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Motiejus Jakštys 2021-05-18 14:23:16 +03:00
parent aef2a20de4
commit 8385c3fd40
2 changed files with 31 additions and 22 deletions

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@ -182,7 +182,6 @@ $(eval $(call wm_vwdp50kblack,wm75,,grpk10,1))
$(eval $(call wm_vwdp50kblack,wm75,,grpk10,1,tr)) $(eval $(call wm_vwdp50kblack,wm75,,grpk10,1,tr))
$(eval $(call wm_vwdp50kblack,wm75,,grpk10,1,tl)) $(eval $(call wm_vwdp50kblack,wm75,,grpk10,1,tl))
salvis-25k_1SELECT = wm_visuals where name='salvis-grpk10' salvis-25k_1SELECT = wm_visuals where name='salvis-grpk10'
salvis-25k_WIDTHDIV = 1 salvis-25k_WIDTHDIV = 1

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@ -1392,21 +1392,21 @@ Our generalized results are viewed from the following angles:
\subsubsection{Medium-scale (1:\numprint{50000})} \subsubsection{Medium-scale (1:\numprint{50000})}
\label{sec:analyzed-medium-scale} \label{sec:analyzed-medium-scale}
\begin{figure}[h!] \begin{figure}[h]
\centering \centering
\includegraphics[width=\textwidth]{salvis-wm75--grpk10-1x50k} \includegraphics[width=\textwidth]{salvis-wm75--grpk10-1x50k}
\caption{2x zoomed-in {\WM} for 1:\numprint{50000}.} \caption{2x zoomed-in {\WM} for 1:\numprint{50000}.}
\label{fig:salvis-wm75--grpk10-1x50k} \label{fig:salvis-wm75--grpk10-1x50k}
\end{figure} \end{figure}
\begin{figure}[h!] \begin{figure}[h]
\centering \centering
\includegraphics[width=\textwidth]{salvis-wm75--grpk10-1x50ktl} \includegraphics[width=\textwidth]{salvis-wm75--grpk10-1x50ktl}
\caption{Left part of Figure~\ref{fig:salvis-wm75--grpk10-1x50k}.} \caption{Left part of Figure~\ref{fig:salvis-wm75--grpk10-1x50k}.}
\label{fig:salvis-wm75--grpk10-1x50ktl} \label{fig:salvis-wm75--grpk10-1x50ktl}
\end{figure} \end{figure}
\begin{figure}[h!] \begin{figure}[h]
\centering \centering
\includegraphics[width=\textwidth]{salvis-wm75--grpk10-1x50ktr} \includegraphics[width=\textwidth]{salvis-wm75--grpk10-1x50ktr}
\caption{Top--right part of Figure~\ref{fig:salvis-wm75--grpk10-1x50k}.} \caption{Top--right part of Figure~\ref{fig:salvis-wm75--grpk10-1x50k}.}
@ -1429,6 +1429,8 @@ simplification in the next section.
To sum up, mid-scale simplification works well for some geometries, but creates To sum up, mid-scale simplification works well for some geometries, but creates
sharp edges for others. sharp edges for others.
\clearpage
\subsubsection{Large-scale (1:\numprint{250000})} \subsubsection{Large-scale (1:\numprint{250000})}
\label{sec:analyzed-large-scale} \label{sec:analyzed-large-scale}
@ -1450,7 +1452,7 @@ simplification and overlays the original.
\includegraphics[width=.2\textwidth]{salvis-wm220-10x} \includegraphics[width=.2\textwidth]{salvis-wm220-10x}
\caption{Simplified.} \caption{Simplified.}
\end{subfigure} \end{subfigure}
\caption{GDB10LT simplified with {\WM} for 1:\numprint{250000}.} \caption{GRPK10 simplified with {\WM} for 1:\numprint{250000}.}
\label{fig:salvis-wm220-10x} \label{fig:salvis-wm220-10x}
\end{figure} \end{figure}
@ -1465,6 +1467,8 @@ A conglomeration of bends is visible, especially in top--right side of the
illustration. We assume this was caused by two bends significantly exaggerated, illustration. We assume this was caused by two bends significantly exaggerated,
leaving no space to exaggerate for those between the two. leaving no space to exaggerate for those between the two.
\clearpage
\subsubsection{Discussion} \subsubsection{Discussion}
For mid-size scales of 1:\numprint{50000}, the implemented algorithm works well For mid-size scales of 1:\numprint{50000}, the implemented algorithm works well
@ -1487,13 +1491,13 @@ future research and improvement:
\subsubsection{Background} \subsubsection{Background}
There are a few datasets used in this comparison: GDB10LT, GRPK50 and There are a few datasets used in this comparison: GRPK10, GRPK50 and
GRPK250. They are vector datasets, which include rivers. They can be GRPK250. They are vector datasets, which include rivers. They can be
downloaded for free from \cite{nzt}. Here are the meanings of the codenames: downloaded for free from \cite{nzt}. Here are the meanings of the codenames:
\begin{description} \begin{description}
\item[GDB10LT] is dataset of highest detail. Suited for maps of scale \item[GRPK10] is dataset of highest detail. Suited for maps of scale
1:\numprint{10000}. 1:\numprint{10000}.
\item[GRPK50] is suited for maps of scale 1:\numprint{50000}. \item[GRPK50] is suited for maps of scale 1:\numprint{50000}.
@ -1503,17 +1507,19 @@ downloaded for free from \cite{nzt}. Here are the meanings of the codenames:
\end{description} \end{description}
During the analysis, we ran {\WM} on GDB10LT for 2 destination scales: During the analysis, we ran {\WM} on GRPK10 for 2 destination scales:
1:\numprint{50000} and 1:\numprint{250000}.\footnote{parameter calculation is 1:\numprint{50000} and 1:\numprint{250000}.\footnote{How parameters are
detailed in section~\ref{sec:bend-scaling-and-dimensions}.} This section calculated is detailed in section~\ref{sec:bend-scaling-and-dimensions}.} This
compares the resulting {\WM}--generalized rivers to GRPK50 and GRPK250. section compares the resulting {\WM}--generalized rivers to GRPK50 and GRPK250.
\clearpage
\subsubsection{Medium-scale (1:\numprint{50000})} \subsubsection{Medium-scale (1:\numprint{50000})}
For our research location, the national dataset GDB10LT is almost equivalent to For our research location, the national dataset GRPK10 is almost equivalent to
GRPK50, with a few nuances. Figure~\ref{fig:salvis-wm75-grpk50-grpk10-1x50k} GRPK50, with a few nuances. Figure~\ref{fig:salvis-wm75-grpk50-grpk10-1x50k}
illustrates all three shapes: GRPK50, {\WM}--simplified GDB10LT, and the illustrates all three shapes: GRPK50, {\WM}--simplified GRPK10, and the
original GDB10LT. original GRPK10.
\begin{figure}[h!] \begin{figure}[h!]
\centering \centering
@ -1536,6 +1542,8 @@ Figure~\ref{fig:salvis-wm75-grpk50-grpk10-1x50ktr} illustrates two small bends
that have been removed in GRPK50, but have been exaggerated by our that have been removed in GRPK50, but have been exaggerated by our
implementation. implementation.
\clearpage
\subsubsection{Large-scale (1:\numprint{250000})} \subsubsection{Large-scale (1:\numprint{250000})}
\label{sec:national-large-scale} \label{sec:national-large-scale}
@ -1557,13 +1565,12 @@ desired in section~\ref{sec:future-suggestions}.
\begin{subfigure}[b]{.49\textwidth} \begin{subfigure}[b]{.49\textwidth}
\centering \centering
\includegraphics[width=\textwidth]{salvis-wm220} \includegraphics[width=\textwidth]{salvis-wm220}
\caption{{\WM}-simplified GDB10LT.} \caption{{\WM}-simplified GRPK10.}
\end{subfigure} \end{subfigure}
\caption{GRPK250 and {\WM}--simplified GDB10LT.} \caption{GRPK250 and {\WM}--simplified GRPK10.}
\label{fig:salvis-wm220} \label{fig:salvis-wm220}
\end{figure} \end{figure}
\subsection{Comparison with {\DP} and {\VW}} \subsection{Comparison with {\DP} and {\VW}}
It is time to visually compare our implementation with the classical It is time to visually compare our implementation with the classical
@ -1573,30 +1580,31 @@ in this section to 1:\numprint{50000}.
\begin{figure}[h!] \begin{figure}[h!]
\includegraphics[width=\textwidth]{salvis-wm75-dp64-grpk10-1x50k} \includegraphics[width=\textwidth]{salvis-wm75-dp64-grpk10-1x50k}
\caption{}
\label{fig:salvis-wm75-dp64-grpk10-1x50k} \label{fig:salvis-wm75-dp64-grpk10-1x50k}
\end{figure} \end{figure}
\begin{figure}[h!] \begin{figure}[h!]
\includegraphics[width=\textwidth]{salvis-wm75-dpchaikin64-grpk10-1x50k} \includegraphics[width=\textwidth]{salvis-wm75-dpchaikin64-grpk10-1x50k}
\caption{}
\label{fig:salvis-wm75-dpchaikin64-grpk10-1x50k} \label{fig:salvis-wm75-dpchaikin64-grpk10-1x50k}
\end{figure} \end{figure}
\clearpage
\begin{figure}[h!] \begin{figure}[h!]
\includegraphics[width=\textwidth]{salvis-wm75-vw64-grpk10-1x50k} \includegraphics[width=\textwidth]{salvis-wm75-vw64-grpk10-1x50k}
\caption{}
\label{fig:salvis-wm75-vw64-grpk10-1x50k} \label{fig:salvis-wm75-vw64-grpk10-1x50k}
\end{figure} \end{figure}
\begin{figure}[h!] \begin{figure}[h!]
\includegraphics[width=\textwidth]{salvis-wm75-vwchaikin64-grpk10-1x50k} \includegraphics[width=\textwidth]{salvis-wm75-vwchaikin64-grpk10-1x50k}
\caption{}
\label{fig:salvis-wm75-vwchaikin64-grpk10-1x50k} \label{fig:salvis-wm75-vwchaikin64-grpk10-1x50k}
\end{figure} \end{figure}
\clearpage
\subsection{Testing Results Online} \subsection{Testing Results Online}
\label{sec:testing-results-online} \label{sec:testing-results-online}
@ -1624,6 +1632,8 @@ produces poorly simplified results for some geometries.
\label{fig:openmap-wm-bad} \label{fig:openmap-wm-bad}
\end{figure} \end{figure}
\clearpage
\section{Conclusions} \section{Conclusions}
\label{sec:conclusions} \label{sec:conclusions}