ApachePieChart.prototype._draw3DPies = function()

in trinidad-impl/src/main/javascript/META-INF/adf/jsLibs/ApacheChart.js [2575:2750]
152 lines of code
22 McCabe index (conditional complexity)

ApachePieChart.prototype._draw3DPies = function(
  pieContainer, quadWidth, 
  quadHeight, iGroup)
{
  var svgDoc = this._svgDoc, model = this._model, yValues = model.getYValues();
  var groupLabels = model.getGroupLabels(), seriesColors = model.getSeriesColors();
  var pieSize = Math.min(quadWidth/2, quadHeight/2);
  var pieTotal = 0;
  
  if(iGroup == -1)
    iGroup = 0;

  var nPies = yValues[iGroup].length;      
  for (var i = 0; i < nPies; ++i)
  {
    pieTotal += yValues[iGroup][i];
  }

  var perspectiveHeight = pieSize/4, pieElems = new Array(nPies), 
      ringElems = new Array(nPies), edgeElems = new Array(nPies);
  var dataElems = this._dataElems, animate = (this._animDuration>0);
  if( perspectiveHeight> ApachePieChart._MAX_PERSPECTIVE_HEIGHT )
    perspectiveHeight = ApachePieChart._MAX_PERSPECTIVE_HEIGHT;
  
  var pathElem = svgDoc.getElementById("piePathPrototype"), pieStart = 0;
  var gradientsUsed = this._gradientsUsed;
  var defaultTransform = "translate(-10000, -10000)", pieAnimAngles = this._pieAnimAngles;

  for (var i = 0; i < nPies; ++i)
  {
    pathElem = pathElem.cloneNode(false);
    var valueRatio = 1 - (yValues[iGroup][i])/(pieTotal);
    if(animate)
    {
      dataElems.push(pathElem);
      pathElem.setAttribute("transform",defaultTransform);
      pieAnimAngles.push(pieStart+valueRatio/2);
    }

    var arcBeginX, arcBeginY, arcEndX, arcEndY;    
    arcBeginX = pieSize*Math.cos(pieStart*Math.PI*2);
    arcBeginY = pieSize*Math.sin(pieStart*Math.PI*2); 
    var sb = new ApacheChartBuffer();
    sb.append("M0,0L").append(arcBeginX).append(",").append(arcBeginY);

    arcEndX = pieSize*Math.cos((pieStart+valueRatio)*Math.PI*2);
    arcEndY = pieSize*Math.sin((pieStart+valueRatio)*Math.PI*2);
    
    if (valueRatio >= .5) 
    {
      sb.append("A").append(pieSize).append(" ").append(pieSize).append(" 1 0 0 ");
    }
    else
    {
      sb.append("A").append(pieSize).append(" ").append(pieSize).append(" 1 1 0 ");
    }
    
    sb.append(arcEndX).append(",").append(arcEndY);
    sb.append("z");

    // set the centroid as expandos
    if(this._tooltipsVisible)
    {
      pathElem.setAttribute("_apcGx", Math.round((arcBeginX+arcEndX)/3)); 
      pathElem.setAttribute("_apcGy", Math.round((arcBeginY+arcEndY)/3));
    }
            
    if(gradientsUsed)
      pathElem.setAttribute("fill", "url(#gradient"+i+")");
    else
      pathElem.setAttribute("fill", seriesColors[i]);
    pathElem.setAttribute("stroke", seriesColors[i]);
    pathElem.setAttribute("stroke-width", 1);
    pathElem.setAttribute("yValueIndex", iGroup);
    pathElem.setAttribute("seriesIndex", i);
    if(this._tooltipsVisible)
    {
      pathElem.addEventListener("mouseover",this.ShowToolTipCallback,false);
      pathElem.addEventListener("mouseout",this.HideToolTipCallback,false);      
    }
    pathElem.addEventListener("click",this.ClickCallback,false);

    var pathRingElem = pathElem.cloneNode(false);
    var pathEdgeElem = pathElem.cloneNode(false);
    if(animate)
    {
      dataElems.push(pathRingElem);
      pathRingElem.setAttribute("transform",defaultTransform);
      dataElems.push(pathEdgeElem);
      pathEdgeElem.setAttribute("transform",defaultTransform);
    }
    pathElem.setAttribute("d", sb.toString());
    
    sb = new ApacheChartBuffer();
    sb.append("M").append(arcBeginX).append(",").append(arcBeginY);
    if (valueRatio >= .5) // major arc
    {
      sb.append("A").append(pieSize).append(" ").append(pieSize).append(" 1 0 0 ");
    }
    else
    {
      sb.append("A").append(pieSize).append(" ").append(pieSize).append(" 1 1 0 ");
    }

    sb.append(arcEndX).append(",").append(arcEndY);        
    sb.append("v").append(perspectiveHeight);
    if (valueRatio >= .5) // major arc
    {
      sb.append("A").append(pieSize).append(" ").append(pieSize).append(" 1 0 1 ");
    }
    else
    {
      sb.append("A").append(pieSize).append(" ").append(pieSize).append(" 1 1 1 ");
    }
    
    sb.append(arcBeginX).append(",").append(arcBeginY+perspectiveHeight);
    sb.append("z");
    pathRingElem.setAttribute("d", sb.toString());
    
    sb = new ApacheChartBuffer();
    sb.append("M0,0L");
    sb.append(arcBeginX).append(",").append(arcBeginY);
    sb.append("v").append(perspectiveHeight);
    sb.append("L").append(0).append(",").append(perspectiveHeight);
    sb.append("z");
    sb.append("M0,0L");
    sb.append(arcEndX).append(",").append(arcEndY);
    sb.append("v").append(perspectiveHeight);
    sb.append("L").append(0).append(",").append(perspectiveHeight);
    sb.append("z");
    pathEdgeElem.setAttribute("d", sb.toString());
    
    pieStart += valueRatio;
    pieElems[i] = pathElem;
    ringElems[i] = pathRingElem;
    edgeElems[i] = pathEdgeElem;
  }
  
  // For the top half, edges have preference over rings
  var totalRatio = 0;
  for (var i = 0; i< nPies; ++i)
  {
    if(totalRatio <= .5)
      pieContainer.appendChild(ringElems[i]);
    totalRatio += (yValues[iGroup][i])/(pieTotal);
  }
  totalRatio = 0;
  for (var i = 0; i< nPies; ++i)
  {
    if(totalRatio <= .5)
      pieContainer.appendChild(edgeElems[i]);
    totalRatio += (yValues[iGroup][i])/(pieTotal);
  }
  
  // For the bottom half, rings have preference over edges
  totalRatio = 0;
  for (var i = 0; i< nPies; ++i)
  {
    if(totalRatio > .5)
      pieContainer.appendChild(edgeElems[i]);
    totalRatio += (yValues[iGroup][i])/(pieTotal);
  }

  totalRatio = 0;
  for (var i = 0; i< nPies; ++i)
  {
    if(totalRatio > .5)
      pieContainer.appendChild(ringElems[i]);
    totalRatio += (yValues[iGroup][i])/(pieTotal);
  }  
  
  for (var i = 0; i< nPies; ++i)
  {
    pieContainer.appendChild(pieElems[i]);
  }  
}