SME
Geographic Information Systems (GIS) · Problem type
Point, line or polygon
Use this for “On a county map, should a lake be stored as a point, a line or a polygon?”
Sort
Which geometry fits this feature at this scale?
Tap a card, then tap its group.
Picture the feature on that map: is it a dot, a thin trace or a shape with an inside?
Assumptions
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The map’s scale decides the geometry: a feature too small to show its shape becomes a point or a line.
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A point has a location only, a line has length, and a polygon encloses an area.
Topic check
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