THE SVG TOOLKIT

.

Hello.

Cassie Evans
Front-end developer

 

twitter @cassiecodes
codepen @cassie-codes

SVG?
never heard of it.

  • Scalable Vector Graphic.

  • Image format and a XML based markup language.

  • Can be manipulated with CSS & JS.

  • SVG can be made accessible.

  • Small file size if made & optimised well.

What is SVG?

  • Scalable Vector Graphic.

  • Image format and a XML based markup language.

  • Can be manipulated with CSS & JS.

  • SVG can be made accessible.

  • Small file size if made & optimised well.

What is SVG?

  • Scalable Vector Graphic.

  • Image format and a XML based markup language.

  • Can be manipulated with CSS & JS.

  • SVG can be made accessible.

  • Small file size if made & optimised well.

What is SVG?

SVG is like an alternate universe version of HTML.

Focused on graphics instead

of documents

 

 

 

 

Artboard 3
<defs>
 <!--   fun things live here -->
</defs>

this is our toolbox

<svg viewBox="0 0 200 200">
  <defs>
    <linearGradient id="myGradient" gradientTransform="rotate(90)">
      <stop offset="20%" stop-color="#a37dd4" />
      <stop offset="90%" stop-color="#dc6fa3" />
    </linearGradient>
  </defs>
  
  <circle fill="url('#myGradient')" cx="0" cy="0" r="50" />
</svg>
<defs> and
<linearGradient>

to work unskillfully or clumsily at anything.

To manipulate experimentally.

To try to improve something by making small changes to it.

To busy oneself with a thing without useful results.

 

To busy oneself with a thing without useful results.

 

Clipping & Masking

Clipping

  • Clipping uses underlying geometry.

  • Transparency  isn't possible.

  • Think of it like cutting out.

Masking

  • Masking uses alpha values.

  • Everything under a white pixel is visible, and everything under a black pixel is hidden.

  • Think of it more like collage

https://codepen.io/yoksel/pen/MKgppV

Filters

.element {
  filter: blur(5px);
}

you know CSS Filters?

.element {
  filter: url(#our-filter);
}

Same same but different.

<svg>
 <defs>
  <filter id="gooey" height="130%">
    <feGaussianBlur in="SourceGraphic" stdDeviation="15" result="blur" />
    <feColorMatrix  in="blur" mode="matrix" values="..." result="goo" />
  </filter>
 </defs>
</svg>
<svg class="blobCont">
 <defs>
  <filter id="gooey">
   <feGaussianBlur in="SourceGraphic" stdDeviation="15" result="blur" />
   <feColorMatrix in="blur" mode="matrix" values="1 0 0 0 0..." result="goo" />
  </filter>
     
  <mask id="mask" x="0" y="0">
   <g style="filter: url(#gooey)" fill="white">
    <circle class="blob" cx="10%" cy="10%" r="80"/>
    <circle class="blob" cx="10%" cy="10%" r="80"/>
    <circle class="blob" cx="10%" cy="10%" r="80"/>
    <circle class="blob" cx="10%" cy="10%" r="80"/>
   </g>
  </mask>
     
 </defs>
  
 <image mask="url(#mask)" xlink:href="https://images.unsplash.com/photo-150"/>
</svg>

https://developer.mozilla.org/en-US/docs/Web/SVG/Element/filter

https://codepen.io/collection/DpxGJb

Patterns

Patterns

<svg>
    
  <!-- define the pattern -->
  <pattern id="checkerboard" x="0" y="0" width="200" height="200" patternUnits="userSpaceOnUse">
    
    <rect fill="black" x="0" width="100" height="100" y="0"></rect>
    <rect fill="black" x="100" width="100" height="100" y="100"></rect>
  </pattern>
  
  <!-- fill a shape with the pattern -->
  <rect x="0" y="0" width="100%" height="100%" fill="url(#checkerboard)"></rect>
  
</svg>

To manipulate experimentally.

To try to improve something by making small changes to it.

To busy oneself with a thing without useful results.

 

Tinkering - stay curious

By Cassie Evans

Tinkering - stay curious

  • 2,457