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Ian Corder

04/06/2016 16:19:02

Hi there,

I'm trying to use an existing model's network of c2000 nodes in Flood Modeller Free, by cutting out all nodes that are not river sections in order to bring the count down to <250 nodes. However, when I delete the necessary nodes and then try to save the amended network, a dialogue box pops up reading 'This feature is not available in the free version of Flood Modeller'. Any ideas where I am going wrong and how I can get around this?

Thanks, Ian

HERUKFAD_KT

06/06/2016 08:36:33

Morning Ian, 

 

You can only edit and save up to a certain number of nodes (i believe its up 250 nodes) with the free version of flood modeller. You have to have Flood Modeller Pro to save networks with c2000 nodes

 

 

Konrad

Flood Modeller Support

06/06/2016 08:45:55

Hi Ian,

I have tried similar to you and it is working OK for me. Have you checked in the General properties (at the very top of the Network list) that it does contain 250 nodes (or fewer) - it lists the node count in there?

NB Node count = number of distinct node labels

Regards,

Konrad

Bob

Flood Modeller Support

07/06/2016 08:50:07

Hi Ian

Another option that should work is if you start a new (empty) 1D network. Then right-click on the Network table and select File > Import Model Nodes. You can then browse to your large network and open the list of nodes in a new window. You can then select a subset of nodes (i.e. less than 250) from the list and drag them across into your empty network. Obviously a little more time consuming to extract the required nodes, but it should definitely work in Free mode (and hopefully a single reach should all appear next to each other in the list, making them easier to select).

Hope this helps.

Regards

Bob

Ian Corder

07/06/2016 22:26:55

Thanks a lot for your help all! I've tried doing it as Bob suggested and it's working fine. I think I was confused about the distinction between nodes and cross-sections. When I import a certain number of cross-sections, boundaries, junctions etc (channel icons?), the node count under General Properties is much higher. What's the difference between nodes and cross-sections?

Bob

Flood Modeller Support

10/06/2016 10:01:11

Hi Ian

Glad to hear we were able to solve your problem. To answer your question I would say that a node in a 1D network is anywhere where calculations will be performed at runtime (and thus outputs will be generated). A 1D network is constructed from different types of hydraulic units, one of which is a river cross section, others examples are bridges, weirs, other structures, boundaries, etc. Each unit will be represented by one or more nodes within the network. So a cross section is a defined by a single node and a bridge will have an upstream and downstream node (although remember that within the network a downstream node of one unit can be the upstream node of the next).

Hope this answers your question.

Regards

Bob

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