bool IOctTreeInsertable.HitTest(Projection projection, BoundingRect rect, bool onlyInside)
{ // kommt dran bei GetObjectsCloseTo
if (onlyInside)
{
return(false);
}
else
{
ClipRect clr = new ClipRect(ref rect);
// eine Linie machen, die bestimmt über das rechteck hinaus geht
GeoPoint2D sp2d = projection.ProjectUnscaled(start);
GeoVector2D dir2d = projection.ProjectUnscaled(dir);
double max = 0.0;
max = Math.Max(max, sp2d | rect.GetLowerLeft());
max = Math.Max(max, sp2d | rect.GetLowerRight());
max = Math.Max(max, sp2d | rect.GetUpperLeft());
max = Math.Max(max, sp2d | rect.GetUpperRight());
GeoPoint2D ep2d = sp2d + max * dir2d;
return(clr.LineHitTest(sp2d, ep2d));
}
}
