public bool _isSelect(int nX, int nY, int nDistance = 3)
{
Rect2I rect_ = new Rect2I(mBeg, mEnd);
rect_._offset(-nDistance, -nDistance);
rect_._sizeOffset(nDistance * 2, nDistance * 2);
if (!rect_._contain(nX, nY))
{
return false;
}
double distance_ = this._distance(nX, nY);
if (distance_ < nDistance)
{
return true;
}
return false;
}
