img-novb-height-all-1-ref.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<head>

  <link rel="stylesheet" type="text/css" href="svg-image-util.css" />

  <script src="svg-image-util.js"></script>

</head>

<body style="width: 600px"><!-- width for pct vals to resolve against -->

  <script>

      var svgParams = {

        viewBox:  null,   // This gets set on a case-by-case basis below.

        width  :  "10%",

        height :  "30px",

        meetOrSlice: null // This means "use pAR=none"

};

      // Descriptions below describe the behavior of the rows of <img> elements

      // in the corresponding test cases, which we mimic with specially-crafted

      // <embed> elements.

      // * FIRST TWO ROWS: <img> has width=auto height=auto

      //  - Each <img> renders w/ width = 300px (default)

      //  - Synthesized viewBox has width = 10% * viewport_width = .1*300 = 30

      //  - <img> & viewBox both get height=30px, from <svg> height attr

      svgParams.viewBox = [0, 0, 30, 30],

      appendSVGSubArrayWithParams(svgParams, "embed", "300px", "30px");

      // * SECOND TWO ROWS: <img> has width=auto, height=20px

      // Calculations are as above, except <img> now imposes height="20px".

      appendSVGSubArrayWithParams(svgParams, "embed", "300px", "20px");

      // * THIRD TWO ROWS: <img> has width=30px height=auto

      //  - <img> now renders w/ width = 30px (imposed by <img> width attr)

      //  - Synthesized viewBox has width = 10% * viewport_width = .1*30 = 3

      //  - <img> & viewBox both get height=30px, from <svg> height attr

      svgParams.viewBox =  [0, 0, 3, 30];

      appendSVGSubArrayWithParams(svgParams, "embed", "30px", "30px");

      // * FOURTH TWO ROWS: <img> has width=30px height=20px

      // Calculations are as above, except <img> now imposes height="20px".

      appendSVGSubArrayWithParams(svgParams, "embed", "30px", "20px");

  </script>

  <!-- Body gets populated by script -->

</body>

</html>