private void TestToStringWithCulture(CultureInfo culture)
{
CultureInfo originalCulture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = culture;
try
{
string listSeparator = culture.TextInfo.ListSeparator;
string decimalSeparator = culture.NumberFormat.NumberDecimalSeparator;
var o = new BezierCurve( new[]
{
new Vec3F(1.1f, 2.2f, 3.3f),
new Vec3F(4.4f, 5.5f, 6.6f),
new Vec3F(7.7f, 8.8f, 9.9f),
new Vec3F(10.10f, 11.11f, 12.12f),
});
string s = o.ToString(null, null);
TestToStringResults(o, s, listSeparator, decimalSeparator);
string s2 = o.ToString();
Assert.AreEqual(s, s2);
s = o.ToString("G", culture);
TestToStringResults(o, s, listSeparator, decimalSeparator);
s = o.ToString("R", culture);
TestToStringResults(o, s, listSeparator, decimalSeparator);
}
finally
{
Thread.CurrentThread.CurrentCulture = originalCulture;
}
}
private void TestToStringResults(BezierCurve o, string s, string listSeparator, string decimalSeparator)
{
string[] results = s.Split(new[] { listSeparator }, StringSplitOptions.RemoveEmptyEntries);
Assert.AreEqual(results.Length, 12);
foreach(string oneFloatString in results)
Assert.True(oneFloatString.Contains(decimalSeparator));
Vec3F[] originals = o.ControlPoints;
Assert.AreEqual(float.Parse(results[0]), originals[0].X);
Assert.AreEqual(float.Parse(results[1]), originals[0].Y);
Assert.AreEqual(float.Parse(results[2]), originals[0].Z);
Assert.AreEqual(float.Parse(results[3]), originals[1].X);
Assert.AreEqual(float.Parse(results[4]), originals[1].Y);
Assert.AreEqual(float.Parse(results[5]), originals[1].Z);
Assert.AreEqual(float.Parse(results[6]), originals[2].X);
Assert.AreEqual(float.Parse(results[7]), originals[2].Y);
Assert.AreEqual(float.Parse(results[8]), originals[2].Z);
Assert.AreEqual(float.Parse(results[9]), originals[3].X);
Assert.AreEqual(float.Parse(results[10]), originals[3].Y);
Assert.AreEqual(float.Parse(results[11]), originals[3].Z);
}
private void BuildCurves()
{
m_curves.Clear();
if (Count > 1)
{
if (Count == 2)
{
BuildInitialCurveFrom2Points();
}
else
{
Vec3F zeroVec = new Vec3F(0, 0, 0);
Vec3F[] tangents = CalcPointTangents();
for (int i = 1; i < Count; i++)
{
Vec3F chord = this[i].Position - this[i - 1].Position;
float segLen = chord.Length * 0.333f;
Vec3F[] points = new Vec3F[4];
points[0] = this[i - 1].Position;
points[3] = this[i].Position;
// calc points[1]
if (this[i - 1].Tangent2 != zeroVec)
{
points[1] = this[i - 1].Position + this[i - 1].Tangent2;
}
else
{
Vec3F tangent = tangents[i - 1];
if (Vec3F.Dot(chord, tangent) < 0)
{
tangent = -tangent;
}
points[1] = this[i - 1].Position + (tangent * segLen);
}
// calc points[2]
if (this[i].Tangent1 != zeroVec)
{
points[2] = this[i].Position + this[i].Tangent1;
}
else
{
Vec3F tangent = tangents[i];
if (Vec3F.Dot(-chord, tangent) < 0)
{
tangent = -tangent;
}
points[2] = this[i].Position + (tangent * segLen);
}
BezierCurve curve = new BezierCurve(points);
m_curves.Add(curve);
}
// Calculate last curve if is closed
if (m_isClosed)
{
Vec3F[] points = new Vec3F[4];
points[0] = this[Count - 1].Position;
points[3] = this[0].Position;
float tanLen = (points[3] - points[0]).Length / 3.0f;
Vec3F v = m_curves[m_curves.Count - 1].ControlPoints[2] - points[0];
v = v / v.Length;
points[1] = points[0] - (v * tanLen);
v = m_curves[0].ControlPoints[1] - points[3];
v = v / v.Length;
points[2] = points[3] - (v * tanLen);
BezierCurve curve = new BezierCurve(points);
m_curves.Add(curve);
}
}
}
}
