{{< leaflet-map resizable=false >}}
	{{< leaflet-layer id="ch.swisstopo.pixelkarte-farbe" selectorPosition="bottomleft" >}}
	{{< leaflet-layer id="ch.swisstopo.swissimage" >}}
	{{< leaflet-layer id="ch.swisstopo.swisstlm3d-wanderwege" >}}

	{{< leaflet-scale position="bottomright" >}}

	{{< leaflet-track path="track.gpx" color="DarkRed" >}}

	{{< leaflet-elevation-profile expanded=true resizable=true width=300 height=150 >}}
{{< /leaflet-map >}}

And below is how this might render:

{width=792px}

Documentation

Getting started

An example website is available that illustrates how to use hugo-mod-leaflet in your own Hugo website. In a nutshell:

Add a dependency to gitlab.com/mrubli/hugo-mod-leaflet.git in your configuration (typically hugo.toml or hugo.yaml).
Find out how the theme of your choice lets you add code to the site's <head> section. A good candidate to look is layouts/_default/baseof.html or other files in the same directory. (The example website uses the layouts/partials/site-scripts.html customization point of the Ananke theme.)
Invoke the leaflet-loader shortcode from the <head> section. Typically, you'd do this with a snippet like this one:
```
{{ if .HasShortcode "leaflet-map" }}
	{{ partial "leaflet-loader" . }}
{{ end }}
```
Now you can use the shortcodes provided by hugo-mod-leaflet in your content files.

Shortcodes

The current shortcode documentation is contained at the top of leaflet-map.html but is reproduced here for convenience:

Syntax summary

{{< leaflet-map centerLat=FLOAT centerLon=FLOAT zoom=INT width="STRING" height="STRING" resizable=BOOL maximizable=BOOL freezable=BOOL freezeOptions="STRING" >}}
	{{< leaflet-layer id="STRING" apiKey="STRING" >}}
	{{< leaflet-marker lat=FLOAT lon=FLOAT >}}
	{{< leaflet-track path="URL" title="STRING" downloadable=BOOL >}}
	{{< leaflet-scale >}}
	{{< leaflet-elevation-profile expanded=BOOL resizable=BOOL width=INT height=INT minWidth=INT minHeight=INT maxWidth=INT maxHeight=INT >}}
{{< /leaflet-map >}}

Map options

centerLat/centerLon:
	Center point coordinates of the map as decimal values. Optional iif tracks or markers are given.
zoom:
	Zoom level of the map. Optional iif tracks or markers are given.
width:
	Width of the map, including CSS units (e.g. "50%", "300px").
	Optional, defaults to "auto".
height:
	Height of the map, including CSS units (e.g. "50%", "300px").
	Optional, defaults to "50vh".
resizable:
	Boolean value indicating whether the map should be drag & drop resizable.
	Optional, defaults to true.
maximizable:
	Boolean value indicating whether the maximize button should be displayed.
	Optional, defaults to true.
freezable:
	Boolean value indicating whether the map should be frozen on page load to avoid scroll capture.
	Optional, defaults to true.
freezeOptions:
	A string containing a JSON object (without its braces) that contains options for Leaflet.Freezy.
	See https://gitlab.com/mrubli/leaflet-freezy#options for details.
	Optional, defaults to: "freezeButtonInnerHtml: 1500"
	Example: freezeOptions="hoverToThawDuration: 500, freezeButtonInnerHtml: '🥶'"
	Example: freezeOptions=" "   (to avoid the hugo-mod-leaflet default and use Leaflet.Freezy's defaults instead)

Layer options

id:
	Name of the layer. Supported base layers:
	- org.openstreetmap.standard:
		https://www.openstreetmap.org/
	- com.thunderforest.cycle: ①
		https://www.thunderforest.com/maps/opencyclemap/
	- com.thunderforest.outdoors: ①
		https://www.thunderforest.com/maps/outdoors/
	- com.thunderforest.landscape: ①
		https://www.thunderforest.com/maps/landscape/
	- ch.swisstopo.pixelkarte-farbe: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.pixelkarte-farbe&lang=en
	- ch.swisstopo.swissimage: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.swissimage&lang=en
	Supported overlays:
	- ch.swisstopo.swisstlm3d-wanderwege: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.pixelkarte-farbe&lang=en&layers=ch.swisstopo.swisstlm3d-wanderwege&layers_opacity=0.8
	- ch.astra.mountainbikeland: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.pixelkarte-farbe&lang=en&layers=ch.astra.mountainbikeland&layers_opacity=0.6
	- ch.astra.veloland: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.pixelkarte-farbe&lang=en&layers=ch.astra.veloland&layers_opacity=0.6
	- ch.swisstopo.schneeschuhwandern: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.pixelkarte-farbe&lang=en&layers=ch.swisstopo.schneeschuhwandern
	- ch.swisstopo-karto.schneeschuhrouten: ②
		https://map.geo.admin.ch/?topic=swisstopo&bgLayer=ch.swisstopo.pixelkarte-farbe&lang=en&layers=ch.swisstopo-karto.schneeschuhrouten&layers_opacity=0.8
	Notes:
		① API key required.
		② Uses EPSG-2056 (Swiss CH1903+/LV95) projection. Cannot be combined with EPSG3857 (WGS 84) map layers.
apiKey:
	API key for tile access.
selectorPosition:
	Position of the layer selector button. One of: "topleft", "topright", "bottomleft", "bottomright"
	Optional, defaults to "bottomleft". If specified for more than one layer, the last one wins.

Marker options

lat/lon:
	Coordinates of the marker as decimal values.

Track options

path:
	Absolute or relative path of the .gpx file to render as a track.
title:
	Name of the track, used e.g. to render the 'Download GPX' button when multiple tracks are present.
color:
	Color to use for rendering the track.
	Optional, defaults to DeepPink.
opacity:
	Opacity to use for rendering the track.
	Optional, defaults to 0.7.
downloadable:
	Boolean value indicating whether there should be a 'Download GPX' button for this track.
	Optional, defaults to true.

Scale options

position:
	Position of the scale. One of: "topleft", "topright", "bottomleft", "bottomright"
	Optional, defaults to "bottomright".

Elevation profile options

resizable:
	Boolean value indicating whether the elevation profile box should be drag & drop resizable.
	Optional, defaults to false.
expanded:
	Boolean value indicating whether the elevation profile should be expanded by default.
	Optional, defaults to true.
width:
	Width of the elevation profile.
	Optional, defaults to 360.
height:
	Height of the elevation profile.
	Optional, defaults to 180.
minWidth:
	Minimum width of the elevation profile if resizable.
	Optional.
minHeight:
	Minimum height of the elevation profile if resizable.
	Optional.
maxWidth:
	Maximum width of the elevation profile if resizable.
	Optional.
maxHeight:
	Maximum height of the elevation profile if resizable.
	Optional.

Note: Elevation profiles are only supported if exactly one track is present.

Configuration options

There are a number of module-specific options you can add to your site configuration under the params.modules.leaflet key. For example, in a YAML config file:

params:
  modules:
    leaflet:
      com_thunderforest_outdoors:
        apiKey: YOUR_API_KEY_GOES_HERE
      com_thunderforest_cycle:
        apiKey: YOUR_API_KEY_GOES_HERE
      com_thunderforest_landscape:
        apiKey: YOUR_API_KEY_GOES_HERE

Key	Description
`<layer_id>.apiKey`	API key for the layer with the given ID. Note that the layer ID is the same as in the `leaflet-layer` shortcode options but with dots replaced with underscores. If the API is specified in the configuration and the shortcode options, the latter takes precedence.

README.md

hugo-mod-leaflet: Leaflet integration for Hugo

Table of contents

Example