weeding
the process of removing and discarding unnecessary papers from a file ...
See Also: weeding
[data editing] The process of adding extra points to lines to reduce the sharpness of angles between line segments, resulting in a smoother appearance.
Weed tolerance - Weeding is the process of reducing the number of vertices defining an arc while preserving its general shape. Weed tolerance is the minimum allowable distance between any two vertices along an arc.
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Coordinate thinning involves the weeding or reduction of coordinate pairs, e.g. X and Y, from arcs. This function is often required when data has been captured with too many vertices for the linear features.
When weeding existing arcs, it is the tolerance used by the Douglas-Peucker algorithm. Nodes are always retained.
Accordingly, the methods were as straightforward as possible: raw input data was used without weeding, and mapped to a UTM system of nested cells, so that raster data of differing cellsize would fit together in aggregate when needed.
GIS technology offers many tools for manipulating spatial data and for weeding out unnecessary data. How and how well the software implements these tools is a primary determinant of its ease of use and its cost.
Challenges for Manipulation ...
This could be a temporary transformation for display purposes or a permanent one required for analysis. GIS technology offers many tools for manipulating spatial data and for weeding out unnecessary data.
There are many other examples of data manipulation that are routinely performed in GIS. These include projection changes, data aggregation (for example, to convert sales territories for census building blocks), and generalization (weeding out ...
 See also: Analysis, Raster, GIS, Information, Feature
  
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