[Qgis-user] QGIS_EPANET - command line tool

[Larry Shaffer]

Hi,

On Fri, Aug 29, 2014 at 11:25 AM, Francesco Liva <fr.liva at gmail.com> wrote:

> Hi Larry
> I am sorry to bother you, but I am having a problem.
>
> The file ~/.qgis2/python/plugins/ghydraulic/GHydraulicsModelMaker.py
>
> I can find it under the WINE File Manager, but I do not know how to open
> under wine.
> In MAC I am not able to find the file. It is not under the WINE FILES.
>

That is the path to the plugin (and sub-file) when installed in QGIS on the
Mac. The ~ is shorthand for your user folder, e.g. /Users/<user> = ~, where
<user> is the short name for your user.

Because the .qgis2 directory starts with a '.' it is hidden in the Mac's
Finder. Use the Go To Folder... command in Finder's Go menu, then type in
~/.qgis2/python/plugins/ghydraulic. Also, with programs like TextWrangler,
you can check the option in the Open/Save dialog to show hidden files.

If QGIS is running while you make the edit to a plugin's file, you will
need to re-launch it.

Regards.

Larry



>
> Best Regards
> Francesco Liva
>
> ______________________________
> 27, Triq Ix-Xatt, Kalkara, Malta
> ☎ +356 99 38 01 68 mobile
> ☎ +356 27 32 76 78 home
>
> Via Tevere 13-A, 00198 Rome
> ☎ +39 06 841 32 64 home
> ☎ +39 333 750 99 83 mobile
>
> 30, Rue V. Contesso, Villefranche/S/M
> ☎ +33 (0) 4 93 80 67 21
>
> Tsintsadze Str.
> Tbilisi  Georgia
> +995 577 17 70 81
>
> Fr.Liva at gmail.com
> ☏ Francesco.Liva
>
>
>
>
>
> On 29 Aug 2014, at 18:15, Larry Shaffer <larrys at dakotacarto.com> wrote:
>
> Hi,
>
> On Fri, Aug 29, 2014 at 7:45 AM, Francesco Liva <fr.liva at gmail.com> wrote:
>
>> 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 ?
>>
>
> I meant open the .py file in a text editor and do a find/replace of all
> instance of the text string.
>
> A good, free (though not open source) code editor is TextWrangler from
> BareBones:
> http://www.barebones.com/products/textwrangler/
>
> Regards,
>
> Larry Shaffer
> Dakota Cartography
> Black Hills, South Dakota
>
>
>
>> Best Regards
>> Francesco Liva
>>
>> ______________________________
>>     27, Triq Ix-Xatt, Kalkara, Malta
>> ☎ +356 99 38 01 68 mobile
>> ☎ +356 27 32 76 78 home
>>
>>     Via Tevere 13-A, 00198 Rome
>> ☎ +39 06 841 32 64 home
>> ☎ +39 333 750 99 83 mobile
>>
>>      30, Rue V. Contesso, Villefranche/S/M
>> ☎ +33 (0) 4 93 80 67 21
>>
>> Tsintsadze Str.
>> Tbilisi  Georgia
>> +995 577 17 70 81
>>
>> Fr.Liva at gmail.com
>> ☏ 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 the*Processing* 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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