public void RedrawCurve()
{
this.Children.Clear();
this.Children.Add(this.AxisControlPoint);
this.Children.Add(this.Axis);
foreach (var cp in this.ControlPoints)
{
this.Children.Add(cp);
}
if (this.ControlPoints.Count == 1)
{
return;
}
var curvePoints = NurbsLogic.GetCurvePoints(this.Degree, this.ControlPointsNurbsList, this.KnotVector);
if (curvePoints == null)
{
return;
}
for (var i = 0; i < curvePoints.Count - 1; i++)
{
var firstPoint = curvePoints[i];
var secondPoint = curvePoints[i + 1];
var line = new Line {
Stroke = Brushes.Aqua, IsHitTestVisible = false, X1 = firstPoint.X, Y1 = firstPoint.Y, X2 = secondPoint.X, Y2 = secondPoint.Y
};
this.Children.Add(line);
}
}
private void Render()
{
this.HelixView.Children.Clear();
var controlNet = new List <List <NurbsPoint> >();
var circleKnotVector = new decimal[1];
foreach (var cp in this.ControlPoints)
{
controlNet.Add(SpaceLogic.Arc(cp, this.Angle, out circleKnotVector));
}
if (this.MenuItemAxis.IsChecked)
{
var axis = new LinesVisual3D
{
Color = Colors.Red,
Points = new Point3DCollection(new List <Point3D>
{
new Point3D(0, -1000d, 0),
new Point3D(0, 1000d, 0)
}),
Thickness = 1
};
this.HelixView.Children.Add(axis);
}
if (this.MenuItemNet.IsChecked)
{
this.DrawControlNet(controlNet);
}
if (this.MenuItemCurve.IsChecked)
{
var points =
new Point3DCollection(NurbsLogic.GetCurvePoints(this.Degree, this.ControlPoints, CurveKnotVector));
var curve = new LinesVisual3D {
Color = Colors.BlueViolet, Points = points, Thickness = 1
};
this.HelixView.Children.Add(curve);
}
if (this.MenuItemPar.IsChecked)
{
this.DrawParallels(controlNet, circleKnotVector);
}
if (this.MenuItemMer.IsChecked)
{
this.DrawMeridians(controlNet, circleKnotVector);
}
}