public void Intersections_0()
{
IPath shape = new RectangularePolygon(1, 1, 10, 10);
IEnumerable <PointF> intersections = shape.FindIntersections(new PointF(0, 5), new PointF(-5, 5));
Assert.Equal(0, intersections.Count());
}
public void SizeF()
{
RectangularePolygon shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(12, shape.Size.Width);
Assert.Equal(13, shape.Size.Height);
}
public void TransformIdnetityReturnsSahpeObject()
{
IPath shape = new RectangularePolygon(0, 0, 200, 60);
IPath transformdShape = shape.Transform(Matrix3x2.Identity);
Assert.Same(shape, transformdShape);
}
public void DistanceFromPath_Path(TestPoint point, float expectecDistance, float alongPath)
{
IPath shape = new RectangularePolygon(0, 0, 10, 10).AsPath();
PointInfo info = shape.Distance(point);
Assert.Equal(expectecDistance, info.DistanceFromPath);
Assert.Equal(alongPath, info.DistanceAlongPath);
}
private static void OutputClippedRectangle()
{
var rect1 = new RectangularePolygon(10, 10, 40, 40);
var rect2 = new RectangularePolygon(20, 0, 20, 20);
var paths = rect1.Clip(rect2);
paths.SaveImage("Clipping", "RectangleWithTopClipped.png");
}
public void ClippingEdgefromInside()
{
IPath simplePath = new RectangularePolygon(10, 10, 100, 100).Clip(new RectangularePolygon(20, 0, 20, 20));
IEnumerable <PointF> intersections = simplePath.FindIntersections(new PointF(float.MinValue, 20), new PointF(float.MaxValue, 20));
// returns an even number of points
Assert.Equal(4, intersections.Count());
}
public void Bounds_Path()
{
IPath shape = new RectangularePolygon(10, 11, 12, 13).AsPath();
Assert.Equal(10, shape.Bounds.Left);
Assert.Equal(22, shape.Bounds.Right);
Assert.Equal(11, shape.Bounds.Top);
Assert.Equal(24, shape.Bounds.Bottom);
}
[InlineData(620, 150, 50, Pi)] // wrap about end of path
public void PointOnPath(float distance, float expectedX, float expectedY, float expectedAngle)
{
IPath shape = new RectangularePolygon(50, 50, 200, 60);
var point = shape.PointAlongPath(distance);
Assert.Equal(expectedX, point.Point.X);
Assert.Equal(expectedY, point.Point.Y);
Assert.Equal(expectedAngle, point.Angle);
}
public void ClippingRectanglesCreateCorrectNumberOfPoints()
{
IEnumerable <ISimplePath> paths = new RectangularePolygon(10, 10, 40, 40).Clip(new RectangularePolygon(20, 0, 20, 20)).Flatten();
Assert.Equal(1, paths.Count());
var points = paths.First().Points;
Assert.Equal(8, points.Count);
}
public void Transform()
{
IPath shape = new RectangularePolygon(0, 0, 200, 60);
IPath newShape = shape.Transform(new Matrix3x2(0, 1, 1, 0, 20, 2));
Assert.Equal(new PointF(20, 2), newShape.Bounds.Location);
Assert.Equal(new SizeF(60, 200), newShape.Bounds.Size);
}
public void LienearSegements()
{
IPath shape = new RectangularePolygon(10, 11, 12, 13).AsPath();
var segemnts = shape.Flatten().ToArray()[0].Points;
Assert.Equal(new PointF(10, 11), segemnts[0]);
Assert.Equal(new PointF(22, 11), segemnts[1]);
Assert.Equal(new PointF(22, 24), segemnts[2]);
Assert.Equal(new PointF(10, 24), segemnts[3]);
}
public static IPathCollection BuildCorners(int imageWidth, int imageHeight, float cornerRadius)
{
var rect = new RectangularePolygon(-0.5f, -0.5f, cornerRadius, cornerRadius);
IPath cornerToptLeft = rect.Clip(new EllipsePolygon(cornerRadius - 0.5f, cornerRadius - 0.5f, cornerRadius));
var center = new Vector2(imageWidth / 2F, imageHeight / 2F);
float rightPos = imageWidth - cornerToptLeft.Bounds.Width + 1;
float bottomPos = imageHeight - cornerToptLeft.Bounds.Height + 1;
IPath cornerTopRight = cornerToptLeft.RotateDegree(90).Translate(rightPos, 0);
IPath cornerBottomLeft = cornerToptLeft.RotateDegree(-90).Translate(0, bottomPos);
IPath cornerBottomRight = cornerToptLeft.RotateDegree(180).Translate(rightPos, bottomPos);
return(new PathCollection(cornerToptLeft, cornerBottomLeft, cornerTopRight, cornerBottomRight));
}
public static IPathCollection BuildCorners(int imageWidth, int imageHeight, float cornerRadius)
{
// first create a square
var rect = new RectangularePolygon(-0.5f, -0.5f, cornerRadius, cornerRadius);
// then cut out of the square a circle so we are left with a corner
var cornerToptLeft = rect.Clip(new EllipsePolygon(cornerRadius - 0.5f, cornerRadius - 0.5f, cornerRadius));
// corner is now a corner shape positions top left
//lets make 3 more positioned correctly, we can do that by translating the orgional around the center of the image
var center = new Vector2(imageWidth / 2, imageHeight / 2);
float rightPos = imageWidth - cornerToptLeft.Bounds.Width + 1;
float bottomPos = imageHeight - cornerToptLeft.Bounds.Height + 1;
// move it across the width of the image - the width of the shape
var cornerTopRight = cornerToptLeft.RotateDegree(90).Translate(rightPos, 0);
var cornerBottomLeft = cornerToptLeft.RotateDegree(-90).Translate(0, bottomPos);
var cornerBottomRight = cornerToptLeft.RotateDegree(180).Translate(rightPos, bottomPos);
return(new PathCollection(cornerToptLeft, cornerBottomLeft, cornerTopRight, cornerBottomRight));
}
public void Center()
{
RectangularePolygon shape = new RectangularePolygon(50, 50, 200, 60);
Assert.Equal(new PointF(150, 80), shape.Center);
}
public void Distance(TestPoint location, TestSize size, TestPoint point, float expectecDistance)
{
IPath shape = new RectangularePolygon(location, size);
Assert.Equal(expectecDistance, shape.Distance(point).DistanceFromPath);
}
public void ShapePaths()
{
IPath shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(shape, shape.AsClosedPath());
}
public void PointInPolygon(TestPoint location, TestSize size, TestPoint point, bool isInside)
{
RectangularePolygon shape = new RectangularePolygon(location, size);
Assert.Equal(isInside, shape.Contains(point));
}
private static IPath GetClippedRect(int imageWidth, int imageHeight, float cornerRadius)
{
var rect = new RectangularePolygon(-0.5f, -0.5f, imageWidth + 0.5f, imageHeight + 0.5f);
return(rect.Clip(new EllipsePolygon(imageWidth * 0.5f, imageHeight * 0.5f, cornerRadius)));
}
public void Left()
{
RectangularePolygon shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(10, shape.Left);
}
public void Right()
{
RectangularePolygon shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(22, shape.Right);
}
public void Bottom()
{
RectangularePolygon shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(24, shape.Bottom);
}
public void Top()
{
RectangularePolygon shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(11, shape.Top);
}
public void MaxIntersections_Shape()
{
IPath shape = new RectangularePolygon(10, 11, 12, 13);
Assert.Equal(4, shape.MaxIntersections);
}
public static IPath AsPath(this RectangularePolygon rect)
{
return((IPath)rect);
}
