GIS Lab 2 Getting to Know ArcGIS Chapter 5 & 6

GIS Lab 2
Chapter 5 & 6
Map Symbology
Getting to Know ArcGIS
NR 143
L. Morrissey
Lab Process
1.
Read about lab on web page
- shows final output/product due
2.
Make new folder in PC C:Temp folder
- include GTKArcGIS Chapter data & your results
3.
Load lab data from data CD into PC lab folder
4.
Work through lab following instructions in lab book
5.
Show output to TA in lab or upload at WebCT
6.
Save data to Zoo using mapped drive (OPTIONAL)
Nine Images on One Layout!
Show to TA for full credit during lab
Setup for Layout
Each inset map image is one data frame (not data layer!)
Layout Toolbar
Zoom
In
Fixed Zoom Out
(from center)
Pan
Zoom
100%
Zoom
Out
Go forward
to extent Change
template
Zoom
Whole Page
Fixed Zoom In
(from center)
Go back
to extent
Zoom
Control
ArcMap Map Document (.mxd)
„
Pointer file (filename.mxd)
– Keeps track of:
ƒ Files for layers in ArcMap table of contents
ƒ How each data layer is displayed, legends
ƒ one layout (per mxd file)
„
Does not save actual data!
– You need to save mxd file and data in lab folder!!!
ArcMap
File > Save As …
filename.mxd
Sharing Data PC to PC
(Fixing broken ! links)
right click layer > Data > Set Data Source
Fixing Broken Links
(ArcGIS can’t find my data)
„
„
„
Missing layers…deleted, moved, renamed
Red exclamation point ! next to data layer in ArcMap TOC
Fix procedure #1:
– In ArcMap, right-click on “broken” layer > Properties
– Select the Source tab
– Click on the Set Data Source …button and find layer
– Click OK
FYI
Sharing GIS Data
(Fix #2 Best)
FYI
„
Pathnames
– Absolute or full pathnames
ƒ e.g. C:Temp\morrissey\data\usa\counties.shp
ƒ requires everyone to have same file structure
on their computers (bad assumption)
– Relative pathnames
ƒ e.g. \usa\counties.shp
ƒ easier to move data between computers
ƒ opt for relative pathnames when sharing
– e.g. between lab PC and Zoo!
Changing Absolute or Relative
Pathnames
1.
2.
3.
4.
In ArcMap, File > Map Properties
Click on the Data Source Options …button
Click on the radio button to set Store Full Path
Names or Store Relative Path Names
Click OK
FYI
End of Lab
„
Show TA final analyses for credit or upload snagged
image to WebCT
„
Have TA show you how to:
– save your lab folder to Zoo and reopen Zoo .mxd file
to make sure all is well (i.e. data is not lost or
corrupted)
– Reset data source for missing data
– Set relative path names