protected override void Serialize(IBoundableGraphic graphic, GraphicAnnotationSequenceItem serializationState)
{
if (!graphic.Visible)
{
return; // if the graphic is not visible, don't serialize it!
}
GraphicAnnotationSequenceItem.GraphicObjectSequenceItem annotationElement = new GraphicAnnotationSequenceItem.GraphicObjectSequenceItem();
graphic.CoordinateSystem = CoordinateSystem.Source;
try
{
annotationElement.GraphicAnnotationUnits = GraphicAnnotationSequenceItem.GraphicAnnotationUnits.Pixel;
annotationElement.GraphicDimensions = 2;
annotationElement.GraphicFilled = GraphicAnnotationSequenceItem.GraphicFilled.N;
SizeF halfDims = new SizeF(graphic.Width / 2, graphic.Height / 2);
if (FloatComparer.AreEqual(graphic.Width, graphic.Height)) // check if graphic is a circle
{
annotationElement.GraphicType = GraphicAnnotationSequenceItem.GraphicType.Circle;
annotationElement.NumberOfGraphicPoints = 2;
PointF[] list = new PointF[2];
list[0] = graphic.TopLeft + halfDims; // centre of circle
list[1] = graphic.TopLeft + new SizeF(0, halfDims.Height); // any point on the circle
annotationElement.GraphicData = list;
}
else
{
annotationElement.GraphicType = GraphicAnnotationSequenceItem.GraphicType.Ellipse;
annotationElement.NumberOfGraphicPoints = 4;
int offset = graphic.Width < graphic.Height ? 2 : 0; // offset list by 2 if major axis is vertical
PointF[] list = new PointF[4];
list[(offset + 0) % 4] = graphic.TopLeft + new SizeF(0, halfDims.Height); // left point of horizontal axis
list[(offset + 1) % 4] = graphic.TopLeft + new SizeF(graphic.Width, halfDims.Height); // right point of horizontal axis
list[(offset + 2) % 4] = graphic.TopLeft + new SizeF(halfDims.Width, 0); // top point of vertical axis
list[(offset + 3) % 4] = graphic.TopLeft + new SizeF(halfDims.Width, graphic.Height); // bottom point of vertical axis
annotationElement.GraphicData = list;
}
}
finally
{
graphic.ResetCoordinateSystem();
}
serializationState.AppendGraphicObjectSequence(annotationElement);
}
protected override void Serialize(DicomEllipseGraphic graphic, GraphicAnnotationSequenceItem serializationState)
{
if (!graphic.Visible)
{
return; // if the graphic is not visible, don't serialize it!
}
GraphicAnnotationSequenceItem.GraphicObjectSequenceItem annotationElement = new GraphicAnnotationSequenceItem.GraphicObjectSequenceItem();
graphic.CoordinateSystem = CoordinateSystem.Source;
try
{
annotationElement.GraphicAnnotationUnits = GraphicAnnotationSequenceItem.GraphicAnnotationUnits.Pixel;
annotationElement.GraphicDimensions = 2;
annotationElement.GraphicFilled = GraphicAnnotationSequenceItem.GraphicFilled.N;
if (graphic.IsRegular) // check if graphic is a circle
{
annotationElement.GraphicType = GraphicAnnotationSequenceItem.GraphicType.Circle;
annotationElement.NumberOfGraphicPoints = 2;
PointF[] list = new PointF[2];
list[0] = Vector.Midpoint(graphic.MajorAxisPoint1, graphic.MajorAxisPoint2); // centre of circle
list[1] = graphic.MajorAxisPoint1; // any point on the circle
annotationElement.GraphicData = list;
}
else
{
annotationElement.GraphicType = GraphicAnnotationSequenceItem.GraphicType.Ellipse;
annotationElement.NumberOfGraphicPoints = 4;
PointF[] list = new PointF[4];
list[0] = graphic.MajorAxisPoint1; // left point of major axis
list[1] = graphic.MajorAxisPoint2; // right point of major axis
list[2] = graphic.MinorAxisPoint1; // top point of minor axis
list[3] = graphic.MinorAxisPoint2; // bottom point of minor axis
annotationElement.GraphicData = list;
}
}
finally
{
graphic.ResetCoordinateSystem();
}
serializationState.AppendGraphicObjectSequence(annotationElement);
}
protected override void Serialize(IPointsGraphic graphic, GraphicAnnotationSequenceItem serializationState)
{
if (!graphic.Visible)
{
return; // if the graphic is not visible, don't serialize it!
}
GraphicAnnotationSequenceItem.GraphicObjectSequenceItem annotationElement = new GraphicAnnotationSequenceItem.GraphicObjectSequenceItem();
graphic.CoordinateSystem = CoordinateSystem.Source;
try
{
IList <PointF> polyline = graphic.Points;
annotationElement.GraphicAnnotationUnits = GraphicAnnotationSequenceItem.GraphicAnnotationUnits.Pixel;
annotationElement.GraphicDimensions = 2;
annotationElement.GraphicType = GraphicAnnotationSequenceItem.GraphicType.Interpolated;
annotationElement.NumberOfGraphicPoints = polyline.Count;
// add shape vertices
List <PointF> list = new List <PointF>(polyline.Count);
for (int n = 0; n < polyline.Count; n++)
{
list.Add(polyline[n]);
}
annotationElement.GraphicData = list.ToArray();
if (FloatComparer.AreEqual(list[0], list[list.Count - 1]))
{
// shape is closed - we are required to indicate fill state
annotationElement.GraphicFilled = GraphicAnnotationSequenceItem.GraphicFilled.N;
}
}
finally
{
graphic.ResetCoordinateSystem();
}
serializationState.AppendGraphicObjectSequence(annotationElement);
}
protected override void Serialize(IBoundableGraphic graphic, GraphicAnnotationSequenceItem serializationState)
{
if (!graphic.Visible)
{
return; // if the graphic is not visible, don't serialize it!
}
GraphicAnnotationSequenceItem.GraphicObjectSequenceItem annotationElement = new GraphicAnnotationSequenceItem.GraphicObjectSequenceItem();
graphic.CoordinateSystem = CoordinateSystem.Source;
try
{
annotationElement.GraphicAnnotationUnits = GraphicAnnotationSequenceItem.GraphicAnnotationUnits.Pixel;
annotationElement.GraphicDimensions = 2;
annotationElement.GraphicType = GraphicAnnotationSequenceItem.GraphicType.Polyline;
annotationElement.NumberOfGraphicPoints = 5;
RectangleF bounds = graphic.BoundingBox;
// add shape vertices
PointF[] list = new PointF[5];
list[0] = bounds.Location;
list[1] = bounds.Location + new SizeF(bounds.Width, 0);
list[2] = bounds.Location + bounds.Size;
list[3] = bounds.Location + new SizeF(0, bounds.Height);
list[4] = bounds.Location;
annotationElement.GraphicData = list;
annotationElement.GraphicFilled = GraphicAnnotationSequenceItem.GraphicFilled.N;
}
finally
{
graphic.ResetCoordinateSystem();
}
serializationState.AppendGraphicObjectSequence(annotationElement);
}
private static IList <PointF> GetGraphicDataAsSourceCoordinates(RectangleF displayedArea, GraphicAnnotationSequenceItem.GraphicObjectSequenceItem graphicItem)
{
if (graphicItem.GraphicAnnotationUnits == GraphicAnnotationSequenceItem.GraphicAnnotationUnits.Display)
{
return(graphicItem.GraphicData.Select(point => GetPointInSourceCoordinates(displayedArea, point)).ToList().AsReadOnly());
}
else
{
return(graphicItem.GraphicData.Select(point => new PointF(point.X, point.Y)).ToList().AsReadOnly());
}
}
private static IList <PointF> GetGraphicDataAsSourceCoordinates(RectangleF displayedArea, GraphicAnnotationSequenceItem.GraphicObjectSequenceItem graphicItem)
{
List <PointF> list;
if (graphicItem.GraphicAnnotationUnits == GraphicAnnotationSequenceItem.GraphicAnnotationUnits.Display)
{
list = new List <PointF>(graphicItem.NumberOfGraphicPoints);
foreach (PointF point in graphicItem.GraphicData)
{
list.Add(GetPointInSourceCoordinates(displayedArea, point));
}
}
else
{
// offset to account for our 0,0 origin versyus DICOM 1,1 origin
list = new List <PointF>(graphicItem.NumberOfGraphicPoints);
foreach (PointF point in graphicItem.GraphicData)
{
list.Add(new PointF(point.X - 1, point.Y - 1));
}
}
return(list.AsReadOnly());
}