I have a certain network which I imported into sewer gems using model builder which was exported from civil 3d
But the issue comes is that the mainline is not getting connected to the manholes even after I establish spatial connectivity.
Please help what can be done so that manholes get connected. I am attaching the said file for reference.
Hello Rahul,
It looks like you sent two shapefiles with polylines. I was able to create a model with these while creating manholes. All of the conduits were imported okay, but some manholes were overlaying conduits instead of being attached to them. I used the batch pipe split tool to make sure that the the manholes were attached.
If you have a model with manholes already present, I will need that file. If there is a shapefile with node data, I will need to that shapefile to test this further.
Regards,
Scott
the files also have manholes data like elevations and everything integrated in it and also I cant load diameters of conduits how can I do that please suggest as shape file has different layers for various diameters.
and regarding poly lines issue splitting the pipes wont affect the positioning of the manholes?
There were two shapefiles provided. They were both of polylines, meaning they can only be added as conduits. You will need to make sure to set the spatial connectivity section of ModelBuilder so that you create end nodes at the end of the pipes, as well as a tolerance. I checked the preview available for the shapefiles and there was no information related to conduit diameter or elevation.
For the property connection, I mention it as on option for some of the elements. There are conduits at a tee to other conduits. You may be able to model these conduits as laterals. The end nodes for this lateral can be a property connection and tap, the latter of which can be associated with the conduit. The link provided has some information on this. You would need to use this.
Just to add - the "establish connectivity using spatial data" option will only connect the ends of polylines to nodes. If you have cases where multiple pipes should connect at a junction but there is no polyline endpoint at those locations, you may need to use Network Navigator to review the imported data and use batch pipe split to create junctions at the connection points and connect the pipes. See:
Using batch pipe split to fix nodes that overlay a pipe instead of connecting to it
Preparing GIS data for use in the hydraulics and hydrology products
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
Scott Kampa said:the preview available for the shapefiles and there was no information related to conduit diameter or elevation.
when i add shape file using model builder and using spatial connectivity the manholes have these elevations are they not visible on your end? I am asking because I am not sure if these elevations are entered or software itself assigned
As mentioned by my colleagues above, it may be possible that polylines don't have end points, at those points manholes will not be created on the conduits, rather just placed, for this purpose batch pipe split tool is used to connect the manholes to the conduits i.e. establish the connection using specified tolerance in the "establish connectivity using spatial data" option.
For elevations, when imported this shapefiles into a new model there isn't data specified about conduit diameters, to import the diameters, you need to have separate field in the shapefile which you can map to diameter field in Modelbuilder connection. For that purpose, please see the above provided link, which i am specifying below as well.
About elevations being imported, i do see that for some manholes ground elevations are imported and invert levels, however ground elevations and invert elevations imported both are same, this information seems to be imbedded in the shapefile itself, could you please check with your GIS data provider about this?
Sushma Choure
Bentley Technical Suppport