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Hello,
I have the surface of the road and the centerline of it. Now I want to set up a rule: "the centerline must be within the surface". How can i could create topology between them?
I have read all the rule of ArcGIS topology, but I have not found the one suitable for that yet. Could you help me?
Many thanks!
Centerline and Surface
Started by
hocgis
, Jul 22 2009 10:15 PM
1 reply to this topic
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#2
Posted 23 July 2009 - 09:36 AM
ceicher
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Hi
I do not think that "Line must be completely within Polygon" is an available topology rule in ArcGIS.
I know that you can use ArcObjects to check for this.
See the Interface.Method IRelationalOperator.Crosses
http://edndoc.esri.c...tor_Crosses.htm
Test each street centerline/polygon pair. If IRelationalOperator.Crosses is True, then the centerline goes outside the polygon.
If this doesn't work, ITopologicalOperator has more functionality.
http://edndoc.esri.c...calOperator.htm
If you decide to do this in ArcObjects, the ESRI Support forums are good place to ask more detailed questions.
http://support.esri.com/
Good luck!
-Cory
I do not think that "Line must be completely within Polygon" is an available topology rule in ArcGIS.
I know that you can use ArcObjects to check for this.
See the Interface.Method IRelationalOperator.Crosses
http://edndoc.esri.c...tor_Crosses.htm
Test each street centerline/polygon pair. If IRelationalOperator.Crosses is True, then the centerline goes outside the polygon.
If this doesn't work, ITopologicalOperator has more functionality.
http://edndoc.esri.c...calOperator.htm
If you decide to do this in ArcObjects, the ESRI Support forums are good place to ask more detailed questions.
http://support.esri.com/
Good luck!
-Cory
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