Remove scale() transformation function.

Author: dirkschulze

css3-transforms/Overview.html

@@ -36,14 +36,14 @@
 
    <h1>CSS Transforms</h1>
 
-   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 15 March 2012</h2>
+   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 16 March 2012</h2>
 
    <dl>
     <dt>This version:
 
     <dd> <a
-     href="http://www.w3.org/TR/2012/ED-css3-transforms-20120315/">http://dev.w3.org/csswg/css3-transforms/</a>
-     <!--http://www.w3.org/TR/2012/WD-css3-transforms-20120315-->
+     href="http://www.w3.org/TR/2012/ED-css3-transforms-20120316/">http://dev.w3.org/csswg/css3-transforms/</a>
+     <!--http://www.w3.org/TR/2012/WD-css3-transforms-20120316-->
 
     <dt>Latest version:
 
@@ -2035,20 +2035,15 @@ <h3 id=two-d-transform-functions><span class=secno>13.1. </span>2D
     class=css>rotate(90deg)</code></code>&rsquo; would cause elements to
     appear rotated one-quarter of a turn in the clockwise direction.
 
-   <dt> <code class=css>skew(&lt;angle&gt;[, &lt;angle&gt;])</code>
-
-   <dd> specifies a <a href="#SkewDefined">2D skew</a> by [ax,ay] for X and
-    Y. If the second parameter is not provided, it is has a zero value.
-
    <dt> <code class=css>skewX(&lt;angle&gt;)</code>
 
-   <dd> specifies a <a href="#SkewDefined">2D skew transformation along the X
-    axis</a> by the given angle. The skew vector is [ax,0].
+   <dd> specifies a <a href="#SkewXDefined">2D skew transformation along the
+    X axis</a> by the given angle.
 
    <dt> <code class=css>skewY(&lt;angle&gt;)</code>
 
-   <dd> specifies a <a href="#SkewDefined">2D skew transformation along the Y
-    axis</a> by the given angle. The skew vector is [0,ay].
+   <dd> specifies a <a href="#SkewYDefined">2D skew transformation along the
+    Y axis</a> by the given angle.
   </dl>
 
   <h3 id=three-d-transform-functions><span class=secno>13.2. </span>3D
@@ -2177,7 +2172,7 @@ <h2 id=animation><span class=secno>15. </span> Transitions and Animations
     <ul>
      <li> For translate, translate3d, translateX, translateY, translateZ,
       scale, scale3d, scaleX, scaleY, scaleZ, rotate, rotateX, rotateY,
-      rotateZ, skew, skewX and skewY functions:
+      rotateZ, skewX and skewY functions:
       <ul>
        <li> the individual components of the function are interpolated
         numerically.
@@ -2219,9 +2214,9 @@ <h2 id=animation><span class=secno>15. </span> Transitions and Animations
       <p> The identity functions are translate(0), translate3d(0, 0, 0),
        translateX(0), translateY(0), translateZ(0), scale(1), scale3d(1, 1,
        1), scaleX(1), scaleY(1), scaleZ(1), rotate(0), rotate3d(1, 1, 1, 0),
-       rotateX(0), rotateY(0), rotateZ(0), skew(0), skewX(0), skewY(0),
-       matrix(1, 0, 0, 1, 0, 0) and matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
-       0, 0, 0, 0, 1).</p>
+       rotateX(0), rotateY(0), rotateZ(0), skewX(0), skewY(0), matrix(1, 0,
+       0, 1, 0, 0) and matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0,
+       1).</p>
     </ul>
 
    <li> If both the &lsquo;<code class=property>from</code>&rsquo; and
@@ -2459,12 +2454,19 @@ <h2 id=mathematical-description><span class=secno>17. </span> Mathematical
      href="#Rotate3dDefined">3D rotation</a> with vector [0,0,1] and
      parameter <em>alpha</em>.</p>
 
-   <li id=SkewDefined>
-    <p> A 2D skew transformation with the parameters <em>alpha</em> and
+   <li id=SkewXDefined>
+    <p> A 2D skew transformation along the X axis with the parameter
+     <em>alpha</em> is equivalent to the matrix:</p>
+    <img
+    alt="\begin{bmatrix} 1 & \tan(\alpha) & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}"
+    height=106 src=skewX.png width=155>
+
+   <li id=SkewYDefined>
+    <p> A 2D skew transformation along the Y axis with the parameter
      <em>beta</em> is equivalent to the matrix:</p>
     <img
-    alt="\begin{bmatrix} 1 & \tan(\alpha) & 0 & 0 \\ \tan(\beta) & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}"
-    height=106 src=skew.png width=205>
+    alt="\begin{bmatrix} 1 & 0 & 0 & 0 \\ \tan(\beta) & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}"
+    height=106 src=skewY.png width=155>
 
    <li id=Translate3dDefined>
     <p> A 3D translation with the parameters <em>tx</em>, <em>ty</em> and

css3-transforms/Transforms.src.html

@@ -1681,23 +1681,17 @@ <h3 id="two-d-transform-functions">2D Transformation Functions</h3>
                   defined by the '<code class="property">transform-origin</code>' property. For example, '<code class="css">rotate(90deg)</code>'
                   would cause elements to appear rotated one-quarter of a turn in the clockwise direction.
                 </dd>
-                <dt>
-                  <code class="css">skew(&lt;angle&gt;[, &lt;angle&gt;])</code>
-                </dt>
-                <dd>
-                  specifies a <a href="#SkewDefined">2D skew</a> by [ax,ay] for X and Y. If the second parameter is not provided, it is has a zero value.
-                </dd>
                 <dt>
                   <code class="css">skewX(&lt;angle&gt;)</code>
                 </dt>
                 <dd>
-                  specifies a <a href="#SkewDefined">2D skew transformation along the X axis</a> by the given angle. The skew vector is [ax,0].
+                  specifies a <a href="#SkewXDefined">2D skew transformation along the X axis</a> by the given angle.
                 </dd>
                 <dt>
                   <code class="css">skewY(&lt;angle&gt;)</code>
                 </dt>
                 <dd>
-                  specifies a <a href="#SkewDefined">2D skew transformation along the Y axis</a> by the given angle. The skew vector is [0,ay].
+                  specifies a <a href="#SkewYDefined">2D skew transformation along the Y axis</a> by the given angle.
                 </dd>
               </dl>
 
@@ -1828,7 +1822,7 @@ <h2 id="animation">
                   <ul>
                     <li>
                       For translate, translate3d, translateX, translateY, translateZ, scale,
-                      scale3d, scaleX, scaleY, scaleZ, rotate, rotateX, rotateY, rotateZ, skew, skewX
+                      scale3d, scaleX, scaleY, scaleZ, rotate, rotateX, rotateY, rotateZ, skewX
                       and skewY functions:
                         <ul>
                           <li>
@@ -1879,7 +1873,7 @@ <h2 id="animation">
                         The identity functions are translate(0), translate3d(0, 0, 0),
                         translateX(0), translateY(0), translateZ(0), scale(1), scale3d(1, 1, 1),
                         scaleX(1), scaleY(1), scaleZ(1), rotate(0), rotate3d(1, 1, 1, 0),
-                        rotateX(0), rotateY(0), rotateZ(0), skew(0), skewX(0), skewY(0),
+                        rotateX(0), rotateY(0), rotateZ(0), skewX(0), skewY(0),
                         matrix(1, 0, 0, 1, 0, 0) and
                         matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1).
                       </p>
@@ -2123,11 +2117,17 @@ <h2 id="mathematical-description">
                     with vector [0,0,1] and parameter <em>alpha</em>.
                   </p>
                 </li>
-                <li id="SkewDefined">
+                <li id="SkewXDefined">
+                  <p>
+                    A 2D skew transformation along the X axis with the parameter <em>alpha</em> is equivalent to the matrix:
+                  </p>
+                  <img src="skewX.png" alt="\begin{bmatrix} 1 & \tan(\alpha) & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}" width="155" height="106">
+                </li>
+                <li id="SkewYDefined">
                   <p>
-                    A 2D skew transformation with the parameters <em>alpha</em> and <em>beta</em> is equivalent to the matrix:
+                    A 2D skew transformation along the Y axis with the parameter <em>beta</em> is equivalent to the matrix:
                   </p>
-                  <img src="skew.png" alt="\begin{bmatrix} 1 & \tan(\alpha) & 0 & 0 \\ \tan(\beta) & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}" width="205" height="106">
+                  <img src="skewY.png" alt="\begin{bmatrix} 1 & 0 & 0 & 0 \\ \tan(\beta) & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{bmatrix}" width="155" height="106">
                 </li>
                 <li id="Translate3dDefined">
                   <p>