有没有办法在“图形环境”中配置标题？

Question

有没有办法调整figure environment，以便它能用一些文本作为标题的前缀，而不是Figure后面跟着自动编号？为了便于讨论，有 (1) 两种类型的标题前缀，Diagram和Problem，(2) 每种都有自己的自动编号。所以有两个问题。

\documentclass{article}
% RN. 8 Feb 2019
%=======================
\usepackage{xparse}
\usepackage{xskak}

\begin{document}

\begin{figure}
    \centering
    \notationon 
    \chessboard[showmover=false,setfen={rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1}] 
    \notationoff
    \caption{Starting Position}
    \label{}    
\end{figure}

\begin{figure}
    \centering
    \notationon 
    \chessboard[showmover=false,setfen={4k3/8/4b3/r7/7p/8/8/2K1Q2n b - - 0 1}]  
    \notationoff
    \caption{}
    \label{}    
\end{figure}

\begin{figure}
    \centering
    \notationon 
    \chessboard[showmover=false,setfen={2K4Q/5R2/8/3b1N2/5kN1/8/P7/b7 b - - 0 1}]   
    \notationoff
    \caption{}
    \label{}    
\end{figure}

\end{document}

Answer 1

可能是类似这个宏的东西？

\documentclass{article}
\usepackage{graphicx}
\newcounter{example1}
\setcounter{example1}{1}

\newcounter{example2}
\setcounter{example2}{1}
\makeatletter
\newcommand\diagram[4]{%
   \protect\includegraphics[height=#2 in, keepaspectratio]{#3}\vskip \flushleft{Diagram \@nameuse{the#1}: #4.\vskip\stepcounter{example1}}}
\makeatother
\makeatletter
\newcommand\Problem[4]{%
    \protect\includegraphics[height=#2 in, keepaspectratio]{#3}\vskip \flushleft{Problem \@nameuse{the#1}: #4.\vskip\stepcounter{example2}}}
\makeatother
\begin{document}
\noindent \diagram{example1}{2}{example-image-a}{A caption}
\diagram{example1}{2}{example-image-b}{A caption}
\Problem{example2}{2}{example-image-c}{A caption}
\Problem{example2}{2}{example-image-duck}{Duck never gives a problem}
\end{document}

这将给你：