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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup freestyle
* \brief Functions taking 1D input
*/
#include "AdvancedFunctions1D.h"
#include "Canvas.h"
#include "../view_map/SteerableViewMap.h"
namespace Freestyle::Functions1D {
int GetSteerableViewMapDensityF1D::operator()(Interface1D &inter)
{
SteerableViewMap *svm = Canvas::getInstance()->getSteerableViewMap();
Interface0DIterator it = inter.pointsBegin(_sampling);
Interface0DIterator itnext = it;
++itnext;
FEdge *fe;
uint nSVM;
vector<float> values;
while (!itnext.isEnd()) {
Interface0D &i0D = (*it);
Interface0D &i0Dnext = (*itnext);
fe = i0D.getFEdge(i0Dnext);
if (fe == nullptr) {
cerr << "GetSteerableViewMapDensityF1D warning: no FEdge between " << i0D.getId() << " and "
<< i0Dnext.getId() << endl;
// compute the direction between these two ???
Vec2f dir = i0Dnext.getPoint2D() - i0D.getPoint2D();
nSVM = svm->getSVMNumber(dir);
}
else {
nSVM = svm->getSVMNumber(fe->getId().getFirst());
}
Vec2r m((i0D.getProjectedX() + i0Dnext.getProjectedX()) / 2.0,
(i0D.getProjectedY() + i0Dnext.getProjectedY()) / 2.0);
values.push_back(svm->readSteerableViewMapPixel(nSVM, _level, int(m[0]), int(m[1])));
++it;
++itnext;
}
float res, res_tmp;
vector<float>::iterator v = values.begin(), vend = values.end();
uint size = 1;
switch (_integration) {
case MIN:
res = *v;
++v;
for (; v != vend; ++v) {
res_tmp = *v;
if (res_tmp < res) {
res = res_tmp;
}
}
break;
case MAX:
res = *v;
++v;
for (; v != vend; ++v) {
res_tmp = *v;
if (res_tmp > res) {
res = res_tmp;
}
}
break;
case FIRST:
res = *v;
break;
case LAST:
--vend;
res = *vend;
break;
case MEAN:
default:
res = *v;
++v;
for (; v != vend; ++v, ++size) {
res += *v;
}
res /= (size ? size : 1);
break;
}
result = res;
return 0;
}
int GetDirectionalViewMapDensityF1D::operator()(Interface1D &inter)
{
// soc unsigned size;
result = integrate(_fun, inter.pointsBegin(_sampling), inter.pointsEnd(_sampling), _integration);
return 0;
}
int GetCompleteViewMapDensityF1D::operator()(Interface1D &inter)
{
// soc unsigned size;
// Id id = inter.getId(); /* UNUSED */
result = integrate(_fun, inter.pointsBegin(_sampling), inter.pointsEnd(_sampling), _integration);
return 0;
}
int GetViewMapGradientNormF1D::operator()(Interface1D &inter)
{
result = integrate(
_func, inter.pointsBegin(_sampling), inter.pointsEnd(_sampling), _integration);
return 0;
}
} // namespace Freestyle::Functions1D
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