# geo-json

Examples of GeoJSON as Promise. the split between json and option is form leaflet implementation. Multiple geo implementations are supported.

## Single Object

```javascript
geo: [
  {
    json: function () {
      return Promise.resolve({
        'type': 'Feature',
        'geometry': {
          'type': 'Polygon',
          'coordinates': [
            [
              [
                12.04925537109375,
                49.036517514836994
              ],
              [
                12.033462524414062,
                49.021660359632115
              ],
              [
                12.058181762695312,
                48.99553703238219
              ],
              [
                12.11311340332031,
                49.001843917978526
              ],
              [
                12.122726440429686,
                49.03381654386847
              ],
              [
                12.04925537109375,
                49.036517514836994
              ]
            ]
          ]
        }
      });
    },
    option: {
      style: {
        color: '#e23535',
        weight: 5,
        opacity: 0.4,
        fillColor: '#6de922',
        fillOpacity: 0.1
      }
    }
  }
]
```

## Multi object

```javascript
geo: [
  {
    json: function () {
      return Promise.all([
          {
              'type': 'Feature',
              'geometry': {
                'type': 'Polygon',
                'coordinates': [
                  [
                    [
                      12.04925537109375,
                      49.036517514836994
                    ],
                    [
                      12.033462524414062,
                      49.021660359632115
                    ],
                    [
                      12.058181762695312,
                      48.99553703238219
                    ],
                    [
                      12.11311340332031,
                      49.001843917978526
                    ],
                    [
                      12.122726440429686,
                      49.03381654386847
                    ],
                    [
                      12.04925537109375,
                      49.036517514836994
                    ]
                  ]
                ]
              }
            }, {
              'type': 'Feature',
              'geometry': {
                'type': 'Polygon',
                'coordinates': [
                  [
                    [
                      11.04925537109375,
                      49.036517514836994
                    ],
                    [
                      12.033462524414062,
                      49.021660359632115
                    ],
                    [
                      12.058181762695312,
                      48.99553703238219
                    ],
                    [
                      12.11311340332031,
                      49.001843917978526
                    ],
                    [
                      12.122726440429686,
                      50.03381654386847
                    ],
                    [
                      12.04925537109375,
                      49.036517514836994
                    ]
                  ]
                ]
              }
            }
        ]);
    },
    option: {
      style: {
        color: '#e23535',
        weight: 5,
        opacity: 0.4,
        fillColor: '#6de922',
        fillOpacity: 0.1
      }
    }
  }
]
```

## Dynamic/Ajax objects

```javascript
geo: [
      {
        json: function () {
          var linkScale = require('d3-interpolate').interpolateHslLong('darkblue', 'darkred');

          return require('helper').getJSON('https://opendata.ffggrz.de/').then(function (result) {
            result.features.forEach(function (item) {
              var temp = ((item.properties.temperature ? item.properties.temperature.toString() : 0) + 20) / 55;
              item.color = linkScale(temp);
            });

            return result.features ? result.features : false;
          }, function () {
            return false;
          });
        },

        option: {
          pointToLayer: function (feature, latlng) {
            return L.circleMarker(latlng, {
              radius: 8,
              fillColor: feature.color,
              color: '#000',
              weight: 1,
              opacity: 1,
              fillOpacity: 0.8
            }).bindTooltip(feature.properties.temperature ? 'Temperatur: ' + feature.properties.temperature.toString() + 'C' : '');
          },
          pane: 'markerPane'
        }
      }
    ]
```

<https://github.com/d3/d3-interpolate#color-spaces> - Info about colors


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://rubo77.gitbook.io/meshviewer-documentation/examples/geo-json.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.