pkg image, method (Rectangle) Add(Point) Rectangle
pkg image, method (Rectangle) Canon() Rectangle
pkg image, method (Rectangle) Dx() int
pkg image, method (Rectangle) Dy() int
pkg image, method (Rectangle) Empty() bool
pkg image, method (Rectangle) Eq(Rectangle) bool
pkg image, method (Rectangle) In(Rectangle) bool
pkg image, method (Rectangle) Inset(int) Rectangle

pkg image/color/palette, var Plan9 []color.Color
pkg image/color/palette, var WebSafe []color.Color
pkg image/draw, method (Op) Draw(Image, image.Rectangle, image.Image, image.Point)
pkg image/draw, type Drawer interface { Draw }
pkg image/draw, type Drawer interface, Draw(Image, image.Rectangle, image.Image, image.Point)
pkg image/draw, type Quantizer interface { Quantize }

static calculateRectsBasedSpeedIndex(timestampedPaintRects,viewport){const numberOfRects=timestampedPaintRects.length;if(numberOfRects===0){throw new Error('Can\'t calculate speed index without any paint '+'rectangles.');}