golang-image/math/f32/f32.go
Nigel Tao 7bd522e167 math/f32, math/f64: add a comment that "Aff" stands for affine
transformation.

Change-Id: Ia5762d0578f78b17d85f4a952b397a05e6927bd0
Reviewed-on: https://go-review.googlesource.com/6914
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2015-03-06 02:15:01 +00:00

38 lines
1.1 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 affine transformation 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 affine transformation 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