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/*
* KSeg
* Copyright (C) 1999-2006 Ilya Baran
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Send comments and/or bug reports to:
* ibaran@mit.edu
*/
#include <stdio.h>
#include "G_object.H"
void G_locusObject::update()
{
if(IS_TRANSFORM(where->getDescendType())) {
locus = parent(0)->getLocus();
updateTransform();
}
else switch(where->getDescendType()) {
case G_OBJECT_LOCUS:
if(parent(1)->getGeoRef()->getType() == G_POINT)
generatePointLocus();
else
generateObjectLocus();
break;
}
if(!locus.isValid()) where->setExists(false);
return;
}
void G_locusObject::generateObjectLocus()
{
QPtrList<G_geometry> myList;
G_refs updateQueue;
int i;
double p;
double oldP = ((G_pointObject *)parent(0))->getP();
updateQueue.topologicalSort(where->getParents()[0],
where->getParents()[1]);
updateQueue.append(where->getParents()[1]);
for(i = 0; i < maxSamples; i++) {
p = double(i) / double(maxSamples - 1);
((G_pointObject *)parent(0))->setP(p);
updateQueue.update(true); //true means do not reparse formulas
if(parent(1)->getGeoRef()->isValid())
myList.append(parent(1)->getGeoRef()->copy());
}
((G_pointObject *)parent(0))->setP(oldP);
updateQueue.update(true); //true means do not reparse formulas
locus = G_locus(myList);
return;
}
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