test/visualMap-special-case.html

<!DOCTYPE html>
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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <link rel="stylesheet" href="lib/reset.css">
    </head>
    <body>
        <style>
            body {
            }
            #main {
                height: 500px;
            }
        </style>

        <h1>visualMap should not work on area that no data (show show itemStyle color "light blue")</h1>

        <div id="main"></div>













        <script>

            var echarts;
            var colorTool;
            var chart;
            var myChart;
            var groupCategories = [];
            var groupColors = [];

            require([
                'echarts',
                'map/js/china'
            ], function (ec) {
                echarts = ec;
                colorTool = echarts.color;

                var chart = echarts.init(document.getElementById('main'));

                option = {
                    "tooltip": {
                        "trigger": "item",
                        "formatter":function(params,ticket,cb){ //自定义显示框
                            params.value=params.value||0;
                            var contentHTML=params.name+" - "+params.value;
                            return contentHTML;
                        }
                    },
                    "visualMap": {
                        "min": 0,
                        "max": 96.89,
                        "left": 20,
                        "align": "bottom",
                        "type": "piecewise",
                        "bottom": 25,
                        "text": ["覆盖率(高-低)"],
                        "calculable": true,
                        "inverse": true,
                        "orient": "horizontal",
                        "inRange": {
                            "color": ["#d1eaff", "#1a96f0"]
                        },
                        formatter: function (value) {
                            return  parseInt(value)||0; // 范围标签显示内容。
                        }
                    },
                    "series": [{
                        "name": "中国",
                        "type": "map",
                        "mapType": "china",
                        "selectedMode": "multiple",
                        "itemStyle": {
                            "normal": {
                                "areaColor": "#d1eaff",
                                "borderColor": "#fff"
                            },
                            "emphasis": {
                                "areaColor": "#f1f5f8"
                            }
                        },
                        "data": [{
                            "name": "浙江",
                            "value": "96.89"
                        }, {
                            "name": "unknown",
                            "value": "2.67"
                        }, {
                            "name": "其它",
                            "value": "0.44"
                        }]
                    }]
                }

                chart.setOption(option);
            });

        </script>
    </body>
</html>