static Shape <double> CreateDiskShape(ConvolutionFactory factory)
{
var eastDirection = factory.CreateDirection(1.0, 0.0);
var diskArc = factory.CreateArc(
center: factory.CreatePoint(0.0, 0.0),
directions: factory.CreateDirectionRange(eastDirection, eastDirection, Orientation.CounterClockwise),
radius: 1.0,
weight: 1);
return(factory.CreateShape(new[] { diskArc }));
}
public void When_Direction_Ranges_Are_Included_Then_Intersection_Should_Be_The_Innermost_Range()
{
const double radius1 = 2.0;
const double radius2 = 2.0;
var convolutionFactory = new ConvolutionFactory();
var arc1 = convolutionFactory.CreateArc(
centerX: 1.0,
centerY: 2.0,
directionStartX: 1.0,
directionStartY: 0.0,
directionEndX: 0.0,
directionEndY: 1.0,
orientation: Orientation.CounterClockwise,
radius: radius1,
weight: 1);
var arc2 = convolutionFactory.CreateArc(
centerX: 2.0,
centerY: 1.0,
directionStartX: 1.0,
directionStartY: 0.5,
directionEndX: 0.5,
directionEndY: 1.0,
orientation: Orientation.CounterClockwise,
radius: radius2,
weight: 1);
var convolution = convolutionFactory.ConvolveTracings(arc1, arc2).ToList();
convolution.Should().HaveCount(1);
convolution[0].Convolution.Should().BeOfType(typeof(Arc <double>));
var convolutionAsArc = (Arc <double>)convolution[0].Convolution;
convolutionAsArc.Center.Should().BeEquivalentTo(convolutionFactory.CreatePoint(3.0, 3.0));
}
public void When_Two_Shapes_Are_Convolved_Then_Parent1_Should_Belong_To_Shape1_And_Parent2_Should_Belong_To_Shape2()
{
// Arrange
var shape1 = createShape1();
var shape2 = createShape2();
// Act
var convolution = _factory.ConvolveShapes(shape1, shape2);
// Assert
convolution.ConvolvedTracings.ToList()
.ForEach(convolvedTracing =>
shape1.Tracings.Contains(convolvedTracing.Parent1).Should().BeTrue());
convolution.ConvolvedTracings.ToList()
.ForEach(convolvedTracing =>
shape2.Tracings.Contains(convolvedTracing.Parent2).Should().BeTrue());
Shape <double> createShape1()
{
var weight = new Fraction(1, 2);
var d1 = _factory.CreateDirection(-1, 2);
var d2 = _factory.CreateDirection(-1, -2);
var d3 = _factory.CreateDirection(2, 0);
var c1 = _factory.CreatePoint(1, 0);
var c2 = _factory.CreatePoint(0, 2);
var c3 = _factory.CreatePoint(-1, 0);
var range1 = _factory.CreateDirectionRange(
d3.NormalDirection().Opposite(),
d1.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var range2 = _factory.CreateDirectionRange(
d1.NormalDirection().Opposite(),
d2.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var range3 = _factory.CreateDirectionRange(
d2.NormalDirection().Opposite(),
d3.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var arc1 = _factory.CreateArc(c1, range1, 1.0, weight);
var arc2 = _factory.CreateArc(c2, range2, 1.0, weight);
var arc3 = _factory.CreateArc(c3, range3, 1.0, weight);
var segment1 = _factory.CreateSegment(arc1.End, arc2.Start, weight);
var segment2 = _factory.CreateSegment(arc2.End, arc3.Start, weight);
var segment3 = _factory.CreateSegment(arc3.End, arc1.Start, weight);
return(_factory.CreateShape(
new Tracing <double>[]
{
arc1, segment1, arc2, segment2, arc3, segment3
}));
}
Shape <double> createShape2()
{
var weight = new Fraction(1, 2);
var d1 = _factory.CreateDirection(0, 3);
var d2 = _factory.CreateDirection(-3, 0);
var d3 = _factory.CreateDirection(0, -3);
var d4 = _factory.CreateDirection(3, 0);
var c1 = _factory.CreatePoint(3, 0);
var c2 = _factory.CreatePoint(3, 3);
var c3 = _factory.CreatePoint(0, 3);
var c4 = _factory.CreatePoint(0, 0);
var range1 = _factory.CreateDirectionRange(
d4.NormalDirection().Opposite(),
d1.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var range2 = _factory.CreateDirectionRange(
d1.NormalDirection().Opposite(),
d2.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var range3 = _factory.CreateDirectionRange(
d2.NormalDirection().Opposite(),
d3.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var range4 = _factory.CreateDirectionRange(
d3.NormalDirection().Opposite(),
d4.NormalDirection().Opposite(),
Orientation.CounterClockwise);
var arc1 = _factory.CreateArc(c1, range1, 1.0, weight);
var arc2 = _factory.CreateArc(c2, range2, 1.0, weight);
var arc3 = _factory.CreateArc(c3, range3, 1.0, weight);
var arc4 = _factory.CreateArc(c4, range4, 1.0, weight);
var segment1 = _factory.CreateSegment(arc1.End, arc2.Start, weight);
var segment2 = _factory.CreateSegment(arc2.End, arc3.Start, weight);
var segment3 = _factory.CreateSegment(arc3.End, arc4.Start, weight);
var segment4 = _factory.CreateSegment(arc4.End, arc1.Start, weight);
return(_factory.CreateShape(
new Tracing <double>[]
{
arc1, segment1, arc2, segment2, arc3, segment3, arc4, segment4
}));
}
}
