Leaflet中使用leaflet.browser.print插件实现导出图片

我会带着你远行 2023-09-30 12:50 5阅读 0赞

## 场景 ##

Leaflet中使用leaflet.easyPring插件实现打印效果：

[https://blog.csdn.net/BADAO\_LIUMANG\_QIZHI/article/details/122452831][https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_122452831]

在上面实现打印的效果时使用的是easyPrint插件实现的效果。

除此之外还可以使用browser.print插件实现。

插件地址：

[https://github.com/Igor-Vladyka/leaflet.browser.print][https_github.com_Igor-Vladyka_leaflet.browser.print]

注：

博客：  
[https://blog.csdn.net/badao\_liumang\_qizhi][https_blog.csdn.net_badao_liumang_qizhi]  
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## 实现 ##

1、示例代码地址

[https://igor-vladyka.github.io/leaflet.browser.print/examples/savePNG.html][https_igor-vladyka.github.io_leaflet.browser.print_examples_savePNG.html]

访问并查看网页源码，下载并引入所需依赖

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA6Zy46YGT5rWB5rCT5rCU6LSo_size_20_color_FFFFFF_t_70_g_se_x_16][]

2、加载导出图片控件

3、完整示例代码

<!doctype html>
    <html lang="en">
    
    <head>
        <meta charset="UTF-8">
        <title>leaflet-browser-print实现导出照片</title>
        <link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css" />
        <style>
            html,
            body,
            #map {
                padding: 0;
                margin: 0;
                width: 100%;
                height: 100%;
                overflow: hidden;
            }
        </style>
    </head>
    
    <body >
        <div id="map"></div>
        <script type="text/javascript" src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"></script>
        <script type="text/javascript" src="./js/leaflet.browser.print.js"></script>
        <script type="text/javascript" src="./js/dom-to-image.js"></script>
        <script type="text/javascript">
    
            var map = L.map('map').setView([36.09, 120.35], 13);
            var tiles =
                L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
                    attribution: ''
                });
            tiles.addTo(map);
    
            L.marker([36.09, 120.35]).addTo(map)
                .bindPopup("<b>Hello world!</b><br />I am a popup.").openPopup();
    
    
            var saveAsImage = function () {
        return domtoimage.toPng(document.body)
          .then(function (dataUrl) {
           var link = document.createElement('a');
           link.download = map.printControl.options.documentTitle || "exportedMap" + '.png';
           link.href = dataUrl;
           link.click();
          });
       }
            //加载导出图片控件
            L.control.browserPrint({
                documentTitle: "printImage",
                printModes: [
                    L.BrowserPrint.Mode.Landscape(),
                ],
                printFunction: saveAsImage
            }).addTo(map);
    
    
        </script>
    </body>
    
    </html>

4、效果

![08051de2ebd04ec8a2698c98b034e599.gif][]

[https_blog.csdn.net_BADAO_LIUMANG_QIZHI_article_details_122452831]: https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/122452831
[https_github.com_Igor-Vladyka_leaflet.browser.print]: https://github.com/Igor-Vladyka/leaflet.browser.print
[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi
[https_igor-vladyka.github.io_leaflet.browser.print_examples_savePNG.html]: https://igor-vladyka.github.io/leaflet.browser.print/examples/savePNG.html
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBA6Zy46YGT5rWB5rCT5rCU6LSo_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/7d2f6e099b1c45a58066be5e351fbaa3.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBA6Zy46YGT5rWB5rCT5rCU6LSo,size_20,color_FFFFFF,t_70,g_se,x_16
[08051de2ebd04ec8a2698c98b034e599.gif]: https://img-blog.csdnimg.cn/08051de2ebd04ec8a2698c98b034e599.gif