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Add second year

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Aindréas Ó hAodha
2023-12-07 01:19:12 +00:00
parent 3291e5c79e
commit 3d12031ab8
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second/semester1/CT255/Assessment/CT255-Assignment-2/latex/style/btree.sty Normal file
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%% Last Modified: Thu Oct 18 18:26:25 2007.
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{style/btree}
\typeout{Document Style `weiw_BTree - Support drawing B+-Tree (ver 0.999)}
\RequirePackage{tikz}
\RequirePackage{ifthen}
% use libraries
\usetikzlibrary{arrows,shapes,decorations,matrix}
%% global declaration
\tikzstyle{btreeptr} = [draw, semithick, minimum height=2em]
\tikzstyle{btreeval} = [draw, semithick, minimum size=2em]
\tikzstyle{btreevale} = [draw,semithick, minimum size=2em]
\tikzstyle{btlink} = [draw, semithick, ->, >=triangle 45]
%% macro
%% helper macros
\newcommand{\suppressemptystr}[1]{% leave blank for entries in leaf nodes
\ifthenelse{\equal{#1}{}}%
{%
\relax%
}%
% Else
{%
#1\textsuperscript{*}%
}%
}%
\newcommand{\xyshift}[3]{% help to place the nodes
\begin{scope}[xshift=#1, yshift=#2]
#3
\end{scope}%
}
%% Common btree macros
\newcommand{\btreelink}[2]{% #1: src node; #2: dest node;
\draw[btlink] ([yshift=3pt] #1.south) -- (#2-b.north);
}
\newcommand{\btreelinknorth}[2]{% #1: src node; #2: dest node;
\draw[btlink] ([yshift=3pt] #1.south) -- (#2.north);
}
\newcommand{\btreetriangle}[2]{% #1: node name; #2 text inside
\node[anchor=north, regular polygon, regular polygon sides=3, draw] (#1) {#2};
}
%%======================================================================
%% btree with capacity = 4
\newcommand{\btreeinodefour}[5]{%
\matrix [ampersand replacement=\&] (#1)
{
\node[btreeptr] (#1-1) {\vphantom{1}}; \& \node[btreeval] (#1-a) {#2}; \&
\node[btreeptr] (#1-2) {\vphantom{1}}; \& \node[btreeval] (#1-b) {#3}; \&
\node[btreeptr] (#1-3) {\vphantom{1}}; \& \node[btreeval] (#1-c) {#4}; \&
\node[btreeptr] (#1-4) {\vphantom{1}}; \& \node[btreeval] (#1-d) {#5}; \&
\node[btreeptr] (#1-5) {\vphantom{1}}; \\
};
}
\newcommand{\btreelnodefour}[5]{%
\matrix [ampersand replacement=\&, outer sep=0pt, matrix anchor=north] (#1)
{
\node[btreevale] (#1-a) {\suppressemptystr{#2}}; \&
\node[btreevale] (#1-b) {\suppressemptystr{#3}}; \&
\node[btreevale] (#1-c) {\suppressemptystr{#4}}; \&
\node[btreevale] (#1-d) {\suppressemptystr{#5}}; \\
};
}
%%======================================================================
%% btree with capacity = 3
\newcommand{\btreeinodethree}[4]{%
\matrix [ampersand replacement=\&] (#1)
{
\node[btreeptr] (#1-1) {\vphantom{1}}; \& \node[btreeval] (#1-a) {#2}; \&
\node[btreeptr] (#1-2) {\vphantom{1}}; \& \node[btreeval] (#1-b) {#3}; \&
\node[btreeptr] (#1-3) {\vphantom{1}}; \& \node[btreeval] (#1-c) {#4}; \&
\node[btreeptr] (#1-4) {\vphantom{1}}; \\
};
}
\newcommand{\btreelnodethree}[4]{%
\matrix [ampersand replacement=\&, outer sep=0pt, matrix anchor=north] (#1)
{
\node[btreevale] (#1-a) {\suppressemptystr{#2}}; \&
\node[btreevale] (#1-b) {\suppressemptystr{#3}}; \&
\node[btreevale] (#1-c) {\suppressemptystr{#4}}; \\
};
}
%%======================================================================
%% btree with capacity = 2
\newcommand{\btreeinodetwo}[4]{%
\matrix [ampersand replacement=\&] (#1)
{
\node[btreeptr] (#1-1) {\vphantom{1}}; \& \node[btreeval] (#1-a) {#2}; \&
\node[btreeptr] (#1-2) {\vphantom{1}}; \& \node[btreeval] (#1-b) {#3}; \&
\node[btreeptr] (#1-3) {\vphantom{1}}; \\
};
}
\newcommand{\btreelnodetwo}[3]{%
\matrix [ampersand replacement=\&, outer sep=0pt, matrix anchor=north] (#1)
{
\node[btreevale] (#1-a) {\suppressemptystr{#2}}; \&
\node[btreevale] (#1-b) {\suppressemptystr{#3}}; \\
};
}
%%======================================================================
%% simple example
% \begin{center}
% \scalebox{0.7}{
% \begin{tikzpicture}
% %
% \btreeinodefour{root}{13}{17}{24}{30};
% \xyshift{-40mm}{-20mm}{\btreelnodefour{n1}{2}{3}{5}{7}}
% \xyshift{-0mm}{-20mm}{\btreelnodefour{n2}{14}{16}{}{}}
% \xyshift{40mm}{-20mm}{\btreelnodefour{n3}{19}{20}{22}{}}
% \xyshift{80mm}{-20mm}{\btreelnodefour{n4}{24}{27}{29}{}}
% \xyshift{120mm}{-20mm}{\btreelnodefour{n5}{33}{34}{38}{39}}
% %
% \foreach \x in {1,2,...,5} { \btreelink{root-\x}{n\x} }
% \end{tikzpicture}
% }
% \end{center}