public void GetPerpendicularIntersect()
{
//assign
Geometry.MarginOfError = 0.001;
WLine a = new WLine(new WPoint(0, 15.0 / 6.0), new WPoint(15.0 / 8.0, 0));
WPoint c = new WPoint(3, -4);
//act
WPoint result = a.GetPerpendicularIntersect(c);
//assert
Assert.IsTrue(Geometry.WithinMarginOfError(21.0 / 5.0, result.X));
Assert.IsTrue(Geometry.WithinMarginOfError(-31.0 / 10.0, result.Y));
}
public void Overlaps_WPoint_PointIsOutsideLineSegment()
{
//arrange
Geometry.MarginOfError = 0.001;
Geometry.CoordinatePlane = Geometry.CoordinatePlanes.Screen;
WLine line = new WLine(new WPoint(1, 0), new WPoint(5, 0));
WPoint point = new WPoint(0, 0);
//act
bool result = line.Overlaps(point);
//assert
Assert.IsTrue(result);
}
public void IsHorizontal_MarginOfError_No()
{
//arrange (from real example)
Geometry.MarginOfError = 0.001;
Geometry.CoordinatePlane = Geometry.CoordinatePlanes.Screen;
WPoint a = new WPoint(1, 160.06);
WPoint b = new WPoint(10, 159.94);
WLine line = new WLine(a, b);
//act
bool result = line.IsHorizontal;
//assert
Assert.IsFalse(result);
}
public void IsVertical_MarginOfError_Yes()
{
//arrange (from real example)
Geometry.MarginOfError = 0.001;
Geometry.CoordinatePlane = Geometry.CoordinatePlanes.Screen;
WPoint a = new WPoint(160.00000000000006, 1);
WPoint b = new WPoint(159.99999999999994, 10);
WLine line = new WLine(a, b);
//act
bool result = line.IsVertical;
//assert
Assert.IsTrue(result);
}
public void Corners_Screen_Flat()
{
//assign
Geometry.MarginOfError = 0.001;
Geometry.CoordinatePlane = Geometry.CoordinatePlanes.Screen;
WPoint topLeftCorner = new WPoint(10, 5);
double width = 12;
double height = 4;
double rotation = 0;
WRectangle rectangle = new WRectangle(width, height, topLeftCorner, rotation);
//act
WPoint[] result = rectangle.Corners;
//assert
Assert.AreEqual(4, result.Length);
Assert.AreEqual(topLeftCorner, result[0]);
Assert.AreEqual(new WPoint(topLeftCorner.X + width, topLeftCorner.Y), result[1]);
Assert.AreEqual(new WPoint(topLeftCorner.X + width, topLeftCorner.Y + height), result[2]);
Assert.AreEqual(new WPoint(topLeftCorner.X, topLeftCorner.Y + height), result[3]);
}
