全宽和高SVG

时间:2012-02-21 17:44:16

标签: css css3 svg

困境:制作一个完整的窗口svg图像,填充方面失真,不使用SVG标签。为什么没有svg标签?因为我打算在页面的生命周期中稍后交换SVG(如果不经常),我还没有找到一种简单的方法。

尝试失败:

  <!-- for the record, my style are in a css file, 
       for example purposes they are style attrs-->

  <!-- Working in Webkit but not in firefox, in firefox blocks stretching 
       and places the svg in the middle of the tag-->
  <img src="my.svg" style="width:100%;height:100%;
       position:fixed;top:0;left:0;bottom:0;right:0;" />

  <!-- Both Webkit and Firefox block distortion, so the svg 
       appears centered in the div rather than conforming to the div-->
  <div style="width:100%;height:100%;position:fixed;top:0;
       left:0;bottom:0;right:0;background-size:cover;
       background-image:url(my.svg);" />

我也试过

 background-size:contain;
 background-size:cover;
 background-size:100% 100%;
 background-postion: center center;

但没有运气。

2 个答案:

答案 0 :(得分:50)

我使用

在Firefox,Chrome和Safari中使用它
<img src="my.svg" style="width:100%;height:100%;position:fixed;top:0;left:0;bottom:0;right:0;" />

诀窍是确保我显示的SVG在根目录中设置了preserveAspectRatio =“none”。另外,我必须删除SVG中的viewBox,或者确保它紧紧地裁剪图像内容。

例如:

<svg xmlns="http://www.w3.org/2000/svg" preserveAspectRatio="none" viewBox="0 0 5 3">
    <desc>Flag of Germany</desc>
    <rect id="black_stripe" width="5" height="3" y="0" x="0" fill="#000"/>
    <rect id="red_stripe" width="5" height="2" y="1" x="0" fill="#D00"/>
    <rect id="gold_stripe" width="5" height="1" y="2" x="0" fill="#FFCE00"/>
</svg>

希望您可以控制要尝试显示的SVG文件的内容。 : - )

答案 1 :(得分:2)

这是一个jQuery解决方案。如您所见,我将其与没有<svg>

的SVG一起使用

css

#bgImage{
    position:absolute;
    left:0;
    top:0;
}

html

<object width="10" height="10" id="bgImage" data="resources/runner.svg" type="image/svg+xml"></object>

javascript

//resize the background image
function resizeImage($selection){
    //get the ratio of the image
    var imageRatio = $selection.width() / $selection.height();

    //get the screen ratio
    var screenRatio = $(window).width() / $(window).height();

    //if the image is wider than the screen
    if(imageRatio > screenRatio){
        $selection.height($(window).height()); //set image height to screen height
        $selection.width($(window).height()*imageRatio); //set the correct width based on image ratio
    }

    //if the screen is wider than the image
    else{
        $selection.width($(window).width()); //set the image width to the screen width
        $selection.height($(window).width()/imageRatio); //set the correct image height based on the image ratio
    }
}

每当您想要调整图像大小时运行此选项,通常是在&#34; onresize&#34;和&#34; onload&#34;

$(window).resize(function(){
    resizeImage($("#bgImage"));
}