/// <summary>
/// Constructs a WritableRaster with the given SampleModel. The
/// WritableRaster's upper left corner is origin and it is the
/// same size as the SampleModel. A DataBuffer large enough to
/// describe the WritableRaster is automatically created. </summary>
/// <param name="sampleModel"> The SampleModel that specifies the layout. </param>
/// <param name="origin"> The Point that specifies the origin. </param>
/// <exception cref="RasterFormatException"> if computing either
/// <code>origin.x + sampleModel.getWidth()</code> or
/// <code>origin.y + sampleModel.getHeight()</code> results
/// in integer overflow </exception>
protected internal WritableRaster(SampleModel sampleModel, Point origin) : this(sampleModel, sampleModel.CreateDataBuffer(), new Rectangle(origin.x, origin.y, sampleModel.Width, sampleModel.Height), origin, null)
{
}
