Re: Regarding use of GR Framework in Ruby Plotting Library

[Prasun Anand]

Hi,

Joesf, Thanks for your reply. Pranav would be working on a Ruby
wrapper for GR for this GSoC.

Pranav, I believe that you can add missing documentation(if any) to GR
and also come up with a Ruby wrapper by looking at the Python and
Julia wrapper implementation and tutorials.

Regards,
Prasun

On Thu, May 17, 2018 at 3:13 PM, Pranav Garg <prana...@gmail.com> wrote:
> Greetings Josef,
> Thank you very much for your reply!
>
> I went through the page and tried to replicate the tutorial The example
> there does not seems to create a render.
>
>
> I am looking for a way where I can specify the backend raster explicitly.
> For example I would like to save the plot in a jpg file rather than
> displaying it on a GUI. Going through the documentation I think that it can
> be done via specifying workstation.
> Am I correct? If so then can you please explain what the connection
> parameter in the function call is ? And how can I save the render? I am not
> able to find any example for the same. Can you please provide me with a
> small code or just drawing the axes and saving them in a jpg file?
>
> One of my aims is to create a language independent plotting library that can
> easily be bridged to any language. So that everyone won't have to reinvent
> the wheel. I am very excited to see that this is what GR framework is
> achieving.
>
> I would like to discuss the possibility of creating a Ruby wrapper around GR
> framework. How do you suggest we should proceed with it?
>
> Regards
> Pranav
>
>
>
> On Thu, May 17, 2018 at 2:41 PM, Heinen, Josef <j.he...@fz-juelich.de>
> wrote:
>> Dear Pranav Garg,
>>
>>
>> On 16. May 2018, at 15:46, Pranav Garg <prana...@gmail.com> wrote:
>>
>> Greetings!
>> I hope that you are doing well.
>>
>> I am Pranav , I am working with Ruby Science Foundation this summer to
>> create a plotting Library for Ruby.
>> We decided to create a library inspired by Matplotlib architecture and
>> wanted to use GR Framework as the Renderer in C++. However, I was
>> facing certain difficulties in doing so as GR Framework itself is a
>> dynamic plotting framework and not a raster graphics library. The
>> major problem that I am facing over here is the creation of graphs on
>> an image (JPG/PNG) rather than the GDS GUI in C++, Can you help me out
>> and provide me with a sample code for the same?
>>
>>
>> There is a very simple example here: http://gr-framework.org/c.html
>>
>> Do you think that it is feasible to employ GR Framework as a Backend?
>>
>>
>> I think so. You can use GR both in interactive environments - I’d prefer
>> Qt
>> - or as a renderer for graphics files like SVG, PDF, PostScript or PNG.
>>
>> Another alternative that I see here is the creation of direct bindings
>> from GR Framework to Ruby. I would like to know your thoughts about
>> the same and whether or not you will be available to guide me through
>> it as GR Framework is still in development.
>>
>>
>> This is an option, too. GR is currently used as the main backend for a
>> Julia
>> plotting package (Plots.jl). GR is still in development and we are
>> currently
>> implementing a subsystem to establish more interactivity. But this is
>> still
>> WIP. The goal is to reduce the effort to integrate GR into other
>> languages.
>> Right now, we provide wrappers for Python and Julia. I wouldn't see any
>> problems to create a Ruby wrapper, but we have never used it in our
>> software
>> environment.
>>
>> Regards,
>> Josef Heinen
>>
>