FOR557 – Quiz X
5/28/2016
Not turned in
Sample quiz. Do at home, answers on web Thursday
Consider the polygons to the right and answer
questions 1 through 4 (4 pts each.) A and B are
polygons in layer 1 and C and D are polygons in
layer 2. Label resulting polys with the attributes.
The only user attributes are A, B, C, and D.
Layer 1
A
B
C
Layer 2
D
UNION of Layers 1 and 2
INTERSECTION of Layers 1 and 2 in that order
IDENTITY of Layers 1 and 2 where 1is the input
and 2 is the IDENTITY layer
UPDATE of Layers 1 and 2 where 1is the input and
2 is the UPDATE layer
CLIP of layer 1 by layer 2
ERASE of layer 2 by layer 1
D:\291183961.doc
5/28/2016
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