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Обновлять

Я не могу получить градиентный цвет для цвета заголовка с помощью Xbaposter, когда я компилирую с помощью Xelatex, дает только простой цвет, проблема в двух строках headerColorOne=black,и headerColorTwo=lightblue,с определением цвета \definecolor{lightblue}{rgb}{0.145,0.6666,1}. Файл .cls можно загрузить сКТАН. Три строки отмечены как проблемные в MWE:

\documentclass[debug,a0paper,portrait,persian]{xebaposter}

\usepackage{url}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{relsize} % for \smaller
\usepackage{graphicx}
\usepackage{multicol}
\usepackage{xecolor}
\usepackage{wrapfig}
\graphicspath{{images/}}
\usepackage[inline]{enumitem}% for making inline list.
\setlist{noitemsep}% Save space in lists.


\usepackage{ptext}
\usepackage{xepersian}
\settextfont{Yas}

%\usepackage{geometry}
%\geometry{papersize={90cm,170cm},verbose=ture,reset}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%%% Some math symbols used in the text
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % Format 
% \newcommand{\RotUP}[1]{\begin{sideways}#1\end{sideways}}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % Multicol Settings
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \setlength{\columnsep}{0.7em}
% \setlength{\columnseprule}{0mm}

%% Begin of Document
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
%%% Setting User Defined Background %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%if you want to use your preferred background, you should set background=user in poster settings.
\background{
  \begin{tikzpicture}[remember picture,overlay]%
    \fill [yellow!20] {(current page.south east) rectangle (current page.north west)};%
    \draw (current page.center)+(0pt,0pt) node[anchor=center,opacity=.1]
    {\includegraphics[width=1.1\textwidth]{shariflogo}};
  \end{tikzpicture}%
} 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Here starts the poster
%%---------------------------------------------------------------------------
%% Format it to your taste with the options
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
      \definecolor{silver}{cmyk}{0,0,0,0.3}
      \definecolor{yellow}{cmyk}{0,0,0.9,0.0}
      \definecolor{reddishyellow}{cmyk}{0,0.22,1.0,0.0}
      \definecolor{black}{cmyk}{0,0,0.0,1.0}
      \definecolor{darkYellow}{cmyk}{0,0,1.0,0.5}
      \definecolor{darkSilver}{cmyk}{0,0,0,0.1}

      \definecolor{lightyellow}{cmyk}{0,0,0.3,0.0}
      \definecolor{lighteryellow}{cmyk}{0,0,0.1,0.0}
      \definecolor{lighteryellow}{cmyk}{0,0,0.1,0.0}
      \definecolor{lightestyellow}{cmyk}{0,0,0.05,0.0}



%\definecolor{lightblue}{rgb}{0.145,0.6666,1} % Problem
      \begin{poster}%
      % Poster Options
      {
      eyecatcher=true,
      % Color style
      bgColorOne=lightyellow,
      bgColorTwo=yellow,
      borderColor=reddishyellow,
      headerColorOne=yellow,%headerColorOne=black, %  Problem
      headerColorTwo=reddishyellow,%headerColorTwo=lightblue, %  Problem
%      headerFontColor=silver,
      boxColorOne=red,
      boxColorTwo=lighteryellow,
      % Format of textbox
      textborder=faded,
      % Format of text header
      headerborder=closed,
      headerheight=0.1\textheight,
      headershape=roundedleft,
      headershade=plain,
%      headerfont=\Large, %Sans Serif
      boxshade=shadetb,%plain,
      background=user,%plain,
      linewidth=2pt,
      grid=false,
      }
 % Eye Catcher
 {
      \includegraphics[height=0.07\textheight]{logo}
 }
 % Title
 {عنوان پوستر عنوان پوستر عنوان پوستر عنوان پوستر عنوان پوستر عنوان پوستر عنوان پوستر 
}
 % Authors
 {\large نام۱ نام خانوادگی۱, نام۳ نام خانوادگی۲, نام۳ نام خانوادگی۳ 
 \\%[1em]
 {\normalsize\texttt{\lr{[email protected], [email protected], [email protected]}}}}
 % University logo
 {
\begin{tabular}{r}
    \includegraphics[height=0.07 \textheight]{shariflogo}\\
\end{tabular}
 }

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Now define the boxes that make up the poster
%%%---------------------------------------------------------------------------
%%% Each box has a name and can be placed absolutely or relatively.
%%% The only inconvenience is that you can only specify a relative position 
%%% towards an already declared box. So if you have a box attached to the 
%%% bottom, one to the top and a third one which should be inbetween, you 
%%% have to specify the top and bottom boxes before you specify the middle 
%%% box.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=introduction,column=0,row=0]{\textxecolor{red}{مقدمه}}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
برای تست بسته سعی می‌کنم که یک خط فارسی بنگارم\LTRfootnote{test} تا نتیجه آن را در این پوستر مشاهد کنم\footnote{تست پانویسی}.
\end{posterbox}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=phase2,column=1,span=1]{فاز دو: پردازش}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{wrapfigure}{r}{.6\textwidth}
%\centering
%  \vspace{-10pt}
%{
\includegraphics[scale=.5]{fig3}
%}
%  \vspace{-20pt}
\end{wrapfigure}

\ptext[2]

محاسبات لازم:
\begin{align*}
f_1 &= \frac{HXY-HXY1}{max\{HX,HY\}}\\
f_2 &= \sqrt{1-\exp\{-2(HXY2-HXY)\}} 
\end{align*}

{\scriptsize 
\centerline{\begin{minipage}{.95\textwidth}
C(i, j) is an element of GLC matrix and N is number of gray-levels.
\end{minipage}}
\vspace{-.5mm}
$$\begin{array}{l}

\displaystyle C_x(i) =\sum_{j=1}^N C(i,j), \quad C_y(i)=\sum_{i=1}^N C(i,j)\\
\displaystyle  HXY = -\sum_{i=1}^N\sum_{j=1}^N C(i,j) \log\{C(i,j)\}\\
\displaystyle  HXY1 = -\sum_{i=1}^N\sum_{j=1}^N C(i,j) \log\{C_x(i)\times C_y(j)\}\\
\displaystyle  HXY2 = -\sum_{i=1}^N\sum_{j=1}^N C_x(i)\times C_y(j) \log\{C_x(i)\times C_y(j)\}\\
\end{array}$$
}
\end{posterbox}

 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=phase3,column=2,span=1,row=0]{استخراج ویژگی‌های: دوتایی}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ptext[7]
\centerline{\includegraphics[scale=1.1,height=7cm]{fig4}}
\end{posterbox}

 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=phase4,column=2,span=1,below=phase3]{جداسازی}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ptext[6]
\end{posterbox}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=results,column=1,span=2,below=phase2]{نتایج}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{multicols}{2}
    \centerline{\includegraphics[scale=.7]{fig6}}
    \ptext[2-3]

    \centerline{\includegraphics[scale=.7]{fig5}}
\end{multicols}
\end{posterbox}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=imagedataset,column=0,span=1,below=introduction]{پایگاه داده تصاویر}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{itemize}
    \item ۱۱۰ تصویر سالم
    \item ۶۶ تصویر ناسالم
    \item ۶۰ درصد تصاویر برای آموزش به کار برده شده‌اند و مابقی برای تست درستی الگوریتم.
    \item وبسایت \url{http://www.med.harvard.edu/AANLIB/home.html}
\end{itemize}
\end{posterbox}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=phase1,column=0,span=1,below=imagedataset]{فاز یک{:} پیش‌پردازش}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ptext[12]
\begin{enumerate}
    \item پشت زمینه
    \item زنگ روشن
    \item بخش‌های نامرتبط
\end{enumerate}
\ptext[14]

برای هر $\lambda \geq 0$ ورودی نیمه‌مثبت $x\in R^m$ صحیح به‌دست می‌آید البته اگر برای $\lambda X$، $\lambda Y$ ($\lambda >0$) آنگاه ($\lambda y$ و $\lambda x$)

\ptext[16-17]
\end{posterbox}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=adhoc,column=0,span=1,below=phase1]{همینطوری}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\textxecolor{red}
{برای پر کردن فضا استفاده شده است. برای پر کردن فضا استفاده شده است. برای پر کردن فضا استفاده شده است. 
برای پر کردن فضا استفاده شده است. برای پر کردن فضا استفاده شده است. برای پر کردن فضا استفاده شده است. 
سلام}
\end{posterbox}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=references,column=1,span=2,below=results]{منابع}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
     \smaller
%     \bibliographystyle{ieee}
     \renewcommand{\section}[2]{\vskip 0.05em}
       \begin{thebibliography}{1}\itemsep=-0.01em
       \setlength{\baselineskip}{0.4em}
       \bibitem{}
       محمود سیستانی, سیدجواد علوی, رضا حسینی
    , ''بررسی پوستر در فضای فارسی``
    , کنفرانس سالانه کامپیوتر, صفحات 868--871, بهار ۱۳۹۲.
       \end{thebibliography}
\end{posterbox}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=ack,column=0,span=2,below=references]{قدردانی}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
با تشکر از دکتر \lr{Brian Amberg}؛ این کار فارسی‌سازی پوستری است که توسط ایشان طراحی شده است\footnote{\url{http://www.brian-amberg.de/uni/poster/}}.
\end{posterbox}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{posterbox}[name=ack,column=2,span=1,below=references]{خالی}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی 
فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی فضای خالی 
\end{posterbox}%%
\end{poster}

\end{document}

решение1

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Начиная с версии 3.1.3, tikzтеперь поддерживаются оттенки CMYK, поэтому больше нет необходимости загружать pgf-cmykshadings. (Ошибка пока не исправлена.)

Существует конфликт между pgfpagesпакетом (загруженным [xe]baposter), pgfsys-dvipdfmxдрайвером (используемым xelatex) и шейдингами. Я не знаю точно, что происходит, но в конечном итоге шейдинги не работают с xelatex. Я отправил отчет об ошибке наhttps://github.com/pgf-tikz/pgf/issues/520.

В любом случае, это работает, если мы указываем, что нам нужен драйвер pgfsys-dvipdfm, хотя это может иметь и другие побочные эффекты.

Также в настройках вашего постера есть headershade=plain, который отключает затенение в заголовке вообще. Поэтому вы хотите удалить эту опцию.

И как упоминалось в комментариях, если вы собираетесь использовать затенение, (xe)baposterрекомендуется использовать пакет pgf-cmykshadings, чтобы не получить неожиданных несоответствий цветов. В вашем конкретном примере этого не произойдет, но всегда есть потенциал. Это потому, что все сплошные цвета будут выводиться в CMYK, но все градиенты будут выводиться в RGB. Это происходит независимо от того, как вы определяете цвета в своем документе. Если вы используете цвет в своем градиенте, который вы также используете в другом месте как сплошной цвет, они будут выглядеть по-другому. В свете этого я переопределил ваш lightblueцвет в CMYK, чтобы он выглядел на экране примерно так же, как ваше определение RGB.

Все это можно сделать, поместив это перед вашим \documentclass:

\def\pgfsysdriver{pgfsys-dvipdfm.def}
\RequirePackage[cmyk]{xcolor}
\RequirePackage{pgf-cmykshadings}

Кстати, в будущем было бы проще, если бы вы сделали свой пример более минимальным. Это поможет нам быстрее сузить круг проблем.

МВЭ

\def\pgfsysdriver{pgfsys-dvipdfm.def}
\RequirePackage[cmyk]{xcolor}
\RequirePackage{pgf-cmykshadings}
\documentclass[a0paper,portrait,persian]{xebaposter}

\usepackage{ptext}
\usepackage{xepersian}
\settextfont{Yas}

\definecolor{reddishyellow}{cmyk}{0,0.22,1.0,0.0}
\definecolor{lightblue}{cmyk}{0.68,0.25,0.0,0.0}
%\definecolor{lightblue}{rgb}{0.145,0.6666,1}

\begin{document}
\begin{poster}{
    borderColor=reddishyellow,
    headerColorOne=black,
    headerColorTwo=lightblue,
    headerborder=closed,
    headershape=roundedleft,
    headerfont=\Large,
    background=none
  }{}{}{}

  \begin{posterbox}{جداسازی}
    \ptext[6]
  \end{posterbox}

\end{poster}

\end{document}

выход

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