Lab 3: Managing Vector Data
By Omar Qursha
Chapter 5 Teaching Tutorial Questions
1)
Why is it okay to use a space in a map name but not in a folder or feature class name?
Map names can have spaces since the software recognizes spaces as characters. In folder
and feature class names a space can corrupt the file, making it unreadable.
2)
Which data types in Table 5.1 are NOT found in mgisdata?
Coverages, database connections, layer files, tables, TINs, CAD drawings
3)
Notice that if the term
layer
is used in the instructions, you are directed to use the
Contents pane. If the term
feature class
is used, you are directed to the Catalog pane.
Explain why.
Layers are managed in the Contents pane, while feature classes are managed in the
Catalog pane. Each element belongs in its respective pane since they must be managed
separately.
4)
Why do the districts and state boundary layers have different boundaries? Why is the
state boundary so different from the basemap boundary?
They come from different sources that use different coordinate systems therefore the scale is
different.
5)
What would happen if you clipped the njdistricts layer with the njbound_gen layer
instead of using the Feature Class to Feature Class tool? Why would the result be a
problem?
The original boundary would be shifted into a random place and would be inaccurate as a result.
6)
Where did the 1995 date for the dataset come from?
The date came from the metadata of the dataset we downloaded for arc gis pro.
7)
Submit a screenshot of your ArcGIS window at the end of the tutorial, showing the map
frame with the Geology_Dissolve layer symbolized by unique values (based on
