public void FindZeroSegmentsTestNoSegments()
{
var array = new UInt32[] { 1, 0, 0, 1, 2, 3 };
var result = IntegerSegmentUtils.FindZeroSegments(array, 3);
Assert.AreEqual(0, result.Count);
}
public void IntersectionOfSegmentsNoIntersection()
{
var result = IntegerSegmentUtils.IntersectionOfSegments(
new IntegerSegment(1, 2),
new IntegerSegment(4, 5));
Assert.AreEqual(IntegerSegment.Zero, result);
}
public void IntersectionOfSegmentsPartialIntersection()
{
var a = new IntegerSegment(1, 4);
var b = new IntegerSegment(2, 8);
Assert.AreEqual(new IntegerSegment(2, 4), IntegerSegmentUtils.IntersectionOfSegments(a, b));
Assert.AreEqual(new IntegerSegment(2, 4), IntegerSegmentUtils.IntersectionOfSegments(b, a));
}
public void IntersectionOfSegmentsFullIntersection()
{
var result = IntegerSegmentUtils.IntersectionOfSegments(
new IntegerSegment(1, 2),
new IntegerSegment(1, 2));
Assert.AreEqual(new IntegerSegment(1, 2), result);
}
public void FindZeroSegmentsTestSimpleSegment2()
{
var array = new UInt32[] { 0, 0, 0, 0, 0, 1 };
var result = IntegerSegmentUtils.FindZeroSegments(array, 3);
Assert.AreEqual(1, result.Count);
Assert.AreEqual(0, result[0].Start);
Assert.AreEqual(4, result[0].End);
}
public void FindZeroSegmentsTestShortAllZeroSegment()
{
var array = new UInt32[] { 0, 0, 0, 0, };
var result = IntegerSegmentUtils.FindZeroSegments(array, 4);
Assert.AreEqual(1, result.Count);
Assert.AreEqual(0, result[0].Start);
Assert.AreEqual(3, result[0].End);
}
public void FindZeroSegmentsTest1()
{
var array = new UInt32[] { 1, 0, 0, 0, 0, 0, 1, 2, 1, 0, 3, 4, 0, 3, 5 };
var result = IntegerSegmentUtils.FindZeroSegments(array, 4);
Assert.AreEqual(1, result.Count);
Assert.AreEqual(1, result[0].Start);
Assert.AreEqual(5, result[0].End);
}
public void IntersectionOfSegments()
{
var result = IntegerSegmentUtils.IntersectionOfSegments(new[]
{
new[] { new IntegerSegment(1, 2), new IntegerSegment(4, 6) },
new[] { new IntegerSegment(1, 2), new IntegerSegment(5, 10) },
});
Assert.AreEqual(2, result.Count);
Assert.AreEqual(new IntegerSegment(1, 2), result[0]);
Assert.AreEqual(new IntegerSegment(5, 6), result[1]);
}
public void FindZeroSegmentsTestThreeSegments()
{
var array = new UInt32[] { 1, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 3, 4, 0, 0, 3, 0, 5 };
var result = IntegerSegmentUtils.FindZeroSegments(array, 2);
Assert.AreEqual(3, result.Count);
Assert.AreEqual(1, result[0].Start);
Assert.AreEqual(5, result[0].End);
Assert.AreEqual(9, result[1].Start);
Assert.AreEqual(10, result[1].End);
Assert.AreEqual(13, result[2].Start);
Assert.AreEqual(14, result[2].End);
}
public void FindBordersTest()
{
var flatImage = LoadFlatImageFromResource("ScreenGrid.Tests.Resources.ImageSimple.png");
const int minimalSegmentLength = 8;
var step = flatImage.Height / 8;
var list = new List <Tuple <int, int> >();
for (var iy = minimalSegmentLength + step; iy < flatImage.Height - (minimalSegmentLength + step); iy += step)
{
var stripe = flatImage.GetHorizontalStripe(iy);
var derivative = FlatImage.GetDerivative(stripe);
var segments = IntegerSegmentUtils.FindZeroSegments(derivative, minimalSegmentLength);
Assert.AreEqual(2, segments.Count, String.Format("iy={0}", iy));
}
}
