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QhullPointSet.cpp
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Sat, Nov 9, 15:24

QhullPointSet.cpp
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/****************************************************************************
**
** Copyright (c) 2009-2015 C.B. Barber. All rights reserved.
** $Id: //main/2011/qhull/src/libqhullpcpp/QhullPointSet.cpp#2 $$Change: 1810 $
** $DateTime: 2015/01/17 18:28:15 $$Author: bbarber $
**
****************************************************************************/
#include "QhullPointSet.h"
#include <iostream>
#include <algorithm>
#ifdef _MSC_VER // Microsoft Visual C++ -- warning level 4
#endif
namespace orgQhull {
#// Conversion
// See qt-qhull.cpp for QList conversion
#ifndef QHULL_NO_STL
std::vector<QhullPoint> QhullPointSet::
toStdVector() const
{
QhullPointSetIterator i(*this);
std::vector<QhullPoint> vs;
while(i.hasNext()){
vs.push_back(i.next());
}
return vs;
}//toStdVector
#endif //QHULL_NO_STL
#//Element-access
//! Derived from QhullSet::value
QhullPoint QhullPointSet::
value(int idx) const
{
// Avoid call to qh_setsize() and assert in elementPointer()
//const T *n= reinterpret_cast<const T *>(&SETelem_(getSetT(), idx));
void **n= reinterpret_cast<void **>(&SETelem_(getSetT(), idx));
coordT **n2= reinterpret_cast<coordT **>(n);
if(idx>=0 && n<endPointer()){
return QhullPoint(dimension(), *n2);
}else{
return QhullPoint();
}
}//value
//! Non-const since copy is an alias
//! Derived from QhullSet::value
QhullPoint QhullPointSet::
value(int idx, QhullPoint &defaultValue) const
{
// Avoid call to qh_setsize() and assert in elementPointer()
void **n= reinterpret_cast<void **>(&SETelem_(getSetT(), idx));
coordT **n2= reinterpret_cast<coordT **>(n);
if(idx>=0 && n<endPointer()){
return QhullPoint(dimension(), *n2);
}else{
return defaultValue;
}
}//value
#//Read-only
bool QhullPointSet::
operator==(const QhullPointSet &o) const
{
if(dimension()!=o.dimension() || count()!=o.count()){
return false;
}
QhullPointSetIterator i(*this);
QhullPointSetIterator j(o);
while(i.hasNext()){
if(i.next()!=j.next()){
return false;
}
}
return true;
}//operator==
#//Search
bool QhullPointSet::
contains(const QhullPoint &t) const
{
QhullPointSetIterator i(*this);
while(i.hasNext()){
if(i.next()==t){
return true;
}
}
return false;
}//contains
int QhullPointSet::
count(const QhullPoint &t) const
{
int n= 0;
QhullPointSetIterator i(*this);
while(i.hasNext()){
if(i.next()==t){
++n;
}
}
return n;
}//count
int QhullPointSet::
indexOf(const QhullPoint &t) const
{
int idx= 0;
QhullPointSetIterator i(*this);
while(i.hasNext()){
if(i.next()==t){
return idx;
}
++idx;
}
return -1;
}//indexOf
int QhullPointSet::
lastIndexOf(const QhullPoint &t) const
{
int idx= count()-1;
QhullPointSetIterator i(*this);
i.toBack();
while(i.hasPrevious()){
if(i.previous()==t){
break;
}
--idx;
}
return idx;
}//lastIndexOf
#//QhullPointSetIterator
bool QhullPointSetIterator::
findNext(const QhullPoint &p)
{
while(i!=c->constEnd()){
if(*i++ == p){
return true;
}
}
return false;
}//findNext
bool QhullPointSetIterator::
findPrevious(const QhullPoint &p)
{
while(i!=c->constBegin()){
if(*(--i) == p){
return true;
}
}
return false;
}//findPrevious
}//namespace orgQhull
#//Global functions
using std::endl;
using std::ostream;
using orgQhull::QhullPoint;
using orgQhull::QhullPointSet;
using orgQhull::UsingLibQhull;
#//operator<<
ostream &
operator<<(ostream &os, const QhullPointSet &ps)
{
os << ps.print(UsingLibQhull::NOqhRunId);
return os;
}//<<QhullPointSet
ostream &
operator<<(ostream &os, const QhullPointSet::PrintIdentifiers &pr)
{
const QhullPointSet s= *pr.point_set;
if (pr.print_message) {
os << pr.print_message;
}
for(QhullPointSet::const_iterator i=s.begin(); i != s.end(); ++i){
if(i!=s.begin()){
os << " ";
}
const QhullPoint point= *i;
int id= point.id(pr.run_id);
os << "p" << id;
}
os << endl;
return os;
}//PrintIdentifiers
ostream &
operator<<(ostream &os, const QhullPointSet::PrintPointSet &pr)
{
const QhullPointSet s= *pr.point_set;
if (pr.print_message) {
os << pr.print_message;
}
for(QhullPointSet::const_iterator i=s.begin(); i != s.end(); ++i){
const QhullPoint point= *i;
os << point.print(pr.run_id);
}
return os;
}//printPointSet

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