计算所有“材料设计"立面的阴影值 [英] Calculating shadow values for all Material Design elevations

问题描述

在最新的Material Design文档中( https://www.google.com/design/spec/what-is-material/elevation-shadows.html#elevation-shadows-elevation-android- )，一组详尽的UI元素及其引用各自的高程(z索引，以dp为单位).例如，将开关升高 1dp ，而将对话框升高 24dp .目前，Google的UI元素列表使用10种不同的海拔高度.由于高程决定了元素的阴影，因此我们需要10个不同的阴影.那就是我迷路的地方.

In the latest Material Design documentation (https://www.google.com/design/spec/what-is-material/elevation-shadows.html#elevation-shadows-elevation-android-) an exhaustive set of UI elements are referenced with their respective elevation (z-index in dp). For example a switch is elevated by 1dp, while a dialog is elevated by 24dp. Currently Google's list of UI elements uses 10 different elevation levels. Since the elevation decides the shadow of the element, we'll need 10 different shadows. And that's where I'm lost.

如何为每个高程水平计算/推导正确的阴影值(颜色，x偏移，y偏移，模糊，散布)?

How do you calculate/deduce the right shadow values (color, x-offset, y-offset, blur, spread) for each elevation level?

我发现了不同的来源，这些来源已经为5个不同的海拔高度计算了阴影值( https://news.layervault.com/stories/42319-calculating-shadow-values-for-material-design ).但是，仅5个高程台阶是不够的，也没有对如何达到这些相应的值给出解释.

I've found different sources that have calculated shadow values for 5 different elevations (https://news.layervault.com/stories/42319-calculating-shadow-values-for-material-design). However, 5 elevation steps is not enough, nor do they give an explanation as to how they got to these respective values.

推荐答案

好消息！我得到了从深度1到深度24的所有阴影深度.我是从角度材料中获得的.希望对您有帮助.

Got a good news! I got all the shadow depths from depth-1 to depth-24. I got this from Angular Material. Hope this would help you.

.md-whiteframe-1dp {
    box-shadow:  0px 1px 3px 0px rgba(0, 0, 0, 0.2),
    0px 1px 1px 0px rgba(0, 0, 0, 0.14),
    0px 2px 1px -1px rgba(0, 0, 0, 0.12); }
.md-whiteframe-2dp {
    box-shadow:  0px 1px 5px 0px rgba(0, 0, 0, 0.2),
    0px 2px 2px 0px rgba(0, 0, 0, 0.14),
    0px 3px 1px -2px rgba(0, 0, 0, 0.12); }
.md-whiteframe-3dp {
    box-shadow:0px 1px 8px 0px rgba(0, 0, 0, 0.2),
    0px 3px 4px 0px rgba(0, 0, 0, 0.14),
    0px 3px 3px -2px rgba(0, 0, 0, 0.12); }
.md-whiteframe-4dp {
    box-shadow: 0px 2px 4px -1px rgba(0, 0, 0, 0.2),
    0px 4px 5px 0px rgba(0, 0, 0, 0.14),
    0px 1px 10px 0px rgba(0, 0, 0, 0.12); }
.md-whiteframe-5dp {
    box-shadow: 0px 3px 5px -1px rgba(0, 0, 0, 0.2),
    0px 5px 8px 0px rgba(0, 0, 0, 0.14),
    0px 1px 14px 0px rgba(0, 0, 0, 0.12); }
.md-whiteframe-6dp {
    box-shadow: 0px 3px 5px -1px rgba(0, 0, 0, 0.2),
    0px 6px 10px 0px rgba(0, 0, 0, 0.14),
    0px 1px 18px 0px rgba(0, 0, 0, 0.12); }
.md-whiteframe-7dp {
    box-shadow: 0px 4px 5px -2px rgba(0, 0, 0, 0.2),
    0px 7px 10px 1px rgba(0, 0, 0, 0.14),
    0px 2px 16px 1px rgba(0, 0, 0, 0.12); }
.md-whiteframe-8dp {
    box-shadow: 0px 5px 5px -3px rgba(0, 0, 0, 0.2),
    0px 8px 10px 1px rgba(0, 0, 0, 0.14),
    0px 3px 14px 2px rgba(0, 0, 0, 0.12); }
.md-whiteframe-9dp {
    box-shadow: 0px 5px 6px -3px rgba(0, 0, 0, 0.2),
    0px 9px 12px 1px rgba(0, 0, 0, 0.14),
    0px 3px 16px 2px rgba(0, 0, 0, 0.12); }
.md-whiteframe-10dp {
    box-shadow: 0px 6px 6px -3px rgba(0, 0, 0, 0.2),
    0px 10px 14px 1px rgba(0, 0, 0, 0.14),
    0px 4px 18px 3px rgba(0, 0, 0, 0.12); }
.md-whiteframe-11dp {
    box-shadow: 0px 6px 7px -4px rgba(0, 0, 0, 0.2),
    0px 11px 15px 1px rgba(0, 0, 0, 0.14),
    0px 4px 20px 3px rgba(0, 0, 0, 0.12); }
.md-whiteframe-12dp {
    box-shadow: 0px 7px 8px -4px rgba(0, 0, 0, 0.2),
    0px 12px 17px 2px rgba(0, 0, 0, 0.14),
    0px 5px 22px 4px rgba(0, 0, 0, 0.12); }
.md-whiteframe-13dp {
    box-shadow: 0px 7px 8px -4px rgba(0, 0, 0, 0.2),
    0px 13px 19px 2px rgba(0, 0, 0, 0.14),
    0px 5px 24px 4px rgba(0, 0, 0, 0.12); }
.md-whiteframe-14dp {
    box-shadow: 0px 7px 9px -4px rgba(0, 0, 0, 0.2),
    0px 14px 21px 2px rgba(0, 0, 0, 0.14),
    0px 5px 26px 4px rgba(0, 0, 0, 0.12); }
.md-whiteframe-15dp {
    box-shadow: 0px 8px 9px -5px rgba(0, 0, 0, 0.2),
    0px 15px 22px 2px rgba(0, 0, 0, 0.14),
    0px 6px 28px 5px rgba(0, 0, 0, 0.12); }
.md-whiteframe-16dp {
    box-shadow: 0px 8px 10px -5px rgba(0, 0, 0, 0.2),
    0px 16px 24px 2px rgba(0, 0, 0, 0.14),
    0px 6px 30px 5px rgba(0, 0, 0, 0.12); }
.md-whiteframe-17dp {
    box-shadow: 0px 8px 11px -5px rgba(0, 0, 0, 0.2),
    0px 17px 26px 2px rgba(0, 0, 0, 0.14),
    0px 6px 32px 5px rgba(0, 0, 0, 0.12); }
.md-whiteframe-18dp {
    box-shadow: 0px 9px 11px -5px rgba(0, 0, 0, 0.2),
    0px 18px 28px 2px rgba(0, 0, 0, 0.14),
    0px 7px 34px 6px rgba(0, 0, 0, 0.12); }
.md-whiteframe-19dp {
    box-shadow: 0px 9px 12px -6px rgba(0, 0, 0, 0.2),
    0px 19px 29px 2px rgba(0, 0, 0, 0.14),
    0px 7px 36px 6px rgba(0, 0, 0, 0.12); }
.md-whiteframe-20dp {
    box-shadow: 0px 10px 13px -6px rgba(0, 0, 0, 0.2),
    0px 20px 31px 3px rgba(0, 0, 0, 0.14),
    0px 8px 38px 7px rgba(0, 0, 0, 0.12); }
.md-whiteframe-21dp {
    box-shadow: 0px 10px 13px -6px rgba(0, 0, 0, 0.2),
    0px 21px 33px 3px rgba(0, 0, 0, 0.14),
    0px 8px 40px 7px rgba(0, 0, 0, 0.12); }
.md-whiteframe-22dp {
    box-shadow: 0px 10px 14px -6px rgba(0, 0, 0, 0.2),
    0px 22px 35px 3px rgba(0, 0, 0, 0.14),
    0px 8px 42px 7px rgba(0, 0, 0, 0.12); }
.md-whiteframe-23dp {
    box-shadow: 0px 11px 14px -7px rgba(0, 0, 0, 0.2),
    0px 23px 36px 3px rgba(0, 0, 0, 0.14),
    0px 9px 44px 8px rgba(0, 0, 0, 0.12); }
.md-whiteframe-24dp {
    box-shadow: 0px 11px 15px -7px rgba(0, 0, 0, 0.2),
    0px 24px 38px 3px rgba(0, 0, 0, 0.14),
    0px 9px 46px 8px rgba(0, 0, 0, 0.12); }

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