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math/f32, math/f64: add Aff3 and Aff4 types.

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Change-Id: I504a070cf178aa688090ba50136db06856c16f73
Reviewed-on: https://go-review.googlesource.com/6552
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This commit is contained in:
Nigel Tao 2015-03-03 13:02:57 +11:00
parent 4f76d37dff
commit 7283107efc
2 changed files with 24 additions and 0 deletions
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12
math/f32/f32.go
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@ -23,3 +23,15 @@ type Mat3 [9]float32
//
// m[4*r + c] is the element in the r'th row and c'th column.
type Mat4 [16]float32
// Aff3 is a 3x3 matrix in row major order, where the bottom row
// is implicitly [0 0 1].
//
// m[3*r + c] is the element in the r'th row and c'th column.
type Aff3 [6]float32
// Aff4 is a 4x4 matrix in row major order, where the bottom row
// is implicitly [0 0 0 1].
//
// m[4*r + c] is the element in the r'th row and c'th column.
type Aff4 [12]float32

12
math/f64/f64.go
View File

@ -23,3 +23,15 @@ type Mat3 [9]float64
//
// m[4*r + c] is the element in the r'th row and c'th column.
type Mat4 [16]float64
// Aff3 is a 3x3 matrix in row major order, where the bottom row
// is implicitly [0 0 1].
//
// m[3*r + c] is the element in the r'th row and c'th column.
type Aff3 [6]float64
// Aff4 is a 4x4 matrix in row major order, where the bottom row
// is implicitly [0 0 0 1].
//
// m[4*r + c] is the element in the r'th row and c'th column.
type Aff4 [12]float64