Files
secondo/Algebras/MRegionOps2/Refinement3.cpp
2026-01-23 17:03:45 +08:00

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/*
----
This file is part of SECONDO.
Copyright (C) 2008, University in Hagen, Department of Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
//paragraph [1] Title: [{\Large \bf \begin {center}] [\end {center}}]
//[TOC] [\tableofcontents]
//[ue] [\"u]
//[ae] [\"a]
//[oe] [\"o]
//[x] [$\times $]
//[->] [$\rightarrow $]
//[pow] [\verb+^+]
[1] Headerfile of the Point and Vector classes
April - November 2008, M. H[oe]ger for bachelor thesis.
[2] Implementation with exakt dataype
Oktober 2014 - Maerz 2015, S. Schroeer for master thesis.
[TOC]
1 Introduction
2 Defines and Includes
*/
#include "Refinement3.h"
/*
1.1.1.1 ~instant2MPQ~
This method converts instant type i to mpq\_class without loss of precision
*/
namespace temporalalgebra{
mpq_class instant2MPQ( const Instant i )
{
mpq_class res = mpq_class(0);
int days = (int)i.ToDouble();
const int rest = i.GetAllMilliSeconds();
const int milliseconds = 86400000;
res = days + mpq_class(rest, milliseconds);
res.canonicalize();
return res;
}
/*
1.1 Class implementation
1.1.1 The constructor ~RefinementPartition3~
from MovingRegionAlgebra3
calculate time interval (sum from all intervals - more detailed
to every time interval store in which interval in the MRegion it's
if aPos / bPos = -1 than it's a leck
*/
RefinementPartition3::RefinementPartition3( MRegion2& m1,
MRegion2& m2)
{
assert( m1.IsDefined() );
assert( m2.IsDefined() );
iv.clear();
vur.clear();
vup.clear();
//REF_DEBUG("RefinedmentPartition called ");
cout << "RefinedmentPartition called " << endl;
int no1 = m1.GetNoComponents();
int no2 = m2.GetNoComponents();
if(no1 + no2 == 0){ // both mappings are empty
REF_DEBUG("empty mappings");
return;
}
if(no2==0){ // m2 is empty
REF_DEBUG("m2 is empty");
iv.reserve(no1);
vur.reserve(no1);
vup.reserve(no1);
URegionEmb2 u1;
for(int i=0;i<no1;i++){
m1.Get(i,u1);
precTimeInterval pi(u1.timeInterval, u1.pInterval,
m1.GetPreciseInstants());
AddUnits(pi, i,-1);
}
return;
}
if(no1==0){ // m1 is empty
REF_DEBUG("m1 is empty " );
iv.reserve(no2);
vur.reserve(no2);
vup.reserve(no2);
URegionEmb2 u2;
for(int i=0;i<no2;i++){
m2.Get(i,u2);
precTimeInterval pi(u2.timeInterval, u2.pInterval,
m2.GetPreciseInstants());
AddUnits(pi,-1,i);
}
return;
}
// both arguments are non-empty
cout << "both arguments are non-empty " << endl;
int maxsize = (no1 + no2 + 2) * 2;
iv.reserve(maxsize);
vur.reserve(maxsize);
vup.reserve(maxsize);
URegionEmb2 u1p;
URegionEmb2 u2p;
m1.Get(0,u1p);
m2.Get(0,u2p);
// create editable units from the constant ones
precTimeInterval t1(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
precTimeInterval t2(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
int pos1 = 0;
int pos2 = 0;
REF_DEBUG("both arguments are non-empty");
REF_DEBUG("no1 = " << no1 );
REF_DEBUG("no2 = " << no2 );
while( (pos1<no1) && (pos2<no2) ){
REF_DEBUG("pos1 = " << pos1 );
REF_DEBUG("pos2 = " << pos2 );
REF_DEBUG("t1 = " << t1);
REF_DEBUG("t2 = " << t2);
// both arguments have units
cout << "both arguments are non-empty" << endl;
if(cmp(t1.start, t2.start) < 0) {
REF_DEBUG("case 1: t1 starts before t2 " );
// t1 starts before t2
if(cmp(t1.end, t2.start) < 0){ // t1 before t2
REF_DEBUG("case 1.1: t1 ends before t2 starts" );
AddUnits(t1, pos1, -1);
pos1++;
if(pos1 < no1){
m1.Get(pos1, u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
} else if(cmp(t1.end, t2.start) > 0){
REF_DEBUG("case 1.2: t1 ends after t2 starts" );
// overlapping intervals
AddUnits(pos1, -1, t1.start, t2.start, t1.lc, !t2.lc);
t1.start = t2.start;
t1.lc = t2.lc;
} else { // u1.timeInterval.end == u2.timeInterval.start
REF_DEBUG("case 1.3: t1 ends when t2 starts ");
if( !t1.rc || !t2.lc){
REF_DEBUG("case 1.3.1: t1 ends before t2 starts (closeness) " );
// u1 before u2
AddUnits(t1, pos1, -1);
pos1++;
if(pos1 < no1){
m1.Get(pos1,u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
} else { // intervals have a common instant
REF_DEBUG("case 1.3.2: t2 ends when t2 starts (common instant)");
AddUnits(pos1, -1, t1.start, t1.end, t1.lc, false);
t1.lc = true;
t1.start = t2.start;
}
}
} else if(cmp(t2.start, t1.start) < 0){
REF_DEBUG("case 2: t2 starts before t1 starts" );
// symmetric case , u2 starts before u1
if(cmp(t2.end, t1.start) < 0){ // u2 before u1
REF_DEBUG("case 2.1: t2 ends before t1 ends ");
AddUnits(t2, -1, pos2);
pos2++;
if(pos2 < no2){
m2.Get(pos2,u2p);
t2 = precTimeInterval(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
}
} else if(cmp(t2.end, t1.start) > 0){
REF_DEBUG("case 2.2: t2 ends after t1 starts");
// overlapping intervals
AddUnits(-1, pos2, t2.start, t1.start, t2.lc, !t1.lc);
t2.start = t1.start;
t2.lc = t1.lc;
} else { // u1.timeInterval.end == u2.timeInterval.start
REF_DEBUG("case 2.3: t2 ends when t1 starts" );
if( !t2.rc || !t1.lc){
REF_DEBUG("case 2.3.1: t2 ends before t1 starts (closeness)" );
// u1 before u2
AddUnits(t2, -1, pos2);
pos2++;
if(pos2 < no2){
m2.Get(pos2,u2p);
t2 = precTimeInterval(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
}
} else { // intervals have a common instant
REF_DEBUG("case 2.3.2: t2 ends when t1 starts (common instant)");
AddUnits(-1, pos2, t2.start, t2.end, t2.lc, false);
t2.lc = true;
t2.start = t1.start;
}
}
} else { // u1.timeInterval.start == u2.timeInterval.start
REF_DEBUG("case 3: t1 and t2 start at the same instant" );
// both intervals start at the same instant
if(t1.lc != t2.lc){
REF_DEBUG("case 3.1: membership of the instant differs");
if(t1.lc){ // add a single instant interval
AddUnits(pos1, -1, t1.start, t1.start, true,true);
if(t1.start == t1.end){ // u1 exhausted
pos1++;
if(pos1< no1){
m1.Get(pos1,u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
} else {
t1.lc = false;
}
} else {
// symmetric case
AddUnits(-1, pos2, t2.start, t2.start, true, true);
if(cmp(t2.start, t2.end) == 0){
pos2++;
if(pos2 < no2){
m2.Get(pos2, u2p);
t2 = precTimeInterval(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
}
} else {
t2.lc = false;
}
}
} else { // intervals start exact at the same instant
REF_DEBUG("case 3.2: intervalls start exact together");
if(cmp(t1.end, t2.end) < 0){
REF_DEBUG("case 3.2.1: t1 ends before t2 ends");
AddUnits(t1, pos1, pos2);
t2.start = t1.end;
t2.lc = !t1.rc;
pos1++;
if(pos1<no1){
m1.Get(pos1,u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
} else if (cmp(t2.end, t1.end) < 0){
REF_DEBUG("case 3.2.2: t2 ends before t1 ends" );
AddUnits(t2, pos1, pos2);
t1.start = t2.end;
t1.lc = !t2.rc;
pos2++;
if(pos2 < no2){
m2.Get(pos2,u2p);
t2 = precTimeInterval(u2p.timeInterval,u2p.pInterval,
m2.GetPreciseInstants());
}
} else { // both units end at the same instant
REF_DEBUG("case 3.2.3: both intervals ends at the same instant");
if(t1.rc == t2.rc){ // equal intervals
REF_DEBUG("case 3.2.3.1: intervals are equal" );
AddUnits(t1, pos1, pos2);
pos1++;
if(pos1 < no1){
m1.Get(pos1,u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
pos2++;
if(pos2 < no2){
m2.Get(pos2, u2p);
t2 = precTimeInterval(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
}
} else {
REF_DEBUG("case 3.2.3.2: intervals differ at right closeness");
// process common part
AddUnits(pos1,pos2,t1.start, t1.end, t1.lc, false);
if(t1.rc){
pos2++;
if(pos2<no2){
m2.Get(pos2,u2p);
t2 = precTimeInterval(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
}
t1.lc = true;
t1.start = t1.end;
} else {
pos1++;
if(pos1 < no1){
m1.Get(pos1,u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
t2.lc = true;
t2.start = t2.end;
}
}
}
}
}
}
REF_DEBUG("one of the arguments is finished");
// process remainder of m1
while(pos1 < no1){
cout << "process remainder of m1, pos 1 < n01 " << endl;
AddUnits(t1, pos1, -1);
pos1++;
if(pos1<no1){
m1.Get(pos1,u1p);
t1 = precTimeInterval(u1p.timeInterval, u1p.pInterval,
m1.GetPreciseInstants());
}
}
// process remainder of m2
while(pos2 < no2){
cout << "process remainder of m2, pos2 < n02 " << endl;
AddUnits(t2, -1, pos2);
pos2++;
if(pos2<no2){
m2.Get(pos2,u2p);
t2 = precTimeInterval(u2p.timeInterval, u2p.pInterval,
m2.GetPreciseInstants());
}
}
}
/*
1.1.1 ~AddUnits~
*/
void RefinementPartition3::AddUnits(const precTimeInterval pti,
const int urPos, const int upPos)
{
assert(urPos!=-1 || upPos!=-1);
if ((cmp(pti.start, pti.end) == 0) && !(pti.lc && pti.rc)) //invalid interval
{
return;
}
iv.push_back(pti);
vur.push_back(urPos);
vup.push_back(upPos);
}
void RefinementPartition3::AddUnits(const int urPos, const int upPos,
const mpq_class start, const mpq_class end,
const bool lc, const bool rc)
{
assert(urPos!=-1 || upPos!=-1);
if ((cmp(start, end) == 0) && !(lc && rc)) // invalid interval
{
return;
}
precTimeInterval pti(start, end, lc, rc);
iv.push_back(pti);
vur.push_back(urPos);
vup.push_back(upPos);
}
/*
1.1.1 ~Size~
*/
unsigned int RefinementPartition3::Size(void)
{
return iv.size();
}
/*
1.1.1 ~Get~
*/
void RefinementPartition3::Get(const unsigned int pos, precTimeInterval& civ,
int& ur, int& up)
{
assert(pos < iv.size());
civ = iv[pos];
ur = vur[pos];
up = vup[pos];
}
} // end of namespace