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PointCoordinates.cpp
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Tue, Sep 3, 00:37

PointCoordinates.cpp
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/****************************************************************************
**
** Copyright (c) 2009-2011 C.B. Barber. All rights reserved.
** $Id: //main/2011/qhull/src/libqhullcpp/PointCoordinates.cpp#3 $$Change: 1342 $
** $DateTime: 2011/03/07 21:55:47 $$Author: bbarber $
**
****************************************************************************/
#include "QhullError.h"
#include "QhullPoint.h"
#include "PointCoordinates.h"
#include <iostream>
using std::istream;
using std::string;
using std::ws;
#ifdef _MSC_VER // Microsoft Visual C++ -- warning level 4
#pragma warning( disable : 4996) // function was declared deprecated(strcpy, localtime, etc.)
#endif
namespace orgQhull {
#//! PointCoordinates -- vector of PointCoordinates
#//Construct
PointCoordinates::
PointCoordinates()
: QhullPoints()
, point_coordinates()
, point_comment()
{
makeValid();
}
#//Construct
PointCoordinates::
PointCoordinates(int pointDimension)
: QhullPoints(pointDimension)
, point_coordinates()
, point_comment()
{
makeValid();
}
PointCoordinates::
PointCoordinates(const std::string &comment)
: QhullPoints()
, point_coordinates()
, point_comment()
{
appendComment(comment);
makeValid();
}
PointCoordinates::
PointCoordinates(int pointDimension, const std::string &comment)
: QhullPoints(pointDimension)
, point_coordinates()
, point_comment()
{
appendComment(comment);
makeValid();
}
PointCoordinates::
PointCoordinates(int pointDimension, const std::string &comment, int coordinatesCount, const coordT *c)
: QhullPoints(pointDimension)
, point_coordinates()
, point_comment(comment)
{
append(coordinatesCount, c);
}
PointCoordinates::
PointCoordinates(const PointCoordinates &other)
: QhullPoints(other)
, point_coordinates(other.point_coordinates)
, point_comment(other.point_comment)
{
makeValid();
}
PointCoordinates & PointCoordinates::
operator=(const PointCoordinates &other)
{
point_coordinates= other.point_coordinates;
point_comment= other.point_comment;
makeValid();
return *this;
}//operator=
PointCoordinates::
~PointCoordinates()
{ }
#//GetSet
void PointCoordinates::
checkValid() const
{
if(getCoordinates().data()!=data()
|| getCoordinates().count()!=coordinateCount()){
throw QhullError(10060, "Qhull error: first point (%x) is not PointCoordinates.data() or count (%d) is not PointCoordinates.count (%d)", coordinateCount(), getCoordinates().count(), 0.0, data());
}
}//checkValid
void PointCoordinates::
setDimension(int i)
{
if(i<0){
throw QhullError(10062, "Qhull error: can not set PointCoordinates dimension to %d", i);
}
int currentDimension=QhullPoints::dimension();
if(currentDimension!=0 && i!=currentDimension){
throw QhullError(10063, "Qhull error: can not change PointCoordinates dimension (from %d to %d)", currentDimension, i);
}
QhullPoints::setDimension(i);
}//setDimension
//#Foreach
Coordinates::ConstIterator PointCoordinates::
beginCoordinates(int pointIndex) const
{
return point_coordinates.begin()+indexOffset(pointIndex);
}
Coordinates::Iterator PointCoordinates::
beginCoordinates(int pointIndex)
{
return point_coordinates.begin()+indexOffset(pointIndex);
}
#//Modify
void PointCoordinates::
append(int count, const coordT *c)
{
if(count<=0){
return;
}
if(includesCoordinates(c)){
throw QhullError(10065, "Qhull error: can not append a subset of PointCoordinates to itself. The coordinates for point %d may move.", indexOf(c, QhullError::NOthrow));
}
reserveCoordinates(count);
std::copy(c, c+count, std::back_inserter(point_coordinates));
makeValid();
}//append coordT
void PointCoordinates::
append(const PointCoordinates &other)
{
setDimension(other.dimension());
append(other.coordinateCount(), other.data());
}//append PointCoordinates
void PointCoordinates::
append(const QhullPoint &p)
{
setDimension(p.dimension());
append(p.dimension(), p.coordinates());
}//append QhullPoint
void PointCoordinates::
appendComment(const std::string &s){
if(char c= s[0] && point_comment.empty()){
if(c=='-' || isdigit(c)){
throw QhullError(10028, "Qhull argument error: comments can not start with a number or minus, %s", 0, 0, 0.0, s.c_str());
}
}
point_comment += s;
}//appendComment
//! Read PointCoordinates from istream. First two numbers are dimension and count. A non-digit starts a rboxCommand.
//! Overwrites point_comment. See qh_readpoints [io.c]
void PointCoordinates::
appendPoints(istream &in)
{
int inDimension, inCount;
in >> ws >> inDimension >> ws;
if(!in.good()){
in.clear();
string remainder;
getline(in, remainder);
throw QhullError(10005, "Qhull error: input did not start with dimension or count -- %s", 0, 0, 0, remainder.c_str());
}
char c= (char)in.peek();
if(c!='-' && !isdigit(c)){ // Comments start with a non-digit
getline(in, point_comment);
in >> ws;
}
in >> inCount >> ws;
if(!in.good()){
in.clear();
string remainder;
getline(in, remainder);
throw QhullError(10009, "Qhull error: input did not start with dimension and count -- %d %s", inDimension, 0, 0, remainder.c_str());
}
c= (char)in.peek();
if(c!='-' && !isdigit(c)){ // Comments start with a non-digit
getline(in, point_comment);
in >> ws;
}
if(inCount<inDimension){ // Count may precede dimension
std::swap(inCount, inDimension);
}
setDimension(inDimension);
reserveCoordinates(inCount*inDimension);
int coordinateCount= 0;
while(!in.eof()){
realT p;
in >> p >> ws;
if(in.fail()){
in.clear();
string remainder;
getline(in, remainder);
throw QhullError(10008, "Qhull error: failed to read coordinate %d of point %d\n %s", coordinateCount % inDimension, coordinateCount/inDimension, 0, remainder.c_str());
}else{
point_coordinates.push_back(p);
coordinateCount++;
}
}
if(coordinateCount != inCount*inDimension){
if(coordinateCount%inDimension==0){
throw QhullError(10006, "Qhull error: expected %d %d-d PointCoordinates but read %i PointCoordinates", int(inCount), inDimension, 0.0, int(coordinateCount/inDimension));
}else{
throw QhullError(10012, "Qhull error: expected %d %d-d PointCoordinates but read %i PointCoordinates plus %f extra coordinates", inCount, inDimension, float(coordinateCount%inDimension), coordinateCount/inDimension);
}
}
makeValid();
}//appendPoints istream
PointCoordinates PointCoordinates::
operator+(const PointCoordinates &other) const
{
PointCoordinates pc= *this;
pc << other;
return pc;
}//operator+
void PointCoordinates::
reserveCoordinates(int newCoordinates)
{
// vector::reserve is not const
point_coordinates.reserve((int)point_coordinates.size()+newCoordinates); // WARN64
makeValid();
}//reserveCoordinates
#//Helpers
int PointCoordinates::
indexOffset(int i) const {
int n= i*dimension();
int coordinateCount= point_coordinates.count();
if(i<0 || n>coordinateCount){
throw QhullError(10061, "Qhull error: point_coordinates is too short (%d) for point %d", coordinateCount, i);
}
return n;
}
}//namespace orgQhull
#//Global functions
using std::endl;
using std::ostream;
using orgQhull::Coordinates;
using orgQhull::PointCoordinates;
ostream&
operator<<(ostream &os, const PointCoordinates &p)
{
p.checkValid();
int count= p.count();
int dimension= p.dimension();
string comment= p.comment();
if(comment.empty()){
os << dimension << endl;
}else{
os << dimension << " " << comment << endl;
}
os << count << endl;
Coordinates::ConstIterator c= p.beginCoordinates();
for(int i=0; i<count; i++){
for(int j=0; j<dimension; j++){
os << *c++ << " ";
}
os << endl;
}
return os;
}//operator<<

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