Change thickness of lines proportional to flow quantities

[osper66]

Any idea?

Thanks for advance.

[jwasilgeo]

@osper66 is this what you are looking for? We have a demo that has different line widths (and colors) based on data attributes.

https://jwasilgeo.github.io/Leaflet.Canvas-Flowmap-Layer/docs/class-breaks-symbology/

https://github.com/jwasilgeo/Leaflet.Canvas-Flowmap-Layer/blob/master/docs/class-breaks-symbology/index.html#L94-L137

[osper66]

If CanvasFlowmapLayer.js's destinationFeature in line:186's property has flow value(population, migration etc.) , change g this._animateCanvasLineSymbol(ctx, symbol, screenOriginPoint, screenDestinationPoint) in line:642 to this._animateCanvasLineSymbol(ctx, symbol, screenOriginPoint, screenDestinationPoint, lineWidths[feature.properties.population) where lineWidths are given by some scaling rule according to population value and finally change _animateCanvasLineSymbol: function(ctx, symbolObject, screenOriginPoint, screenDestinationPoint, lineWidth) in line:693 and ctx.lineWidth = lineWidth in line:695.