static Shape <double> CreatePathShape(ConvolutionFactory factory)
{
var pathSegment = factory.CreateSegment(
startX: 0.0, startY: 0.0,
endX: 1.0, endY: 2.0,
weight: 1);
var pathReverseSegment = factory.CreateSegment(
startX: 1.0, startY: 2.0,
endX: 0.0, endY: 0.0,
weight: 1);
var smoothingArc1 = factory.CreateArc(
pathSegment.Start,
factory.CreateDirectionRange(
pathReverseSegment.Direction.NormalDirection().Opposite(),
pathSegment.Direction.NormalDirection().Opposite(),
Orientation.CounterClockwise),
0.0,
1);
var smoothingArc2 = factory.CreateArc(
pathReverseSegment.Start,
factory.CreateDirectionRange(
pathSegment.Direction.NormalDirection().Opposite(),
pathReverseSegment.Direction.NormalDirection().Opposite(),
Orientation.CounterClockwise),
0.0,
1);
return(factory.CreateShape(
new Tracing <double>[]
{ smoothingArc1, pathSegment, smoothingArc2, pathReverseSegment }));
}
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));
}
When_calling_ConvolveArcAndSegment_With_two_shapes_without_tangents_Then_the_result_Should_be_empty()
{
// Arrange arc1
var arc = _factory.CreateArc(
radius: 2.0,
weight: 3,
centerX: 1.0,
centerY: 3.0,
directionStartX: 2.0,
directionStartY: 0.0,
directionEndX: 0.0,
directionEndY: 5.0,
orientation: Orientation.CounterClockwise);
// Arrange segment
var segment = _factory.CreateSegment(
startX: 10,
startY: 5,
endX: 15,
endY: 10,
weight: 4);
// Act
var actual = _factory.ConvolveArcAndSegment(arc, segment);
// Assert
actual.Should().BeEmpty();
}