void DrawBezier(int splineInd)
{
Vector3[] pnts = curve.GetSplinePoints(splineInd);
Vector3 start = curve.transform.TransformPoint(BezierUtil.GetPoint(pnts, 0f));
//Vector3 start = BezierUtil.GetPoint(pnts, 0f);
curve.curvePoints.Add(curve.transform.InverseTransformPoint(start));
float i = 0;
while (i < 1)
{
Handles.color = Color.red;
i += .1f;
Vector3 end = curve.transform.TransformPoint(BezierUtil.GetPoint(pnts, i));
//Vector3 end = BezierUtil.GetPoint(pnts, i);
curve.curvePoints.Add(curve.transform.InverseTransformPoint(end));
Handles.DrawLine(start, end);
/*
* Handles.color = Color.green;
* Vector3 velocity = (end - start) * 15;
* Handles.DrawLine(end, end + velocity);
*/
start = end;
}
if (curve.Splines - 1 != splineInd)
{
// Avoid overlapping of curves
curve.curvePoints.RemoveAt(curve.curvePoints.Count - 1);
}
}
public static double NextBell(this Random rand, RandomBellArgs args)
{
double retVal = BezierUtil.GetPoint(rand.NextDouble(), args.Bezier).Y;
if (retVal < 0)
{
retVal = 0;
}
else if (retVal > 1)
{
retVal = 1;
}
return(retVal);
}
private void DrawBell3()
{
Point[] points = GetBellPoints(txtBell3.Text);
if (points == null)
{
txtBell3.Effect = _errorEffect;
return;
}
txtBell3.Effect = null;
BezierSegment3D bezier = new BezierSegment3D(0, 1, points.Select(o => o.ToPoint3D()).ToArray(), new[] { new Point3D(0, 0, 0), new Point3D(1, 1, 0) });
Random rand = StaticRandom.GetRandomForThread();
IEnumerable <double> samples = Enumerable.Range(0, 100000).
Select(o => BezierUtil.GetPoint(rand.NextDouble(), bezier).Y);
IEnumerable <Point> idealLine = BezierUtil.GetPoints(100, bezier).
Select(o => o.ToPoint2D());
DrawGraph(samples, idealLine);
Rect bounds = GetBounds();
for (int cntr = 0; cntr < bezier.ControlPoints.Length - 1; cntr++)
{
Point from = GetScaledPoint(bezier.ControlPoints[cntr], bounds);
Point to = GetScaledPoint(bezier.ControlPoints[cntr + 1], bounds);
AddLine(from, to, _brushLightBlue);
}
if (bezier.ControlPoints.Length > 0)
{
Point from = GetScaledPoint(bezier.EndPoint0, bounds);
Point to = GetScaledPoint(bezier.ControlPoints[0], bounds);
AddLine(from, to, _brushLightBlue);
from = GetScaledPoint(bezier.EndPoint1, bounds);
to = GetScaledPoint(bezier.ControlPoints[bezier.ControlPoints.Length - 1], bounds);
AddLine(from, to, _brushLightBlue);
}
}
private void DrawBell2()
{
Point[] points = GetBellPoints(txtBell2.Text);
if (points == null)
{
txtBell2.Effect = _errorEffect;
return;
}
txtBell2.Effect = null;
BezierSegment3D[] bezier = BezierUtil.GetBezierSegments(points.Select(o => o.ToPoint3D()).ToArray(), trkBell2.Value);
for (int cntr = 0; cntr < bezier.Length; cntr++)
{
bezier[cntr] = new BezierSegment3D(bezier[cntr].EndIndex0, bezier[cntr].EndIndex1, new Point3D[0], bezier[cntr].AllEndPoints);
}
Random rand = StaticRandom.GetRandomForThread();
IEnumerable <double> samples = Enumerable.Range(0, 50000).
Select(o => BezierUtil.GetPoint(rand.NextDouble(), bezier).Y);
IEnumerable <Point> idealLine = BezierUtil.GetPath(100, bezier).
Select(o => o.ToPoint2D());
DrawGraph(samples, idealLine);
var samples2 = Enumerable.Range(0, 1000).
Select(o =>
{
double randPercent = rand.NextDouble();
Point3D point = BezierUtil.GetPoint(randPercent, bezier);
return(Tuple.Create(randPercent, point.X, point.Y, point.Z));
}).
OrderBy(o => o.Item1).
ToArray();
if (!samples2.All(o => o.Item4.IsNearZero()))
{
int three = 2;
}
if (!samples2.All(o => o.Item2.IsNearValue(o.Item3)))
{
int four = 7;
}
var samples2a = samples2.
Select(o => Tuple.Create(o.Item1, o.Item2, o.Item1 - o.Item2)).
ToArray();
//IEnumerable<Point> testLine = Enumerable.Range(0, 150).
// Select(o => BezierUtil.GetPoint(o / 150d, bezier).ToPoint2D());
//Rect bounds = GetBounds();
//IEnumerable<Point> testLineFinal = idealLine
// .Select(o => new Point(bounds.Left + (o.X * bounds.Width), bounds.Bottom - (o.Y * bounds.Height)));
//AddLine(testLineFinal, new SolidColorBrush(UtilityWPF.ColorFromHex("FF0000")), 1, "test line");
}
private void DrawBellFail()
{
double midX = trkBellFailPeak.Value;
BezierSegment3D[] bezier = BezierUtil.GetBezierSegments(new[] { new Point3D(0, 0, 0), new Point3D(midX, 1, 0), new Point3D(1, 0, 0) }, trkBellFailPinch.Value);
// Add a control point so the curve will be attracted to the x axis at the two end points
double run;
if (trkBellFailLeftZero.Value > 0)
{
run = (bezier[0].EndPoint1.X - bezier[0].EndPoint0.X) * trkBellFailLeftZero.Value;
bezier[0] = new BezierSegment3D(bezier[0].EndIndex0, bezier[0].EndIndex1, new[] { new Point3D(run, 0, 0), bezier[0].ControlPoints[0] }, bezier[0].AllEndPoints);
}
if (trkBellFailRightZero.Value > 0)
{
run = (bezier[1].EndPoint1.X - bezier[1].EndPoint0.X) * trkBellFailRightZero.Value;
bezier[1] = new BezierSegment3D(bezier[1].EndIndex0, bezier[1].EndIndex1, new[] { bezier[1].ControlPoints[0], new Point3D(bezier[1].EndPoint1.X - run, 0, 0), }, bezier[1].AllEndPoints);
}
Random rand = StaticRandom.GetRandomForThread();
//TODO: There is still a bug with calculating percent, or something
//It might be treating X as a percent. Maybe need to get the length of the lines, and take the percent of those???? - should be the same though
IEnumerable <double> samples = Enumerable.Range(0, 50000).
Select(o =>
{
double percent = rand.NextDouble();
int index;
if (percent < midX)
{
index = 0;
percent = percent / midX;
}
else
{
index = 1;
percent = (percent - midX) / (1d - midX);
}
double retVal = BezierUtil.GetPoint(percent, bezier[index]).Y;
if (retVal < 0)
{
retVal = 0;
}
else if (retVal > 1)
{
retVal = 1;
}
return(retVal);
});
IEnumerable <Point> idealLine = BezierUtil.GetPath(100, bezier).
Select(o => o.ToPoint2D());
DrawGraph(samples, idealLine);
}
private void BellFailDebug_Click(object sender, RoutedEventArgs e)
{
const int COUNT = 25;
// The problem that this method illustrates is that rand.nextdouble() is thought of as x, but it's really % along arc length of the curve
// And because there are two curves, it's some hacked up hybrid
//
// The original intent was to get the y coord at some fixed x. But there's no one single calculation that would get that. Samples would
// need to be taken to figure out which percent along curve to use to get the desired x, and corresponding y
try
{
double midX = trkBellFailPeak.Value;
BezierSegment3D[] bezier = BezierUtil.GetBezierSegments(new[] { new Point3D(0, 0, 0), new Point3D(midX, 1, 0), new Point3D(1, 0, 0) }, trkBellFailPinch.Value);
// Add a control point so the curve will be attracted to the x axis at the two end points
double run;
if (trkBellFailLeftZero.Value > 0)
{
run = (bezier[0].EndPoint1.X - bezier[0].EndPoint0.X) * trkBellFailLeftZero.Value;
bezier[0] = new BezierSegment3D(bezier[0].EndIndex0, bezier[0].EndIndex1, new[] { new Point3D(run, 0, 0), bezier[0].ControlPoints[0] }, bezier[0].AllEndPoints);
}
if (trkBellFailRightZero.Value > 0)
{
run = (bezier[1].EndPoint1.X - bezier[1].EndPoint0.X) * trkBellFailRightZero.Value;
bezier[1] = new BezierSegment3D(bezier[1].EndIndex0, bezier[1].EndIndex1, new[] { bezier[1].ControlPoints[0], new Point3D(bezier[1].EndPoint1.X - run, 0, 0), }, bezier[1].AllEndPoints);
}
//bezier[0] = new BezierSegment3D(bezier[0].EndIndex0, bezier[0].EndIndex1, new Point3D[0], bezier[0].AllEndPoints);
//bezier[1] = new BezierSegment3D(bezier[1].EndIndex0, bezier[1].EndIndex1, new Point3D[0], bezier[1].AllEndPoints);
var samples = Enumerable.Range(0, COUNT).
Select(o =>
{
double percentOrig = o.ToDouble() / COUNT.ToDouble();
int index;
double percent;
if (percentOrig < midX)
{
index = 0;
percent = percentOrig / midX;
}
else
{
index = 1;
percent = (percentOrig - midX) / (1d - midX);
}
Point3D point = BezierUtil.GetPoint(percent, bezier[index]);
//if (retVal < 0) retVal = 0;
//else if (retVal > 1) retVal = 1;
return(new
{
PercentOrig = percentOrig,
PercentSub = percent,
Index = index,
Point = point,
});
}).
ToArray();
Clear();
Rect bounds = GetBounds();
// Grid
AddLine(bounds.BottomLeft, bounds.TopRight, _brushVeryLight); // diagonal
AddLine(bounds.TopLeft, bounds.TopRight, _brushVeryLight); // 1
double y = bounds.Bottom - (bounds.Height * .75);
AddLine(new Point(bounds.Left, y), new Point(bounds.Right, y), _brushVeryLight); // .75
y = bounds.Bottom - (bounds.Height * .5);
AddLine(new Point(bounds.Left, y), new Point(bounds.Right, y), _brushVeryLight); // .5
y = bounds.Bottom - (bounds.Height * .25);
AddLine(new Point(bounds.Left, y), new Point(bounds.Right, y), _brushVeryLight); // .25
AddLine(new[] { bounds.TopLeft, bounds.BottomLeft, bounds.BottomRight }, _brushDark); // axiis
// Samples
foreach (var sample in samples)
{
AddLine(new Point(bounds.Left + (sample.PercentOrig * bounds.Width), bounds.Bottom), new Point(bounds.Left + (sample.Point.X * bounds.Width), bounds.Bottom - (sample.Point.Y * bounds.Height)), Brushes.Black);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}