void drawPolyline(pointList list)
{
if(list.size() < 2)
return;
glBegin(GL_LINE_STRIP);
{
pointList::const_iterator endIt = list.end();
for(pointList::const_iterator it = list.begin(); it != endIt; ++it) {
glVertex2d(it->first, it->second);
}
}
glEnd();
}
/*
* find corners with maximal cornerness
*/
bool harrisCorners::findCornerMaxima(const channel& cornerness,
channel& cornersOnly,
pointList& cornerMax) const {
if (cornerness.empty()) {
cornersOnly.clear();
cornerMax.clear();
return true;
}
const parameters& par = getParameters();
const float corner = par.cornerValue/255.0f;
const float noCorner = par.noCornerValue/255.0f;
localMaxima<float> lmax;
localMaxima<float>::parameters lmaxPar(par.localMaximaParameters);
lmaxPar.noMaxValue = noCorner;
lmaxPar.maxNumber = par.maximumCorners;
lmax.setParameters(lmaxPar);
if (lmax.apply(cornerness,cornersOnly,cornerMax)) {
pointList::iterator it;
int i;
for (it=cornerMax.begin(),i=0;
(it!=cornerMax.end());
++it) {
cornersOnly.at(*it) = corner;
}
for (;it!=cornerMax.end();++it) {
cornersOnly.at(*it) = noCorner;
}
return true;
}
return false;
}