Sliver polygons can also be created between features within the same map. Typically, map features are separately digitized. For example, the GIS (or CAD) operator will trace the boundary of each state with a digitizing tablet or mouse.
The act of deleting unwanted sliver polygons.
slope
The incline, or steepness, of a surface. Slope can be measured in degrees from horizontal (0-90), or percent slope (which is the rise divided by the run, multiplied by 100).
the small, invalid polygons are called spurious or sliver polygons and can be a major problem in polygon overlay
spurious polygons arise when two lines are overlaid which are actually slightly different versions of the same line ...
6. What is Sliver Polygon? Describe how to create sliver polygons and using what function to delete them.
7. Describe what are slope and aspect, how to measure them.
Note: please see Michael L. Hauschild's page for the last three parts.
[data models] A small, narrow, polygon feature that appears along the borders of polygons following the overlay of two or more geographic datasets. Sliver polygons may indicate topology problems with the source polygon features, ...
Coincident features (shared arcs) are difficult to locate; they may appear to have one arc between two features, but it turns out to be two arcs, one on top of the other. This should be corrected because it can result in sliver polygons (small gaps ...
normally in polygon overlay, they will not match precisely and small sliver polygons will be created. Conflation is concerned with the process for removing these slivers and reconciling the common boundary.
 See also: Sliver, Sliver polygon, Information, Class, Analysis
  
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