/// <summary>
/// Rebuild a quadrilateral to help drawing the coordinate system.
/// </summary>
private void UpdateQuadImage(PointF a, PointF b)
{
PointF c = new PointF(a.X + (b.Y - a.Y), a.Y - (b.X - a.X));
PointF d = new PointF(c.X + (b.X - a.X), c.Y + (b.Y - a.Y));
quadImage = new QuadrilateralF(c, d, b, a);
}
private void WriteCalibrationHelp(XmlTextWriter w)
{
bool line = random.NextBoolean();
Array values = Enum.GetValues(typeof(LengthUnit));
LengthUnit lengthUnit = (LengthUnit)values.GetValue(random.Next(values.Length));
w.WriteStartElement("Calibration");
if (line)
{
PointF origin = random.NextPointF(0, imageSize.Width, 0, imageSize.Height);
float scale = (float)(random.NextDouble() * 50);
w.WriteStartElement("CalibrationLine");
w.WriteElementString("Origin", XmlHelper.WritePointF(origin));
w.WriteElementString("Scale", string.Format(CultureInfo.InvariantCulture, "{0}", scale));
w.WriteEndElement();
}
else
{
SizeF calibrationSize = random.NextSizeF(1, 100, 1, 100);
QuadrilateralF quad = GetRandomQuadrilateral();
PointF origin = new PointF(0, calibrationSize.Height);
w.WriteStartElement("CalibrationPlane");
w.WriteElementString("Size", XmlHelper.WriteSizeF(calibrationSize));
w.WriteStartElement("Quadrilateral");
w.WriteElementString("A", XmlHelper.WritePointF(quad.A));
w.WriteElementString("B", XmlHelper.WritePointF(quad.B));
w.WriteElementString("C", XmlHelper.WritePointF(quad.C));
w.WriteElementString("D", XmlHelper.WritePointF(quad.D));
w.WriteEndElement();
w.WriteElementString("Origin", XmlHelper.WritePointF(origin));
w.WriteEndElement();
}
w.WriteStartElement("Unit");
w.WriteAttributeString("Abbreviation", UnitHelper.LengthAbbreviation(lengthUnit));
w.WriteString(lengthUnit.ToString());
w.WriteEndElement();
w.WriteEndElement();
}
private void WriteDrawingPlane(XmlTextWriter w, Guid id, long time)
{
QuadrilateralF quadImage = GetRandomQuadrilateral();
bool inPerspective = random.NextBoolean();
if (!inPerspective)
{
quadImage.C = new PointF(quadImage.B.X, quadImage.D.Y);
quadImage.MakeRectangle(0);
}
w.WriteElementString("PointUpperLeft", XmlHelper.WritePointF(quadImage.A));
w.WriteElementString("PointUpperRight", XmlHelper.WritePointF(quadImage.B));
w.WriteElementString("PointLowerRight", XmlHelper.WritePointF(quadImage.C));
w.WriteElementString("PointLowerLeft", XmlHelper.WritePointF(quadImage.D));
w.WriteElementString("Perspective", inPerspective.ToString().ToLower());
w.WriteStartElement("DrawingStyle");
WriteDrawingStyleColor(w, "color");
WriteDrawingStyleGridDivisions(w, "divisions");
w.WriteEndElement();
WriteInfosFading(w);
bool tracked = random.NextBoolean();
if (!tracked)
{
return;
}
List <string> pointKeys = new List <string>()
{
"0", "1", "2", "3"
};
trackableDrawings.Add(new TrackableDrawing(id, time, pointKeys));
}
