Changeset 2861
- Timestamp:
- May 12, 2006, 4:36:52 PM (18 years ago)
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documentation/user_manual/anuga_user_manual.tex
r2859 r2861 286 286 very simple case, not directly related to the example at hand. 287 287 Figure \ref{fig:simplemesh} represents a very simple mesh comprising 288 just fivepoints and three triangles. (To avoid confusion, we should288 just 11 points and three triangles. (To avoid confusion, we should 289 289 emphasise that this particular mesh is \emph{not} generated by 290 290 \code{rectangular}---and is not even rectangular in nature. ) 291 291 292 \begin{figure}[hbt] 293 294 \includegraphics[width=95mm, height=95mm]{triangularmesh} 292 \begin{center} 293 \begin{figure}[h] 294 295 \includegraphics[width=95mm, height=95mm]{triangularmesh.eps} 295 296 296 297 \caption{A simple mesh} 297 298 \label{fig:simplemesh} 298 299 \end{figure} 300 \end{center} 299 301 300 302 The variables \code{points}, \code{vertices} and \code{boundary} … … 305 307 %\medskip \code{points} 306 308 307 \begin{tabular}{|c|cc|} \hline 308 $index$ & \code{x} & \code{y}\\ \hline 309 0 & 0.5 & 0.5\\ 310 1 & 0.7 & 1\\ 311 2 & 0 & 2\\ 312 3 & 1 & 0\\ 313 4 & 1.2 & 2\\ \hline 309 \begin{center} 310 \begin{tabular}[t]{|c|cc|} \hline 311 $index$ & $x$ & $y$\\ \hline 312 0 & 1 & 1\\ 313 1 & 4 & 2\\ 314 2 & 8 & 1\\ 315 3 & 1 & 3\\ 316 4 & 5 & 5\\ 317 5 & 8 & 6\\ 318 6 & 11 & 5\\ 319 7 & 3 & 6\\ 320 8 & 1 & 8\\ 321 9 & 4 & 9\\ 322 10 & 10 & 7\\ \hline 314 323 \end{tabular} 324 \end{center} 315 325 316 326 The list \code{vertices} specifies the triangles that make up the … … 324 334 %\code{vertices} \nopagebreak 325 335 336 \begin{center} 326 337 \begin{tabular}{|c|ccc|} \hline 327 338 $index$ & \multicolumn{3}{c|}{\code{vertices}}\\ \hline 328 0 & 1 & 2 & 0\\ 329 1 & 1 & 0 & 3\\ 330 2 & 4 & 1 & 3\\ \hline 339 0 & 0 & 1 & 3\\ 340 1 & 1 & 2 & 4\\ 341 2 & 2 & 5 & 4\\ 342 3 & 2 & 6 & 5\\ 343 4 & 4 & 5 & 9\\ 344 5 & 4 & 9 & 7\\ 345 6 & 3 & 4 & 7\\ 346 7 & 7 & 9 & 8\\ 347 8 & 1 & 4 & 3\\ 348 9 & 5 & 10 & 9\\ \hline 331 349 \end{tabular} 350 \end{center} 332 351 333 352 Finally, the variable \code{boundary} identifies the boundary 334 triangles and associates a tag with each , according to this scheme:353 triangles and associates a tag with each. 335 354 336 355
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