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Some more triangle stuff (WIP)

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This commit is contained in:
That_One_Nerd 2023-08-22 08:57:25 -04:00
parent 16c067ec3e
commit 58ac950068
2 changed files with 47 additions and 1 deletions
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3
Nerd_STF/Mathematics/Abstract/IPolygon.cs
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@ -19,6 +19,9 @@ public interface IPolygon<T> : IAverage<T>, IEquatable<T>,
public static abstract T operator /(T poly, float scale);
public static abstract T operator /(T poly, Float3 scale3);
public static abstract bool operator ==(T a, T b);
public static abstract bool operator !=(T a, T b);
public static abstract implicit operator T(Fill<Float3> fill);
public static abstract implicit operator T(Fill<Int3> fill);
public static abstract implicit operator T(Fill<Line> fill);

45
Nerd_STF/Mathematics/Geometry/Triangle.cs
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@ -8,7 +8,7 @@ public class Triangle : IClosestTo<Float3>, IContains<Float3>,
{
get // Heron's Formula
{
float a = AB.Length, b = AC.Length, c = BC.Length,
float a = AB.Length, b = BC.Length, c = CA.Length,
s = (a + b + c) / 2;
return Mathf.Sqrt(s * (s - a) * (s - b) * (s - c));
}
@ -77,6 +77,7 @@ public class Triangle : IClosestTo<Float3>, IContains<Float3>,
}
public Triangle(Fill<Float3> fill) : this(fill(0), fill(1), fill(2)) { }
public Triangle(Fill<Int3> fill) : this(fill(0), fill(1), fill(2)) { }
public Triangle(Fill<Line> fill) : this(fill(0), fill(1), fill(2)) { }
public Triangle(Fill<float> fill) : this(fill(0), fill(1), fill(2), fill(3), fill(4),
fill(5), fill(6), fill(7), fill(8)) { }
public Triangle(Fill<int> fill) : this(fill(0), fill(1), fill(2), fill(3), fill(4),
@ -134,5 +135,47 @@ public class Triangle : IClosestTo<Float3>, IContains<Float3>,
}
}
public bool Equals(Triangle? other) => other is not null && a == other.a
&& b == other.b && c == other.c;
public override bool Equals(object? obj)
{
if (obj is null) return false;
else if (obj is Triangle tri) return Equals(tri);
return false;
}
public override int GetHashCode() => base.GetHashCode();
public bool Contains(Float3 point)
{
Triangle pab = (point, a, b),
pbc = (point, b, c),
pca = (point, c, a);
return Mathf.Absolute(Area - (pab.Area + pbc.Area + pca.Area)) < 0.025f;
}
public Float3[] GetAllVerts() => new[] { a, b, c };
public static Triangle operator +(Triangle t, Float3 offset) =>
new(t.a + offset, t.b + offset, t.c + offset);
public static Triangle operator -(Triangle t, Float3 offset) =>
new(t.a - offset, t.b - offset, t.c - offset);
public static Triangle operator *(Triangle t, float factor) =>
new(t.a * factor, t.b * factor, t.c * factor);
public static Triangle operator *(Triangle t, Float3 factor) =>
new(t.a * factor, t.b * factor, t.c * factor);
public static Triangle operator /(Triangle t, float factor) =>
new(t.a / factor, t.b / factor, t.c / factor);
public static Triangle operator /(Triangle t, Float3 factor) =>
new(t.a / factor, t.b / factor, t.c / factor);
public static bool operator ==(Triangle a, Triangle b) => a.Equals(b);
public static bool operator !=(Triangle a, Triangle b) => !a.Equals(b);
public static implicit operator Triangle(Fill<Float3> fill) => new(fill);
public static implicit operator Triangle(Fill<Int3> fill) => new(fill);
public static implicit operator Triangle(Fill<Line> fill) => new(fill);
public static implicit operator Triangle(Fill<float> fill) => new(fill);
public static implicit operator Triangle(Fill<int> fill) => new(fill);
public static implicit operator Triangle((Float3 a, Float3 b, Float3 c) val) =>
new(val.a, val.b, val.c);
}