stud/II/Referatas/mj-presentacija.tex

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\textcircled{c}~2016. Uber Technologies Inc. All rights reserved.
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%% =============================================================================

\title{
    Kartografinis upių generalizavimas naudojant atvirai prieinamus įrankius
}
\author{Motiejus Jakštys \\
    \includegraphics[height=10em]{../../misc/Logo_vilniaus_universitetas}
}

\date{
    \vspace{10mm}
    Version: \VCDescribe \\ \vspace{4mm}
    Generated At: \GeneratedAt
}

\begin{document}

\AtBeginSection[]
{
  \begin{frame}
    \frametitle{Turinys}
    \tableofcontents[currentsection]
  \end{frame}
}

\begin{frame}
\titlepage
\end{frame}

\section{Problema}

\begin{frame}{Kas yra kartografinė generalizacija?}
    \begin{itemize}[<+->]
        \item Mažinant mastelį reikia mažinti detalumą.
        \item Detalumo mažinimas yra sudėtinga problema.
    \end{itemize}
    \onslide<+->{Paimkime pavyzdį.}
\end{frame}

\begin{frame}{Žeimena ir Lakaja}
    \twocols
    {\includegraphics[width=\textwidth]{zeimena}}
    {\includegraphics[width=\textwidth]{crossing}}
\end{frame}

\begin{frame}{Kas yra prieinama?}
    \pause
    \begin{itemize}[<+->]
        \item Atvira ir galima naudoti:
            \begin{itemize}[<+->]
                \item {\DP}
                \item {\VW}
            \end{itemize}
        \item Komerciniame produkte:
            \begin{itemize}[<+->]
                \item {\WM}
            \end{itemize}
    \end{itemize}
\end{frame}

\begin{frame}{Pritaikant dabartinius algoritmus}
    \pause
    \begin{tabularx}{\textwidth}{ | X | X | }
        Douglas \& Peucker                                                   &
        Visvalingam-Whyatt                                                   \tabularnewline \hline

        \onslide<3->{\center
            \includegraphics[width=.75\linewidth]{overlaid-zeimena-douglas-64}}      &
        \onslide<3->{\center
            \includegraphics[width=.75\linewidth]{overlaid-zeimena-visvalingam-64}}  \tabularnewline \hline

        \onslide<4->{\center
            \includegraphics[width=.75\linewidth]{overlaid-zeimena-douglas-256}}     &
        \onslide<4->{\center
            \includegraphics[width=.75\linewidth]{overlaid-zeimena-visvalingam-256}} \tabularnewline \hline
    \end{tabularx}
\end{frame}

\begin{frame}{Problemos}
    Ne taip, kaip kartografai generalizuotų:
    \pause
    \begin{itemize}[<+->]
        \item Daug "kampų" ir "dantų".
        \item Nedideli vingiai visiškai dingsta.
        \item Upės beveik niekada nebūna tiesios.
    \end{itemize}
\end{frame}


\section{Pasiūlymas}

\begin{frame}{Algoritmas}
    \begin{center}
        \fbox{
            \includegraphics[width=\textwidth]{images/wang1998line.png}
        }
    \end{center}
\end{frame}

\begin{frame}{Pagrindiniai privalumai}
    Sukurtas pagal tai, kaip kartografai generalizuotų:
    \pause
    \begin{itemize}[<+->]
        \item Nesukuriami "kampai" ir "dantys".
        \item Nedideli vingiai "prastinami" į vieną didesnį.
        \item Nesukuria tiesių upių.
    \end{itemize}
\end{frame}

\begin{frame}{Technologijos}
    \begin{itemize}[<+->]
        \item {\texttt qgis.core}
        \item PostGIS 3.x
    \end{itemize}
\end{frame}

\section{Darbo eiga}

\begin{frame}{Darbo eiga}
    \begin{itemize}[<+->]
        \item Parašyti algoritmą.
        \item Aprašyti rezultatus.
    \end{itemize}
\end{frame}

\end{document}