private static IEnumerable <XElement> CreateHexagrams(double centerX, double centerY, double innerRadius, double outerRadius)
{
foreach (var hexagram in HexagramLL.HexagramsByInnerTrigram)
{
var inner1 = CircleMath.GetPoint(HexagramOffset - hexagram.Lines[0].StartDegree, innerRadius, centerX, centerY);
var inner2 = CircleMath.GetPoint(HexagramOffset - hexagram.Lines[5].EndDegree, innerRadius, centerX, centerY);
var outer1 = CircleMath.GetPoint(HexagramOffset - hexagram.Lines[0].StartDegree, outerRadius, centerX, centerY);
var outer2 = CircleMath.GetPoint(HexagramOffset - hexagram.Lines[5].EndDegree, outerRadius, centerX, centerY);
var points = new[]
{
new SvgPoint(inner1.X, inner1.Y),
new SvgPoint(outer1.X, outer1.Y),
new SvgPoint(outer2.X, outer2.Y),
new SvgPoint(inner2.X, inner2.Y)
};
string color = null;
switch (hexagram.InnerTrigram)
{
case Trigram.Force: // Heaven
color = "#ffb3ff";
break;
case Trigram.Field: // Earth
color = "#80ff80";
break;
case Trigram.Shake: // Thunder
color = "#ffff64";
break;
case Trigram.Gorge: // Water
color = "#4d93ff";
break;
case Trigram.Bound: // Mountain
color = "#cccccc";
break;
case Trigram.Ground: // Wind
color = "#99ffff";
break;
case Trigram.Radiance: // Fire
color = "#ff6666";
break;
case Trigram.Open: // Swamp
color = "#00b3a0";
break;
}
color = Rgb
.Parse(color)
.WithSaturation(7 * (hexagram.CircleIndex() % 8))
.ToString();
// var color = HexagramLL.FillColors[hexagram.Number];
var polygon = SvgBuild
.Polygon(points, $"hexagram_{hexagram.Number}")
//.AddAttribute("class", "hexagram");
.AddAttribute("style", $"fill:{color}");
yield return(polygon);
}
}