/// <summary>
/// Gets two points defining the axis of the object.
/// </summary>
///
public LineSegment GetAxis(AxisOrientation axis)
{
double x1, y1;
double x2, y2;
if (axis == AxisOrientation.Horizontal)
{
y1 = Math.Cos(-Angle - Math.PI) * Rectangle.Height / 2.0;
x1 = Math.Sin(-Angle - Math.PI) * Rectangle.Width / 2.0;
y2 = Math.Cos(-Angle) * Rectangle.Height / 2.0;
x2 = Math.Sin(-Angle) * Rectangle.Width / 2.0;
}
else
{
y1 = Math.Cos(-(Angle + Math.PI / 2) - Math.PI) * Rectangle.Height / 2.0;
x1 = Math.Sin(-(Angle + Math.PI / 2) - Math.PI) * Rectangle.Width / 2.0;
y2 = Math.Cos(-(Angle + Math.PI / 2)) * Rectangle.Height / 2.0;
x2 = Math.Sin(-(Angle + Math.PI / 2)) * Rectangle.Width / 2.0;
}
Point start = new Point((float)(Center.X + x1), (float)(Center.Y + y1));
Point end = new Point((float)(Center.X + x2), (float)(Center.Y + y2));
if (start.DistanceTo(end) == 0)
{
return(null);
}
return(new LineSegment(start, end));
}
/// <summary>
/// Initializes a new instance of the <see cref="Blob"/> class.
/// </summary>
///
/// <param name="source">Source blob to copy.</param>
///
/// <remarks><para>This copy constructor leaves <see cref="Image"/> property not initialized. The blob's
/// image may be extracted later using <see cref="BlobCounterBase.ExtractBlobsImage( Bitmap, Blob, bool )"/>
/// or <see cref="BlobCounterBase.ExtractBlobsImage( UnmanagedImage, Blob, bool )"/> method.</para></remarks>
///
public Blob(Blob source)
{
// copy everything except image
id = source.id;
rect = source.rect;
cog = source.cog;
area = source.area;
fullness = source.fullness;
colorMean = source.colorMean;
colorStdDev = source.colorStdDev;
}
/// <summary>
/// Initializes a new instance of the <see cref="Blob"/> class.
/// </summary>
///
/// <param name="source">Source blob to copy.</param>
///
/// <remarks><para>This copy constructor leaves <see cref="Image"/> property not initialized. The blob's
/// image may be extracted later using <see cref="BlobCounterBase.ExtractBlobsImage( Bitmap, Blob, bool )"/>
/// or <see cref="BlobCounterBase.ExtractBlobsImage( UnmanagedImage, Blob, bool )"/> method.</para></remarks>
///
public Blob( Blob source )
{
// copy everything except image
id = source.id;
rect = source.rect;
cog = source.cog;
area = source.area;
fullness = source.fullness;
colorMean = source.colorMean;
colorStdDev = source.colorStdDev;
}