Using Geometric Networks with Python and Geoprocessing Services
Using Geometric Networks with Python and Geoprocessing Services David Crawford – Geodatabase Product Engineer
GN Geoprocessing Tools Introduced in ArcGIS 10.1
•
1. Create Geometric Network
•
2. Add Edge-Edge Connectivity Rule
•
3. Add Edge-Junction Connectivity Rule
•
4. Set Flow Direction
•
5. Remove Connectivity Rule
•
6. Remove Empty Feature Class
•
7. Trace Geometric Network
Create Geometric Network
•
Has settings for all of the options available in the wizard.
Add Edge-Edge and Edge-Junction Connectivity Rules
•
Provides a quick tool to add connectivity rules to your network without opening the Geometric Network’s property page
•
If created using python, the script can be saved and re-used if you ever needed to re-create your network
Set Flow Direction
•
Behaves the same as the UI ‘Set Flow Direction’ button on the Utility Network Analyst toolbar.
•
Allows the setting of flow based on digitized direction
Remove Connectivity Rules
Allows modifying of the acceptable forms of connectivity through scripting.
Remove Empty Feature Class
•
Allows the removal of a Network Feature Class from a GN
•
Is a useful cleanup tool, if you have several ‘retired’ classes in your GN.
•
Prevents re-creating the GN to remove classes from it.
Tracing Demos
GN Geoprocessing Tools Introduced in ArcGIS 10.1
•
1. Create Geometric Network
•
2. Add Edge-Edge Connectivity Rule
•
3. Add Edge-Junction Connectivity Rule
•
4. Set Flow Direction
•
5. Remove Connectivity Rule
•
6. Remove Empty Feature Class
•
7. Trace Geometric Network
Create Geometric Network
•
Has settings for all of the options available in the wizard.
Add Edge-Edge and Edge-Junction Connectivity Rules
•
Provides a quick tool to add connectivity rules to your network without opening the Geometric Network’s property page
•
If created using python, the script can be saved and re-used if you ever needed to re-create your network
Set Flow Direction
•
Behaves the same as the UI ‘Set Flow Direction’ button on the Utility Network Analyst toolbar.
•
Allows the setting of flow based on digitized direction
Remove Connectivity Rules
Allows modifying of the acceptable forms of connectivity through scripting.
Remove Empty Feature Class
•
Allows the removal of a Network Feature Class from a GN
•
Is a useful cleanup tool, if you have several ‘retired’ classes in your GN.
•
Prevents re-creating the GN to remove classes from it.
Tracing Demos
