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Copy pathsize.go
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126 lines (106 loc) · 2.45 KB
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package curve
import (
"fmt"
"math"
)
type Size struct {
Width float64
Height float64
}
// Sz returns the size x×y.
func Sz(w, h float64) Size {
return Size{
Width: w,
Height: h,
}
}
func (sz Size) String() string {
return fmt.Sprintf("%g×%g", sz.Width, sz.Height)
}
func (sz Size) AsVec2() Vec2 {
return Vec2{
X: sz.Width,
Y: sz.Height,
}
}
func (sz Size) MaxSide() float64 {
return max(sz.Width, sz.Height)
}
func (sz Size) MinSide() float64 {
return min(sz.Width, sz.Height)
}
func (sz Size) Area() float64 {
return sz.Width * sz.Height
}
func (sz Size) Clamp(minSz, maxSz Size) Size {
w := min(max(sz.Width, minSz.Width), maxSz.Width)
h := min(max(sz.Height, minSz.Height), maxSz.Height)
return Size{
Width: w,
Height: h,
}
}
func (sz Size) Splat() (w float64, h float64) {
return sz.Width, sz.Height
}
// Round returns a new size with width and height rounded to the nearest integers.
func (sz Size) Round() Size {
return Size{
Width: math.Round(sz.Width),
Height: math.Round(sz.Height),
}
}
// Ceil returns a new size with width and height rounded up to the nearest integers.
func (sz Size) Ceil() Size {
return Size{
Width: math.Ceil(sz.Width),
Height: math.Ceil(sz.Height),
}
}
// Floor returns a new size with width and height rounded down to the nearest integers.
func (sz Size) Floor() Size {
return Size{
Width: math.Floor(sz.Width),
Height: math.Floor(sz.Height),
}
}
// Expand returns a new size with width and height rounded away from zero to the
// nearest integers.
func (sz Size) Expand() Size {
return Size{
Width: expand(sz.Width),
Height: expand(sz.Height),
}
}
// Trunc returns a new size with width and height rounded towards zero to the nearest
// integers.
func (sz Size) Trunc() Size {
return Size{
Width: math.Trunc(sz.Width),
Height: math.Trunc(sz.Height),
}
}
func (sz Size) AspectRatio() float64 {
return sz.Width / sz.Height
}
// IsInf reports whether at least one of width and height is infinite.
func (sz Size) IsInf() bool {
return math.IsInf(sz.Width, 0) || math.IsInf(sz.Height, 0)
}
// IsNaN reports whether at least one of width and height is NaN.
func (sz Size) IsNaN() bool {
return math.IsNaN(sz.Width) || math.IsNaN(sz.Height)
}
// Scale multiplies sz by f.
func (sz Size) Scale(f float64) Size {
return Size{
Width: sz.Width * f,
Height: sz.Height * f,
}
}
func (sz Size) Add(v Vec2) Size {
return Size{
Width: sz.Width + v.X,
Height: sz.Height + v.Y,
}
}