public bool IsInteractived(ContourEnvelope envelope, ref bool fullInternal)
{
if (envelope.MaxX < _minX || envelope.MinX > _maxX || envelope.MinY > _maxY || envelope._maxY < _minY)
{
return(false);
}
fullInternal = envelope.MinX > _minX && envelope._maxX <_maxX && envelope.MinY> _minY && envelope._maxY < _maxY;
return(true);
}
public bool IsInteractived(ContourEnvelope envelope)
{
if (envelope.MaxX < _minX ||
envelope.MinX > _maxX ||
envelope.MinY > _maxY ||
envelope.MaxY < _minY)
{
return(false);
}
return(true);
}
public ContourEnvelope Intersect(ContourEnvelope a)
{
if (a.MaxX < _minX || a.MinX > _maxX || a.MinY > _maxY || a.MinY < _minY)
{
return(null);
}
float minX = Math.Max(_minX, a.MinX);
float minY = Math.Max(_minY, a.MinY);
float maxX = Math.Min(_maxX, a.MaxX);
float maxY = Math.Min(_maxY, a.MaxY);
return(new ContourEnvelope(minX, maxX, minY, maxY));
}
public void UpdateEnvelope()
{
float minX = float.MaxValue;
float minY = float.MaxValue;
float maxX = float.MinValue;
float maxY = float.MinValue;
unsafe
{
fixed(PointF *ptr0 = this.Points)
{
PointF *ptr = ptr0;
for (int i = 0; i < this.Count; i++, ptr++)
{
if (ptr->X < minX)
{
minX = ptr->X;
}
if (ptr->X > maxX)
{
maxX = ptr->X;
}
if (ptr->Y < minY)
{
minY = ptr->Y;
}
if (ptr->Y > maxY)
{
maxY = ptr->Y;
}
}
}
}
_envelope = new ContourEnvelope(minX, maxX, minY, maxY);
}
