double DLibshuff::dCalculate(int x, int y){
double sum = 0;
minX = getMinX(x);
if (m->control_pressed) { return sum; }
minXY = getMinXY(x, y);
if (m->control_pressed) { return sum; }
vector<int> nx = calcN(minX);
if (m->control_pressed) { return sum; }
vector<int> nxy = calcN(minXY);
if (m->control_pressed) { return sum; }
for(int i=0;i<numDXs;i++){
float h = (nx[i] - nxy[i]) / (float) groupSizes[x];
sum += h * h * stepSize;
}
return sum;
}
/**
* gets the size of a bounding box of a quad
*/
vector getSize(quadri q) {
vector siz,
minXY = getMinXY(q),
maxXY = getMaxXY(q);
siz.x = maxXY.x-minXY.x;
siz.y = maxXY.y-minXY.y;
siz.z = 0.0;
return siz;
}
/**
* gets the midpoint of a bounding box of a quad
*/
vector getMidPoint(quadri q) {
vector mid,
minXY = getMinXY(q),
maxXY = getMaxXY(q);
mid.x = 0.5*(minXY.x+maxXY.x);
mid.y = 0.5*(minXY.y+maxXY.y);
mid.z = 0.0;
return mid;
}