content: 
  package com.github.mikephil.charting.data;
  
  import com.github.mikephil.charting.utils.Utils;
  
  import java.util.ArrayList;
  
  public class PieDataSet extends DataSet<Entry> {
  
      /** the space in degrees between the chart-slices, default 0f */
      private float mSliceSpace = 0f;
  
      /** indicates the selection distance of a pie slice */
      private float mShift = 18f;
  
      public PieDataSet(ArrayList<Entry> yVals, String label) {
          super(yVals, label);
  
  //        mShift = Utils.convertDpToPixel(12f);
      }
  
      @Override
      public DataSet<Entry> copy() {
  
          ArrayList<Entry> yVals = new ArrayList<Entry>();
  
          for (int i = 0; i < mYVals.size(); i++) {
              yVals.add(mYVals.get(i).copy());
          }
  
          PieDataSet copied = new PieDataSet(yVals, getLabel());
          copied.mColors = mColors;
          copied.mSliceSpace = mSliceSpace;
          copied.mShift = mShift;
          return copied;
      }
  
      /**
       * sets the space that is left out between the piechart-slices, default: 0°
       * --> no space, maximum 45, minimum 0 (no space)
       * 
       * @param degrees
       */
      public void setSliceSpace(float degrees) {
  
          if (degrees > 45)
              degrees = 45f;
          if (degrees < 0)
              degrees = 0f;
  
          mSliceSpace = degrees;
      }
  
      /**
       * returns the space that is set to be between the piechart-slices of this
       * DataSet, in degrees
       * 
       * @return
       */
      public float getSliceSpace() {
          return mSliceSpace;
      }
  
      /**
       * sets the distance the highlighted piechart-slice of this DataSet is
       * "shifted" away from the center of the chart, default 12f
       * 
       * @param shift
       */
      public void setSelectionShift(float shift) {
          mShift = Utils.convertDpToPixel(shift);
      }
  
      /**
       * returns the distance a highlighted piechart slice is "shifted" away from
       * the chart-center
       * 
       * @return
       */
      public float getSelectionShift() {
          return mShift;
      }
  }
  