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   http://www.apache.org/licenses/LICENSE-2.0

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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/esl.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <script src="lib/testHelper.js"></script>
        <link rel="stylesheet" href="lib/reset.css" />
        <meta name="viewport" content="user-scalable=no,width=device-width,height=device-height">
    </head>
    <body>
        <style>
        </style>


        <div id="main0"></div>
        <div id="main1"></div>
        <div id="main2"></div>
        <div id="main3"></div>


        <script>

            require([
                'echarts'
            ], function (echarts) {

                var data = [
                    [0, 0]
                    [1, 1],
                    [2, 4],
                    [3, 3],
                    [4, 3],
                    [5, 3],
                    [6, 7],
                    [7, 7]
                ];

                var option = {
                    color: ['#4ea397', '#d0648a', '#f5b841'],
                    animation: false,
                    xAxis: {
                        type: 'value'
                    },
                    yAxis: {
                        type: 'value'
                    },
                    grid: {
                        left: 30,
                        right: 30
                    },
                    series: [{
                        type: 'line',
                        smoothMonotone: 'none',
                        smooth: true,
                        showSymbol: false,
                        connectNulls: true,
                        data: data,
                        lineStyle: {
                            width: 1
                        },
                        areaStyle: {
                            opacity: 0.4
                        }
                    }, {
                        type: 'line',
                        smooth: false,
                        symbol: 'circle',
                        symbolSize: 6,
                        connectNulls: true,
                        data: data,
                        lineStyle: {
                            width: 3,
                            type: 'dashed'
                        }
                    }]
                };

                testHelper.create(echarts, 'main0', {
                    option: option,
                    height: 550
                });
            })

        </script>


        <script>

            require([
                'echarts'
            ], function (echarts) {

                var symbolSize = 20;
                var data = [[15, 0], [-50, 10], [-56.5, 20], [-46.5, 30], [-22.1, 40]];
                var points = [];

                var option = {
                    title: {
                        text: 'Click to Add Points'
                    },
                    tooltip: {
                        formatter: function (params) {
                            var data = params.data || [0, 0];
                            return data[0].toFixed(2) + ', ' + data[1].toFixed(2);
                        }
                    },
                    grid: {
                        left: '3%',
                        right: '4%',
                        bottom: '3%',
                        containLabel: true
                    },
                    xAxis: {
                        min: -60,
                        max: 20,
                        type: 'value',
                        axisLine: {onZero: false}
                    },
                    yAxis: {
                        min: 0,
                        max: 40,
                        type: 'value',
                        axisLine: {onZero: false}
                    },
                    series: [
                        {
                            id: 'a',
                            type: 'line',
                            smooth: true,
                            symbolSize: symbolSize,
                            data: data
                        }
                    ]
                };

                var chart = testHelper.create(echarts, 'main1', {
                    title: 'click to add points, check smooth',
                    option: option,
                    height: 550
                });

                if (chart) {

                    var zr = chart.getZr();

                    zr.on('click', function (params) {
                        var pointInPixel = [params.offsetX, params.offsetY];
                        var pointInGrid = chart.convertFromPixel('grid', pointInPixel);

                        if (chart.containPixel('grid', pointInPixel)) {
                            data.push(pointInGrid);

                            chart.setOption({
                                series: [{
                                    id: 'a',
                                    data: data
                                }]
                            });
                        }
                    });

                    zr.on('mousemove', function (params) {
                        var pointInPixel = [params.offsetX, params.offsetY];
                        zr.setCursorStyle(chart.containPixel('grid', pointInPixel) ? 'copy' : 'default');
                    });
                }
            })

        </script>


        <script>

            require([
                'echarts'
            ], function (echarts) {
                option = {
                    legend: {
                    },
                    tooltip: {
                        trigger: 'axis',
                    },
                    yAxis: {
                        type: 'value'
                    },
                    xAxis: {
                        type: 'category',
                        axisLine: {onZero: false},
                        boundaryGap: false,
                        data: ['0', '10', '20', '30', '40', '50', '60', '70', '80']
                    },
                    series: [
                        {
                            name: '高度(km)与气温(°C)变化关系',
                            type: 'line',
                            smooth: true,
                            smoothMonotone: 'x',
                            lineStyle: {
                                normal: {
                                    width: 3,
                                    shadowColor: 'rgba(0,0,0,0.4)',
                                    shadowBlur: 10,
                                    shadowOffsetY: 10
                                }
                            },
                            data: [15, -50, -56.5, -46.5, -22.1, -2.5, -27.7, -55.7, -76.5]
                        }
                    ]
                };
                var chart = testHelper.create(echarts, 'main', {
                    title: 'FIXME: bad case',
                    option: option,
                    height: 550
                });

                if (chart) {

                    var zr = chart.getZr();

                    zr.on('click', function (params) {
                        var pointInPixel = [params.offsetX, params.offsetY];
                        var pointInGrid = chart.convertFromPixel('grid', pointInPixel);

                        if (chart.containPixel('grid', pointInPixel)) {
                            data.push(pointInGrid);

                            chart.setOption({
                                series: [{
                                    id: 'a',
                                    data: data
                                }]
                            });
                        }
                    });

                    zr.on('mousemove', function (params) {
                        var pointInPixel = [params.offsetX, params.offsetY];
                        zr.setCursorStyle(chart.containPixel('grid', pointInPixel) ? 'copy' : 'default');
                    });
                }
            })

        </script>


        <script>

            require([
                'echarts'
            ], function (echarts) {
                option = {
                    legend: {
                    },
                    tooltip: {
                        trigger: 'axis',
                    },
                    yAxis: {
                        type: 'value'
                    },
                    xAxis: {
                        type: 'category',
                        axisLine: {onZero: false},
                        boundaryGap: false,
                        data: ['0', '10', '20', '30', '40', '50', '60', '70', '80']
                    },
                    series: [
                        {
                            name: '高度(km)与气温(°C)变化关系',
                            type: 'line',
                            smooth: true,
                            smoothMonotone: 'x',
                            lineStyle: {
                                normal: {
                                    width: 3,
                                    shadowColor: 'rgba(0,0,0,0.4)',
                                    shadowBlur: 10,
                                    shadowOffsetY: 10
                                }
                            },
                            data: [15, -50, -56.5, -46.5, -22.1, -2.5, -27.7, -55.7, -76.5]
                        }
                    ]
                };
                var chart = testHelper.create(echarts, 'main2', {
                    title: 'FIXME: bad case',
                    option: option,
                    height: 550
                });

                if (chart) {

                    var zr = chart.getZr();

                    zr.on('click', function (params) {
                        var pointInPixel = [params.offsetX, params.offsetY];
                        var pointInGrid = chart.convertFromPixel('grid', pointInPixel);

                        if (chart.containPixel('grid', pointInPixel)) {
                            data.push(pointInGrid);

                            chart.setOption({
                                series: [{
                                    id: 'a',
                                    data: data
                                }]
                            });
                        }
                    });

                    zr.on('mousemove', function (params) {
                        var pointInPixel = [params.offsetX, params.offsetY];
                        zr.setCursorStyle(chart.containPixel('grid', pointInPixel) ? 'copy' : 'default');
                    });
                }
            })

        </script>


        <script>

            require([
                'echarts'
            ], function (echarts) {

                var data = [[1, 4862.4],[2, 5294.7],[3, 5934.5],[4, 7171.0],[5, 8964.4],[6, 10202.2],[7, 11962.5],[8, 14928.3],[9, 16909.2],[10, 18547.9],[11, 21617.8],[12, 26638.1],[13, 34634.4],[14, 46759.4],[15, 58478.1],[16, 67884.6],[17, 74462.6],[18, 79395.7]];
                var myRegression = {"points":[[1,4162.436774392433],[2,4982.540245685443],[3,5964.224478460412],[4,7139.324897630159],[5,8545.949297850559],[6,10229.71365621353],[7,12245.221430747537],[8,14657.834317479834],[9,17545.791890639037],[10,21002.74886464572],[11,25140.812259760092],[12,30094.176964828697],[13,36023.47759622737],[14,43120.997781149395],[15,51616.90579913977],[16,61786.7187999529],[17,73960.23765779613],[18,88532.24221386963]],"parameter":{"coefficient":3477.318605869281,"index":0.1798391846241552},"expression":"y = 3477.32e^(0.18x)"};

                option = {
                    title: {
                        text: '1981 - 1998 gross domestic product GDP (trillion yuan)',
                        subtext: 'By ecStat.regression',
                        sublink: 'https://github.com/ecomfe/echarts-stat',
                        left: 'center'
                    },
                    tooltip: {
                        trigger: 'axis',
                        axisPointer: {
                            type: 'cross'
                        }
                    },
                    xAxis: {
                        type: 'value',
                        splitLine: {
                            lineStyle: {
                                type: 'dashed'
                            }
                        },
                        splitNumber: 20
                    },
                    yAxis: {
                        type: 'value',
                        splitLine: {
                            lineStyle: {
                                type: 'dashed'
                            }
                        }
                    },
                    series: [{
                        name: 'scatter',
                        type: 'scatter',
                        label: {
                            emphasis: {
                                show: true,
                                position: 'left',
                                textStyle: {
                                    color: 'blue',
                                    fontSize: 16
                                }
                            }
                        },
                        data: data
                    }, {
                        name: 'line',
                        type: 'line',
                        showSymbol: false,
                        smooth: true,
                        smoothMonotone: 'x',
                        data: myRegression.points,
                        markPoint: {
                            itemStyle: {
                                normal: {
                                    color: 'transparent'
                                }
                            },
                            label: {
                                normal: {
                                    show: true,
                                    position: 'left',
                                    formatter: myRegression.expression,
                                    textStyle: {
                                        color: '#333',
                                        fontSize: 14
                                    }
                                }
                            },
                            data: [{
                                coord: myRegression.points[myRegression.points.length - 1]
                            }]
                        }
                    }]
                };

                testHelper.create(echarts, 'main3', {
                    title: 'FIXME: bad case',
                    option: option,
                    height: 550
                });
            })

        </script>


    </body>
</html>