/*
title: Partition Data to Pies
category: dataset, pie, transform
titleCN: 分割数据到数个饼图
difficulty: 3
*/

option = {
    dataset: [{
        source: [
            ['Product', 'Sales', 'Price', 'Year'],
            ['Cake', 123, 32, 2011],
            ['Cereal', 231, 14, 2011],
            ['Tofu', 235, 5, 2011],
            ['Dumpling', 341, 25, 2011],
            ['Biscuit', 122, 29, 2011],
            ['Cake', 143, 30, 2012],
            ['Cereal', 201, 19, 2012],
            ['Tofu', 255, 7, 2012],
            ['Dumpling', 241, 27, 2012],
            ['Biscuit', 102, 34, 2012],
            ['Cake', 153, 28, 2013],
            ['Cereal', 181, 21, 2013],
            ['Tofu', 395, 4, 2013],
            ['Dumpling', 281, 31, 2013],
            ['Biscuit', 92, 39, 2013],
            ['Cake', 223, 29, 2014],
            ['Cereal', 211, 17, 2014],
            ['Tofu', 345, 3, 2014],
            ['Dumpling', 211, 35, 2014],
            ['Biscuit', 72, 24, 2014],
        ],
    }, {
        transform: {
            type: 'filter',
            config: { dimension: 'Year', value: 2011 }
        },
    }, {
        transform: {
            type: 'filter',
            config: { dimension: 'Year', value: 2012 }
        }
    }, {
        transform: {
            type: 'filter',
            config: { dimension: 'Year', value: 2013 }
        }
    }],
    series: [{
        type: 'pie', radius: 50, center: ['50%', '25%'],
        datasetIndex: 1
    }, {
        type: 'pie', radius: 50, center: ['50%', '50%'],
        datasetIndex: 2
    }, {
        type: 'pie', radius: 50, center: ['50%', '75%'],
        datasetIndex: 3
    }],


    // Optional. Only for responsive layout:
    media: [{
        query: { minAspectRatio: 1 },
        option: {
            series: [
                { center: ['25%', '50%'] },
                { center: ['50%', '50%'] },
                { center: ['75%', '50%'] }
            ]
        }
    }, {
        option: {
            series: [
                { center: ['50%', '25%'] },
                { center: ['50%', '50%'] },
                { center: ['50%', '75%'] }
            ]
        }
    }]
};