外卖客户端容器化架构的演进 270 Flutter 包大小治理上的探索与实践 297 美团外卖持续交付的前世今生 326 微前端在美团外卖的实践 352 积木 Sketch 插件进阶开发指南 372 积木 Sketch Plugin：设计同学的贴心搭档 400 Native 地图与 Web 融合技术的应用与实践 431 目录 前端 | 2019 446 MTFlexbox 经网络，从图片或草图直 接生成代码，以微软 sketch2json 为代表；另一种是基于 Sketch 源文件，从中解析 出图层信息转化成 DSL 并生成代码，以 imgCook 为代表。经过实践，我们发现第 一种方案基于神经网络的代码生成算法虽然简单粗暴，但复杂层布局的准确率较低、 可解释程度不高导致后续无法持续优化。方案二中 Sketch 源文件信息量丰富、算法 自定义程度高、优化空间大。因此，我们调研了业界基于 自定义程度高、优化空间大。因此，我们调研了业界基于 Sketch 的代码自动生成方 案（已对外公布或者开源），发现了一些不足并尝试解决，下面从算法准确率、代码可 读性、研发流程覆盖度等方面做一下对比（该对比结果仅考察业界方案对我们自己业 务的适用性，实际结果可能存在差异）： 前端 < 57 ● 算法准确率方面：淘宝 imgCook 支持基于 AI 的组件识别，不支持成组布局， 准确率中等（从官网了解到

with an array of m counters for each of them The Count-Min Sketch ??? Vasiliki Kalavri | Boston University 2020 21 The Count-Min Sketch m counters h1 h2 hp … p pairwise independent hash functions Kalavri | Boston University 2020 22 for j=1 to p do i = hj(x) ci,j++ Adding an element to the sketch stream elements x All counters are initialized to 0s 0 0 0 6 9 3 3 1 5 0 0 3 8 2 7 9 m counters to decide whether an element is popular • For every element x, we add it to the sketch and then use the updated sketch to estimate its frequency. Computing top-k ??? Vasiliki Kalavri | Boston University

PRODUCT FOR TUPLES Sketch of a recursive algorithm: Sketch of a recursive algorithm: 90CARTESIAN PRODUCT FOR TUPLES CARTESIAN PRODUCT FOR TUPLES Sketch of a recursive algorithm: Sketch of a recursive algorithm: into �rst and rest 90.1CARTESIAN PRODUCT FOR TUPLES CARTESIAN PRODUCT FOR TUPLES Sketch of a recursive algorithm: Sketch of a recursive algorithm: 1. Split the given tuples into �rst and rest 2. Let C product of the rest 90.2CARTESIAN PRODUCT FOR TUPLES CARTESIAN PRODUCT FOR TUPLES Sketch of a recursive algorithm: Sketch of a recursive algorithm: 1. Split the given tuples into �rst and rest 2. Let C

manufacturer to see what the correct value of this setting is for their manufacturing process. Sketch pads on fabrication layers: If enabled, footprint pads on fabrication (F.Fab, B.Fab) layers will specified page size. Plot mode: For some plot formats, filled shapes may be plotted as outlines only (sketch mode). Use drill/place file origin: When enabled, the coordinate origin for plotted files will be Performs automatic placement of selected components Flip Board View View board from the opposite side Sketch Graphic Items Show graphic items in outline mode Decrease Layer Opacity Make the current layer more

brush engines, all with different effects. Left: pixel brush, Center: color smudge brush, Right: sketch brush. For example, the pixel-brush engine is simple and allows you to do most of your basic work faster when you need to blend and mix colors. If you want something totally different from that, the sketch brush engine helps with making messy lines, and the shape brush engine allows you to make big flats various methods on how the pixels end up on your canvas. Brush engines with names like Grid, Particles, Sketch and others will bring you new experiences on how the brushes work and a new landscape of possible

various methods on how the pixels end up on your canvas. Brush engines with names like Grid, Particles, Sketch and others will bring you new experiences on how the brushes work and a new landscape of possible get extra when using Krita? More brush customization You already met the brush settings editor. Sketch brushes, grid brushes, deform brushes, clone brushes, brushes that are textures, brushes that respond width())+"x"+str(doc.height())) We get an output like: ==== Warning: Script not saved! ==== Unnamed 2480x3508 sketch21 3508x2480 Blue morning 1600x900 Hopefully this will give you an idea of how to navigate the

manufacturer to see what the correct value of this setting is for their manufacturing process. Sketch pads on fabrication layers: If enabled, footprint pads on fabrication (F.Fab, B.Fab) layers will specified page size. Plot mode: For some plot formats, filled shapes may be plotted as outlines only (sketch mode). Use drill/place file origin: When enabled, the coordinate origin for plotted files will be Performs automatic placement of selected components Flip Board View View board from the opposite side Sketch Graphic Items Show graphic items in outline mode Decrease Layer Opacity Make the current layer

units Toggle full-screen cursor Display flashed items in sketch (outline) mode Display lines in sketch (outline) mode Display polygons in sketch (outline) mode Show negative objects in ghost color Show/hide

units Toggle full-screen cursor Display flashed items in sketch (outline) mode Display lines in sketch (outline) mode Display polygons in sketch (outline) mode Show negative objects in ghost color Show/hide