# Julia stand-alone app?
**URL:** https://discourse.julialang.org/t/julia-stand-alone-app/20277
**Category:** General Usage
**Tags:** question
**Created:** [January 30, 2019, 1:52pm UTC](https://discourse.julialang.org/t/julia-stand-alone-app/20277 "2019-01-30T13:52:15Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@bsnyh](https://discourse.julialang.org/u/bsnyh)
#### Post date: [January 30, 2019, 1:52pm UTC](https://discourse.julialang.org/t/julia-stand-alone-app/20277/1 "2019-01-30T13:52:15Z")
I was thinking to develop some app to model the movement of cars on a road network. What I’d like to d is, I have several buildings and several cars on the map and I can use mouse to drag and drop the cars to certain locations of the map. There are buttons nearby the map and I can click the button for model controlling and parameters input. So two questions.
1: How to model the underlying road network? I can either create the map and the underlying graph from the scratch or, is there some good ‘wheels’ that I can use?
2: Is Julia a good language for this (I hope so). Or shall I choose the other language, like Java, or Python?
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### Author:  [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)
#### Post date: [January 30, 2019, 2:18pm UTC](https://discourse.julialang.org/t/julia-stand-alone-app/20277/2 "2019-01-30T14:18:54Z")
The question is too vague to answer 1. There are some nice graph packages in Julia, see [here](https://github.com/JuliaGraphs).
Regarding 2, Julia may not be ideal (or even functional) for app deployment at this point. But if you want to do the computations on a server, it could make a nice backend language.
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### Author:  [@lwabeke](https://discourse.julialang.org/u/lwabeke)
#### Post date: [January 30, 2019, 2:20pm UTC](https://discourse.julialang.org/t/julia-stand-alone-app/20277/3 "2019-01-30T14:20:24Z")
If you want realistic maps, some links which might be useful as a starting point:
> [@Package for map visualizations?](https://discourse.julialang.org/t/package-for-map-visualizations/1875/8):
>
> @amellnik you are right on about this. plotly.js can do it, so PlotlyJS.jl can also. [here](http://spencerlyon.com/PlotlyJS.jl/examples/maps/) are a couple examples from the PlotlyJS.jl docs
> **[GitHub - tedsteiner/OpenStreetMap.jl: Julia OpenStreetMap Package](https://github.com/tedsteiner/OpenStreetMap.jl)**
>
> Julia OpenStreetMap Package. Contribute to tedsteiner/OpenStreetMap.jl development by creating an account on GitHub.
But this doesn’t seem to have been kept updated through the last version Julia version upgrades.
Everything at:
> **[JuliaGeo](https://github.com/JuliaGeo)**
>
> Geospatial packages for Julia. JuliaGeo has 31 repositories available. Follow their code on GitHub.
However a lot of what you seem to be describing is the GUI.
Julia is good at the number crunching to make the modelling work. While Julia is good at displaying data, I have thus far not found very good ways for user inputs. Some non-Julia GUI front-end linked to a Julia back-end might do the trick.
Maybe see here for some ideas for GUI options:
> [@Trying to find GUI options for Julia (windows + linux)](https://discourse.julialang.org/t/trying-to-find-gui-options-for-julia-windows-linux/14575/6):
>
> The warning is expected. There’s been a couple of fixes very recently, so you could try master (]dev Gtk), otherwise you can open an issue in the repo. Everything running without error but nothing showing is definitely strange.