Heatmap layer changes on zoom and scroll

[meliborn]

Here is an example of what I'm talking about https://monosnap.com/file/RlCBVesSFsBHEaJP7KaHzzS4aNeavp#embed

I'm expecting to see constant layer without any changes even on zoom or scroll. Am I missing something?

[pa7]

it looks like you're having useLocalExtremas set to true. in that case it will look for the highest visible point and use that as maximum for the heatmap, disable it and it should behave properly

[tomchavakis]

You can extend the boundingbox using the pad function. http://leafletjs.com/reference-1.3.0.html#latlngbounds At the leaflet-heatmap.js https://github.com/pa7/heatmap.js/blob/develop/plugins/leaflet-heatmap/leaflet-heatmap.js

ln: 101 Add the following: bounds = bounds.pad(0.1);

Using this line you are extending the current bounds by 10% and this will fix the rendering issue of zooming and dragging.