8000 Accumulate mean operation broken · Issue #328 · felt/tippecanoe · GitHub
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Accumulate mean operation broken #328

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pierreleripoll opened this issue Mar 17, 2025 · 6 comments
Open

Accumulate mean operation broken #328

pierreleripoll opened this issue Mar 17, 2025 · 6 comments

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@pierreleripoll
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Hi ! First of all thank's a lot for you work. I use tippecanoe everyday at work and I love it.

I just got a bug with tippecanoe v2.75.1:

 tippecanoe --force -zg \
        --coalesce-densest-as-needed \
        --accumulate-attribute=var1:mean \
        --accumulate-attribute=var2:mean \
        --accumulate-attribute=var3:mean \
        -o example-data.pmtiles example-data.json

gave me this error :

33927 features, 4109890 bytes of geometry and attributes, 2828005 bytes of string pool, 0 bytes of vertices, 0 bytes of nodes
Choosing a maxzoom of -z8 for features typically 685 feet (209 meters) apart, and at least 261 feet (80 meters) apart
Choosing a maxzoom of -z9 for resolution of about 804 feet (245 meters) within features
tile 6/33/22 size is 1076687 (probably really 1076687) with detail 12, >500000    
Going to try keeping the sparsest 37.15% of the features to make it fit
can't happen: operation that isn't used by --accumulate-numeric-attributes
make: *** [Makefile:3: generate-data] Error 106

When changing to sum accumulate function it works again.
@e-n-f
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e-n-f commented Mar 19, 2025

Thanks for the report! Would you be willing to share the example-data.json that you are seeing the error with?

@pierreleripoll
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pierreleripoll commented Mar 19, 2025 •
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Unfortunately it's private data I'm not allowed to share, but I will try to replicate the bug with sharable data

@e-n-f
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e-n-f commented Mar 19, 2025

Thank you!

@e-n-f
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e-n-f commented Mar 19, 2025

I was able to reproduce it. Looks like it happens when only some of the features have the attribute that is being accumulated.

@e-n-f
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e-n-f commented Mar 19, 2025

Specifically,

tippecanoe -z1 -f -o foo.mbtiles --accumulate-attribute=POP2000:mean ./tests/ne_110m_populated_places_nulls/in.json

fails.

@e-n-f
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e-n-f commented Mar 19, 2025

Will be fixed in #329

@e-n-f e-n-f mentioned this issue Mar 19, 2025
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