// Get the intersection box formed by two overlapped Cubes
public static I3dObject CubeIntersec(Cube cube1, Cube cube2)
{
// Look and fit for Max and Min cube by it's volume
Cube maxCube = (cube1.Volume() > cube2.Volume()) ? cube1 : cube2;
Cube minCube = (cube1.Volume() <= cube2.Volume()) ? cube1 : cube2;
// Look for any intersection vertex, min cube based
bool cubesIntersect = false;
for (short i = 0; i <= 7; i++)
{
if (IsInside(maxCube, minCube.Vertex(i)))
{
cubesIntersect = true;
}
}
// If cubes don't intersect, returns null
if (cubesIntersect == false)
{
return(null);
}
// Look for intersection volume
return(new Box(
(minCube.MinDimension(Dimension.Axis.x) < maxCube.MinDimension(Dimension.Axis.x)) ? maxCube.MinDimension(Dimension.Axis.x) : minCube.MinDimension(Dimension.Axis.x),
(minCube.MaxDimension(Dimension.Axis.x) > maxCube.MaxDimension(Dimension.Axis.x)) ? maxCube.MaxDimension(Dimension.Axis.x) : minCube.MaxDimension(Dimension.Axis.x),
(minCube.MinDimension(Dimension.Axis.y) < maxCube.MinDimension(Dimension.Axis.y)) ? maxCube.MinDimension(Dimension.Axis.y) : minCube.MinDimension(Dimension.Axis.y),
(minCube.MaxDimension(Dimension.Axis.y) > maxCube.MaxDimension(Dimension.Axis.y)) ? maxCube.MaxDimension(Dimension.Axis.y) : minCube.MaxDimension(Dimension.Axis.y),
(minCube.MinDimension(Dimension.Axis.z) < maxCube.MinDimension(Dimension.Axis.z)) ? maxCube.MinDimension(Dimension.Axis.z) : minCube.MinDimension(Dimension.Axis.z),
(minCube.MaxDimension(Dimension.Axis.z) > maxCube.MaxDimension(Dimension.Axis.z)) ? maxCube.MaxDimension(Dimension.Axis.z) : minCube.MaxDimension(Dimension.Axis.z)
));
}
// Get True if the point object is inside the cube object
public static bool IsInside(Cube cube, Point point)
{
if (point.X >= cube.MinDimension(Dimension.Axis.x) && point.X <= cube.MaxDimension(Dimension.Axis.x) &&
point.Y >= cube.MinDimension(Dimension.Axis.y) && point.Y <= cube.MaxDimension(Dimension.Axis.y) &&
point.Z >= cube.MinDimension(Dimension.Axis.z) && point.Z <= cube.MaxDimension(Dimension.Axis.z))
{
return(true);
}
return(false);
}
public void I3dObject_minDimension_maxDimension()
{
bool failed = false;
for (int i = 0; i < 100; i++)
{
var object1 = new Cubes.Cube(new Point(new Random().NextDouble(), new Random().NextDouble(), new Random().NextDouble()), new Random().NextDouble());
if (object1.MinDimension(Dimension.Axis.x) > object1.MaxDimension(Dimension.Axis.x))
{
failed = true; break;
}
if (object1.MinDimension(Dimension.Axis.y) > object1.MaxDimension(Dimension.Axis.y))
{
failed = true; break;
}
if (object1.MinDimension(Dimension.Axis.z) > object1.MaxDimension(Dimension.Axis.z))
{
failed = true; break;
}
}
Assert.IsFalse(failed);
}