Friday, August 9, 2013

How to Import Subcatchments from GIS into InfoSWMM

How to Import Subcatchments from GIS into InfoSWMM


Step 1:  Add your shapefile using  the Add Data command.
Step 2:  Your imported shape file has no subcatchment data before we initialize the project.
Step 3:  Add your subcatchment data using the GIS Exchange Cluster Import
Step 4:  Now you have the Subcatchments in the DB Tables and can now calculate the area.
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Step 1:  Add your shapefile using  the Add Data command.


Step 2:  Your imported shape file has no subcatchment data


Step 3:  Add your subcatchment data using the GIS Exchange Cluster Import

  

Step 4:  Now you have the Subcatchments in the DB Tables and can now calculate the area.
We still have to enter 1/10000 to get the right units for subcatchment area using the Auto Area Calculation under Tools preferences.  You first import the shape file and then you turn on Auto Area Calculation, enter a value for the Area Scaling Factor and then use the tool Utilities, Update DB from Map, All Subcatchment to get the Subcatchment Area in hectares.






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