Vrftjkry

I have asked before, but I never got the answer I was looking for. (old question is here: Defining a new figure environment)

As the title suggests I'm looking for a way to make 2 images stand side by side by defining a new ENVIRONMENT, not a command.

The example is the same as the old question: How can I define a new environment, that makes 2 images stand side by side

This is what I have tried without it working.

documentclass[a4paper,11pt,fleqn,twoside,openright]{memoir}

usepackage{caption}

usepackage{graphicx,caption}

usepackage{float}



newenvironment{sidebyside}[6]{

    begin{figure}[H]

        centering

            begin{subfigure}[b]{0.49textwidth}

            includegraphics[width=textwidth]{Lists/Images/#1}

            caption{#2}

        end{subfigure}

        %

        begin{subfigure}[b]{0.49textwidth}

            includegraphics[width=textwidth]{Lists/Images/#3}

            caption{#4}

        end{subfigure}

        caption{protectraggedright #5}

        label{#6}

    end{figure}

}

The sole reason I want it as an environment, is because I'm working with people who doesn't understand LaTeX coding, so I need to make it as easy for them as possible.

Thank you, in advance.

/Lau

Edit for clarification:

When the user types "begin{sidebyside}" and presses enter, (s)he should see the following code pop up:

begin{sidebyside}

    begin{figure}[H]

        centering

            begin{subfigure}[b]{0.49textwidth}

            includegraphics{}

            caption{}

        end{subfigure}

        %

        begin{subfigure}[b]{0.49textwidth}

            includegraphics{}

            caption{}

        end{subfigure}

        caption{protectraggedright }

        label{}

    end{figure}

end{sidebyside}

Edit 2:

Apparantly my question is still hard to understand. So I've recorded what I'd want to happen here: https://youtu.be/vEBT6Z5TwJQ

Here's an environment-based solution.

documentclass[a4paper,11pt,fleqn,twoside,openright]{memoir}

usepackage[demo]{graphicx} % remove 'demo' option in real document

usepackage{subcaption,float}



newenvironment{sidebyside}[6]{%

   begin{figure}[H]

   begin{subfigure}[b]{0.49textwidth}

      includegraphics[width=textwidth]{Lists/Images/#1}

      caption{#2}

   end{subfigure}hspace{fill}%

   begin{subfigure}[b]{0.49textwidth}

      includegraphics[width=textwidth]{Lists/Images/#3}

      caption{#4}

   end{subfigure}

   caption{protectraggedright #5}

   label{#6}}{%

   end{figure}}



begin{document}

setcounter{chapter}{2} % just for this example

begin{sidebyside}%

  {pic1}{Caption of first subfigure}%

  {pic2}{Caption of second subfigure}%

  {Overall caption}{fig:x}

end{sidebyside}

end{document}

That said, I agree with @TeXnician that a macro-based solution seems far more natural and at least as straightforward to implement. First the command definition:

newcommand{sidebyside}[6]{%

   begin{figure}[H]

   begin{subfigure}[b]{0.49textwidth}

      includegraphics[width=textwidth]{Lists/Images/#1}

      caption{#2}

   end{subfigure}hspace{fill}%

   begin{subfigure}[b]{0.49textwidth}

      includegraphics[width=textwidth]{Lists/Images/#3}

      caption{#4}

   end{subfigure}

   caption{protectraggedright #5}

   label{#6}

   end{figure}}

Second, a way to call the command:

sidebyside{pic1}{Caption of first subfigure}%

           {pic2}{Caption of second subfigure}%

           {Overall caption}{fig:x}