/// <summary>
 /// Depthカーブを描画するのに使う描画器を取得します
 /// </summary>
 /// <returns></returns>
 private LineGraphDrawer getDrawerDepth()
 {
     if (mDrawerDepth == null)
     {
         mDrawerDepth = new LineGraphDrawer(LineGraphDrawer.TYPE_STEP);
         mDrawerDepth.setDotMode(LineGraphDrawer.DOTMODE_ALWAYS);
         mDrawerDepth.setFillColor(PortUtil.CornflowerBlue);
     }
     return(mDrawerDepth);
 }
 /// <summary>
 /// 結果として得られるピッチベンドカーブを描画するのに使う描画器を取得します
 /// </summary>
 /// <returns></returns>
 private LineGraphDrawer getDrawerResulting()
 {
     if (mDrawerResulting == null)
     {
         mDrawerResulting = new LineGraphDrawer(LineGraphDrawer.TYPE_LINEAR);
         mDrawerResulting.setDotMode(LineGraphDrawer.DOTMODE_NO);
         mDrawerResulting.setFill(false);
         mDrawerResulting.setLineWidth(2);
         mDrawerResulting.setLineColor(PortUtil.ForestGreen);
     }
     return(mDrawerResulting);
 }