Make hexbin locations deterministic #79
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Something that bothered my for quite a while is the fact that hexbin locations move around every time you zoom in or out. It turns out that the locations where calculated relative to the Pixel Origin, which itself is also a relative value compared to Leaflet map's CRS. As a result, the hexbins would never look the same.
This PR modifies the hexbin locations to be calculated relative to the map CRS instead (
projectinstead oflatLngToLayerPoint) and subsequently translate the resulting hexbin locations to the Pixel Origin reference system by subtracting the PO value from the hexbin locations.As a result, the hexbin locations remain constant across zoomlevels and will look the same for everyone everytime. (Which in turn also makes it easier to fix the hexbin radius as discussed in #14, because the locations now always stay the same.)
@reblace it would be great to hear from you :)