Golang draw.Rectangle类代码示例

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本文整理汇总了Golang中exp/draw.Rectangle类的典型用法代码示例。如果您正苦于以下问题：Golang Rectangle类的具体用法？Golang Rectangle怎么用？Golang Rectangle使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Rectangle类的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: drawsq

func drawsq(b draw.Image, p draw.Point, ptx int) {
	var r draw.Rectangle
	r.Min = p
	r.Max.X = r.Min.X + pcsz
	r.Max.Y = r.Min.Y + pcsz
	draw.Draw(b, r, draw.Black, nil, draw.ZP)
	draw.Draw(b, r.Inset(1), txpix[ptx], nil, draw.ZP)
}

开发者ID:edisonwsk，项目名称:golang-on-cygwin，代码行数:8，代码来源:xs.go

示例2: NewMandelbrot

// NewMandelbrot returns a mandelbrot-set calculator
// that shows at least the area r within wr.
//
func NewMandelbrot(r crect, wr draw.Rectangle, julia bool, jpoint complex128, iterations int) *Mandelbrot {
	btall := float64(wr.Dy()) / float64(wr.Dx())
	atall := (imag(r.min) - imag(r.min)) / (real(r.max) - real(r.min))
	if btall > atall {
		// bitmap is taller than area, so expand area vertically
		excess := (real(r.max)-real(r.min))*btall - (imag(r.max) - imag(r.min))
		r.min -= cmplx(0, excess/2.0)
		r.max += cmplx(0, excess/2.0)
	} else {
		// area is taller than bitmap, so expand area horizontally
		excess := (imag(r.max)-imag(r.min))/btall - (real(r.max) - real(r.min))
		r.min -= cmplx(excess/2.0, 0)
		r.max += cmplx(excess/2.0, 0)
	}
	var m Mandelbrot
	m.iterations = iterations
	m.palette = makePalette(range0, iterations)
	m.origin = r.min
	m.julia = julia
	m.jpoint = jpoint
	m.cr = r
	m.delta = cmplx(
		(real(r.max)-real(r.min))/float64(wr.Dx()),
		(imag(r.max)-imag(r.min))/float64(wr.Dy()),
	)
	m.r = wr
	return &m
}

开发者ID:zenoss，项目名称:rog-go，代码行数:31，代码来源:mandel.go

示例3: setpiece

func setpiece(p *Piece) {
	draw.Draw(bb, bbr, draw.White, nil, draw.ZP)
	draw.Draw(bbmask, bbr, draw.Transparent, nil, draw.ZP)
	br = draw.Rect(0, 0, 0, 0)
	br2 = br
	piece = p
	if p == nil {
		return
	}
	var op draw.Point
	var r draw.Rectangle
	r.Min = bbr.Min
	for i, pt := range p.d {
		r.Min.X += pt.X * pcsz
		r.Min.Y += pt.Y * pcsz
		r.Max.X = r.Min.X + pcsz
		r.Max.Y = r.Min.Y + pcsz
		if i == 0 {
			draw.Draw(bb, r, draw.Black, nil, draw.ZP)
			draw.Draw(bb, r.Inset(1), txpix[piece.tx], nil, draw.ZP)
			draw.Draw(bbmask, r, draw.Opaque, nil, draw.ZP)
			op = r.Min
		} else {
			draw.Draw(bb, r, bb, nil, op)
			draw.Draw(bbmask, r, bbmask, nil, op)
		}
		if br.Max.X < r.Max.X {
			br.Max.X = r.Max.X
		}
		if br.Max.Y < r.Max.Y {
			br.Max.Y = r.Max.Y
		}
	}
	br.Max = br.Max.Sub(bbr.Min)
	delta := draw.Pt(0, DY)
	br2.Max = br.Max.Add(delta)
	r = br.Add(bb2r.Min)
	r2 := br2.Add(bb2r.Min)
	draw.Draw(bb2, r2, draw.White, nil, draw.ZP)
	draw.Draw(bb2, r.Add(delta), bb, nil, bbr.Min)
	draw.Draw(bb2mask, r2, draw.Transparent, nil, draw.ZP)
	draw.Draw(bb2mask, r, draw.Opaque, bbmask, bbr.Min)
	draw.Draw(bb2mask, r.Add(delta), draw.Opaque, bbmask, bbr.Min)
}

开发者ID:edisonwsk，项目名称:golang-on-cygwin，代码行数:44，代码来源:xs.go

示例4: NewTile

func NewTile(r draw.Rectangle, calc Fractal, img *image.RGBA, wait bool) *Tile {
	t := new(Tile)
	t.r = r
	t.nrows = 0
	if img == nil {
		img = image.NewRGBA(image.Rect(0, 0, r.Dx(), r.Dy()))
	}
	t.calc = calc
	t.image = img
	if wait {
		t.calculate(nil, nil)
		t.nrows = img.Height()
	} else {
		// choose some vaguely appropriate colour
		col := calc.At(centre(r))
		draw.Draw(t.image, draw.Rect(0, 0, r.Dx(), r.Dy()), image.Uniform{col}, draw.ZP)
	}
	return t
}

开发者ID:zenoss，项目名称:rog-go，代码行数:19，代码来源:mandel.go

注：本文中的exp/draw.Rectangle类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。