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This project is port of google-map webcomponent based on LitElement library

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lit-google-map

This project is port of google-map webcomponent based on Lit v2 library.

UPDATE v1.0.0 (23/02/2022)

  • Project ported to Lit v2
  • Added shapes: Circle and Polygon
  • Bug fixes

Table of contents

How to use

Map element attributes

Marker element attributes

Circle shape element attributes

Polygon shape element attributes

How to build

License

How to use

Include lit-google-map bundle in HTML file:

<script src="lit-google-map.bundle.js"></script>

or its minified version:

<script src="lit-google-map.bundle.min.js"></script>

Use component in any place you want (remember to fill in Google Maps API key):

<lit-google-map api-key="YOUR_GOOGLE_MAPS_API_KEY">    
</lit-google-map>

You can also include any number of map markers:

<lit-google-map api-key="YOUR_GOOGLE_MAPS_API_KEY">
    <lit-google-map-marker slot="markers" latitude="49.4404582" longitude="20.2700361">
    </lit-google-map-marker>  
    <lit-google-map-marker slot="markers" latitude="50.797444" longitude="20.4600623">
    </lit-google-map-marker>
</lit-google-map>

or/and shapes:

<lit-google-map api-key="YOUR_GOOGLE_MAPS_API_KEY">  
    <lit-google-map-circle slot="shapes" center-latitude="49.4404582" center-longitude="20.2700361">
    </lit-google-map-circle>
</lit-google-map>

Map element attributes

  • 'api-key' - Google map API key
  • 'language' - Google map language (optional)
  • 'map-id' - Google map mapId (optional)
  • 'version' - Google map js script version to load (default: '3.48')
  • 'styles' - Map styles in json format (optional)
  • 'zoom' - Zoom level (default: '8')
  • 'fit-to-markers' - Fit map area to display all markers
  • 'map-type' - Map type to display: 'roadmap', 'satellite', 'hybrid', 'terrain'
  • 'center-latitude'- Latitude of map initial center point
  • 'center-longitude' - Longitude of map initial center point

Example:

<lit-google-map api-key="SOME_API_KEY" zoom="6" map-type="satellite" center-latitude="51.8436554" center-longitude="19.5070867">    
</lit-google-map>

Marker element attributes

  • 'latitude' - Marker latitude position
  • 'longitude' - Marker longitude position
  • 'label' - Marker label
  • 'z-index' - Marker z index
  • 'icon' - Marker icon image url

Example:

<lit-google-map-marker slot="markers" latitude="49.4404582" longitude="20.2700361">
</lit-google-map-marker>

Markers can also have associated InfoWindow with html content:

<lit-google-map-marker slot="markers" latitude="50.797444" longitude="20.4600623">
    <p>Some description</p>
    <img src="some_image.jpg" alt="some image">
</lit-google-map-marker>

Circle shape element attributes

  • 'center-latitude' - Circle center latitude position
  • 'center-longitude' - Circle center longitude position
  • 'radius' - Circle radius (default: 100000)
  • 'fill-color' - Circle fill color
  • 'fill-opacity' - Circle fill opacity
  • 'stroke-color' - Circle stroke color
  • 'stroke-opacity' - Circle stroke opacity
  • 'stroke-weight' - Circle stroke weight

Example:

<lit-google-map-circle slot="shapes" center-latitude="53.176389" center-longitude="22.073056" radius="50000"  fill-color="#7FB3D5" fill-opacity="0.35" stroke-color="#2874A6" stroke-opacity="0.8" stroke-weight="5">
</lit-google-map-circle>

Polygon shape element attributes

  • 'paths' - Polygon paths points in form of json array
  • 'fill-color' - Polygon fill color
  • 'fill-opacity' - Polygon fill opacity
  • 'stroke-color' - Polygon stroke color
  • 'stroke-opacity' - Polygon stroke opacity
  • 'stroke-weight' - Polygon stroke weight

Example:

<lit-google-map-polygon slot="shapes" paths='[{"lat": 53.7332, "lng": 15.5180}, {"lat": 54.0444, "lng": 18.1379}, {"lat": 53.2028, "lng": 16.9292}, {"lat": 53.7332, "lng": 15.5180}]' fill-color="#7FB3D5" fill-opacity="0.35" stroke-color="#2874A6" stroke-opacity="0.8" stroke-weight="5">
</lit-google-map-polygon>   

How to build

Before build install all required packages:

npm install

Bare build:

npm run build

Build with bundle step:

npm run bundle

License

MIT

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This project is port of google-map webcomponent based on LitElement library

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