public void FirstPointIsIdenticalWithUpperLeftCorner()
{
HorizontalStepper hs = new HorizontalStepper(this.polygon, this.colorTranslation);
List <Step> steps = hs.CalculateFillSteps();
Assert.AreEqual(this.polygon.Vertices[0], steps[0].Point);
}
public void OutlineHasAtLeastAsManyStepsAsPolygonHasVertices()
{
HorizontalStepper h = new HorizontalStepper(this.polygon, this.colorTranslation);
var outlineSteps = h.CalculateOutlineSteps();
Assert.IsTrue(outlineSteps.Count >= this.polygon.Vertices.Count + 1);
}
public void FillStartsWithOutline()
{
HorizontalStepper h = new HorizontalStepper(this.polygon, this.colorTranslation);
var fillSteps = h.CalculateFillSteps();
var outlineSteps = h.CalculateOutlineSteps();
Assert.AreEqual(fillSteps.First().Point, outlineSteps.Last().Point);
}
public void FindsFiveIntersectionsForMediumHeightInverse()
{
this.colorTranslation.LineHeight = 0.45;
HorizontalStepper hs = new HorizontalStepper(this.inverseTriangle, this.colorTranslation);
List <Step> steps = hs.CalculateFillSteps();
Assert.AreEqual(5, steps.Count);
}
public void FindsThreeIntersectionsForLargeHeight()
{
this.colorTranslation.LineHeight = 0.9;
HorizontalStepper hs = new HorizontalStepper(this.triangle, this.colorTranslation);
List <Step> steps = hs.CalculateFillSteps();
Assert.AreEqual(3, steps.Count);
}
public void OutlineHasMoreStepsThanPolygonHasVerticesForSmallSteplength()
{
this.colorTranslation.MaxStepLength = this.polygon.Vertices[0].Distance(this.polygon.Vertices[1]) / 2;
HorizontalStepper h = new HorizontalStepper(this.polygon, this.colorTranslation);
var outlineSteps = h.CalculateOutlineSteps();
Assert.IsTrue(outlineSteps.Count > this.polygon.Vertices.Count + 1);
}
public void Angle0IsIdenticalWithHorizontal()
{
var ct = new ColorTranslation();
ct.LineHeight = 0.234;
Polygon p = this.createDefaultPolygon();
HorizontalStepper hs = new HorizontalStepper(p, ct);
AngleStepper a = new AngleStepper(p, ct);
List <Step> stepsHorizontal = hs.CalculateFillSteps();
List <Step> stepsAngle = a.CalculateFillSteps();
CollectionAssert.AreEqual(stepsHorizontal, stepsAngle);
}
public void StepsCountainNoDoubles()
{
HorizontalStepper hs = new HorizontalStepper(this.polygon, this.colorTranslation);
List <Step> steps = hs.CalculateFillSteps();
bool isRepeated = false;
var set = new HashSet <Tuple <double, double> >();
foreach (var x in steps)
{
if (!set.Add(new Tuple <double, double>(x.Point.X, x.Point.Y)))
{
isRepeated = true;
break;
}
}
Assert.IsFalse(isRepeated);
}
