Folium 自定义图例与全屏插件的兼容性问题

问题描述 投票：0回答：1

我正在使用 

How can I add a legend to a folium map?
中的代码创建自定义可拖动图例。

添加 

Fullscreen folium plugin
后，在全屏模式下，可拖动图例消失。

有没有办法使用 folium 全屏插件以全屏模式显示图例？

可复制代码：

from branca.element import Template, MacroElement
import folium
from folium import plugins


m = folium.Map(location=(30, 20), zoom_start=4)




template = """
{% macro html(this, kwargs) %}

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>jQuery UI Draggable - Default functionality</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">

  <script src="https://code.jquery.com/jquery-1.12.4.js"></script>
  <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>

  <script>
  $( function() {
    $( "#maplegend" ).draggable({
                    start: function (event, ui) {
                        $(this).css({
                            right: "auto",
                            top: "auto",
                            bottom: "auto"
                        });
                    }
                });
});

  </script>
</head>
<body>


<div id='maplegend' class='maplegend'
    style='position: absolute; z-index:9999; border:2px solid grey; background-color:rgba(255, 255, 255, 0.8);
     border-radius:6px; padding: 10px; font-size:14px; right: 20px; top: 20px;'>

<div class='legend-title'>Population</div>
<div class='legend-scale'>
  <div class='legend-labels' style="display: flex; justify-content: space-between;">
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#fee5d9; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(0-50)</span>
    </div>
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#fcbba1; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(51-100)</span>
    </div>
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#fc9272; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(101-250)</span>
    </div>
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#fb6a4a; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(251-500)</span>
    </div>
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#ef3b2c; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(501-750)</span>
    </div>
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#cb181d; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(751-1000)</span>
    </div>
    <div style="display: flex; flex-direction: column; align-items: center;">
        <span style='background:#99000d; opacity:0.8; width: 50px; height: 20px; display: inline-block;'></span>
        <span>(> 1001)</span>
    </div>
  </div>
</div>
</div>

</body>
</html>

<style type='text/css'>
  .maplegend .legend-title {
    text-align: left;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 90%;
    }
  .maplegend .legend-scale ul {
    margin: 0;
    margin-bottom: 5px;
    padding: 0;
    float: left;
    list-style: none;
    }
  .maplegend .legend-scale ul li {
    font-size: 80%;
    list-style: none;
    margin-left: 0;
    line-height: 18px;
    margin-bottom: 2px;
    }
  .maplegend ul.legend-labels li span {
    display: block;
    float: left;
    height: 16px;
    width: 30px;
    margin-right: 5px;
    margin-left: 0;
    border: 1px solid #999;
    }
  .maplegend .legend-source {
    font-size: 80%;
    color: #777;
    clear: both;
    }
  .maplegend a {
    color: #777;
    }
</style>
{% endmacro %}"""



macro = MacroElement()
macro._template = Template(template)

m.get_root().add_child(macro)

# Add the full screen button.                                               
plugins.Fullscreen(                                                         
        position                = "bottomleft",                                   
        title                   = "Open full-screen map",                       
        title_cancel            = "Close full-screen map",                      
        force_separate_button   = True,                                         
    ).add_to(m) 

m
python html css folium folium-plugins
1个回答
0
投票

我也遇到了这个问题，并深入研究了全屏插件的

fullscreen.py
源代码。

所以，这个插件在这里使用默认的CSS：

default_css = [
    (
        "Control.FullScreen.css",
        "https://cdn.jsdelivr.net/npm/[email protected]/Control.FullScreen.css",
    )
]


.leaflet-container:-webkit-full-screen { width: 100% !important; height: 100% !important; z-index: 99999; }

在链接中，我们可以看到

z-index
是99999。因此，将此div标签中的z-index调整为更高的数字（例如100000）。

<div id='maplegend' class='maplegend'
style='position: absolute; z-index:9999; border:2px solid grey; background-color:rgba(255, 255, 255, 0.8);
 border-radius:6px; padding: 10px; font-size:14px; right: 20px; top: 20px;'>

这个对我有用。

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