/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see .
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see
* or contact Peter Baumann via .
/
/**
* SOURCE: mitera.cc
*
* MODULE: raslib
* CLASS: r_MiterArea
*
*/
#include "raslib/mitera.hh"
#include "raslib/minterval.hh"
#include "raslib/rmdebug.hh"
r_MiterArea::r_MiterArea( const r_Minterval* newIterDom,
const r_Minterval* newImgDom ) throw(r_Error)
: iterDom(newIterDom), imgDom(newImgDom), done(false)
{
RMDBGENTER( 1, RMDebug::module_raslib, "r_MiterArea", "r_MiterArea()");
if (imgDom->dimension() != iterDom->dimension())
{
//in this case we have an undefined situation
RMInit::logOut << "r_MiterArea::rMiterArea(" << iterDom << ", " << imgDom << ") dimension mismatch" << endl;
throw r_Error(INTERVALSWITHDIFFERENTDIMENSION);
}
if(!imgDom->is_origin_fixed() ||
!imgDom->is_high_fixed())
{
//in this case we have an undefined situation
RMInit::logOut << "r_MiterArea::rMiterArea(" << iterDom << ", " << imgDom << ") imgDom is opened" << endl;
throw r_Error(INTERVALOPEN);
}
if(!iterDom->is_origin_fixed() ||
!iterDom->is_high_fixed())
{
//in this case we have an undefined situation
RMInit::logOut << "r_MiterArea::rMiterArea(" << iterDom << ", " << imgDom << ") iterDom is opened" << endl;
throw r_Error(INTERVALOPEN);
}
// dimensionality of both iterDom and imgDom
r_Dimension dim = imgDom->dimension();
// stores the increments
incArrIter = new incArrElem[dim];
for(r_Dimension i=0; iget_extent()[i] / iterDom->get_extent()[i]) +
( imgDom->get_extent()[i] % iterDom->get_extent()[i] != 0 );
RMDBGMIDDLE( 4, RMDebug::module_raslib, "r_MiterArea", "repeat dim " << i << ": " << incArrIter[i].repeat );
}
reset();
RMDBGEXIT( 1, RMDebug::module_raslib, "r_MiterArea", "r_MiterArea()" );
}
r_MiterArea::~r_MiterArea()
{
delete [] incArrIter;
}
void
r_MiterArea::reset()
{
done = false;
for( int i=0; idimension(); i++ ) {
incArrIter[i].curr = 0;
}
}
r_Minterval
r_MiterArea::nextArea()
{
r_Dimension i = 0;
if(done)
return retVal;
r_Minterval currDom(iterDom->dimension());
// calculate new result domain here
if(!done) {
for(i=0; i < iterDom->dimension(); i++) {
currDom << r_Sinterval( (*imgDom)[i].low() + incArrIter[i].curr*iterDom->get_extent()[i],
(*imgDom)[i].low() + (incArrIter[i].curr+1)*iterDom->get_extent()[i]
- 1 );
}
}
retVal = currDom.intersection_with((*imgDom));
// increment dimensions
for(i=0; i < iterDom->dimension(); i++) {
incArrIter[i].curr++;
if(incArrIter[i].curr < incArrIter[i].repeat) {
// no overflow in this dimension
break;
} else {
// overflow in this dimension
incArrIter[i].curr = 0;
}
}
if( i == iterDom->dimension() ) {
// overflow in last dimension
done = true;
}
return retVal;
}
bool
r_MiterArea::isDone()
{
return done;
}