application with which that file type is currently associated.
• Uniform resource locator (URL): When you click a feature with the Hyperlink tool, a Web page is launched in the default Web browser.
• Macro: When you click a feature with the Hyperlink tool, a value is sent to a macro. This option lets you create customized hyperlink behavior.

Selective Labeling

Lab #6

1. In your own words, describe how symbology can be influenced by scale.

When scale is changed, symbology stays the same size that it was set at. When you go to a smaller scale the symbols are comparatively smaller to the area around them.

2. What are two ways (one direct and one indirect) to access a layers symbol colors so that they can be changed?

Double click on the layer and while in the properties box access the symbology field to change colors.  Right click on the layer, go to properties and access the symbology field.

3. How would you access the graduated symbols classification option?

To access the graduated symbols classification one must access the layer properties box, select the symbology tab, change the show feature to quantities and select graduated symbols.

4. What are 5 other symbology styles (in addition to ‘Conservation’) that are available to customize your features?

Weather, waste water, hazmat, crime analysis, and survey.

5. How could you permanently save layer symbology for use later on?

Right click on the layer and  navigate to “save as layer file”

6. How can pyramids help raster data display faster?

 They are pre-defined resolution settings that vary from coarse to fine depending on the level that is zoomed in on

7. How could you quickly and temporarily change a layer name to aid display in the Table of Contents?

Click once on the layer. Then click again and you are able to type.

8. What is normalization? Give an example of when it would be used.

Normalization is dividing one attribute by another to find the ratio between them.  It would be used for finding the density of a population

9. How could dot density maps be misleading?

The random distribution of dots may be different from the actual distribution of values

Lab #4 ....more to come