just another inlet to tributary

inlet.js

width = 242
height = 221


rect = g.append("g").attr("width",width).attr("height",height).attr("fill","red")
rect.append("rect").attr("width",width).attr("height",height).attr("fill","red")
text = g.append("text").text("Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.")
		.attr("dominant-baseline","text-before-edge")
        .attr('y',100)
wrapGroupInMaskWidthFadeOut = (box,selection) =>
  
  height = parseInt(box.attr("height"))
  
  defs = d3.select("svg").append("defs")
  
  gradient = defs.append('linearGradient')
      .attr('id','fadeout')
      .attr('gradientUnits','userSpaceOnUse')
      .attr('x1','0%')
      .attr('x2','0%')
      .attr('y1','0%')
      .attr('y2',height)
   
  gradient.append('stop')
      .attr('stop-color',"#FFFFFF")
      .attr('offset',80+'%')
      
  gradient.append('stop')
      .attr('stop-color',"#FFFFFF")
      .attr('offset',85+'%')
  
  
  gradient.append('stop')
      .attr('stop-color',"#000000")
      .attr('offset',100+'%')    
          
  mask = defs.append("mask").attr("id","fadeOutMask")
  
  mask.append("rect").attr("width",width).attr("height",height).attr("fill","url(#fadeout)")
  
  new_group = g.append("g").attr("mask","url(#fadeOutMask)")
  elem = selection.node().cloneNode(true)
    
  selection.remove()
  new_group.node().appendChild(elem)
   
  return new_group

wrapTextToBoxWidth = (box,text,line_height = 22,padding=50) =>
        
        width  = parseInt(box.attr("width"))
        height = parseInt(box.attr("height"))
		
        text_string = text.text()
        text.text("") #Empty the old text
        test_text_container = box.append("text") 
        
        textArray  = text_string.split(" ")
        tspan      = text.append("tspan")
        tspan_copy = test_text_container.append("tspan")
        textSoFar  = undefined
        for pText in textArray

          textSoFar = tspan_copy.text()
          tspan_copy.text textSoFar + " " + pText
          textLength = tspan_copy.node().getComputedTextLength()
          
          if textLength >= (width - padding)
            tspan = text.append("tspan").attr("dy", line_height).attr("x", 0)
            tspan_copy.text('') 
		
          textSoFar = tspan.text()
          tspan.text textSoFar + " " + pText
        test_text_container.remove()  
        return text 
          
text = wrapTextToBoxWidth(rect, text) 
wrapGroupInMaskWidthFadeOut(rect,text)