public StringLine ConstructString(SIString str, Measure nutPos, Measure bridgePos)
{
var opp = Measure.Abs(nutPos - bridgePos);
Measure adj = str.ScaleLength;
if (str.LengthCalculationMethod == LengthFunction.AlongString && opp > Measure.Zero)
{
var theta = MathP.Asin(opp.NormalizedValue / str.ScaleLength.NormalizedValue);
adj = MathP.Cos(theta) * str.ScaleLength;
}
var p1 = new PointM(nutPos, (adj / 2d));
var p2 = new PointM(bridgePos, (adj / 2d) * -1d);
return(AddVisualElement(new StringLine(str, p1, p2)));
}
private FretPosition CalculateFretPosition(SIString str, int fret)
{
var stringTuning = str.Tuning ?? GetDefaultTuning();
var fretPosRatio = GetRelativeFretPosition(stringTuning, fret - str.StartingFret, FretsTemperament);
var dir = str.PlaceFretsRelativeToString ? str.LayoutLine.Direction * -1 : new Vector(0, 1);
var fretPos = str.LayoutLine.P2 + (dir * str.CalculatedLength * fretPosRatio);
if (!str.PlaceFretsRelativeToString)
{
fretPos = str.LayoutLine.SnapToLine(fretPos, LineSnapDirection.Horizontal);
}
return(new FretPosition()
{
FretIndex = fret, Position = fretPos, StringIndex = str.Index, PositionRatio = fretPosRatio
});
}
internal LayoutLine GetStringBoundaryLine(SIString str, FingerboardSide dir)
{
LayoutLine boundary = null;
if (dir == FingerboardSide.Bass)
{
boundary = VisualElements.OfType <StringCenter>().FirstOrDefault(c => c.Right.Index == str.Index);
}
else
{
boundary = VisualElements.OfType <StringCenter>().FirstOrDefault(c => c.Left.Index == str.Index);
}
if (boundary == null)
{
return(VisualElements.OfType <FingerboardSideEdge>().First(e => e.Side == dir));
}
return(boundary);
}
public static void EstimateStringAction(SIString @string)
{
if (@string.Gauge.IsEmpty)
{
return;
}
//var fret1Pos = @string.ScaleLength - (@string.ScaleLength / Math.Pow(2, 1d / 12d));
//var fret2Pos = @string.ScaleLength - (@string.ScaleLength / Math.Pow(2, 2d / 12d));
//var dist = fret2Pos.NormalizedValue - fret1Pos.NormalizedValue;
//var targetClearance = Measure.Mm(0.1) + (@string.Gauge / 2d);
//var slope = targetClearance / dist;
//var offset = slope * fret2Pos.NormalizedValue;
//offset.Unit = UnitOfMeasure.Mm;
//offset -= (@string.Gauge / 2d);
//@string.ActionAtFirstFret = offset;
var fretRatio = @string.Gauge[UnitOfMeasure.In].DoubleValue * 10;
@string.ActionAtFirstFret = Measure.Mm(0.3 + fretRatio);
@string.ActionAtTwelfthFret = Measure.Mm(2.5);
}
internal FretManager(SIString str) : base(str.Layout)
{
String = str;
_Frets = new FretPositionCollection(this);
}
internal StringCenter GetStringsCenter(SIString left, SIString right)
{
return(VisualElements.OfType <StringCenter>().FirstOrDefault(c =>
(left.Index == c.Right.Index || left.Index == c.Left.Index) &&
(right.Index == c.Right.Index || right.Index == c.Left.Index)));
}
