google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
  var data = new google.visualization.DataTable();
       data.addColumn('string', '日');
       data.addColumn('number', '推測');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addColumn('number', '推測');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addColumn('number', 'iOS前月');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addColumn('number', 'iOS当月');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addRows([
        ['1日',null,null,null,null,null,null,327,'UP!','狩野探幽、酒井忠勝ピックアップ: 03/01 → 03/16',422,'UP!','鴇羽、縹茶半次ピックアップ: 04/01 → 04/16'],
['2日',null,null,null,null,null,null,305,null,null,266,null,null],
['3日',null,null,null,null,null,null,266,null,null,336,null,null],
['4日',null,null,null,null,null,null,343,null,null,362,null,null],
['5日',null,null,null,null,null,null,403,null,null,380,null,null],
['6日',null,null,null,null,null,null,440,null,null,371,null,null],
['7日',null,null,null,null,null,null,464,null,null,357,null,null],
['8日',null,null,null,null,null,null,424,null,null,378,null,null],
['9日',null,null,null,null,null,null,408,null,null,512,null,null],
['10日',null,null,null,null,null,null,389,null,null,556,'UP!','御神籤神降: 04/10 → 04/20'],
['11日',null,null,null,null,null,null,388,null,null,203,null,null],
['12日',null,null,null,null,null,null,422,null,null,241,null,null],
['13日',null,null,null,null,null,null,478,null,null,307,null,null],
['14日',null,null,null,null,null,null,590,null,null,405,null,null],
['15日',null,null,null,null,null,null,367,null,null,485,'UP!','七日間限定天照神降: 04/15 → 04/21'],
['16日',null,null,null,null,null,null,412,'UP!','相模坊、叉梵ピックアップ: 03/16 → 04/01',278,'UP!','徳川光国、鶴間大吉ピックアップ: 04/16 → 05/01'],
['17日',null,null,null,null,null,null,345,null,null,247,null,null],
['18日',null,null,null,null,null,null,320,null,null,340,null,null],
['19日',null,null,null,null,null,null,411,null,null,348,null,null],
['20日',null,null,null,null,null,null,460,'UP!','鬼族ピックアップ: 03/20 → 04/05',373,null,null],
['21日',null,null,null,null,null,null,242,null,null,392,null,null],
['22日',null,null,null,null,null,null,303,null,null,576,'UP!','伊吹、鬼菱ピックアップ: 04/22 → 05/06'],
['23日',null,null,null,null,null,null,379,null,null,121,null,null],
['24日',null,null,null,null,null,null,408,null,null,198,null,null],
['25日',null,null,null,null,null,null,419,'UP!','【刻】飯綱、七太夫長能ピックアップ: 03/25 → 04/08',336,null,null],
['26日',null,null,null,null,null,null,90,null,null,395,null,null],
['27日',null,null,null,null,null,null,150,null,null,493,null,null],
['28日',null,null,null,null,null,null,210,null,null,570,null,null],
['29日',null,null,null,null,null,null,283,null,null,560,null,null],
['30日',null,null,null,null,null,null,321,null,null,460,null,null],
['31日',null,null,null,null,null,null,350,null,null,null,null,null]
        ]);
  var options = {
    chartArea: {'width':'85%', 'height':'65%', 'left':60 },
    'pointSize': 3,
    hAxis: { titleTextStyle:{italic:false}, format:'#',ticks: [1,5,10,15,20,25,30] },
    vAxis: { title:'2020年4月ランキング',  titleTextStyle:{italic:false}, format:'#',viewWindow:{min:0,max:600},direction:-1 },
    legend: {position: 'top' },
    tooltip: { trigger: 'both' },
    focusTarget: 'category',
    colors:['skyblue','pink','#2980b9','#e74c3c']
  };

  var chart = new google.visualization.LineChart(document.getElementById('graphField'));
  chart.draw(data, options);

  var lastlogday=30 -1 ;
  var lastlogcat=10;

  if(lastlogday>=0){
    chart.setSelection([{
      row: lastlogday,
      column: lastlogcat
    }]);
  
    google.visualization.events.addListener(chart, 'click', function() {
      if(chart.getSelection()[0]){
        //chart.setSelection(null)
      }
    });
  }

});