Wednesday, October 27, 2010


Lab 8 part 1
1.  The Database Management System is a specialized computer program for organizing and manipulating data. It typically supports complex structures, to provide, security stability, and multiple.  Users often termed the database server
2.  One to one relationships occur when one entity is related to one other entity. Many to one relationships occur when one entity is related to many occurrences in another entity.  
3.  Relational databases are popular because it is a way of condensing down and joining togeather information that is in more than one spot.  It can also prevent redundancy, increase data quality and independence, create centralized control and allow multiple users.
Part 2
4.a.  stream or text
b.  stream or text
5.a.  name of  joined fields are land use discription, land use general, land use type, acres, shape long, shape area.
e.  92,236 acres

part 2

Monday, October 11, 2010


Lab 7
Ch. 7
1.  The information used in dynamic labels comes from the attribute table, like cities or road names.  You use the layer tab in the properties dialogue box to add or adjust them.
2.  To only show certain things like cities on a map you go to the layers tab in layer properties and use the SQL query button to create a query statement with just the info you want.
3.  Yes you can manually adjust labels by clicking on them and drag to desired position.
4.  To adjust graphics you use the select elements tool
5.  Two annotation types are database and map annotation
Ch. 18.
1.  True
2.  Yes, an .mxt can be saved as an .mxd.
3.  To access map template files you can chose on when starting ArcMap or you can go to file and click on new and go to my templates.
4.  To save a symbol you can save it in symbol selector dialogue box then set it as a default symbol.
5.  Two ways to change colors of a graphic is to change the color in symbol selector when choosing symbol or in the layers properties g to symbology and change color there.
Ch. 19
1.  The first thing you do when setting up a map is chose the dimensions and orientation.
2.  The scale changes when you are in layout view because the program adjusts the size of the map to fit the layout that would be printed.
3.  Three customization options for scale bar are label position, division units and text style.
It is important to zoom to 1:1 because it zooms to actual size and you can see the map at the resolution it would be on a printed page.
5.  In data view if you add a graphic you cannot adjust it in layout view.  If you add a graphic in layout view it does not show up in data view.



Lab 7

Wednesday, October 6, 2010

Lab 6 part 2




Lab 6 part 1



1.  When you have a large-scale map it is east to see symbols because they are larger for the small area they map is covering.  When you change the map scale to a smaller scale the symbols become much smaller and they become hard to distinguish and appear closer together.  If you increase the size of the symbol they becomes less precise in terms of location.

2.  Two ways to access they symbol colors are when in symbol selection you can choose they color when inserting symbol or you can go to layer properties and change the color of the symbols with the color ramp.

3.  In the layer properties dialogue box go to quantities then click graduated symbols

4.  Some symbology styles are public signs style, HAZMAT style, industrial style, road sign style and animal style.  (lol if you like In-n-Out)

5.  In the save layer dialogue box you must save the layer symbology as a .lyr file.

6.  Pyramids help display raster data faster by changing the size of the pixels depending on how zoomed in or out you are.  When zoomed out the pixels are bigger or coarser.  If it stayed the same size it would take forever when changing resolution. 

7.  You can left click twice slowly on it in the TOC and type in a new name.

8.  Normalization is when you divide one attribute by another to get a ratio.  This is normally used for population density.

9.  The problem with a dot density map is if you use it to show population in a polygon it sets the dots randomly and if you change or have to redo it the dot will be placed in a different spot.