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daily update on 20230309 by nitload youmu

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Nitload
2023-03-10 01:57:31 +08:00
parent 11cdd85b3b
commit 561196bed2
53 changed files with 1491 additions and 360 deletions
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源代码/StgSharp/Vector/Matrix2x4.cs
+15 -50
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@@ -20,7 +20,14 @@ namespace StgSharp.Math
row2 = r2;
}
public Matrix2x4(
float a11, float a12, float a13, float a14,
float a21, float a22, float a23, float a24
)
{
row1 = new Vec4D(a11,a12,a13,a14);
row2 = new Vec4D(a21,a22,a23,a24);
}
public bool Equals(Matrix2x4 other)
{
@@ -61,19 +68,19 @@ namespace StgSharp.Math
return $"{this.row1}\n{this.row2}";
}
public static Matrix2x4 operator +(Matrix2x4 array1,Matrix2x4 array2)
public static Matrix2x4 operator +(Matrix2x4 matrix1 ,Matrix2x4 matrix2)
{
return new Matrix2x4(
array1.row1 + array2.row1,
array1.row2 + array2.row2
matrix1.row1 + matrix2.row1,
matrix1.row2 + matrix2.row2
) ;
}
public static Matrix2x4 operator -(Matrix2x4 array1, Matrix2x4 array2)
public static Matrix2x4 operator -(Matrix2x4 matrix1, Matrix2x4 matrix2)
{
return new Matrix2x4(
array1.row1 - array2.row1,
array1.row2 - array2.row2
matrix1.row1 - matrix2.row1,
matrix1.row2 - matrix2.row2
);
}
@@ -93,48 +100,6 @@ namespace StgSharp.Math
);
}
public static unsafe Matrix2x2 operator *(Matrix2x4 array1,Matrix4x2 array2)
{
float* p1 = &array1.row1.X;
float* p2 = &array2.row2.X;
Vec2D a11 = new Vec2D(*(p1 + 0), *(p1 + 2));
Vec2D a12 = new Vec2D(*(p1 + 1), *(p1 + 3));
Vec2D a21 = new Vec2D(*(p1 + 4), *(p1 + 6));
Vec2D a22 = new Vec2D(*(p1 + 5), *(p1 + 7));
Colum2D b11 = new Colum2D(*(p2 + 0), *(p2 + 1));
Colum2D b12 = new Colum2D(*(p2 + 2), *(p2 + 3));
Colum2D b21 = new Colum2D(*(p2 + 4), *(p2 + 5));
Colum2D b22 = new Colum2D(*(p2 + 6), *(p2 + 7));
var s1 = a21 + a22;
var s2 = s1 - a11;
var s3 = a11 - a21;
var s4 = a12 - s2;
var t1 = b12 - b11;
var t2 = b22 - t1;
var t3 = b22 - b12;
var t4 = t2 - b21;
var m1 = a11 * b11;
var m2 = a12 * b11;
var m3 = s4 * b22;
var m4 = a22 * t4;
var m5 = s1 * t1;
var m6 = s2 * t2;
var m7 = s3 * t3;
var u1 = m1 + m2;
var u2 = m1 + m6;
var u3 = u2 + m7;
var u4 = u2 + m5;
var u5 = u4 + m3;
var u6 = u3 - m4;
var u7 = u3 + m5;
return new Matrix2x2(u1,u5,u6,u7);
}
}
}