调整线、点样式

通过PathSimplifier.renderEngine.setOption和setOptions可以设置线路的样式。

源代码编辑器
<!-- 重点参数：renderOptions -->
<!doctype html>
<html lang="zh-CN">

<head>
    <!-- 原始地址：//webapi.amap.com/ui/1.1/ui/misc/PathSimplifier/examples/adjust-style.html -->
    <base href="//webapi.amap.com/ui/1.1/ui/misc/PathSimplifier/examples/" />
    <meta charset="utf-8">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <title>调整线、点样式</title>
    <style>
    html,
    body {
        width: 100%;
        height: 100%;
        margin: 0px;
    }
    
    #outer-box {
        height: 100%;
        padding-right: 280px;
    }
    
    #container {
        height: 100%;
        width: 100%;
    }
    
    #panel {
        position: absolute;
        top: 0;
        right: 0;
        width: 280px;
        z-index: 999;
        height: calc(100% - 5px);
        overflow: hidden;
        overflow-y: auto;
    }
    
    #my-gui-container {
        height: 1200px;
    }
    
    #my-gui-container h3 {
        margin: 10px 0 3px 0;
    }
    
    #my-gui-container .close-button {
        display: none;
    }
    
    #my-gui-container .dg {
        float: none;
        margin: 0 0 5px 5px;
    }
    
    .hide {
        display: none;
    }
    
    #loadingTip {
        position: absolute;
        z-index: 9999;
        top: 0;
        left: 0;
        padding: 3px 10px;
        background: red;
        color: #fff;
        font-size: 13px;
    }
    
    #exportBtn {
        margin: 5px 0 5px 5px;
        display: block;
        width: 250px;
        line-height: 150%;
    }
    
    #exportConfigPanel {
        position: absolute;
        z-index: 9999;
        top: 0;
        left: 0;
        padding: 3px 10px;
        background: #1a1a1a;
        color: #fff;
        font-size: 13px;
        height: 90%;
        overflow: auto;
    }
    
    #exportConfigPanel pre {
        margin: 0;
    }
    </style>
</head>

<body>
    <div id="outer-box">
        <div id="container">
        </div>
        <div id="panel">
            <button id="exportBtn">显示配置信息</button>
            <div id="my-gui-container"></div>
        </div>
    </div>
    <script type="text/javascript" src='//webapi.amap.com/maps?v=2.0&key=您申请的key值'></script>
    <script src="../../../../plug/ext/dat.gui.min.js?v=1.1.1"></script>
    <!-- UI组件库 1.0 -->
    <script src="//webapi.amap.com/ui/1.1/main.js?v=1.1.1"></script>
    <script type="text/javascript">
    //创建地图
    var map = new AMap.Map('container', {
        zoom: 4
    });

    AMapUI.load(['ui/misc/PathSimplifier', 'lib/$', 'lib/utils'], function(PathSimplifier, $, utils) {

        if (!PathSimplifier.supportCanvas) {
            alert('当前环境不支持 Canvas！');
            return;
        }

        var defaultRenderOptions = {
            renderAllPointsIfNumberBelow: -1,
            pathTolerance: 2,
            keyPointTolerance: 0,
            pathLineStyle: {
                lineWidth: 3,
                strokeStyle: '#F7B538',
                borderWidth: 1,
                borderStyle: '#eeeeee',
                dirArrowStyle: false
            },
            pathLineHoverStyle: {
                lineWidth: 3,
                strokeStyle: 'rgba(204, 63, 88,1)',
                borderWidth: 1,
                borderStyle: '#cccccc',
                dirArrowStyle: false
            },
            pathLineSelectedStyle: {
                lineWidth: 6,
                strokeStyle: '#C11534',
                borderWidth: 1,
                borderStyle: '#cccccc',
                dirArrowStyle: true
            },
            dirArrowStyle: {
                stepSpace: 35,
                strokeStyle: '#ffffff',
                lineWidth: 2
            },
            startPointStyle: {
                radius: 4,
                fillStyle: '#109618',
                lineWidth: 1,
                strokeStyle: '#eeeeee'
            },
            endPointStyle: {
                radius: 4,
                fillStyle: '#dc3912',
                lineWidth: 1,
                strokeStyle: '#eeeeee'
            },
            keyPointStyle: {
                radius: 3,
                fillStyle: 'rgba(8, 126, 196, 1)',
                lineWidth: 1,
                strokeStyle: '#eeeeee'
            },
            keyPointHoverStyle: {
                radius: 4,
                fillStyle: 'rgba(0, 0, 0, 0)',
                lineWidth: 2,
                strokeStyle: '#ffa500'
            },
            keyPointOnSelectedPathLineStyle: {
                radius: 4,
                fillStyle: 'rgba(8, 126, 196, 1)',
                lineWidth: 2,
                strokeStyle: '#eeeeee'
            }
        };

        var pathSimplifierIns = new PathSimplifier({

            zIndex: 100,

            map: map,

            getPath: function(pathData, pathIndex) {

                return pathData.path;
            },
            getHoverTitle: function(pathData, pathIndex, pointIndex) {

                if (pointIndex >= 0) {
                    //point 
                    return pathData.name + '，点:' + pointIndex + '/' + pathData.path.length;
                }

                return pathData.name + '，点数量' + pathData.path.length;
            },
            renderOptions: defaultRenderOptions
        });

        window.pathSimplifierIns = pathSimplifierIns;

        $('<div id="loadingTip">加载数据，请稍候...</div>').appendTo(document.body);

        $.getJSON('https://a.amap.com/amap-ui/static/data/big-routes.json', function(d) {

            $('#loadingTip').remove();

            pathSimplifierIns.setData(d);

            pathSimplifierIns.setSelectedPathIndex(0);

            // var navg = pathSimplifierIns.createPathNavigator(7, {
            //     loop: true,
            //     speed: 300000
            // });

            // navg.start();

            // window.navg=navg;
        });

        var customContainer = document.getElementById('my-gui-container');

        function createRenderEngGui() {

            function RenderEngOptions() {

                this.pathTolerance = 2;
                this.keyPointTolerance = -1;
                this.renderAllPointsIfNumberBelow = 0;
            }

            var renderEngParams = new RenderEngOptions();

            var renderEngGui = new dat.GUI({
                width: 260,
                autoPlace: false,
            });

            renderEngGui.add(renderEngParams, 'renderAllPointsIfNumberBelow', 0, 1000).step(100).onChange(render);

            renderEngGui.add(renderEngParams, 'pathTolerance', 0, 50).step(1).onChange(render);

            renderEngGui.add(renderEngParams, 'keyPointTolerance', -1, 20).step(1).onChange(render);

            //renderEngGui.add(renderEngParams, 'disableHardcoreWhenPointsNumBelow', 0, 10000).step(1000).onChange(render);

            addGuiPanel('', '', renderEngGui);

            return renderEngParams;
        }

        function createPathLineStyleGui(target) {

            var pathLineStyleGui = new dat.GUI({
                width: 260,
                autoPlace: false,
            });

            var pathLineStyleParams = utils.extend({}, defaultRenderOptions[target]);

            //pathLineStyleGui.add(pathLineStyleParams, 'optionName');

            //pathLineStyleGui.addColor(pathLineStyleParams, 'fillStyle').onChange(render);

            pathLineStyleGui.addColor(pathLineStyleParams, 'strokeStyle').onChange(render);

            pathLineStyleGui.add(pathLineStyleParams, 'lineWidth', 1, 20).step(1).onChange(render);

            if (target !== 'dirArrowStyle') {

                pathLineStyleGui.addColor(pathLineStyleParams, 'borderStyle').onChange(render);

                pathLineStyleGui.add(pathLineStyleParams, 'borderWidth', 1, 20).step(1).onChange(render);

                pathLineStyleGui.add(pathLineStyleParams, 'dirArrowStyle').onChange(render);
            } else {
                pathLineStyleGui.add(pathLineStyleParams, 'stepSpace', 10, 100).step(10).onChange(render);
            }

            addGuiPanel(target, target, pathLineStyleGui);

            return pathLineStyleParams;
        }

        function createKeyPointStyleGui(target) {

            var keyPointStyleGui = new dat.GUI({
                width: 260,
                autoPlace: false,
            });

            var keyPointStyleParams = utils.extend({}, defaultRenderOptions[target]);

            keyPointStyleGui.add(keyPointStyleParams, 'radius', 1, 20).step(1).onChange(render);

            keyPointStyleGui.addColor(keyPointStyleParams, 'fillStyle').onChange(render);

            keyPointStyleGui.addColor(keyPointStyleParams, 'strokeStyle').onChange(render);

            keyPointStyleGui.add(keyPointStyleParams, 'lineWidth', 1, 20).step(1).onChange(render);

            addGuiPanel(target, target, keyPointStyleGui);

            return keyPointStyleParams;
        }


        function addGuiPanel(id, title, gui) {

            var container = document.createElement('div');

            container.id = id;

            if (title) {
                var tEle = document.createElement('h3');
                tEle.innerHTML = title;
                container.appendChild(tEle);
            }

            container.appendChild(gui.domElement);

            customContainer.appendChild(container);
        }

        var pathLineStyleOptions = ['pathLineStyle', 'pathLineHoverStyle', 'pathLineSelectedStyle', 'dirArrowStyle'],
            keyPointStyleOptions = ['startPointStyle', 'endPointStyle', 'keyPointStyle', 'keyPointHoverStyle', 'keyPointOnSelectedPathLineStyle'];

        var renderEngParams = createRenderEngGui(),
            styleParamsMap = {};

        for (var i = 0, len = pathLineStyleOptions.length; i < len; i++) {
            styleParamsMap[pathLineStyleOptions[i]] = createPathLineStyleGui(pathLineStyleOptions[i]);
        }

        for (var i = 0, len = keyPointStyleOptions.length; i < len; i++) {
            styleParamsMap[keyPointStyleOptions[i]] = createKeyPointStyleGui(keyPointStyleOptions[i]);
        }
        
        function render() {

            pathSimplifierIns.renderEngine.setOptions(renderEngParams);

            for (var k in styleParamsMap) {

                var params = utils.extend({}, styleParamsMap[k]);

                pathSimplifierIns.renderEngine.setOption(k, params);
            }

            pathSimplifierIns.renderLater(200);

            refreshConfigPanel();
        }

        var colorFlds = ['fillStyle', 'strokeStyle', 'borderStyle'],
            rgbAlphaRegx = /([\d\.]+)\s*\)/i;

        function isEmptyColor(color) {

            if (color.indexOf('rgba') !== 0) {
                return false;
            }

            var match = color.match(rgbAlphaRegx);

            if (match && parseFloat(match[1]) < 0.01) {
                return true;
            }

            return false;
        }

        function fixColors(opts) {

            if (utils.isObject(opts)) {

                for (var i = 0, len = colorFlds.length; i < len; i++) {

                    if (opts[colorFlds[i]] && isEmptyColor(opts[colorFlds[i]])) {
                        opts[colorFlds[i]] = null;
                    }
                }
            }

            return opts;
        }

        function exportRenderOptions() {

            var options = utils.extend({}, renderEngParams);

            for (var k in defaultRenderOptions) {

                var opts = styleParamsMap[k];

                if (opts) {
                    options[k] = fixColors(opts);
                }
            }
            return options;
        }

        function refreshConfigPanel() {

            var options = exportRenderOptions();

            var configStr = 'renderOptions: ' + JSON.stringify(options, null, 2);

            $('#exportConfigPanel').find('pre').html(configStr);
        }

        $('#exportBtn').click(function() {

            var panel = $('#exportConfigPanel');

            if (!panel.length) {
                panel = $('<div id="exportConfigPanel"><pre></pre></div>').appendTo(document.body);
                $(this).html('隐藏配置信息');

            } else {
                $(this).html('显示配置信息');
                panel.remove();
                return;
            }
            refreshConfigPanel();
        });

        render();
    });
    </script>
</body>

</html>
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