markdown Google Charts实验

Posted 2021-05-06

@import url(https://fonts.googleapis.com/css?family=Open+Sans:400,700);

body {
  font-family: "Open Sans", Arial;
  background: #EDEDED;
}
main {
  width: 800px;
  margin: 10px auto;
  padding: 10px 20px 30px;
  background: #FFF;
  box-shadow: 0 3px 5px rgba(0,0,0,0.2);
}
p {
  margin-top: 2rem;
  font-size: 13px;
}
#bar-chart {
  width: 800px;
  height: 300px;
  position: relative;
}
#line-chart {
  width: 800px;
  height: 300px;
  position: relative;
}
#bar-chart::before, #line-chart::before {
  content: "";
  position: absolute;
  display: block;
  width: 240px;
  height: 30px;
  left: 305px;
  top: 254px;
  background: #FAFAFA;
  box-shadow: 2px 2px 5px 0 #DDD;
}
#pie-chart {
  width: 800px;
  height: 250px;
  position: relative;
}
#pie-chart::before {
  content: "";
  position: absolute;
  display: block;
  width: 120px;
  height: 115px;
  left: 505px;
  top: 0;
  background: #FAFAFA;
  box-shadow: 2px 2px 5px 0 #DDD;
}
#pie-chart::after {
  content: "";
  position: absolute;
  display: block;
  top: 260px;
  left: 160px;
  width: 170px;
  height: 2px;
  background: rgba(0,0,0,0.1);
  border-radius: 50%;
  box-shadow: 0 0 3px 4px rgba(0,0,0,0.1);
}

<script src="https://www.google.com/jsapi"></script>

google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawCharts);
function drawCharts() {
  
  // actual bar chart data
  var barData = google.visualization.arrayToDataTable([
    ['Day', 'Page Views', 'Unique Views'],
    ['Sun',  1050,      600],
    ['Mon',  1370,      910],
    ['Tue',  660,       400],
    ['Wed',  1030,      540],
    ['Thu',  1000,      480],
    ['Fri',  1170,      960],
    ['Sat',  660,       320]
  ]);
  // set bar chart options
  var barOptions = {
    focusTarget: 'category',
    backgroundColor: 'transparent',
    colors: ['#339891', '#ff8282'],
    fontName: 'Open Sans',
    chartArea: {
      left: 50,
      top: 10,
      width: '100%',
      height: '70%'
    },
    bar: {
      groupWidth: '100%'
    },
    hAxis: {
      textStyle: {
        fontSize: 11
      }
    },
    vAxis: {
      minValue: 0,
      maxValue: 1500,
      baselineColor: '#6ad4cd',
      gridlines: {
        color: '#6ad4cd',
        count: 4
      },
      textStyle: {
        fontSize: 11
      }
    },
    legend: {
      position: 'bottom',
      textStyle: {
        fontSize: 12
      }
    },
    animation: {
      duration: 1200,
      easing: 'out',
			startup: true
    }
  };
  // draw bar chart twice so it animates
  var barChart = new google.visualization.ColumnChart(document.getElementById('bar-chart'));
  barChart.draw(barData, barOptions);
  
  // BEGIN LINE GRAPH
  
  function randomNumber(base, step) {
    return Math.floor((Math.random()*step)+base);
  }
  function createData(year, start1, start2, step, offset) {
    var ar = [];
    for (var i = 0; i < 12; i++) {
      ar.push([new Date(year, i), randomNumber(start1, step)+offset, randomNumber(start2, step)+offset]);
    }
    return ar;
  }
  var randomLineData = [
    ['Year', 'Page Views', 'Unique Views']
  ];
  for (var x = 0; x < 7; x++) {
    var newYear = createData(2007+x, 10000, 5000, 4000, 800*Math.pow(x,2));
    for (var n = 0; n < 12; n++) {
      randomLineData.push(newYear.shift());
    }
  }
  var lineData = google.visualization.arrayToDataTable(randomLineData);

  var lineOptions = {
    backgroundColor: 'transparent',
    colors: ['#339891', '#ff8282'],
    fontName: 'Open Sans',
    focusTarget: 'category',
    chartArea: {
      left: 50,
      top: 10,
      width: '100%',
      height: '70%'
    },
    curveType: 'function',  // smooth curve lines
    hAxis: {
      //showTextEvery: 12,
      textStyle: {
        fontSize: 11
      },
      baselineColor: 'transparent',
      gridlines: {
        color: 'transparent'
      }
    },
    vAxis: {
      minValue: 0,
      maxValue: 50000,
      baselineColor: '#6ad4cd',
      gridlines: {
        color: '#6ad4cd',
        count: 4
      },
      textStyle: {
        fontSize: 11
      }
    },
    legend: {
      position: 'bottom',
      textStyle: {
        fontSize: 12
      }
    },
    animation: {
      duration: 1200,
      easing: 'out',
			startup: true
    }
  };

  var lineChart = new google.visualization.LineChart(document.getElementById('line-chart'));
  lineChart.draw(lineData, lineOptions);
  
  // BEGIN PIE CHART
  
  // pie chart data
  var pieData = google.visualization.arrayToDataTable([
    ['Country', 'Page Hits'],
    ['USA',      7242],
    ['Canada',   4563],
    ['Mexico',   1345],
    ['Sweden',    946],
    ['Germany',  2150]
  ]);
  // pie chart options
  var pieOptions = {
    backgroundColor: 'transparent',
    pieHole: 0.4,
    colors: [ "#339891", 
              "#ff8282", 
              "#6ad4cd"
            ],
    pieSliceText: 'value',
    tooltip: {
      text: 'percentage'
    },
    fontName: 'Open Sans',
    chartArea: {
      width: '100%',
      height: '94%'
    },
    legend: {
      textStyle: {
        fontSize: 13
      }
    }
  };
  // draw pie chart
  var pieChart = new google.visualization.PieChart(document.getElementById('pie-chart'));
  pieChart.draw(pieData, pieOptions);
}

<main>
  <h2>Google Charts experiment</h2>
  <h5>Daily Page Hits</h5>
  <div id="bar-chart"></div>
  <h5>Traffic Over Time</h5>
  <div id="line-chart"></div>
  <h5>Page Hits per Country</h5>
  <div id="pie-chart"></div>
</main>

Google Charts experiment
------------------------
Playing with Google Charts and styling

A [Pen](https://codepen.io/rramona2/pen/KQxavX) by [ryan ramona](https://codepen.io/rramona2) on [CodePen](https://codepen.io).

[License](https://codepen.io/rramona2/pen/KQxavX/license).