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More id dropping at low zooms (landuse) #1033

nvkelso opened this Issue Sep 9, 2016 · 1 comment


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nvkelso commented Sep 9, 2016

Following up from work in #583 which gave us significant feature count reduction and file size savings...

QA for that work revealed that at low zooms we still have individual tile features for national_park features but I expected to only see merged "generic" polygons within the kind. This issue tracks also merging those features.

Here's a view in the USA (example tile 4/2/5):

the different colors show individual features with unique IDs

screen shot 2016-09-08 at 23 39 35

I think this is because even though the name is removed, the unique ID is still present, which then prevents the merge?

Here's Point Reyes in 9/81/197:

the different colors show individual features with unique IDs
grey colors are for landuse polygons that have been merged

screen shot 2016-09-08 at 23 40 54

screen shot 2016-09-08 at 23 40 22

@nvkelso nvkelso added this to the v1.1.0 milestone Sep 9, 2016


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nvkelso Oct 5, 2016


Related: #1002


nvkelso commented Oct 5, 2016

Related: #1002

@nvkelso nvkelso modified the milestones: v1.1.0, v1.2.0 Apr 4, 2017

@nvkelso nvkelso changed the title from Additional landuse merging by removing id at low and mid zooms to More id dropping at low zooms (landuse) May 4, 2017

@nvkelso nvkelso added the loe low label Jul 27, 2017

@nvkelso nvkelso modified the milestones: v1.5.0, v1.6.0 Nov 13, 2017

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