Leaflet.CanvasDataGrid

CanvasDataGrid is a Leaflet plugin allowing to create one or several layers which render data on canvas tiles. It maintains an internal index on the data rendered by each canvas tile, based on RBush.

Demo

Requirements

• Leaflet v1.0.0-beta2
• Development libraries needed (under Ubuntu): cairo, libpango1.0-dev, libjpeg-dev, libgif-dev

Installation

npm install

Examples

API

DataLayer

DataLayer is a Leaflet layer that renders data on canvas tiles.

• Instances of IDataProvider are used to load data associated with individual tiles.
• DataRenderer is used to render the loaded objects.

DataRenderer

DataRenderer renders individual GeoJSON features on a canvas.

CanvasTools

CanvasTools consists of a set of methods used to draw images, lines and polygons on canvas.

• TODO: replace "clipLine", "clipLines", "clipPolygon" by "turf.intersect"
• TODO: replace "simplify" method by "turf.simplify"

CanvasContext

CanvasContext is a generic class allowing to associate data with images and geometries drawn on canvas.

TODO: data indexing code should be externalized to a GridIndex class

License

Leaflet.CanvasDataGrid is licensed under the MIT License.