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stat_r.c
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/*<html><pre> -<a href="qh-stat_r.htm"
>-------------------------------</a><a name="TOP">-</a>
stat_r.c
contains all statistics that are collected for qhull
see qh-stat_r.htm and stat_r.h
Copyright (c) 1993-2015 The Geometry Center.
$Id: //main/2011/qhull/src/libqhull_r/stat_r.c#2 $$Change: 1951 $
$DateTime: 2015/08/30 21:30:30 $$Author: bbarber $
*/
#include "qhull_ra.h"
/*========== functions in alphabetic order ================*/
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="allstatA">-</a>
qh_allstatA()
define statistics in groups of 20
notes:
(otherwise, 'gcc -O2' uses too much memory)
uses qhstat.next
*/
void qh_allstatA(qhT *qh) {
/* zdef_(type,name,doc,average) */
zzdef_(zdoc, Zdoc2, "precision statistics", -1);
zdef_(zinc, Znewvertex, NULL, -1);
zdef_(wadd, Wnewvertex, "ave. distance of a new vertex to a facet(!0s)", Znewvertex);
zzdef_(wmax, Wnewvertexmax, "max. distance of a new vertex to a facet", -1);
zdef_(wmax, Wvertexmax, "max. distance of an output vertex to a facet", -1);
zdef_(wmin, Wvertexmin, "min. distance of an output vertex to a facet", -1);
zdef_(wmin, Wmindenom, "min. denominator in hyperplane computation", -1);
qh->qhstat.precision= qh->qhstat.next; /* call qh_precision for each of these */
zzdef_(zdoc, Zdoc3, "precision problems (corrected unless 'Q0' or an error)", -1);
zzdef_(zinc, Zcoplanarridges, "coplanar half ridges in output", -1);
zzdef_(zinc, Zconcaveridges, "concave half ridges in output", -1);
zzdef_(zinc, Zflippedfacets, "flipped facets", -1);
zzdef_(zinc, Zcoplanarhorizon, "coplanar horizon facets for new vertices", -1);
zzdef_(zinc, Zcoplanarpart, "coplanar points during partitioning", -1);
zzdef_(zinc, Zminnorm, "degenerate hyperplanes recomputed with gaussian elimination", -1);
zzdef_(zinc, Znearlysingular, "nearly singular or axis-parallel hyperplanes", -1);
zzdef_(zinc, Zback0, "zero divisors during back substitute", -1);
zzdef_(zinc, Zgauss0, "zero divisors during gaussian elimination", -1);
zzdef_(zinc, Zmultiridge, "ridges with multiple neighbors", -1);
}
void qh_allstatB(qhT *qh) {
zzdef_(zdoc, Zdoc1, "summary information", -1);
zdef_(zinc, Zvertices, "number of vertices in output", -1);
zdef_(zinc, Znumfacets, "number of facets in output", -1);
zdef_(zinc, Znonsimplicial, "number of non-simplicial facets in output", -1);
zdef_(zinc, Znowsimplicial, "number of simplicial facets that were merged", -1);
zdef_(zinc, Znumridges, "number of ridges in output", -1);
zdef_(zadd, Znumridges, "average number of ridges per facet", Znumfacets);
zdef_(zmax, Zmaxridges, "maximum number of ridges", -1);
zdef_(zadd, Znumneighbors, "average number of neighbors per facet", Znumfacets);
zdef_(zmax, Zmaxneighbors, "maximum number of neighbors", -1);
zdef_(zadd, Znumvertices, "average number of vertices per facet", Znumfacets);
zdef_(zmax, Zmaxvertices, "maximum number of vertices", -1);
zdef_(zadd, Znumvneighbors, "average number of neighbors per vertex", Zvertices);
zdef_(zmax, Zmaxvneighbors, "maximum number of neighbors", -1);
zdef_(wadd, Wcpu, "cpu seconds for qhull after input", -1);
zdef_(zinc, Ztotvertices, "vertices created altogether", -1);
zzdef_(zinc, Zsetplane, "facets created altogether", -1);
zdef_(zinc, Ztotridges, "ridges created altogether", -1);
zdef_(zinc, Zpostfacets, "facets before post merge", -1);
zdef_(zadd, Znummergetot, "average merges per facet(at most 511)", Znumfacets);
zdef_(zmax, Znummergemax, " maximum merges for a facet(at most 511)", -1);
zdef_(zinc, Zangle, NULL, -1);
zdef_(wadd, Wangle, "average angle(cosine) of facet normals for all ridges", Zangle);
zdef_(wmax, Wanglemax, " maximum angle(cosine) of facet normals across a ridge", -1);
zdef_(wmin, Wanglemin, " minimum angle(cosine) of facet normals across a ridge", -1);
zdef_(wadd, Wareatot, "total area of facets", -1);
zdef_(wmax, Wareamax, " maximum facet area", -1);
zdef_(wmin, Wareamin, " minimum facet area", -1);
}
void qh_allstatC(qhT *qh) {
zdef_(zdoc, Zdoc9, "build hull statistics", -1);
zzdef_(zinc, Zprocessed, "points processed", -1);
zzdef_(zinc, Zretry, "retries due to precision problems", -1);
zdef_(wmax, Wretrymax, " max. random joggle", -1);
zdef_(zmax, Zmaxvertex, "max. vertices at any one time", -1);
zdef_(zinc, Ztotvisible, "ave. visible facets per iteration", Zprocessed);
zdef_(zinc, Zinsidevisible, " ave. visible facets without an horizon neighbor", Zprocessed);
zdef_(zadd, Zvisfacettot, " ave. facets deleted per iteration", Zprocessed);
zdef_(zmax, Zvisfacetmax, " maximum", -1);
zdef_(zadd, Zvisvertextot, "ave. visible vertices per iteration", Zprocessed);
zdef_(zmax, Zvisvertexmax, " maximum", -1);
zdef_(zinc, Ztothorizon, "ave. horizon facets per iteration", Zprocessed);
zdef_(zadd, Znewfacettot, "ave. new or merged facets per iteration", Zprocessed);
zdef_(zmax, Znewfacetmax, " maximum(includes initial simplex)", -1);
zdef_(wadd, Wnewbalance, "average new facet balance", Zprocessed);
zdef_(wadd, Wnewbalance2, " standard deviation", -1);
zdef_(wadd, Wpbalance, "average partition balance", Zpbalance);
zdef_(wadd, Wpbalance2, " standard deviation", -1);
zdef_(zinc, Zpbalance, " number of trials", -1);
zdef_(zinc, Zsearchpoints, "searches of all points for initial simplex", -1);
zdef_(zinc, Zdetsimplex, "determinants computed(area & initial hull)", -1);
zdef_(zinc, Znoarea, "determinants not computed because vertex too low", -1);
zdef_(zinc, Znotmax, "points ignored(!above max_outside)", -1);
zdef_(zinc, Znotgood, "points ignored(!above a good facet)", -1);
zdef_(zinc, Znotgoodnew, "points ignored(didn't create a good new facet)", -1);
zdef_(zinc, Zgoodfacet, "good facets found", -1);
zzdef_(zinc, Znumvisibility, "distance tests for facet visibility", -1);
zdef_(zinc, Zdistvertex, "distance tests to report minimum vertex", -1);
zzdef_(zinc, Ztotcheck, "points checked for facets' outer planes", -1);
zzdef_(zinc, Zcheckpart, " ave. distance tests per check", Ztotcheck);
}
void qh_allstatD(qhT *qh) {
zdef_(zinc, Zvisit, "resets of visit_id", -1);
zdef_(zinc, Zvvisit, " resets of vertex_visit", -1);
zdef_(zmax, Zvisit2max, " max visit_id/2", -1);
zdef_(zmax, Zvvisit2max, " max vertex_visit/2", -1);
zdef_(zdoc, Zdoc4, "partitioning statistics(see previous for outer planes)", -1);
zzdef_(zadd, Zdelvertextot, "total vertices deleted", -1);
zdef_(zmax, Zdelvertexmax, " maximum vertices deleted per iteration", -1);
zdef_(zinc, Zfindbest, "calls to findbest", -1);
zdef_(zadd, Zfindbesttot, " ave. facets tested", Zfindbest);
zdef_(zmax, Zfindbestmax, " max. facets tested", -1);
zdef_(zadd, Zfindcoplanar, " ave. coplanar search", Zfindbest);
zdef_(zinc, Zfindnew, "calls to findbestnew", -1);
zdef_(zadd, Zfindnewtot, " ave. facets tested", Zfindnew);
zdef_(zmax, Zfindnewmax, " max. facets tested", -1);
zdef_(zinc, Zfindnewjump, " ave. clearly better", Zfindnew);
zdef_(zinc, Zfindnewsharp, " calls due to qh_sharpnewfacets", -1);
zdef_(zinc, Zfindhorizon, "calls to findhorizon", -1);
zdef_(zadd, Zfindhorizontot, " ave. facets tested", Zfindhorizon);
zdef_(zmax, Zfindhorizonmax, " max. facets tested", -1);
zdef_(zinc, Zfindjump, " ave. clearly better", Zfindhorizon);
zdef_(zinc, Zparthorizon, " horizon facets better than bestfacet", -1);
zdef_(zinc, Zpartangle, "angle tests for repartitioned coplanar points", -1);
zdef_(zinc, Zpartflip, " repartitioned coplanar points for flipped orientation", -1);
}
void qh_allstatE(qhT *qh) {
zdef_(zinc, Zpartinside, "inside points", -1);
zdef_(zinc, Zpartnear, " inside points kept with a facet", -1);
zdef_(zinc, Zcoplanarinside, " inside points that were coplanar with a facet", -1);
zdef_(zinc, Zbestlower, "calls to findbestlower", -1);
zdef_(zinc, Zbestlowerv, " with search of vertex neighbors", -1);
zdef_(wadd, Wmaxout, "difference in max_outside at final check", -1);
zzdef_(zinc, Zpartitionall, "distance tests for initial partition", -1);
zdef_(zinc, Ztotpartition, "partitions of a point", -1);
zzdef_(zinc, Zpartition, "distance tests for partitioning", -1);
zzdef_(zinc, Zdistcheck, "distance tests for checking flipped facets", -1);
zzdef_(zinc, Zdistconvex, "distance tests for checking convexity", -1);
zdef_(zinc, Zdistgood, "distance tests for checking good point", -1);
zdef_(zinc, Zdistio, "distance tests for output", -1);
zdef_(zinc, Zdiststat, "distance tests for statistics", -1);
zdef_(zinc, Zdistplane, "total number of distance tests", -1);
zdef_(zinc, Ztotpartcoplanar, "partitions of coplanar points or deleted vertices", -1);
zzdef_(zinc, Zpartcoplanar, " distance tests for these partitions", -1);
zdef_(zinc, Zcomputefurthest, "distance tests for computing furthest", -1);
}
void qh_allstatE2(qhT *qh) {
zdef_(zdoc, Zdoc5, "statistics for matching ridges", -1);
zdef_(zinc, Zhashlookup, "total lookups for matching ridges of new facets", -1);
zdef_(zinc, Zhashtests, "average number of tests to match a ridge", Zhashlookup);
zdef_(zinc, Zhashridge, "total lookups of subridges(duplicates and boundary)", -1);
zdef_(zinc, Zhashridgetest, "average number of tests per subridge", Zhashridge);
zdef_(zinc, Zdupsame, "duplicated ridges in same merge cycle", -1);
zdef_(zinc, Zdupflip, "duplicated ridges with flipped facets", -1);
zdef_(zdoc, Zdoc6, "statistics for determining merges", -1);
zdef_(zinc, Zangletests, "angles computed for ridge convexity", -1);
zdef_(zinc, Zbestcentrum, "best merges used centrum instead of vertices",-1);
zzdef_(zinc, Zbestdist, "distance tests for best merge", -1);
zzdef_(zinc, Zcentrumtests, "distance tests for centrum convexity", -1);
zzdef_(zinc, Zdistzero, "distance tests for checking simplicial convexity", -1);
zdef_(zinc, Zcoplanarangle, "coplanar angles in getmergeset", -1);
zdef_(zinc, Zcoplanarcentrum, "coplanar centrums in getmergeset", -1);
zdef_(zinc, Zconcaveridge, "concave ridges in getmergeset", -1);
}
void qh_allstatF(qhT *qh) {
zdef_(zdoc, Zdoc7, "statistics for merging", -1);
zdef_(zinc, Zpremergetot, "merge iterations", -1);
zdef_(zadd, Zmergeinittot, "ave. initial non-convex ridges per iteration", Zpremergetot);
zdef_(zadd, Zmergeinitmax, " maximum", -1);
zdef_(zadd, Zmergesettot, " ave. additional non-convex ridges per iteration", Zpremergetot);
zdef_(zadd, Zmergesetmax, " maximum additional in one pass", -1);
zdef_(zadd, Zmergeinittot2, "initial non-convex ridges for post merging", -1);
zdef_(zadd, Zmergesettot2, " additional non-convex ridges", -1);
zdef_(wmax, Wmaxoutside, "max distance of vertex or coplanar point above facet(w/roundoff)", -1);
zdef_(wmin, Wminvertex, "max distance of merged vertex below facet(or roundoff)", -1);
zdef_(zinc, Zwidefacet, "centrums frozen due to a wide merge", -1);
zdef_(zinc, Zwidevertices, "centrums frozen due to extra vertices", -1);
zzdef_(zinc, Ztotmerge, "total number of facets or cycles of facets merged", -1);
zdef_(zinc, Zmergesimplex, "merged a simplex", -1);
zdef_(zinc, Zonehorizon, "simplices merged into coplanar horizon", -1);
zzdef_(zinc, Zcyclehorizon, "cycles of facets merged into coplanar horizon", -1);
zzdef_(zadd, Zcyclefacettot, " ave. facets per cycle", Zcyclehorizon);
zdef_(zmax, Zcyclefacetmax, " max. facets", -1);
zdef_(zinc, Zmergeintohorizon, "new facets merged into horizon", -1);
zdef_(zinc, Zmergenew, "new facets merged", -1);
zdef_(zinc, Zmergehorizon, "horizon facets merged into new facets", -1);
zdef_(zinc, Zmergevertex, "vertices deleted by merging", -1);
zdef_(zinc, Zcyclevertex, "vertices deleted by merging into coplanar horizon", -1);
zdef_(zinc, Zdegenvertex, "vertices deleted by degenerate facet", -1);
zdef_(zinc, Zmergeflipdup, "merges due to flipped facets in duplicated ridge", -1);
zdef_(zinc, Zneighbor, "merges due to redundant neighbors", -1);
zdef_(zadd, Ztestvneighbor, "non-convex vertex neighbors", -1);
}
void qh_allstatG(qhT *qh) {
zdef_(zinc, Zacoplanar, "merges due to angle coplanar facets", -1);
zdef_(wadd, Wacoplanartot, " average merge distance", Zacoplanar);
zdef_(wmax, Wacoplanarmax, " maximum merge distance", -1);
zdef_(zinc, Zcoplanar, "merges due to coplanar facets", -1);
zdef_(wadd, Wcoplanartot, " average merge distance", Zcoplanar);
zdef_(wmax, Wcoplanarmax, " maximum merge distance", -1);
zdef_(zinc, Zconcave, "merges due to concave facets", -1);
zdef_(wadd, Wconcavetot, " average merge distance", Zconcave);
zdef_(wmax, Wconcavemax, " maximum merge distance", -1);
zdef_(zinc, Zavoidold, "coplanar/concave merges due to avoiding old merge", -1);
zdef_(wadd, Wavoidoldtot, " average merge distance", Zavoidold);
zdef_(wmax, Wavoidoldmax, " maximum merge distance", -1);
zdef_(zinc, Zdegen, "merges due to degenerate facets", -1);
zdef_(wadd, Wdegentot, " average merge distance", Zdegen);
zdef_(wmax, Wdegenmax, " maximum merge distance", -1);
zdef_(zinc, Zflipped, "merges due to removing flipped facets", -1);
zdef_(wadd, Wflippedtot, " average merge distance", Zflipped);
zdef_(wmax, Wflippedmax, " maximum merge distance", -1);
zdef_(zinc, Zduplicate, "merges due to duplicated ridges", -1);
zdef_(wadd, Wduplicatetot, " average merge distance", Zduplicate);
zdef_(wmax, Wduplicatemax, " maximum merge distance", -1);
}
void qh_allstatH(qhT *qh) {
zdef_(zdoc, Zdoc8, "renamed vertex statistics", -1);
zdef_(zinc, Zrenameshare, "renamed vertices shared by two facets", -1);
zdef_(zinc, Zrenamepinch, "renamed vertices in a pinched facet", -1);
zdef_(zinc, Zrenameall, "renamed vertices shared by multiple facets", -1);
zdef_(zinc, Zfindfail, "rename failures due to duplicated ridges", -1);
zdef_(zinc, Zdupridge, " duplicate ridges detected", -1);
zdef_(zinc, Zdelridge, "deleted ridges due to renamed vertices", -1);
zdef_(zinc, Zdropneighbor, "dropped neighbors due to renamed vertices", -1);
zdef_(zinc, Zdropdegen, "degenerate facets due to dropped neighbors", -1);
zdef_(zinc, Zdelfacetdup, " facets deleted because of no neighbors", -1);
zdef_(zinc, Zremvertex, "vertices removed from facets due to no ridges", -1);
zdef_(zinc, Zremvertexdel, " deleted", -1);
zdef_(zinc, Zintersectnum, "vertex intersections for locating redundant vertices", -1);
zdef_(zinc, Zintersectfail, "intersections failed to find a redundant vertex", -1);
zdef_(zinc, Zintersect, "intersections found redundant vertices", -1);
zdef_(zadd, Zintersecttot, " ave. number found per vertex", Zintersect);
zdef_(zmax, Zintersectmax, " max. found for a vertex", -1);
zdef_(zinc, Zvertexridge, NULL, -1);
zdef_(zadd, Zvertexridgetot, " ave. number of ridges per tested vertex", Zvertexridge);
zdef_(zmax, Zvertexridgemax, " max. number of ridges per tested vertex", -1);
zdef_(zdoc, Zdoc10, "memory usage statistics(in bytes)", -1);
zdef_(zadd, Zmemfacets, "for facets and their normals, neighbor and vertex sets", -1);
zdef_(zadd, Zmemvertices, "for vertices and their neighbor sets", -1);
zdef_(zadd, Zmempoints, "for input points, outside and coplanar sets, and qhT",-1);
zdef_(zadd, Zmemridges, "for ridges and their vertex sets", -1);
} /* allstat */
void qh_allstatI(qhT *qh) {
qh->qhstat.vridges= qh->qhstat.next;
zzdef_(zdoc, Zdoc11, "Voronoi ridge statistics", -1);
zzdef_(zinc, Zridge, "non-simplicial Voronoi vertices for all ridges", -1);
zzdef_(wadd, Wridge, " ave. distance to ridge", Zridge);
zzdef_(wmax, Wridgemax, " max. distance to ridge", -1);
zzdef_(zinc, Zridgemid, "bounded ridges", -1);
zzdef_(wadd, Wridgemid, " ave. distance of midpoint to ridge", Zridgemid);
zzdef_(wmax, Wridgemidmax, " max. distance of midpoint to ridge", -1);
zzdef_(zinc, Zridgeok, "bounded ridges with ok normal", -1);
zzdef_(wadd, Wridgeok, " ave. angle to ridge", Zridgeok);
zzdef_(wmax, Wridgeokmax, " max. angle to ridge", -1);
zzdef_(zinc, Zridge0, "bounded ridges with near-zero normal", -1);
zzdef_(wadd, Wridge0, " ave. angle to ridge", Zridge0);
zzdef_(wmax, Wridge0max, " max. angle to ridge", -1);
zdef_(zdoc, Zdoc12, "Triangulation statistics(Qt)", -1);
zdef_(zinc, Ztricoplanar, "non-simplicial facets triangulated", -1);
zdef_(zadd, Ztricoplanartot, " ave. new facets created(may be deleted)", Ztricoplanar);
zdef_(zmax, Ztricoplanarmax, " max. new facets created", -1);
zdef_(zinc, Ztrinull, "null new facets deleted(duplicated vertex)", -1);
zdef_(zinc, Ztrimirror, "mirrored pairs of new facets deleted(same vertices)", -1);
zdef_(zinc, Ztridegen, "degenerate new facets in output(same ridge)", -1);
} /* allstat */
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="allstatistics">-</a>
qh_allstatistics()
reset printed flag for all statistics
*/
void qh_allstatistics(qhT *qh) {
int i;
for(i=ZEND; i--; )
qh->qhstat.printed[i]= False;
} /* allstatistics */
#if qh_KEEPstatistics
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="collectstatistics">-</a>
qh_collectstatistics()
collect statistics for qh.facet_list
*/
void qh_collectstatistics(qhT *qh) {
facetT *facet, *neighbor, **neighborp;
vertexT *vertex, **vertexp;
realT dotproduct, dist;
int sizneighbors, sizridges, sizvertices, i;
qh->old_randomdist= qh->RANDOMdist;
qh->RANDOMdist= False;
zval_(Zmempoints)= qh->num_points * qh->normal_size + sizeof(qhT);
zval_(Zmemfacets)= 0;
zval_(Zmemridges)= 0;
zval_(Zmemvertices)= 0;
zval_(Zangle)= 0;
wval_(Wangle)= 0.0;
zval_(Znumridges)= 0;
zval_(Znumfacets)= 0;
zval_(Znumneighbors)= 0;
zval_(Znumvertices)= 0;
zval_(Znumvneighbors)= 0;
zval_(Znummergetot)= 0;
zval_(Znummergemax)= 0;
zval_(Zvertices)= qh->num_vertices - qh_setsize(qh, qh->del_vertices);
if (qh->MERGING || qh->APPROXhull || qh->JOGGLEmax < REALmax/2)
wmax_(Wmaxoutside, qh->max_outside);
if (qh->MERGING)
wmin_(Wminvertex, qh->min_vertex);
FORALLfacets
facet->seen= False;
if (qh->DELAUNAY) {
FORALLfacets {
if (facet->upperdelaunay != qh->UPPERdelaunay)
facet->seen= True; /* remove from angle statistics */
}
}
FORALLfacets {
if (facet->visible && qh->NEWfacets)
continue;
sizvertices= qh_setsize(qh, facet->vertices);
sizneighbors= qh_setsize(qh, facet->neighbors);
sizridges= qh_setsize(qh, facet->ridges);
zinc_(Znumfacets);
zadd_(Znumvertices, sizvertices);
zmax_(Zmaxvertices, sizvertices);
zadd_(Znumneighbors, sizneighbors);
zmax_(Zmaxneighbors, sizneighbors);
zadd_(Znummergetot, facet->nummerge);
i= facet->nummerge; /* avoid warnings */
zmax_(Znummergemax, i);
if (!facet->simplicial) {
if (sizvertices == qh->hull_dim) {
zinc_(Znowsimplicial);
}else {
zinc_(Znonsimplicial);
}
}
if (sizridges) {
zadd_(Znumridges, sizridges);
zmax_(Zmaxridges, sizridges);
}
zadd_(Zmemfacets, sizeof(facetT) + qh->normal_size + 2*sizeof(setT)
+ SETelemsize * (sizneighbors + sizvertices));
if (facet->ridges) {
zadd_(Zmemridges,
sizeof(setT) + SETelemsize * sizridges + sizridges *
(sizeof(ridgeT) + sizeof(setT) + SETelemsize * (qh->hull_dim-1))/2);
}
if (facet->outsideset)
zadd_(Zmempoints, sizeof(setT) + SETelemsize * qh_setsize(qh, facet->outsideset));
if (facet->coplanarset)
zadd_(Zmempoints, sizeof(setT) + SETelemsize * qh_setsize(qh, facet->coplanarset));
if (facet->seen) /* Delaunay upper envelope */
continue;
facet->seen= True;
FOREACHneighbor_(facet) {
if (neighbor == qh_DUPLICATEridge || neighbor == qh_MERGEridge
|| neighbor->seen || !facet->normal || !neighbor->normal)
continue;
dotproduct= qh_getangle(qh, facet->normal, neighbor->normal);
zinc_(Zangle);
wadd_(Wangle, dotproduct);
wmax_(Wanglemax, dotproduct)
wmin_(Wanglemin, dotproduct)
}
if (facet->normal) {
FOREACHvertex_(facet->vertices) {
zinc_(Zdiststat);
qh_distplane(qh, vertex->point, facet, &dist);
wmax_(Wvertexmax, dist);
wmin_(Wvertexmin, dist);
}
}
}
FORALLvertices {
if (vertex->deleted)
continue;
zadd_(Zmemvertices, sizeof(vertexT));
if (vertex->neighbors) {
sizneighbors= qh_setsize(qh, vertex->neighbors);
zadd_(Znumvneighbors, sizneighbors);
zmax_(Zmaxvneighbors, sizneighbors);
zadd_(Zmemvertices, sizeof(vertexT) + SETelemsize * sizneighbors);
}
}
qh->RANDOMdist= qh->old_randomdist;
} /* collectstatistics */
#endif /* qh_KEEPstatistics */
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="initstatistics">-</a>
qh_initstatistics(qh)
initialize statistics
Requires
notes:
NOerrors -- qh_initstatistics can not use qh_errexit(), qh_fprintf, or qh.ferr
On first call, only qhmem.ferr is defined. qh_memalloc is not setup.
Also invoked by QhullQh().
*/
void qh_initstatistics(qhT *qh) {
int i;
realT realx;
int intx;
qh->qhstat.next= 0;
qh_allstatA(qh);
qh_allstatB(qh);
qh_allstatC(qh);
qh_allstatD(qh);
qh_allstatE(qh);
qh_allstatE2(qh);
qh_allstatF(qh);
qh_allstatG(qh);
qh_allstatH(qh);
qh_allstatI(qh);
if (qh->qhstat.next > (int)sizeof(qh->qhstat.id)) {
qh_fprintf(qh, qh->qhmem.ferr, 6184, "qhull error (qh_initstatistics): increase size of qhstat.id[].\n\
qhstat.next %d should be <= sizeof(qh->qhstat.id) %d\n", qh->qhstat.next, (int)sizeof(qh->qhstat.id));
#if 0 /* for locating error, Znumridges should be duplicated */
for(i=0; i < ZEND; i++) {
int j;
for(j=i+1; j < ZEND; j++) {
if (qh->qhstat.id[i] == qh->qhstat.id[j]) {
qh_fprintf(qh, qh->qhmem.ferr, 6185, "qhull error (qh_initstatistics): duplicated statistic %d at indices %d and %d\n",
qh->qhstat.id[i], i, j);
}
}
}
#endif
qh_exit(qh_ERRqhull); /* can not use qh_errexit() */
}
qh->qhstat.init[zinc].i= 0;
qh->qhstat.init[zadd].i= 0;
qh->qhstat.init[zmin].i= INT_MAX;
qh->qhstat.init[zmax].i= INT_MIN;
qh->qhstat.init[wadd].r= 0;
qh->qhstat.init[wmin].r= REALmax;
qh->qhstat.init[wmax].r= -REALmax;
for(i=0; i < ZEND; i++) {
if (qh->qhstat.type[i] > ZTYPEreal) {
realx= qh->qhstat.init[(unsigned char)(qh->qhstat.type[i])].r;
qh->qhstat.stats[i].r= realx;
}else if (qh->qhstat.type[i] != zdoc) {
intx= qh->qhstat.init[(unsigned char)(qh->qhstat.type[i])].i;
qh->qhstat.stats[i].i= intx;
}
}
} /* initstatistics */
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="newstats">-</a>
qh_newstats(qh, )
returns True if statistics for zdoc
returns:
next zdoc
*/
boolT qh_newstats(qhT *qh, int idx, int *nextindex) {
boolT isnew= False;
int start, i;
if (qh->qhstat.type[qh->qhstat.id[idx]] == zdoc)
start= idx+1;
else
start= idx;
for(i= start; i < qh->qhstat.next && qh->qhstat.type[qh->qhstat.id[i]] != zdoc; i++) {
if (!qh_nostatistic(qh, qh->qhstat.id[i]) && !qh->qhstat.printed[qh->qhstat.id[i]])
isnew= True;
}
*nextindex= i;
return isnew;
} /* newstats */
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="nostatistic">-</a>
qh_nostatistic(qh, index )
true if no statistic to print
*/
boolT qh_nostatistic(qhT *qh, int i) {
if ((qh->qhstat.type[i] > ZTYPEreal
&&qh->qhstat.stats[i].r == qh->qhstat.init[(unsigned char)(qh->qhstat.type[i])].r)
|| (qh->qhstat.type[i] < ZTYPEreal
&&qh->qhstat.stats[i].i == qh->qhstat.init[(unsigned char)(qh->qhstat.type[i])].i))
return True;
return False;
} /* nostatistic */
#if qh_KEEPstatistics
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="printallstatistics">-</a>
qh_printallstatistics(qh, fp, string )
print all statistics with header 'string'
*/
void qh_printallstatistics(qhT *qh, FILE *fp, const char *string) {
qh_allstatistics(qh);
qh_collectstatistics(qh);
qh_printstatistics(qh, fp, string);
qh_memstatistics(qh, fp);
}
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="printstatistics">-</a>
qh_printstatistics(qh, fp, string )
print statistics to a file with header 'string'
skips statistics with qhstat.printed[] (reset with qh_allstatistics)
see:
qh_printallstatistics()
*/
void qh_printstatistics(qhT *qh, FILE *fp, const char *string) {
int i, k;
realT ave;
if (qh->num_points != qh->num_vertices) {
wval_(Wpbalance)= 0;
wval_(Wpbalance2)= 0;
}else
wval_(Wpbalance2)= qh_stddev(zval_(Zpbalance), wval_(Wpbalance),
wval_(Wpbalance2), &ave);
wval_(Wnewbalance2)= qh_stddev(zval_(Zprocessed), wval_(Wnewbalance),
wval_(Wnewbalance2), &ave);
qh_fprintf(qh, fp, 9350, "\n\
%s\n\
qhull invoked by: %s | %s\n%s with options:\n%s\n", string, qh->rbox_command,
qh->qhull_command, qh_version, qh->qhull_options);
qh_fprintf(qh, fp, 9351, "\nprecision constants:\n\
%6.2g max. abs. coordinate in the (transformed) input('Qbd:n')\n\
%6.2g max. roundoff error for distance computation('En')\n\
%6.2g max. roundoff error for angle computations\n\
%6.2g min. distance for outside points ('Wn')\n\
%6.2g min. distance for visible facets ('Vn')\n\
%6.2g max. distance for coplanar facets ('Un')\n\
%6.2g max. facet width for recomputing centrum and area\n\
",
qh->MAXabs_coord, qh->DISTround, qh->ANGLEround, qh->MINoutside,
qh->MINvisible, qh->MAXcoplanar, qh->WIDEfacet);
if (qh->KEEPnearinside)
qh_fprintf(qh, fp, 9352, "\
%6.2g max. distance for near-inside points\n", qh->NEARinside);
if (qh->premerge_cos < REALmax/2) qh_fprintf(qh, fp, 9353, "\
%6.2g max. cosine for pre-merge angle\n", qh->premerge_cos);
if (qh->PREmerge) qh_fprintf(qh, fp, 9354, "\
%6.2g radius of pre-merge centrum\n", qh->premerge_centrum);
if (qh->postmerge_cos < REALmax/2) qh_fprintf(qh, fp, 9355, "\
%6.2g max. cosine for post-merge angle\n", qh->postmerge_cos);
if (qh->POSTmerge) qh_fprintf(qh, fp, 9356, "\
%6.2g radius of post-merge centrum\n", qh->postmerge_centrum);
qh_fprintf(qh, fp, 9357, "\
%6.2g max. distance for merging two simplicial facets\n\
%6.2g max. roundoff error for arithmetic operations\n\
%6.2g min. denominator for divisions\n\
zero diagonal for Gauss: ", qh->ONEmerge, REALepsilon, qh->MINdenom);
for(k=0; k < qh->hull_dim; k++)
qh_fprintf(qh, fp, 9358, "%6.2e ", qh->NEARzero[k]);
qh_fprintf(qh, fp, 9359, "\n\n");
for(i=0 ; i < qh->qhstat.next; )
qh_printstats(qh, fp, i, &i);
} /* printstatistics */
#endif /* qh_KEEPstatistics */
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="printstatlevel">-</a>
qh_printstatlevel(qh, fp, id )
print level information for a statistic
notes:
nop if id >= ZEND, printed, or same as initial value
*/
void qh_printstatlevel(qhT *qh, FILE *fp, int id, int start) {
#define NULLfield " "
QHULL_UNUSED(start)
if (id >= ZEND || qh->qhstat.printed[id])
return;
if (qh->qhstat.type[id] == zdoc) {
qh_fprintf(qh, fp, 9360, "%s\n", qh->qhstat.doc[id]);
return;
}
if (qh_nostatistic(qh, id) || !qh->qhstat.doc[id])
return;
qh->qhstat.printed[id]= True;
if (qh->qhstat.count[id] != -1
&& qh->qhstat.stats[(unsigned char)(qh->qhstat.count[id])].i == 0)
qh_fprintf(qh, fp, 9361, " *0 cnt*");
else if (qh->qhstat.type[id] >= ZTYPEreal && qh->qhstat.count[id] == -1)
qh_fprintf(qh, fp, 9362, "%7.2g", qh->qhstat.stats[id].r);
else if (qh->qhstat.type[id] >= ZTYPEreal && qh->qhstat.count[id] != -1)
qh_fprintf(qh, fp, 9363, "%7.2g", qh->qhstat.stats[id].r/ qh->qhstat.stats[(unsigned char)(qh->qhstat.count[id])].i);
else if (qh->qhstat.type[id] < ZTYPEreal && qh->qhstat.count[id] == -1)
qh_fprintf(qh, fp, 9364, "%7d", qh->qhstat.stats[id].i);
else if (qh->qhstat.type[id] < ZTYPEreal && qh->qhstat.count[id] != -1)
qh_fprintf(qh, fp, 9365, "%7.3g", (realT) qh->qhstat.stats[id].i / qh->qhstat.stats[(unsigned char)(qh->qhstat.count[id])].i);
qh_fprintf(qh, fp, 9366, " %s\n", qh->qhstat.doc[id]);
} /* printstatlevel */
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="printstats">-</a>
qh_printstats(qh, fp, index, nextindex )
print statistics for a zdoc group
returns:
next zdoc if non-null
*/
void qh_printstats(qhT *qh, FILE *fp, int idx, int *nextindex) {
int j, nexti;
if (qh_newstats(qh, idx, &nexti)) {
qh_fprintf(qh, fp, 9367, "\n");
for (j=idx; j<nexti; j++)
qh_printstatlevel(qh, fp, qh->qhstat.id[j], 0);
}
if (nextindex)
*nextindex= nexti;
} /* printstats */
#if qh_KEEPstatistics
/*-<a href="qh-stat_r.htm#TOC"
>-------------------------------</a><a name="stddev">-</a>
qh_stddev(num, tot, tot2, ave )
compute the standard deviation and average from statistics
tot2 is the sum of the squares
notes:
computes r.m.s.:
(x-ave)^2
== x^2 - 2x tot/num + (tot/num)^2
== tot2 - 2 tot tot/num + tot tot/num
== tot2 - tot ave
*/
realT qh_stddev(int num, realT tot, realT tot2, realT *ave) {
realT stddev;
*ave= tot/num;
stddev= sqrt(tot2/num - *ave * *ave);
return stddev;
} /* stddev */
#endif /* qh_KEEPstatistics */
#if !qh_KEEPstatistics
void qh_collectstatistics(qhT *qh) {}
void qh_printallstatistics(qhT *qh, FILE *fp, char *string) {};
void qh_printstatistics(qhT *qh, FILE *fp, char *string) {}
#endif

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