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Diffstat (limited to 'extern/qhull/src/qdelaun.c')
| -rw-r--r-- | extern/qhull/src/qdelaun.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/extern/qhull/src/qdelaun.c b/extern/qhull/src/qdelaun.c deleted file mode 100644 index 0e49d9c381e..00000000000 --- a/extern/qhull/src/qdelaun.c +++ /dev/null @@ -1,323 +0,0 @@ -/*<html><pre> -<a href="qh-qhull.htm" - >-------------------------------</a><a name="TOP">-</a> - - qdelaun.c - compute Delaunay triangulations and furthest-point Delaunay - triangulations using qhull - - see unix.c for full interface - - copyright (c) 1993-2002, The Geometry Center -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include <math.h> -#include "qhull.h" -#include "mem.h" -#include "qset.h" - -#if __MWERKS__ && __POWERPC__ -#include <SIOUX.h> -#include <Files.h> -#include <console.h> -#include <Desk.h> - -#elif __cplusplus -extern "C" { - int isatty (int); -} - -#elif _MSC_VER -#include <io.h> -#define isatty _isatty - -#else -int isatty (int); /* returns 1 if stdin is a tty - if "Undefined symbol" this can be deleted along with call in main() */ -#endif - -/*-<a href="qh-qhull.htm#TOC" - >-------------------------------</a><a name="prompt">-</a> - - qh_prompt - long prompt for qhull - - notes: - restricted version of qhull.c - - see: - concise prompt below -*/ - -/* duplicated in qdelau_f.htm and qdelaun.htm */ -char hidden_options[]=" d n v H U Qb QB Qc Qf Qg Qi Qm Qr QR Qv Qx TR E V FC Fi Fo Ft Fp FV Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 "; - -char qh_prompta[]= "\n\ -qdelaunay- compute the Delaunay triangulation\n\ - http://www.geom.umn.edu/software/qhull %s\n\ -\n\ -input (stdin):\n\ - first lines: dimension and number of points (or vice-versa).\n\ - other lines: point coordinates, best if one point per line\n\ - comments: start with a non-numeric character\n\ -\n\ -options:\n\ - Qu - compute furthest-site Delaunay triangulation\n\ - Qt - triangulated output\n\ - QJ - joggled input instead of merged facets\n\ -\n\ -Qhull control options:\n\ - QJn - randomly joggle input in range [-n,n]\n\ -%s%s%s%s"; /* split up qh_prompt for Visual C++ */ -char qh_promptb[]= "\ - Qs - search all points for the initial simplex\n\ - Qz - add point-at-infinity to Delaunay triangulation\n\ - QGn - print Delaunay region if visible from point n, -n if not\n\ - QVn - print Delaunay regions that include point n, -n if not\n\ -\n\ -"; -char qh_promptc[]= "\ -Trace options:\n\ - T4 - trace at level n, 4=all, 5=mem/gauss, -1= events\n\ - Tc - check frequently during execution\n\ - Ts - print statistics\n\ - Tv - verify result: structure, convexity, and in-circle test\n\ - Tz - send all output to stdout\n\ - TFn - report summary when n or more facets created\n\ - TI file - input data from file, no spaces or single quotes\n\ - TO file - output results to file, may be enclosed in single quotes\n\ - TPn - turn on tracing when point n added to hull\n\ - TMn - turn on tracing at merge n\n\ - TWn - trace merge facets when width > n\n\ - TVn - stop qhull after adding point n, -n for before (see TCn)\n\ - TCn - stop qhull after building cone for point n (see TVn)\n\ -\n\ -Precision options:\n\ - Cn - radius of centrum (roundoff added). Merge facets if non-convex\n\ - An - cosine of maximum angle. Merge facets if cosine > n or non-convex\n\ - C-0 roundoff, A-0.99/C-0.01 pre-merge, A0.99/C0.01 post-merge\n\ - Rn - randomly perturb computations by a factor of [1-n,1+n]\n\ - Wn - min facet width for outside point (before roundoff)\n\ -\n\ -Output formats (may be combined; if none, produces a summary to stdout):\n\ - f - facet dump\n\ - G - Geomview output (see below)\n\ - i - vertices incident to each Delaunay region\n\ - m - Mathematica output (2-d only, lifted to a paraboloid)\n\ - o - OFF format (dim, points, and facets as a paraboloid)\n\ - p - point coordinates (lifted to a paraboloid)\n\ - s - summary (stderr)\n\ -\n\ -"; -char qh_promptd[]= "\ -More formats:\n\ - Fa - area for each Delaunay region\n\ - FA - compute total area for option 's'\n\ - Fc - count plus coincident points for each Delaunay region\n\ - Fd - use cdd format for input (homogeneous with offset first)\n\ - FD - use cdd format for numeric output (offset first)\n\ - FF - facet dump without ridges\n\ - FI - ID of each Delaunay region\n\ - Fm - merge count for each Delaunay region (511 max)\n\ - Fn - count plus neighboring region for each Delaunay region\n\ - FN - count plus neighboring region for each point\n\ - FO - options and precision constants\n\ - FP - nearest point and distance for each coincident point\n\ - FQ - command used for qdelaunay\n\ - Fs - summary: #int (8), dimension, #points, tot vertices, tot facets,\n\ - for output: #vertices, #Delaunay regions,\n\ - #coincident points, #non-simplicial regions\n\ - #real (2), max outer plane, min vertex\n\ - FS - sizes: #int (0)\n\ - #real(2) tot area, 0\n\ - Fv - count plus vertices for each Delaunay region\n\ - Fx - extreme points of Delaunay triangulation (on convex hull)\n\ -\n\ -"; -char qh_prompte[]= "\ -Geomview options (2-d and 3-d)\n\ - Ga - all points as dots\n\ - Gp - coplanar points and vertices as radii\n\ - Gv - vertices as spheres\n\ - Gi - inner planes only\n\ - Gn - no planes\n\ - Go - outer planes only\n\ - Gc - centrums\n\ - Gh - hyperplane intersections\n\ - Gr - ridges\n\ - GDn - drop dimension n in 3-d and 4-d output\n\ - Gt - transparent outer ridges to view 3-d Delaunay\n\ -\n\ -Print options:\n\ - PAn - keep n largest Delaunay regions by area\n\ - Pdk:n - drop facet if normal[k] <= n (default 0.0)\n\ - PDk:n - drop facet if normal[k] >= n\n\ - Pg - print good Delaunay regions (needs 'QGn' or 'QVn')\n\ - PFn - keep Delaunay regions whose area is at least n\n\ - PG - print neighbors of good regions (needs 'QGn' or 'QVn')\n\ - PMn - keep n Delaunay regions with most merges\n\ - Po - force output. If error, output neighborhood of facet\n\ - Pp - do not report precision problems\n\ -\n\ - . - list of all options\n\ - - - one line descriptions of all options\n\ -"; -/* for opts, don't assign 'e' or 'E' to a flag (already used for exponent) */ - -/*-<a href="qh-qhull.htm#TOC" - >-------------------------------</a><a name="prompt2">-</a> - - qh_prompt2 - synopsis for qhull -*/ -char qh_prompt2[]= "\n\ -qdelaunay- compute the Delaunay triangulation. Qhull %s\n\ - input (stdin): dimension, number of points, point coordinates\n\ - comments start with a non-numeric character\n\ -\n\ -options (qdelaun.htm):\n\ - Qu - furthest-site Delaunay triangulation\n\ - Qt - triangulated output\n\ - QJ - joggled input instead of merged facets\n\ - Tv - verify result: structure, convexity, and in-circle test\n\ - . - concise list of all options\n\ - - - one-line description of all options\n\ -\n\ -output options (subset):\n\ - s - summary of results (default)\n\ - i - vertices incident to each Delaunay region\n\ - Fx - extreme points (vertices of the convex hull)\n\ - o - OFF format (shows the points lifted to a paraboloid)\n\ - G - Geomview output (2-d and 3-d points lifted to a paraboloid)\n\ - m - Mathematica output (2-d inputs lifted to a paraboloid)\n\ - QVn - print Delaunay regions that include point n, -n if not\n\ - TO file- output results to file, may be enclosed in single quotes\n\ -\n\ -examples:\n\ - rbox c P0 D2 | qdelaunay s o rbox c P0 D2 | qdelaunay i\n\ - rbox c P0 D2 | qdelaunay Fv rbox c P0 D2 | qdelaunay s Qu Fv\n\ - rbox c G1 d D2 | qdelaunay s i rbox c G1 d D2 | qdelaunay Qt\n\ - rbox M3,4 z 100 D2 | qdelaunay s rbox M3,4 z 100 D2 | qdelaunay s Qt\n\ -\n\ -"; -/* for opts, don't assign 'e' or 'E' to a flag (already used for exponent) */ - -/*-<a href="qh-qhull.htm#TOC" - >-------------------------------</a><a name="prompt3">-</a> - - qh_prompt3 - concise prompt for qhull -*/ -char qh_prompt3[]= "\n\ -Qhull %s.\n\ -Except for 'F.' and 'PG', upper-case options take an argument.\n\ -\n\ - incidences mathematica OFF_format points_lifted summary\n\ - facet_dump\n\ -\n\ - Farea FArea_total Fcoincident Fd_cdd_in FD_cdd_out\n\ - FF_dump_xridge FIDs Fmerges Fneighbors FNeigh_vertex\n\ - FOptions FPoint_near FQdelaun Fsummary FSize\n\ - Fvertices Fxtremes\n\ -\n\ - Gvertices Gpoints Gall_points Gno_planes Ginner\n\ - Gcentrums Ghyperplanes Gridges Gouter GDrop_dim\n\ - Gtransparent\n\ -\n\ - PArea_keep Pdrop d0:0D0 Pgood PFacet_area_keep\n\ - PGood_neighbors PMerge_keep Poutput_forced Pprecision_not\n\ -\n\ - QGood_point QJoggle Qsearch_1st Qtriangulate QupperDelaunay\n\ - QVertex_good Qzinfinite\n\ -\n\ - T4_trace Tcheck_often Tstatistics Tverify Tz_stdout\n\ - TFacet_log TInput_file TPoint_trace TMerge_trace TOutput_file\n\ - TWide_trace TVertex_stop TCone_stop\n\ -\n\ - Angle_max Centrum_size Random_dist Wide_outside\n\ -"; - -/*-<a href="qh-qhull.htm#TOC" - >-------------------------------</a><a name="main">-</a> - - main( argc, argv ) - processes the command line, calls qhull() to do the work, and exits - - design: - initializes data structures - reads points - finishes initialization - computes convex hull and other structures - checks the result - writes the output - frees memory -*/ -int main(int argc, char *argv[]) { - int curlong, totlong; /* used !qh_NOmem */ - int exitcode, numpoints, dim; - coordT *points; - boolT ismalloc; - -#if __MWERKS__ && __POWERPC__ - char inBuf[BUFSIZ], outBuf[BUFSIZ], errBuf[BUFSIZ]; - SIOUXSettings.showstatusline= false; - SIOUXSettings.tabspaces= 1; - SIOUXSettings.rows= 40; - if (setvbuf (stdin, inBuf, _IOFBF, sizeof(inBuf)) < 0 /* w/o, SIOUX I/O is slow*/ - || setvbuf (stdout, outBuf, _IOFBF, sizeof(outBuf)) < 0 - || (stdout != stderr && setvbuf (stderr, errBuf, _IOFBF, sizeof(errBuf)) < 0)) - fprintf (stderr, "qhull internal warning (main): could not change stdio to fully buffered.\n"); - argc= ccommand(&argv); -#endif - - if ((argc == 1) && isatty( 0 /*stdin*/)) { - fprintf(stdout, qh_prompt2, qh_VERSION); - exit(qh_ERRnone); - } - if (argc > 1 && *argv[1] == '-' && !*(argv[1]+1)) { - fprintf(stdout, qh_prompta, qh_VERSION, - qh_promptb, qh_promptc, qh_promptd, qh_prompte); - exit(qh_ERRnone); - } - if (argc >1 && *argv[1] == '.' && !*(argv[1]+1)) { - fprintf(stdout, qh_prompt3, qh_VERSION); - exit(qh_ERRnone); - } - qh_init_A (stdin, stdout, stderr, argc, argv); /* sets qh qhull_command */ - exitcode= setjmp (qh errexit); /* simple statement for CRAY J916 */ - if (!exitcode) { - qh_option ("delaunay Qbbound-last", NULL, NULL); - qh DELAUNAY= True; /* 'd' */ - qh SCALElast= True; /* 'Qbb' */ - qh KEEPcoplanar= True; /* 'Qc', to keep coplanars in 'p' */ - qh_checkflags (qh qhull_command, hidden_options); - qh_initflags (qh qhull_command); - points= qh_readpoints (&numpoints, &dim, &ismalloc); - if (dim >= 5) { - qh_option ("Qxact_merge", NULL, NULL); - qh MERGEexact= True; /* 'Qx' always */ - } - qh_init_B (points, numpoints, dim, ismalloc); - qh_qhull(); - qh_check_output(); - qh_produce_output(); - if (qh VERIFYoutput && !qh FORCEoutput && !qh STOPpoint && !qh STOPcone) - qh_check_points(); - exitcode= qh_ERRnone; - } - qh NOerrexit= True; /* no more setjmp */ -#ifdef qh_NOmem - qh_freeqhull( True); -#else - qh_freeqhull( False); - qh_memfreeshort (&curlong, &totlong); - if (curlong || totlong) - fprintf (stderr, "qhull internal warning (main): did not free %d bytes of long memory (%d pieces)\n", - totlong, curlong); -#endif - return exitcode; -} /* main */ - |