private void CreateGate()
{
// not gate
var trianglePath = new Path2F
{
new PathKey2F
{
Parameter = 0,
Interpolation = SplineInterpolation.Linear,
Point = new Vector2F(1, 0),
},
new PathKey2F
{
Parameter = 1,
Interpolation = SplineInterpolation.Linear,
Point = new Vector2F(-0.25f, 0.5f),
},
new PathKey2F
{
Parameter = 2,
Interpolation = SplineInterpolation.Linear,
Point = new Vector2F(-0.25f, -0.5f),
},
new PathKey2F
{
Parameter = 3,
Interpolation = SplineInterpolation.Linear,
Point = new Vector2F(1, 0),
}
};
var triangle = new PathFigure2F();
triangle.Segments.Add(trianglePath);
var outPinFigure = new PathFigure2F
{
Segments = {
new LineSegment2F() { Point1 = new Vector2F(1, 0), Point2 = new Vector2F(1.2f, 0) }
}
};
// Add figure to the scene.
var notGateNode = new FigureNode(triangle)
{
Name = "Not Gate",
StrokeThickness = 2,
StrokeColor = new Vector3F(1, 0.2f, 0.2f),
FillColor = new Vector3F(1, 0.5f, 0.5f),
FillAlpha = 0.5f,
PoseLocal = new Pose(new Vector3F(0, 0, 0)),
ScaleLocal = new Vector3F(1),
Children = new SceneNodeCollection(3),
};
var pinFigure = new PathFigure2F
{
Segments =
{
new LineSegment2F { Point1 = new Vector2F(0, 0), Point2 = new Vector2F(0.2f, 0) }
}
};
var pinsFigure = new CompositeFigure();
var output = new TransformedFigure(pinFigure)
{
Pose = new Pose(new Vector3F(1.0f, 0, 0))
};
pinsFigure.Children.Add(output);
var ina = new TransformedFigure(pinFigure)
{
Pose = new Pose(new Vector3F(-0.25f - 0.2f, -0.25f, 0))
};
pinsFigure.Children.Add(ina);
var inb = new TransformedFigure(pinFigure)
{
Pose = new Pose(new Vector3F(-0.25f - 0.2f, 0.25f, 0))
};
pinsFigure.Children.Add(inb);
notGateNode.Children.Add(new FigureNode(pinsFigure)
{
Name = "Pins",
StrokeThickness = 2,
StrokeColor = new Vector3F(0, 0, 0),
PoseLocal = new Pose(new Vector3F(0, 0, 0)),
ScaleLocal = new Vector3F(1f),
});
Scene.Children.Add(notGateNode);
}
// Add a 3D coordinate cross.
private void CreateGizmo(SpriteFont spriteFont)
{
var gizmoNode = new SceneNode
{
Name = "Gizmo",
Children = new SceneNodeCollection(),
PoseLocal = new Pose(new Vector3F(3, 2, 0)),
ScaleLocal = new Vector3F(0.5f)
};
// Red arrow
var arrow = new PathFigure2F();
arrow.Segments.Add(new LineSegment2F { Point1 = new Vector2F(0, 0), Point2 = new Vector2F(1, 0) });
arrow.Segments.Add(new LineSegment2F { Point1 = new Vector2F(1, 0), Point2 = new Vector2F(0.9f, 0.02f) });
arrow.Segments.Add(new LineSegment2F { Point1 = new Vector2F(1, 0), Point2 = new Vector2F(0.9f, -0.02f) });
var figureNode = new FigureNode(arrow)
{
Name = "Gizmo X",
StrokeThickness = 2,
StrokeColor = new Vector3F(1, 0, 0),
PoseLocal = new Pose(new Vector3F(0, 0, 0))
};
gizmoNode.Children.Add(figureNode);
// Green arrow
var transformedArrow = new TransformedFigure(arrow)
{
Pose = new Pose(Matrix33F.CreateRotationZ(MathHelper.ToRadians(90)))
};
figureNode = new FigureNode(transformedArrow)
{
Name = "Gizmo Y",
StrokeThickness = 2,
StrokeColor = new Vector3F(0, 1, 0),
PoseLocal = new Pose(new Vector3F(0, 0, 0))
};
gizmoNode.Children.Add(figureNode);
// Blue arrow
transformedArrow = new TransformedFigure(arrow)
{
Pose = new Pose(Matrix33F.CreateRotationY(MathHelper.ToRadians(-90)))
};
figureNode = new FigureNode(transformedArrow)
{
Name = "Gizmo Z",
StrokeThickness = 2,
StrokeColor = new Vector3F(0, 0, 1),
PoseLocal = new Pose(new Vector3F(0, 0, 0))
};
gizmoNode.Children.Add(figureNode);
// Red arc
var arc = new PathFigure2F();
arc.Segments.Add(
new StrokedSegment2F(
new LineSegment2F { Point1 = new Vector2F(0, 0), Point2 = new Vector2F(1, 0), },
false));
arc.Segments.Add(
new ArcSegment2F
{
Point1 = new Vector2F(1, 0),
Point2 = new Vector2F(0, 1),
Radius = new Vector2F(1, 1)
});
arc.Segments.Add(
new StrokedSegment2F(
new LineSegment2F { Point1 = new Vector2F(0, 1), Point2 = new Vector2F(0, 0), },
false));
var transformedArc = new TransformedFigure(arc)
{
Scale = new Vector3F(0.333f),
Pose = new Pose(Matrix33F.CreateRotationY(MathHelper.ToRadians(-90)))
};
figureNode = new FigureNode(transformedArc)
{
Name = "Gizmo YZ",
StrokeThickness = 2,
StrokeColor = new Vector3F(1, 0, 0),
FillColor = new Vector3F(1, 0, 0),
FillAlpha = 0.5f,
PoseLocal = new Pose(new Vector3F(0, 0, 0))
};
gizmoNode.Children.Add(figureNode);
// Green arc
transformedArc = new TransformedFigure(arc)
{
Scale = new Vector3F(0.333f),
Pose = new Pose(Matrix33F.CreateRotationX(MathHelper.ToRadians(90)))
};
figureNode = new FigureNode(transformedArc)
{
Name = "Gizmo XZ",
StrokeThickness = 2,
StrokeColor = new Vector3F(0, 1, 0),
FillColor = new Vector3F(0, 1, 0),
FillAlpha = 0.5f,
PoseLocal = new Pose(new Vector3F(0, 0, 0))
};
gizmoNode.Children.Add(figureNode);
// Blue arc
transformedArc = new TransformedFigure(arc)
{
Scale = new Vector3F(0.333f),
};
figureNode = new FigureNode(transformedArc)
{
Name = "Gizmo XY",
StrokeThickness = 2,
StrokeColor = new Vector3F(0, 0, 1),
FillColor = new Vector3F(0, 0, 1),
FillAlpha = 0.5f,
PoseLocal = new Pose(new Vector3F(0, 0, 0))
};
gizmoNode.Children.Add(figureNode);
// Labels "X", "Y", "Z"
var spriteNode = new SpriteNode(new TextSprite("X", spriteFont))
{
Color = new Vector3F(1, 0, 0),
Origin = new Vector2F(0, 1),
PoseLocal = new Pose(new Vector3F(1, 0, 0))
};
gizmoNode.Children.Add(spriteNode);
spriteNode = new SpriteNode(new TextSprite("Y", spriteFont))
{
Color = new Vector3F(0, 1, 0),
Origin = new Vector2F(0, 1),
PoseLocal = new Pose(new Vector3F(0, 1, 0))
};
gizmoNode.Children.Add(spriteNode);
spriteNode = new SpriteNode(new TextSprite("Z", spriteFont))
{
Color = new Vector3F(0, 0, 1),
Origin = new Vector2F(0, 1),
PoseLocal = new Pose(new Vector3F(0, 0, 1))
};
gizmoNode.Children.Add(spriteNode);
_scene.Children.Add(gizmoNode);
}
// Add a flower shape.
private void CreateFlower()
{
// Define single flower petal.
var petalPath = new Path2F
{
new PathKey2F
{
Parameter = 0,
Interpolation = SplineInterpolation.Bezier,
Point = new Vector2F(0, 0),
TangentIn = new Vector2F(0, 0),
TangentOut = new Vector2F(-0.2f, 0.2f)
},
new PathKey2F
{
Parameter = 1,
Interpolation = SplineInterpolation.Bezier,
Point = new Vector2F(0, 1),
TangentIn = new Vector2F(-0.3f, 1.1f),
TangentOut = new Vector2F(0.3f, 1.1f)
},
new PathKey2F
{
Parameter = 2,
Interpolation = SplineInterpolation.Bezier,
Point = new Vector2F(0, 0),
TangentIn = new Vector2F(0.2f, 0.2f),
TangentOut = new Vector2F(0, 0)
}
};
var petal = new PathFigure2F();
petal.Segments.Add(petalPath);
// Duplicate and rotate flower petal several times.
const int numberOfPetals = 9;
var flower = new CompositeFigure();
flower.Children.Add(petal);
for (int i = 1; i < numberOfPetals; i++)
{
var transformedPetal = new TransformedFigure(petal)
{
Pose = new Pose(Matrix33F.CreateRotationZ(i * ConstantsF.TwoPi / numberOfPetals))
};
flower.Children.Add(transformedPetal);
}
var flowerNode = new FigureNode(flower)
{
Name = "Flower",
StrokeThickness = 2,
StrokeColor = new Vector3F(1, 0.2f, 0.2f),
FillColor = new Vector3F(1, 0.5f, 0.5f),
FillAlpha = 1,
PoseLocal = new Pose(new Vector3F(3, 1, 0)),
ScaleLocal = new Vector3F(0.5f)
};
_scene.Children.Add(flowerNode);
}
// Add a chain-like figure using TransformedFigure and CompositeFigure.
private void CreateChain()
{
var ellipse = new EllipseFigure
{
IsFilled = false,
RadiusX = 1f,
RadiusY = 1f,
};
var compositeFigure = new CompositeFigure();
for (int i = 0; i < 9; i++)
{
var transformedEllipse = new TransformedFigure(ellipse)
{
Scale = new Vector3F(0.4f, 0.2f, 1),
Pose = new Pose(new Vector3F(-2 + i * 0.5f, 0, 0), Matrix33F.CreateRotationX(ConstantsF.PiOver2 * (i % 2)))
};
compositeFigure.Children.Add(transformedEllipse);
}
_scene.Children.Add(new FigureNode(compositeFigure)
{
Name = "Chain",
StrokeThickness = 2,
StrokeColor = new Vector3F(0.1f),
StrokeAlpha = 1,
PoseLocal = new Pose(new Vector3F(0, 3, 0)),
});
}