Question

当我将鼠标悬停在标记上时，我正尝试设置标记突出显示。我的标记根据用户是否处于活动状态而着色。如果它们是活跃的，则标记进一步区分男性和女性。

我的HTML文件如下：

<html lang="en-US" xmlns="http://www.w3.org/1999/xhtml">

<head profile="http://gmpg.org/xfn/11">
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

  <!--The CSS files-->
  <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.2/leaflet.css"/>
  <link rel="stylesheet" href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" type="text/css">

  <!--The dependent .js files-->
  <script type="text/javascript" src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>
  <script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
  <script type="text/javascript" src="http://cdn.leafletjs.com/leaflet-0.7.2/leaflet.js"></script>
</head>

<body>
    <title>Circle Highlight</title>
    <style> html, body {
        height: 100%;
        margin: 0;
        padding: 0;
    }

    #map {
      height: 100%;
    }
    </style>
</body> 

<div id="map"></div>
<script type='text/javascript' src='C:\Users\Lukasz Obara\OneDrive\Programing\HTML\Slider\circles.geojson'></script>
<script type='text/javascript' src='C:\Users\Lukasz Obara\OneDrive\Programing\HTML\Slider\leaflet_demo_circles.js'></script>

我的circles.geojson文件：

var circles= {
    "type": "FeatureCollection",
    "features": [{
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.1966, 31.7825]
        },
        "properties": {
            "GPSId": "2",
            "DateStart": "2015-06-23",
            "DateClosed": "2016-01-23",
            "GPSUserName": "fake2",
            "GPSUserColor": "#FF5500",
            "Gender": "Male",
            "Active": 1
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.2, 31.780117]
        },
        "properties": {
            "GPSId": "6",
            "DateStart": "2015-06-23",
            "DateClosed": "2016-01-23",
            "GPSUserName": "fake1",
            "GPSUserColor": "#00FF57",
            "Gender": "Female",
            "Active": 0
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.201715, 31.779548]
        },
        "properties": {
            "GPSId": "15",
            "DateStart": "2015-02-21",
            "DateClosed": "2016-02-28",
            "GPSUserName": "fake10",
            "GPSUserColor": "#00FF57",
            "Gender": "Male",
            "Active": 1
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.200987, 31.779606]
        },
        "properties": {
            "GPSId": "16",
            "DateStart": "2015-01-01",
            "DateClosed": "2016-01-01",
            "GPSUserName": "fake11",
            "GPSUserColor": "#00FF57",
            "Gender": "Female",
            "Active": 0
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.200987, 31.780522]
        },
        "properties": {
            "GPSId": "17",
            "DateStart": "2015-02-04",
            "DateClosed": "2016-09-21",
            "GPSUserName": "fake12",
            "GPSUserColor": "#00FF57",
            "Gender": "Male",
            "Active": 1
        }
    }]
};

和我的javascript leaflet_demo_circles.js文件

var map = L.map( 'map', {
center: [31.780117, 35.2],
zoom: 17,
minZoom: 2,
maxZoom: 20
});

L.tileLayer('http://{s}.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.png', {
attribution: '&copy; <a href="http://osm.org/copyright" title="OpenStreetMap" target="_blank">OpenStreetMap</a> contributors | Tiles Courtesy of <a href="http://www.mapquest.com/" title="MapQuest" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png" width="16" height="16">',
    subdomains: ['otile1','otile2','otile3','otile4']
}).addTo(map);

// This will produce a static black circle
var circle2 = L.circle([31.7805, 35.203], 8, {
    color: "#000000",
    stroke: true,
    fillColor: "#000000",
    weight: 2,
    fillOpacity: 0.7
}).addTo(map);

///////////////////////////////////////////////////////////////////////////
//Aesthetics                                                             //
///////////////////////////////////////////////////////////////////////////

//define styles for circle markers
var blueMarker ={
    radius: 8,
    stroke: true,
    color: "#0000FF",
    weight: 2,
    opacity: 1,
    fill: true,
//  fillColor: "#FF0000",
    fillOpacity: 0.5
}

var pinkMarker ={
    radius: 8,
    stroke: true,
    color: "#FF99FF",
    weight: 2,
    opacity: 1,
    fill: true,
//  fillColor: "#FF0000",
    fillOpacity: 0.5
}

var greyMarker = {
    radius: 8,
    stroke: true,
    color: "#808080",
    weight: 2,
    opacity: 1,
    fill: true,
//  fillColor: "#FF0000",
    fillOpacity: 0.5
};

// Highlighted circles ///////////////////
var blueMarkerHighlighted ={
    radius: 10,
    stroke: true,
    color: "#0000FF",
    weight: 2,
    opacity: 1,
    fill: true,
//  fillColor: "#FF0000",
    fillOpacity: 0.75
}

var pinkMarkerHighlighted ={
    radius: 10,
    stroke: true,
    color: "#FF99FF",
    weight: 2,
    opacity: 1,
    fill: true,
//  fillColor: "#FF0000",
    fillOpacity: 0.75
}

var greyMarkerHighlighted = {
    radius: 10,
    stroke: true,
    color: "#808080",
    weight: 2,
    opacity: 1,
    fill: true,
//  fillColor: "#FF0000",
    fillOpacity: 0.75
};

///////////////////////////////////////////////////////////////////////////
//functions to attach styles and popups to the marker layer              //
///////////////////////////////////////////////////////////////////////////

//Assigns colors based on activity and gender
function colors (feature, layer) {
    if (feature.properties.Active === 1) {
        if (feature.properties.Gender === "Male") {
            return L.circleMarker(layer, blueMarker);
        } else {
            return L.circleMarker(layer, pinkMarker);
       }
    } else {
        return L.circleMarker(layer, greyMarker);
    }
};

function popup (feature, layer) {
    layer.bindPopup("<h1>" + feature.properties.GPSUserName + "</h1>");
};

///////////////////////////////////////////////////////////////////////////
//displaying the data on the map                                         //
///////////////////////////////////////////////////////////////////////////

dotlayer = L.geoJson(circles, {
    pointToLayer: colors,
    onEachFeature: popup
}).addTo(map);

我尝试用以下内容替换上面两个函数来指定颜色并在鼠标悬停时生效，但我没有成功。

function dotStyleDefault() {
    if (feature.properties.Active === 1) {
        if (feature.properties.Gender === "Male") {
            return blueMarker;
        } else {
            return pinkMarker;
       }
    } else {
        return greyMarker;
    }
};

function dotStyleHighlight(){
    if (feature.properties.Active === 1) {
        if (feature.properties.Gender === "Male") {
            return blueMarkerHighlighted;
        } else {
            return pinkMarkerHighlighted;
       }
    } else {
        return greyMarkerHighlighted;
    }
}

function highlightDot(e) {
    var layer = e.target;
    layer.setStyle(dotStyleHighlight);
};

function resetDotHighlight(e) {
    var layer = e.target;
    layer.setStyle(dotStyleDefault);
};

function onEachDot(feature, layer) {
    layer.on({
        mouseover: highlightDot,
        mouseout: resetDotHighlight
    });
    layer.bindPopup('<table style="width:150px"><tbody><tr><td><div><b>name:</b></div></td><td><div>' + feature.properties.GPSId + '</div></td></tr><tr class><td><div><b>year:</b></div></td><td><div>' + feature.properties.DateStart + '</div></td></tr></tbody></table>');
};

///////////////////////////////////////////////////////////////////////////
//displaying the data on the map                                         //
///////////////////////////////////////////////////////////////////////////

dotlayer = L.geoJson(circles, {
    pointToLayer: function (feature, latlng) {
        return L.circleMarker(latlng, dotStyleDefault);
    },
    onEachFeature: onEachDot
}).addTo(map);

Answer 1

我找到的解决方案是修改geojson文件以包含Colour属性。因此circles.geojson类似于

var circles = {
    "type": "FeatureCollection",
    "features": [{
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.1966, 31.7825]
        },
        "properties": {
            "GPSId": "2",
            "DateStart": "2015-06-23",
            "DateClosed": "2016-01-23",
            "GPSUserName": "2",
            "GPSUserColor": "#FF5500",
            "Gender": "Male",
            "Active": 1,
            "Colour": "#0000FF" //THIS IS ADDED BASED ON ACTIVITY LEVEL AND GENDER
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.2, 31.780117]
        },
        "properties": {
            "GPSId": "6",
            "DateStart": "2015-06-23",
            "DateClosed": "2016-01-23",
            "GPSUserName": "fake1",
            "GPSUserColor": "#00FF57",
            "Gender": "Female",
            "Active": 0,
            "Colour": "#808080" //THIS IS ADDED BASED ON ACTIVITY LEVEL AND GENDER
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.201715, 31.779548]
        },
        "properties": {
            "GPSId": "15",
            "DateStart": "2015-02-21",
            "DateClosed": "2016-02-28",
            "GPSUserName": "fake10",
            "GPSUserColor": "#00FF57",
            "Gender": "Male",
            "Active": 1,
            "Colour": "#0000FF" //THIS IS ADDED BASED ON ACTIVITY LEVEL AND GENDER
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.200987, 31.779606]
        },
        "properties": {
            "GPSId": "16",
            "DateStart": "2015-01-01",
            "DateClosed": "2016-01-01",
            "GPSUserName": "fake11",
            "GPSUserColor": "#00FF57",
            "Gender": "Female",
            "Active": 0,
            "Colour": "#808080" //THIS IS ADDED BASED ON ACTIVITY LEVEL AND GENDER
        }
    }, {
        "type": "Feature",
        "geometry": {
            "type": "Point",
            "coordinates": [35.200987, 31.780522]
        },
        "properties": {
            "GPSId": "17",
            "DateStart": "2015-02-04",
            "DateClosed": "2016-09-21",
            "GPSUserName": "fake12",
            "GPSUserColor": "#00FF57",
            "Gender": "Male",
            "Active": 1,
            "Colour": "#0000FF" //THIS IS ADDED BASED ON ACTIVITY LEVEL AND GENDER
        }
    }

然后我可以省略circles.js中的条件语句，这将导致：

var map = L.map( 'map', {
    center: [31.780117, 35.2],
    zoom: 17,
    minZoom: 2,
    maxZoom: 20
});

L.tileLayer('http://{s}.mqcdn.com/tiles/1.0.0/map/{z}/{x}/{y}.png', {
    attribution: '&copy; <a href="http://osm.org/copyright" title="OpenStreetMap" target="_blank">OpenStreetMap</a> contributors | Tiles Courtesy of <a href="http://www.mapquest.com/" title="MapQuest" target="_blank">MapQuest</a> <img src="http://developer.mapquest.com/content/osm/mq_logo.png" width="16" height="16">',
    subdomains: ['otile1','otile2','otile3','otile4']
}).addTo(map);

// This will produce a static black circle
var circle2 = L.circle([31.7805, 35.203], 8, {
    color: "#000000",
    stroke: true,
    fillColor: "#000000",
    weight: 2,
    fillOpacity: 0.7
}).addTo(map);

///////////////////////////////////////////////////////////////////////////////
//Aesthetics                                                                 //
///////////////////////////////////////////////////////////////////////////////

var markerDefault = {
    radius: 8,
    weight: 2,
    opacity: 1,
    fillOpacity: 0.5
};

var markerHighlight = {
    radius: 10,
    weight: 3,
    opacity: 1,
    fillOpacity: 0.75
};

///////////////////////////////////////////////////////////////////////////////
//functions to attach styles and popups to the marker layer                  //
///////////////////////////////////////////////////////////////////////////////

function highlightDot(e) {
    var layer = e.target;
    layer.setStyle(markerHighlight);
};

function resetDotHighlight(e) {
    var layer = e.target;
    layer.setStyle(markerDefault);
};

function onEachDot(feature, layer) {
    layer.on({
        mouseover: highlightDot,
        mouseout: resetDotHighlight
    });
    layer.bindPopup('<table style="width:150px"><tbody><tr><td><div><b>name:</b></div></td><td><div>' + feature.properties.GPSId + '</div></td></tr><tr class><td><div><b>year:</b></div></td><td><div>' + feature.properties.DateStart + '</div></td></tr></tbody></table>');
};

///////////////////////////////////////////////////////////////////////////
//displaying the data on the map                                         //
///////////////////////////////////////////////////////////////////////////

dotlayer = L.geoJson(circles, {
    style: function(feature) {
        return {color: feature.properties.Colour};
    },
    pointToLayer: function(feature, latlng) {
        return new L.CircleMarker(latlng, markerDefault);
    },
    onEachFeature: onEachDot
}).addTo(map);

// init a map scale
L.control.scale().addTo(map);

在不修改.geojson文件

的情况下找到解决方案仍然很好

使用不同颜色的鼠标悬停时，小叶突出显示标记

1 个答案: