golang-image/math/f32/f32.go
Nigel Tao 7283107efc math/f32, math/f64: add Aff3 and Aff4 types.
Change-Id: I504a070cf178aa688090ba50136db06856c16f73
Reviewed-on: https://go-review.googlesource.com/6552
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-03-03 04:33:37 +00:00

38 lines
1.0 KiB
Go

// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package f32 implements float32 vector and matrix types.
package f32 // import "golang.org/x/image/math/f32"
// Vec2 is a 2-element vector.
type Vec2 [2]float32
// Vec3 is a 3-element vector.
type Vec3 [3]float32
// Vec4 is a 4-element vector.
type Vec4 [4]float32
// Mat3 is a 3x3 matrix in row major order.
//
// m[3*r + c] is the element in the r'th row and c'th column.
type Mat3 [9]float32
// Mat4 is a 4x4 matrix in row major order.
//
// 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