A LeafletJS plugin for displaying geoTIFF raster data. Data can drawn as colored rasters or directon arrows. The layer can be clipped using a polygon.

DEMO

    <script src="https://unpkg.com/leaflet@1.3.1/dist/leaflet.js"></script>
    <script src="https://unpkg.com/geotiff@0.4.1/dist/main.js"></script>
    <script src="https://unpkg.com/plotty@0.2.0/src/plotty.js"></script>
    <script src="leaflet-geotiff.js"></script>
    <!-- Load any renderer you need -->
    <script src="leaflet-geotiff-plotty.js"></script>
    <script src="leaflet-geotiff-vector.js"></script>

// Create map
var layer = L.leafletGeotiff(url, options).addTo(map);

Parameters:

• url - GeoTIFF file URL. Currently only EPSG:4326 files are supported.
• options:
  • bounds - (optional) An array specifying the corners of the data, e.g. [[40.712216, -74.22655], [40.773941, -74.12544]]. If omitted the image bounds will be read from the geoTIFF file.
  • band - (optional, default = 0) geoTIFF band to read.
  • image - (optional, default = 0) geoTIFF image to read.
  • clip - (optional, default = undefined) Clipping polygon, provided as an array of [lat,lon] coordinates. Note that this is the Leaflet [lat,lon] convention, not geoJSON [lon,lat].
  • renderer - Renderer to use (see below).

Raster data rendered using Plotty: L.LeafletGeotiff.plotty(options) Options:

• displayMin - (optional, default = 0) Minimum values to plot.
• displayMax - (optional, default = 1) Maximum values to plot.
• clampLow, clampHigh - (optional, default = true) If true values outside displayMin to displayMax will be rendered as if they were valid values.
• colorScale - (optional, default = "viridis"). Plotty color scale used to render the image.

New color scales can be created using plotty's addColorScale method.

Vector data rendered as arrows: L.LeafletGeotiff.vectorArrows(options) Options:

• arrowSize - (optional, default = 20) Size in pixels of direction arrows for vector data.

1. Data values can be extracted using the getValueAtLatLng(lat,lng) method.
2. Custom renderer can be implemented by extending L.LeafletGeotiffRenderer.

• Leaflet >= 0.7.7
• geotiff.js
• plotty (optional)