import React,  { Component } from 'react';
import { Chart, Geom, Axis, Tooltip, Coord, Label, Legend, View, Guide, Shape } from 'bizcharts';
import DataSet from '@antv/data-set';


const data = [
  {year: '2001', population: 41.8 },
  {year: '2002', population: 38 },
  {year: '2003', population: 33.7 },
  {year: '2004', population: 30.7 },
  {year: '2005', population: 25.8 },
  {year: '2006', population: 31.7 },
  {year: '2007', population: 33 },
  {year: '2008', population: 46 },
  {year: '2009', population: 38.3 },
  {year: '2010', population: 28 },
  {year: '2011', population: 42.5 },
  {year: '2012', population: 30.3 }
];

export default class PieC extends Component {
  
  render() {
    return (
      <Chart height={window.innerHeight} data={data} forceFit>
        <Coord type='polar' innerRadius={0.2} />
        <Tooltip />
        <Legend 
          position= 'right'
          offsetY={-window.innerHeight / 2 + 180}
          offsetX={-160} />
        <Geom
          type="interval"
          color="year"
          position="year*population"
          style={{lineWidth: 1,stroke: '#fff'}}
          >
        </Geom>
      </Chart>
    );
  }
}