Assignment 3 – Marty Ennis

&nbs= p; Projections

I’ve been trying to insert the map of the US w/ c= apital cities shown and named, but I am unable to do it. Maybe further into the assignment, I’ll find how to copy from ArcMap and pas= te into Word.

I measured the distance between = Olympia and Augusta in decimal degrees. It says the segment is 37.34 and the total is 37.33 decimal degrees. Should they be the same since there’s only one segment?

Next, I got into the Layers, changed the name and chan= ged the display to miles. I didn’t see another place to make it measure miles. But it didn’t change the display units. I even asked to see it in centimeters, and no change. What did I do wrong now?

Changing from a geographic project= ion.

I did it and got an error message about potential prob= lems. I clicked yes. When I measure, I get the same values as before (the map loo= ks the same as before) and they’re in decimal degrees.

Now for the attribute table. It took a while to figure it was the Cities layer and not the United States layer that had one. New Mexic= o has the highest elevation – 6989.&nb= sp; What does FIPS mean?

I’ve tried to find the biggest capital city by s= orting and I don’t believe the numbers. I got it. First I have to highlight = the column I want to sort on by ordinary clicking, then I = rt click. So the largest capital city is Phoenix at 983403= ?

-99 tells the computer something – either that t= here is no data or that it is 0 and later it will be bad to try to divide by 0 – but negative numbers are often a flag to the software.

Shapefile. My map doesn’t show the states, and I can̵= 7;t make it do so. I clicked the Select Features tool and clicked NM and got several cyan shapes. I exported it as a layer.

Map projection of the world.