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();
}
void mouse(int button, int state, int x, int y)
{
(void)x;
(void)y;
if(state != GLUT_DOWN)
return;
if(button == GLUT_LEFT_BUTTON) {
g_pointList.push_back(point((GLfloat) x, (GLfloat) y));
std::cout << "X : " << x << " | Y : " << y << std::endl;
}
if(button == GLUT_RIGHT_BUTTON)
g_pointList.clear();
std::cout << "DATA SIZE : " << g_pointList.size() << std::endl;
#ifdef __GNUC__
display();
#endif // __GNUC__
}
/*
* 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;
}
/*
* operates on a copy of the given %parameters.
* @param src channel with the source data.
* @param dest list of corners
* @return true if apply successful or false otherwise.
*/
bool harrisCorners::apply(const channel& src,pointList& dest) const {
const parameters& param = getParameters();
channel gx,gy,fxy,tmp,d;
float maxCornerness;
if (!gradient.apply(src,gx,gy)) {
appendStatusString(gradient);
dest.clear();
return false;
}
getSecondOrder(gx,gy,fxy);
getCornerness(gx,fxy,gy,param.scale,tmp,maxCornerness);
return findCornerMaxima(tmp,d,dest);
};
