Giving this simple SVG :

svg {
  background-color: lightblue;
}

<p>Normal size :</p>
<svg viewBox="0 0 60 40" width="60" height="40" xmlns="http://www.w3.org/2000/svg">
  <circle cx="10" cy="10" r="5"/>
  <circle cx="30" cy="10" r="5"/>
  <circle cx="50" cy="10" r="5"/>
  <circle cx="10" cy="30" r="5"/>
  <circle cx="30" cy="30" r="5"/>
  <circle cx="50" cy="30" r="5"/>
</svg>

What I want to do, and I'm not sure SVG can do it, is that if with css I make my svg 3 times larger (60px => 180px), it will take the whole space BUT not doing a simple scale/zoom like effet tha happens when preserving aspect ratio. I need to keep my circles with 5px radius, and just increasing the space between them.

To go from this to this

CodePudding user response：

As commented by @ccprog: the primitives <rect>, <circle>, <ellipse> and <line>) support percentage values.

Apply padding to the parent svg to set fixed x an y offsets (eg. 10px/svg user units).

* {
  box-sizing: border-box;
}

.resize {
  resize: both;
  overflow: auto;
  padding: 1em;
  border: 1px solid #ccc;
}

svg {
  background-color: lightblue;
  padding: 0 10px;
  overflow: visible;
}

.svg2 {
  padding: 10px;
}

<p>resize me :</p>
<div >
  <svg id="svg" width="100%" height="40" xmlns="http://www.w3.org/2000/svg">
    <circle cx="0" cy="10" r="5" />
    <circle cx="0" cy="30" r="5" />

    <circle cx="50%" cy="10" r="5" />
    <circle cx="50%" cy="30" r="5" />

    <circle cx="100%" cy="10" r="5" />
    <circle cx="100%" cy="30" r="5" />
  </svg>

</div>

<div >
  <svg  width="100%" height="100%" xmlns="http://www.w3.org/2000/svg">
    <!-- align path center to x/y =0 by adding viewBox offset width/2 height/2 -->
    <symbol  id="iconHome" viewBox="20 20 40 40" overflow="visible">
        <path d="M36.4 22.2l-5.2 0l0 13l-3.4 0l0-16.7l-7.7-8.7l-7.7 8.7l0 16.7l-3.4 0l0-13l-5.2 0l16.4-17.4z"></path>
     </symbol>

    <use x="0" y="0%"  href="#iconHome" width="20" height="20" />
    <use x="0" y="100%" href="#iconHome" width="20" height="20" />
    
    <use x="50%" y="0%"  href="#iconHome" width="20" height="20" />
    <use x="50%" y="100%" href="#iconHome" width="20" height="20" />
    
    <use x="100%" y="0%"  href="#iconHome" width="20" height="20" />
    <use x="100%" y="100%" href="#iconHome" width="20" height="20" />
  </svg>
</div>

You can also apply percentage values for <path> elements by wrapping paths in a <symbol> element (2nd example).