private void CalcDescendants(DescPersonSegment segment, float inRad, float startAngle, float stepAngle)
{
IGfxPath path = segment.Path;
float extRad;
if (segment.Gen == 0)
{
segment.StartAngle = startAngle;
segment.WedgeAngle = 360.0f;
segment.IntRad = 0;
segment.ExtRad = inRad;
path.StartFigure();
path.AddEllipse(-inRad, -inRad, inRad * 2.0f, inRad * 2.0f);
path.CloseFigure();
extRad = inRad;
}
else
{
extRad = inRad + fGenWidth;
int size = Math.Max(1, segment.TotalSubSegments);
float wedgeAngle = stepAngle * size;
// in Eto.Drawings 360 degrees for the segments
// leads to a crash of drawing
if (wedgeAngle == 360.0f)
{
wedgeAngle -= 0.1f;
}
segment.StartAngle = startAngle;
segment.WedgeAngle = wedgeAngle;
segment.Rad = inRad + 50;
segment.IntRad = inRad;
segment.ExtRad = extRad;
fRenderer.CreateCircleSegment(path, inRad, extRad, wedgeAngle, startAngle, startAngle + wedgeAngle);
}
for (int i = 0; i < segment.ChildSegments.Count; i++)
{
DescPersonSegment childSegment = segment.ChildSegments[i];
CalcDescendants(childSegment, extRad, startAngle, stepAngle);
int steps = Math.Max(1, childSegment.TotalSubSegments);
startAngle += stepAngle * steps;
}
}
public void BuildAncTree()
{
fSegments.Clear();
const float startRad = CircleChartModel.CENTER_RAD - 50;
float inRad = startRad;
AncPersonSegment segment = new AncPersonSegment(0);
segment.IntRad = 0;
segment.ExtRad = inRad;
segment.StartAngle = 0 - 90.0f;
segment.WedgeAngle = segment.StartAngle + 360.0f;
IGfxPath path = segment.Path;
path.StartFigure();
path.AddEllipse(-inRad, -inRad, inRad * 2.0f, inRad * 2.0f);
path.CloseFigure();
fSegments.Add(segment);
int maxSteps = 1;
for (int gen = 1; gen <= fMaxGenerations; gen++)
{
inRad = startRad + ((gen - 1) * fGenWidth);
float extRad = inRad + fGenWidth;
maxSteps *= 2;
float stepAngle = (360.0f / maxSteps);
for (int step = 0; step < maxSteps; step++)
{
float ang1 = (step * stepAngle) - 90.0f;
float ang2 = ang1 + stepAngle;
segment = new AncPersonSegment(gen);
segment.StartAngle = ang1;
segment.WedgeAngle = stepAngle;
fRenderer.CreateCircleSegment(segment.Path, inRad, extRad, stepAngle, ang1, ang2);
fSegments.Add(segment);
}
}
// traverse tree
fGroupCount = -1;
fIndividualsCount = 0;
if (fRootPerson == null)
{
return;
}
fIndividualsCount++;
AncPersonSegment rootSegment = SetSegmentParams(0, fRootPerson, 0, -1);
if (rootSegment == null)
{
return;
}
rootSegment.WedgeAngle = 360.0f;
GEDCOMIndividualRecord father = null, mother = null;
GEDCOMFamilyRecord fam = fRootPerson.GetParentsFamily();
if (fam != null && fBase.Context.IsRecordAccess(fam.Restriction))
{
father = fam.GetHusband();
mother = fam.GetWife();
}
if (mother != null)
{
rootSegment.MotherSegment = TraverseAncestors(mother, 90f, 1, CircleChartModel.CENTER_RAD, 90.0f, 1, -1);
}
if (father != null)
{
rootSegment.FatherSegment = TraverseAncestors(father, 270.0f, 1, CircleChartModel.CENTER_RAD, 90.0f, 1, -1);
}
}