void EdgeItem::UpdatePath( void ){
// if( points )
// delete []points;
points.clear();
QPainterPath m_path;
m_path.moveTo(0, 0);
QPointF control = MidPoint();
double dist = DistancePoint(QPointF(0, 0) , control) + DistancePoint(control, m_endPoint);
int maxPointsCount = 8;
pointsCount = (int)(dist / m_selectDistance) + 1;
if(pointsCount > maxPointsCount ){
pointsCount = maxPointsCount;
}
// points = new QPointF[pointsCount];
QPointF point;
for (int i = 0; i < pointsCount; i++){
point = BezierValue( (double) i / ( pointsCount - 1), control );
m_path.lineTo( point );
// m_path.addEllipse(point, 3,3);
points << point + pos();
}
setPath( m_path );
UpdateArrow();
}
void DistanceGrid::fromRgba(const u8 *pImageData) {
for (s32 i = 0; i < m_szx * m_szy; ++i) {
const u8 r = *pImageData++;
const u8 g = *pImageData++;
const u8 b = *pImageData++;
const u8 a = *pImageData++;
if (a < 128) {
m_gridInside[i] = DistancePoint(0.0f, 0.0f);
m_gridOutside[i] = DistancePoint(1.0f, 1.0f);
} else {
m_gridInside[i] = DistancePoint(1.0f, 1.0f);
m_gridOutside[i] = DistancePoint(0.0f, 0.0f);
}
}
}
qreal EdgeItem::Distance( QPointF point){
// qDebug()<<"Distance point: "<<point<<", pos: "<<pos()<<", end: "<<endPoint();
qreal minDist = 99999;
qreal dist;
for(int i = 0; i < points.count(); i++){
// qDebug()<<"dist: "<<dist;
dist = DistancePoint( points[i], point);
if( minDist > dist ){
minDist = dist;
// qDebug()<<"min";
}
}
return minDist;
}
