public void PointOnDivLineSide2()
{
var random = new Random(666);
for (var i = 0; i < 1000; i++)
{
var startY = +1 + 666 * random.NextDouble();
var endY = -1 - 666 * random.NextDouble();
var pointY = 666 * random.NextDouble() - 333;
var frontSideX = -1 - 666 * random.NextDouble();
var backSideX = -frontSideX;
var vertex1 = new Vertex(Fixed.Zero, Fixed.FromDouble(startY));
var vertex2 = new Vertex(Fixed.Zero, Fixed.FromDouble(endY - startY));
var line = new LineDef(
vertex1,
vertex2,
0, 0, 0, null, null);
var divLine = new DivLine();
divLine.MakeFrom(line);
var y = Fixed.FromDouble(pointY);
{
var x = Fixed.FromDouble(frontSideX);
Assert.AreEqual(0, Geometry.PointOnDivLineSide(x, y, divLine));
}
{
var x = Fixed.FromDouble(backSideX);
Assert.AreEqual(1, Geometry.PointOnDivLineSide(x, y, divLine));
}
}
}
public void DivLineSide3()
{
var random = new Random(666);
for (var i = 0; i < 1000; i++)
{
var startX = -1 - 666 * random.NextDouble();
var endX = +1 + 666 * random.NextDouble();
var pointX = 666 * random.NextDouble() - 333;
var frontSideY = -1 - 666 * random.NextDouble();
var backSideY = -frontSideY;
for (var j = 0; j < 100; j++)
{
var theta = 2 * Math.PI * random.NextDouble();
var ox = 666 * random.NextDouble() - 333;
var oy = 666 * random.NextDouble() - 333;
var vertex1 = new Vertex(
Fixed.FromDouble(ox + startX * Math.Cos(theta)),
Fixed.FromDouble(oy + startX * Math.Sin(theta)));
var vertex2 = new Vertex(
vertex1.X + Fixed.FromDouble((endX - startX) * Math.Cos(theta)),
vertex1.Y + Fixed.FromDouble((endX - startX) * Math.Sin(theta)));
var line = new LineDef(
vertex1,
vertex2,
0, 0, 0, null, null);
var divLine = new DivLine();
divLine.MakeFrom(line);
var node = new Node(
Fixed.FromDouble(ox + startX * Math.Cos(theta)),
Fixed.FromDouble(oy + startX * Math.Sin(theta)),
Fixed.FromDouble((endX - startX) * Math.Cos(theta)),
Fixed.FromDouble((endX - startX) * Math.Sin(theta)),
Fixed.Zero, Fixed.Zero, Fixed.Zero, Fixed.Zero,
Fixed.Zero, Fixed.Zero, Fixed.Zero, Fixed.Zero,
0, 0);
{
var x = Fixed.FromDouble(ox + pointX * Math.Cos(theta) - frontSideY * Math.Sin(theta));
var y = Fixed.FromDouble(oy + pointX * Math.Sin(theta) + frontSideY * Math.Cos(theta));
Assert.AreEqual(0, Geometry.DivLineSide(x, y, divLine));
Assert.AreEqual(0, Geometry.DivLineSide(x, y, node));
}
{
var x = Fixed.FromDouble(ox + pointX * Math.Cos(theta) - backSideY * Math.Sin(theta));
var y = Fixed.FromDouble(oy + pointX * Math.Sin(theta) + backSideY * Math.Cos(theta));
Assert.AreEqual(1, Geometry.DivLineSide(x, y, divLine));
Assert.AreEqual(1, Geometry.DivLineSide(x, y, node));
}
}
}
}
public void DivLineSide1()
{
var random = new Random(666);
for (var i = 0; i < 1000; i++)
{
var startX = -1 - 666 * random.NextDouble();
var endX = +1 + 666 * random.NextDouble();
var pointX = 666 * random.NextDouble() - 333;
var frontSideY = -1 - 666 * random.NextDouble();
var backSideY = -frontSideY;
var vertex1 = new Vertex(Fixed.FromDouble(startX), Fixed.Zero);
var vertex2 = new Vertex(Fixed.FromDouble(endX - startX), Fixed.Zero);
var line = new LineDef(
vertex1,
vertex2,
0, 0, 0, null, null);
var divLine = new DivLine();
divLine.MakeFrom(line);
var node = new Node(
Fixed.FromDouble(startX),
Fixed.Zero,
Fixed.FromDouble(endX - startX),
Fixed.Zero,
Fixed.Zero, Fixed.Zero, Fixed.Zero, Fixed.Zero,
Fixed.Zero, Fixed.Zero, Fixed.Zero, Fixed.Zero,
0, 0);
var x = Fixed.FromDouble(pointX);
{
var y = Fixed.FromDouble(frontSideY);
Assert.AreEqual(0, Geometry.DivLineSide(x, y, divLine));
Assert.AreEqual(0, Geometry.DivLineSide(x, y, node));
}
{
var y = Fixed.FromDouble(backSideY);
Assert.AreEqual(1, Geometry.DivLineSide(x, y, divLine));
Assert.AreEqual(1, Geometry.DivLineSide(x, y, node));
}
}
}