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diff --git a/files/zh-cn/web/css/transform-function/matrix3d/index.html b/files/zh-cn/web/css/transform-function/matrix3d/index.html new file mode 100644 index 0000000000..5308863ae8 --- /dev/null +++ b/files/zh-cn/web/css/transform-function/matrix3d/index.html @@ -0,0 +1,154 @@ +--- +title: matrix3d() +slug: Web/CSS/transform-function/matrix3d +translation_of: Web/CSS/transform-function/matrix3d() +original_slug: Web/CSS/transform-function/matrix3d() +--- +<div>{{CSSRef}}</div> + +<p><a href="/en-US/docs/Web/CSS">CSS</a> 函数 <strong><code>matrix3d()</code></strong> 以4x4齐次矩阵的形式定义一个3D转换。其结果是一个 {{cssxref("<transform-function>")}} 数据类型。</p> + +<h2 id="语法">语法</h2> + +<p><code>matrix3d()</code> 函数由16个参数指定. 这些参数以列为主的顺序进行描述。</p> + +<pre class="syntaxbox notranslate">matrix3d(<var>a1</var>, <var>b1</var>, <var>c1</var>, <var>d1</var>, <var>a2</var>, <var>b2</var>, <var>c2</var>, <var>d2</var>, <var>a3</var>, <var>b3</var>, <var>c3</var>, <var>d3</var>, <var>a4</var>, <var>b4</var>, <var>c4</var>, <var>d4</var>)</pre> + +<h3 id="Values">Values</h3> + +<dl> + <dt><var>a1</var> <var>b1</var> <var>c1</var> <var>d1</var> <var>a2</var> <var>b2</var> <var>c2</var> <var>d2</var> <var>a3</var> <var>b3</var> <var>c3</var> <var>d3</var></dt> + <dd>Are {{cssxref("<number>")}}s describing the linear transformation.</dd> + <dt><var>a4</var> <var>b4</var> <var>c4 d4</var></dt> + <dd>Are {{cssxref("<number>")}}s describing the translation to apply.</dd> +</dl> + +<div class="note"><strong>Note:</strong> Until Firefox 16, Gecko accepted a {{cssxref("<length>")}} value for <var>a4</var>, <var>b4</var> and <var>c4</var>.</div> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Cartesian coordinates on ℝ<sup>2</sup></th> + <th scope="col">Homogeneous coordinates on ℝℙ<sup>2</sup></th> + <th scope="col">Cartesian coordinates on ℝ<sup>3</sup></th> + <th scope="col">Homogeneous coordinates on ℝℙ<sup>3</sup></th> + </tr> + </thead> + <tbody> + <tr> + <td colspan="2" rowspan="2">This transformation applies to the 3D space and can't be represented on the plane.</td> + <td colspan="1" rowspan="2">A generic 3D <a href="https://en.wikipedia.org/wiki/Affine_transformation">affine transformation</a> can't be represented using a Cartesian-coordinate matrix, as translations are not linear transformations.</td> + <td colspan="1" rowspan="2"><math><mfenced><mtable><mtr><mtd>a1</mtd><mtd>a2</mtd><mtd>a3</mtd><mtd>a4</mtd></mtr><mtr><mtd>b1</mtd><mtd>b2</mtd><mtd>b3</mtd><mtd>b4</mtd></mtr><mtr><mtd>c1</mtd><mtd>c2</mtd><mtd>c3</mtd><mtd>c4</mtd></mtr><mtr><mtd>d1</mtd><mtd>d2</mtd><mtd>d3</mtd><mtd>d4</mtd></mtr></mtable> </mfenced> </math></td> + </tr> + </tbody> +</table> + +<h2 id="Matrix_translation_and_scale_example">Matrix translation and scale example</h2> + +<h3 id="HTML">HTML</h3> + +<pre class="brush: html notranslate"><div class="foo"> +Lorem ipsum dolor sit amet, consectetur adipisicing elit. +Quos quaerat sit soluta, quisquam exercitationem delectus qui unde in facere +necessitatibus aut quia porro dolorem nesciunt enim, at consequuntur aliquam esse? +</div> +</pre> + +<h3 id="CSS">CSS</h3> + +<pre class="brush: css notranslate">html { + width: 100%; +} +body { + height: 100vh; + /* Centering content */ + display: flex; + flex-flow: row wrap; + justify-content: center; + align-content: center; + +} +.foo { + width: 50%; + padding: 1em; + color: white; + background: #ff8c66; + border: 2px dashed black; + text-align: center; + font-family: system-ui, sans-serif; + font-size: 14px; + /* Setting up animation for better demonstration */ + animation: MotionScale 2s alternate linear infinite; +} + +@keyframes MotionScale { + from { + /* + Identity matrix is used as basis here. + The matrix below describes the + following transformations: + Translates every X point by -50px + Translates every Y point by -100px + Translates every Z point by 0 + Scales down by 10% + */ + transform: matrix3d( + 1,0,0,0, + 0,1,0,0, + 0,0,1,0, + -50,-100,0,1.1 + ); + + } + 50% { + transform: matrix3d( + 1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 0,0,0,0.9 + ); + } + to { + transform: matrix3d( + 1,0,0,0, + 0,1,0,0, + 0,0,1,0, + 50,100,0,1.1 + ) + } +}</pre> + +<h3 id="Result">Result</h3> + +<div>{{EmbedLiveSample('Matrix_translation_and_scale_example', '100%', '400px')}}</div> + +<h2 id="Specifications">Specifications</h2> + +<table class="standard-table"> + <thead> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + </thead> + <tbody> + <tr> + <td>{{SpecName("CSS Transforms 2", "#funcdef-matrix3d", "matrix3d()")}}</td> + <td>{{Spec2("CSS Transforms 2")}}</td> + <td>Initial definition</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</h2> + +<p>Please see the <code><a href="/en-US/docs/Web/CSS/transform-function#Browser_compatibility"><transform-function></a></code> data type for compatibility info.</p> + +<h2 id="See_also">See also</h2> + +<ul> + <li>{{cssxref("transform")}}</li> + <li>{{cssxref("<transform-function>")}}</li> + <li><a href="https://dev.opera.com/articles/understanding-the-css-transforms-matrix/">Understanding the CSS Transforms Matrix</a></li> +</ul> |