This PR adds a --retain-points-multiplier option to tippecanoe to preserve additional point features beyond what is normally retained at the low zoom levels, and a corresponding addition to tippecanoe-overzoom to remove additional points to return to the normal point density. This would just be a waste of time and space, except that there is also a new -j filter option to tippecanoe-overzoom to select the best feature from each point cluster, so that high-value points whose value is only known after tiling can be made more likely to appear in the low zooms.
This PR adds a
--retain-points-multiplieroption totippecanoeto preserve additional point features beyond what is normally retained at the low zoom levels, and a corresponding addition totippecanoe-overzoomto remove additional points to return to the normal point density. This would just be a waste of time and space, except that there is also a new-jfilter option totippecanoe-overzoomto select the best feature from each point cluster, so that high-value points whose value is only known after tiling can be made more likely to appear in the low zooms.