From ceb887d75677337c597fd7d96bb19d30e3f18390 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= Date: Fri, 7 May 2021 19:53:05 +0300 Subject: [PATCH] formatting --- IV/mj-msc.tex | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/IV/mj-msc.tex b/IV/mj-msc.tex index 735ceee..484498c 100644 --- a/IV/mj-msc.tex +++ b/IV/mj-msc.tex @@ -226,16 +226,17 @@ straightforward to adjust for different scales. Both algorithms are part of PostGIS, a free-software GIS suite: \begin{itemize} \item {\DP} via - \href{https://postgis.net/docs/ST_Simplify.html}{PostGIS \texttt{ST\_Simplify}}. + \href{https://postgis.net/docs/ST_Simplify.html}{PostGIS \textsc{st\_simplify}}. \item {\VW} via - \href{https://postgis.net/docs/ST_SimplifyVW.html}{PostGIS \texttt{SimplifyVW}}. + \href{https://postgis.net/docs/ST_SimplifyVW.html}{PostGIS + \textsc{st\_simplifyvw}}. \end{itemize} It may be worthwhile to post-process those through a widely available Chaikin's line smoothing algorithm\cite{chaikin1974algorithm} via \href{https://postgis.net/docs/ST_ChaikinSmoothing.html}{PostGIS -\texttt{ST\_ChaikinSmoothing}}. +\textsc{st\_chaikinsmoothing}}. To use in generalization examples, we will use two rivers: Šalčia and Visinčia. These rivers were chosen, because they have both large and small bends, and @@ -277,12 +278,12 @@ simplification for scale 1:\numprint{50000} and especially for \centering \begin{subfigure}[b]{.49\textwidth} \includegraphics[width=\textwidth]{salvis-douglas-64-50k} - \caption{Using {\DP}} + \caption{Using {\DP}.} \end{subfigure} \hfill \begin{subfigure}[b]{.49\textwidth} \includegraphics[width=\textwidth]{salvis-visvalingam-64-50k} - \caption{Using {\VW}} + \caption{Using {\VW}.} \end{subfigure} \caption{Generalized using classical algorithms (1:\numprint{50000}).} \label{fig:salvis-generalized-50k} @@ -299,12 +300,12 @@ figure~\onpage{fig:salvis-generalized-chaikin-50k}. \centering \begin{subfigure}[b]{.49\textwidth} \includegraphics[width=\textwidth]{salvis-douglas-64-chaikin-50k} - \caption{{\DP} + Chaikin's} + \caption{{\DP} + Chaikin's.} \end{subfigure} \hfill \begin{subfigure}[b]{.49\textwidth} \includegraphics[width=\textwidth]{salvis-visvalingam-64-chaikin-50k} - \caption{{\VW} + Chaikin's} + \caption{{\VW} + Chaikin's.} \end{subfigure} \caption{Generalized and smoothened river (1:\numprint{50000}).} \label{fig:salvis-generalized-chaikin-50k} @@ -314,12 +315,12 @@ figure~\onpage{fig:salvis-generalized-chaikin-50k}. \centering \begin{subfigure}[b]{.49\textwidth} \includegraphics[width=\textwidth]{salvis-overlaid-douglas-64-chaikin-50k} - \caption{{\DP} + Chaikin's} + \caption{{\DP} + Chaikin's.} \end{subfigure} \hfill \begin{subfigure}[b]{.49\textwidth} \includegraphics[width=\textwidth]{salvis-overlaid-visvalingam-64-chaikin-50k} - \caption{{\VW} + Chaikin's} + \caption{{\VW} + Chaikin's.} \end{subfigure} \caption{Zoomed-in generalized and smoothened river + original.} \label{fig:salvis-overlaid-generalized-chaikin-50k} @@ -549,7 +550,7 @@ We will explain two instances on when automated tests were very useful during the implementation: \begin{itemize} - \item Created a function \texttt{wm\_exaggeration}, which exaggerates bends + \item Created a function \textsc{wm\_exaggeration}, which exaggerates bends following the rules. It worked well over simple geometries, but, due to a subtle bug, created a self-crossing bend in Visinčia. We copied the offending bend to the automated test suite and fixed the bug. The test @@ -632,7 +633,7 @@ easier than discriminating different line shapes or colors. \subsection{Debugging} -NOTE: this will explain how intermediate debugging tables (\texttt{wm\_debug}) +NOTE: this will explain how intermediate debugging tables (\textsc{wm\_debug}) work. This is not related to the algorithm, but the only the implementation itself (probably should come together with paper's regeneration and unit tests). @@ -641,7 +642,7 @@ tests). NOTE: explain how different river segments are merged into a single line. This is not explained in the {\WM} paper, but is a necessary prerequisite. This is -implemented in \texttt{aggregate-rivers.sql}. +implemented in \textsc{aggregate-rivers.sql}. \subsection{Bend scaling and dimensions} \label{sec:bend-scaling-and-dimensions} @@ -892,7 +893,7 @@ fraction of bends whose sum of inner angles is smaller than $180^\circ$. \subsection{Attributes of a Single Bend} -\textsc{Compactness Index} is "the ratio of the area of the polygon over the +\textsc{compactness index} is "the ratio of the area of the polygon over the circle whose circumference length is the same as the length of the circumference of the polygon" \cite{wang1998line}. Given a bend, its compactness index is calculated as follows: @@ -967,7 +968,7 @@ To find out whether two bends are similar, they are compared by 3 components: \begin{enumerate} \item \textsc{adjusted size} $A_{adj}$ \item \textsc{compactness index} $c$ - \item \textsc{Baseline length} $l$ + \item \textsc{baseline length} $l$ \end{enumerate} Components 1, 2 and 3 represent a point in a 3-dimensional space, and Euclidean @@ -992,7 +993,7 @@ NOTE: not implemented. \subsection{Exaggeration Operator} -NOTE: implemented, explain. Also {\texttt intersection\_tolerance} parameter. +NOTE: implemented, explain. Also {\textsc intersection\_tolerance} parameter. \section{Program Implementation} @@ -1038,10 +1039,10 @@ Like explained in section~\ref{sec:reproducing-the-paper}, illustrations in \inputcode{bash}{extract-and-generate} -\subsection{Function \texttt{ST\_SimplifyWV}} +\subsection{Function \textsc{st\_simplifywv}} \inputcode{postgresql}{wm.sql} -\subsection{Function \texttt{aggregate\_rivers}} +\subsection{Function \textsc{aggregate\_rivers}} \inputcode{postgresql}{aggregate-rivers.sql} \end{appendices}