\chapter{Advanced Data Types for Two-Dimensional Geometry} 
\label{Advanced Data Types for Two-Dimensional Geometry}

\input extract/d2_dictionary.tex
\newpage
\input extract/point_set.tex
\newpage
\input extract/interval_set.tex
\newpage
\input extract/segment_set.tex
\newpage
\input extract/subdivision.tex
\newpage

