title: How to convert svg element coordinates to screen coordinates?
body: <p>Is there a way to get the screen/window coordinates from a svg element ?
  I have seen solutions for the other way around like: </p>
  
  <pre><code>function transformPoint(screenX, screenY) {
     var p = this.node.createSVGPoint()
      p.x = screenX
      p.y = screenY
      return p.matrixTransform(this.node.getScreenCTM().inverse())
  }
  </code></pre>
  
  <p>But what i need in my case are the screen coordinates.</p>
  
  <p>Sory if it's an obvious question, but i'm new to svg.
  Thanks.</p>