[Qgis-user] QGIS_EPANET - command line tool

[Francesco Liva]

Hi Larry
Thank you for your e-mail. I am trying to change the instances as you mentioned, writing in TERMINAL the:   ~/.qgis2/python/plugins/ghydraulic/GHydraulicsModelMaker.py

But the answer is:

-bash: /Users/francescoliva/.qgis2/python/plugins/ghydraulic/GHydraulicsModelMaker.py: Permission denied
F-Liva-Apple:~ francescoliva$ 

May be I did something wrong, How shall I change all the INSTANCES ?


Best Regards
Francesco Liva

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☏ Francesco.Liva





On 29 Aug 2014, at 15:16, Larry Shaffer <larrys at dakotacarto.com> wrote:

> Hi Francesco,
> 
> I have looked into this and wine is not needed. However, there are still some hurdles. I will list the steps so that it is as straightforward as can be (or as much as it can be from me  :-) :
> 
> 1. Install the GHydraulics plugin. This plugin actually contains command line binaries of epanet for Linux, Win, and Mac; though, it is actually against plugin policy to distribute pre-compiled binaries with plugins through the official QGIS repository. Nonetheless, it is a good thing for you and other Mac users.  :-)
> 
> This means GHydraulics actually works right out-of-the-box. There is a bug in one of the sources, though.
> 
> In ~/.qgis2/python/plugins/ghydraulic/GHydraulicsModelMaker.py:
> 
> Change ALL instances of
>   QgsMapLayerRegistry().instance().mapLayers()
> to
>   QgsMapLayerRegistry.instance().mapLayers()
> 
> I'll be reporting this upstream to http://epanet.de/
> 
> NOTE: some of the reporting from the plugin is actually sent to the Log Messages Panel. Choose 'View -> Panels -> Log Messages' to ensure it is visible.
> 
> See also:
> http://epanet.de/ghydraulics/index.html
> http://sdteffen.blogspot.com/search/label/GHydraulics
> 
> 2. Since you already have an epanet2d command line binary for Mac, you can just use its path for the configuration of the 'qgis_epanet' plugin:
> 
> /Users/<user>/.qgis2/python/plugins/ghydraulic/bin/osx/epanet2d 
> 
> NOTE: replace <user> with your short user name.
> 
> There is some sample data to play with available in the github.com repository:
> https://github.com/Oslandia/qgis-epanet#testing
> 
> I did have an issue when running a simulation, due to a missing Hydraulics file (could not resolve).
> 
> 3. I think I will add epanet command line utilities to OSGeo4Mac, so this is simpler to set up.
> 
> 
> Regards,
> 
> Larry Shaffer
> Dakota Cartography
> Black Hills, South Dakota
> 
> 
> On Wed, Aug 27, 2014 at 10:28 AM, Francesco Liva <fr.liva at gmail.com> wrote:
> Hi Larry
> Yes thankyou
> 
> I have found something else which may be helpful.
> 
> on:  http://www.oslandia.com/qgis-plugin-for-water-management-en.html
> 
> 
> Once the hydraulic model and simulation parameters are loaded in QGIS, the simulation can be launched through theProcessing toolbox. The plugin uses the standalone command line interface of EPANET (CLI) which path needs to be specified in processing Options and configuration.
> The plugin assembles an EPANET input file, runs EPANET and parses its output to generate result layers.
> One interesting aspect with processing modules is that they can be used for chained processing: the user can use other modules to do additional transformations of simulation results, as feeding them into another simulation model.
> 
> Best Regards
> Francesco Liva
> 
> ______________________________
> 27, Triq Ix-Xatt, Kalkara, Malta
> ☎ +356 99 38 01 68 mobile
> ☎ +356 27 32 76 78 home
> 
> 
> 

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