Vector topology: Difference between revisions
Jump to navigation
Jump to search
mNo edit summary |
(link to progman7) |
||
| Line 18: | Line 18: | ||
* [[Vector topology cleaning]] | * [[Vector topology cleaning]] | ||
* see also [http://grass.osgeo.org/programming7/vectorlib.html#vlibTopoManagement Vector library topology management] background | |||
[[Category:FAQ]] | [[Category:FAQ]] | ||
[[Category:Topology]] | [[Category:Topology]] | ||
[[Category:Vector]] | [[Category:Vector]] | ||
Revision as of 09:43, 5 March 2014
Q: What is the difference between pseudo-topology and real topology?
A: The differences are listed in the table below.
Basically a full topological format knows what 'network' is so that every node is directly related with his degree of connection. Boundary lines dividing areas are simply arcs connected together, there is no need to duplicate any basic geometric feature (vertex or arc), even if it belongs to more than one geometric entity.
pseudo-topological * full-topological
-----------------------------------------*-------------------------------------
*
adjacent area boundaries are duplicated * a single boundary can share several
* areas
*
*
See also
- Vector topology cleaning
- see also Vector library topology management background