Leaflet（R）addPopups：坐标/属性

Question

我对处理空间数据和传单一般都很陌生。我在为地图创建弹出窗口时遇到了困难。基本上我在弹出窗口中想要的是我的多边形的坐标和一个属性（类的类型）。以下是我的geoJSON文件的测试示例：

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {"class": "blah"},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -81.7987060546875,
              32.74570253945518
            ],
            [
              -81.6229248046875,
              32.16631295696736
            ],
            [
              -80.958251953125,
              32.4263401615464
            ],
            [
              -81.2713623046875,
              32.791892438123696
            ],
            [
              -81.7437744140625,
              32.97180377635759
            ],
            [
              -81.7987060546875,
              32.74570253945518
            ]
          ]
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {"class": "blah2"},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -82.056884765625,
              33.55512901742288
            ],
            [
              -81.4471435546875,
              33.247875947924385
            ],
            [
              -81.40869140625,
              33.80653802509606
            ],
            [
              -82.078857421875,
              33.88865750124075
            ],
            [
              -82.40295410156249,
              33.58716733904656
            ],
            [
              -82.056884765625,
              33.55512901742288
            ]
          ]
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {"class": "blahh3"},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -83.485107421875,
              32.930318199070534
            ],
            [
              -83.07861328125,
              31.863562548378965
            ],
            [
              -82.21618652343749,
              32.11049589629439
            ],
            [
              -82.97973632812499,
              33.22030778968541
            ],
            [
              -83.726806640625,
              33.211116472416855
            ],
            [
              -83.485107421875,
              32.930318199070534
            ]
          ]
        ]
      }
    }
  ]
}

这是我到目前为止创建我的地图的代码，但我很难/甚至不知道从哪里开始创建包含我的坐标和属性的弹出窗口：

blahTest <- geojson_read("/file/path/...", what = "sp")
fpal <- colorFactor("viridis", blahTest$class)
leaflet(blahTest) %>%
  addTiles() %>%
  addPolygons(stroke = FALSE, smoothFactor = 0.3, fillOpacity = 1,
              color = ~fpal(class)) %>%
  addLegend(colors = ~fpal, opacity = 1.0, labels = ~fpal) %>%
  addPopups()

提前致谢！

Answer 1

概述

使用@ patL的建议，我使用了leaflet::addPolygon()函数中的df['count'] = df.groupby(['col1', 'col2'])['col3'].transform('count') 参数来添加定义popup中每个多边形的class和coordinates标签

我将您的示例数据保存为.gejson文件，并使用sf::read_sf()将其导入，并在阅读htmlTable后使用How to add an html table to leaflet popup包在弹出窗口中生成HTML表格。

blahTest