jayli3n / leaflet.textpath

Show text along Polyline with Leaflet

Leaflet.TextPath

Shows a text along a Polyline.

Check out the demo !

Leaflet versions

The version on the gh-pages branch targets Leaflet 1.3.1.

Usage

For example, show path orientation on mouse over :

    var layer = L.polyLine(...);

    layer.on('mouseover', function () {
        this.setText('  ►  ', {repeat: true, attributes: {fill: 'red'}});
    });

    layer.on('mouseout', function () {
        this.setText(null);
    });

With a GeoJSON containing lines, it becomes:

    L.geoJson(data, {
        onEachFeature: function (feature, layer) {
            layer.setText(feature.properties.label);
        }
    }).addTo(map);

Options

• repeat Specifies if the text should be repeated along the polyline (Default: false)

• center Centers the text according to the polyline's bounding box (Default: false)

• below Show text below the path (Default: false)

• offset Set an offset to position text relative to the polyline (Default: 0)

• orientation Rotate text. (Default: 0)

  • {orientation: angle} - rotate to a specified angle (e.g. {orientation: 15})
  • {orientation: flip} - filps the text 180deg correction for upside down text placement on west -> east lines
  • {orientation: perpendicular} - places text at right angles to the line.

• attributes Object containing the attributes applied to the text tag. Check valid attributes here (Default: {})

Screenshot

Credits

The main idea comes from Tom Mac Wright's Getting serious about SVG

Changelog

development

• Nothing changed yet.

1.1.0

• Add the orientation option (#27, thanks @kirkau)

1.0.2

• Allow HTTP and HTTPS to access the demo (#39, thanks @sonny89 and @leplatrem)

1.0.1

• Fix text centering for vertical lines (#33, #34, #38, thanks @msgoloborodov)

1.0.0

Breaking changes

• Text is now shown on top by default. Set option below to true to put the text below the layer.

0.2.2

• Fix bug when removing layer whose text was removed (fixes #18) (thanks Victor Gomes)
• Fix path width when using options.center (fixes #17) (thanks Brent Miller).

0.2.1

• Fix layer order (fixes #5) (thanks Albin Larsson)

0.2.0

• Stay on top after bringToFront
• Clean-up and fix onAdd and onRemove
• Fire mouse events from underlying text layer (thanks Lewis Christie)

0.1.0

• Initial working version

Authors

Many thanks to all contributors !