public bool IsOnLine(Point point)
{
var calculator = new IsPointOnArcSegmentCalculator
{
ArcSegment = this,
Point = point
};
calculator.Calculate();
return(calculator.IsPointOnArcSegment);
}
public void Calculate_DoesNothing_ForPointIsUnknown()
{
// Arrange
var sut = new IsPointOnArcSegmentCalculator
{
ArcSegment = m_ArcSegment,
Point = Point.Unknown
};
// Act
sut.Calculate();
// Assert
Assert.False(sut.IsPointOnArcSegment);
}
public void IsPointOnArcSegment_ReturnsTrue_ForStartPoint()
{
// Arrange
var sut = new IsPointOnArcSegmentCalculator
{
ArcSegment = m_ArcSegment,
Point = m_StartPoint
};
// Act
sut.Calculate();
// Assert
Assert.True(sut.IsPointOnArcSegment);
}
public void IsPointOnArcSegment_ReturnsTrue_ForHalfwayPoint()
{
// Arrange
var halfway = new Point(6.0,
3.0);
var sut = new IsPointOnArcSegmentCalculator
{
ArcSegment = m_ArcSegment,
Point = halfway
};
// Act
sut.Calculate();
// Assert
Assert.True(sut.IsPointOnArcSegment);
}
public void IsPointOnArcSegment_ReturnsFalse_ForHalfwayPointPlusDeltaTwoTimes()
{
// Arrange
const double doubleDelta = SelkieConstants.EpsilonDistance * 2;
var halfway = new Point(6.0 + doubleDelta,
3.0);
var sut = new IsPointOnArcSegmentCalculator
{
ArcSegment = m_ArcSegment,
Point = halfway
};
// Act
sut.Calculate();
// Assert
Assert.False(sut.IsPointOnArcSegment);
}
public void IsPointOnArcSegment_ReturnsFalse_ForPointBeforeStartPoint()
{
// Arrange
Point point = PointOnCircle(m_ArcSegment,
359.5);
var sut = new IsPointOnArcSegmentCalculator
{
ArcSegment = m_ArcSegment,
Point = point
};
// Act
sut.Calculate();
// Assert
Assert.False(sut.IsPointOnArcSegment);
}