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Implement Matrix3x3 FromScale and ScaleBy

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josh
2024-02-01 21:02:18 -05:00
parent 792f7801bb
commit d37b685df9
3 changed files with 53 additions and 18 deletions
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24
include/J3ML/LinearAlgebra/Matrix3x3.h
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@@ -61,16 +61,7 @@ namespace LinearAlgebra {
void SetColumn(int i, const Vector3& vector);
void SetAt(int x, int y, float value);
void Orthonormalize(int c0, int c1, int c2)
{
Vector3 v0 = GetColumn(c0);
Vector3 v1 = GetColumn(c1);
Vector3 v2 = GetColumn(c2);
Vector3::Orthonormalize(v0, v1, v2);
SetColumn(c0, v0);
SetColumn(c1, v1);
SetColumn(c2, v2);
}
void Orthonormalize(int c0, int c1, int c2);
static Matrix3x3 LookAt(const Vector3& forward, const Vector3& target, const Vector3& localUp, const Vector3& worldUp);
@@ -90,8 +81,8 @@ namespace LinearAlgebra {
/// Creates a new transformation matrix that scales by the given factors.
// This matrix scales with respect to origin.
static Matrix3x3 Scale(float sx, float sy, float sz);
static Matrix3x3 Scale(const Vector3& scale);
static Matrix3x3 FromScale(float sx, float sy, float sz);
static Matrix3x3 FromScale(const Vector3& scale);
/// Returns the main diagonal.
Vector3 Diagonal() const;
@@ -124,10 +115,11 @@ namespace LinearAlgebra {
Vector2 Transform(const Vector2& rhs) const;
Vector3 Transform(const Vector3& rhs) const;
Vector3 operator[](int row) const
{
return Vector3{elems[row][0], elems[row][1], elems[row][2]};
}
Matrix3x3 ScaleBy(const Vector3& rhs);
Vector3 GetScale() const;
Vector3 operator[](int row) const;
Vector3 operator * (const Vector3& rhs) const;
Matrix3x3 operator * (const Matrix3x3& rhs) const;