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Deduplicate in tippecanoe-overzoom even when the duplicate is clipped away (#353)

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* Deduplicate by ID even when the duplicate is clipped away

* Test that deduplication works across tile boundaries

* Update version and changelog
This commit is contained in:
Erica Fischer
2025-07-24 13:21:10 -07:00
committed by GitHub
parent 6dd49be6c9
commit 68ab8dcc22
8 changed files with 45 additions and 26 deletions
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tests/pbf/1.json
+3 -3
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@@ -1,3 +1,3 @@
{"type":"Feature","properties":{"what":"no id"},"geometry":{"type":"Point","coordinates":[0,0]}}
{"type":"Feature","id":12345,"properties":{"what":"will survive"},"geometry":{"type":"Point","coordinates":[0,0]}}
{"type":"Feature","id":12346,"properties":{"what":"will win over the duplicate"},"geometry":{"type":"Point","coordinates":[0,0]}}
{"type":"Feature","properties":{"what":"no id"},"geometry":{"type":"Point","coordinates":[1,1]}}
{"type":"Feature","id":12345,"properties":{"what":"will survive"},"geometry":{"type":"Point","coordinates":[1,1]}}
{"type":"Feature","id":12346,"properties":{"what":"will win over the duplicate even though it's in another tile"},"geometry":{"type":"Point","coordinates":[-1,-1]}}
tests/pbf/2.json
+3 -3
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@@ -1,3 +1,3 @@
{"type":"Feature","properties":{"what":"no id again"},"geometry":{"type":"Point","coordinates":[0,0]}}
{"type":"Feature","id":12346,"properties":{"what":"will be lost as a duplicate"},"geometry":{"type":"Point","coordinates":[0,0]}}
{"type":"Feature","id":12347,"properties":{"what":"will be added"},"geometry":{"type":"Point","coordinates":[0,0]}}
{"type":"Feature","properties":{"what":"no id again"},"geometry":{"type":"Point","coordinates":[1,1]}}
{"type":"Feature","id":12346,"properties":{"what":"will be lost as a duplicate"},"geometry":{"type":"Point","coordinates":[1,1]}}
{"type":"Feature","id":12347,"properties":{"what":"will be added"},"geometry":{"type":"Point","coordinates":[1,1]}}
tests/pbf/merged-dedup.pbf.json
+5 -7
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@@ -1,13 +1,11 @@
{ "type": "FeatureCollection", "properties": { "zoom": 0, "x": 0, "y": 0 }, "features": [
{ "type": "FeatureCollection", "properties": { "zoom": 1, "x": 1, "y": 0 }, "features": [
{ "type": "FeatureCollection", "properties": { "layer": "layer", "version": 2, "extent": 4096 }, "features": [
{ "type": "Feature", "properties": { "what": "no id" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "properties": { "what": "no id" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "id": 12345, "properties": { "what": "will survive" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "id": 12345, "properties": { "what": "will survive" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "id": 12346, "properties": { "what": "will win over the duplicate" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "properties": { "what": "no id again" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "properties": { "what": "no id again" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
,
{ "type": "Feature", "id": 12347, "properties": { "what": "will be added" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "id": 12347, "properties": { "what": "will be added" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
] }
] }
tests/pbf/merged-nodedup.pbf.json
+6 -8
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@@ -1,15 +1,13 @@
{ "type": "FeatureCollection", "properties": { "zoom": 0, "x": 0, "y": 0 }, "features": [
{ "type": "FeatureCollection", "properties": { "zoom": 1, "x": 1, "y": 0 }, "features": [
{ "type": "FeatureCollection", "properties": { "layer": "layer", "version": 2, "extent": 4096 }, "features": [
{ "type": "Feature", "properties": { "what": "no id" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "properties": { "what": "no id" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "id": 12345, "properties": { "what": "will survive" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "id": 12345, "properties": { "what": "will survive" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "id": 12346, "properties": { "what": "will win over the duplicate" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "properties": { "what": "no id again" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "properties": { "what": "no id again" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "id": 12346, "properties": { "what": "will be lost as a duplicate" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
,
{ "type": "Feature", "id": 12346, "properties": { "what": "will be lost as a duplicate" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
,
{ "type": "Feature", "id": 12347, "properties": { "what": "will be added" }, "geometry": { "type": "Point", "coordinates": [ 0.000000, 0.000000 ] } }
{ "type": "Feature", "id": 12347, "properties": { "what": "will be added" }, "geometry": { "type": "Point", "coordinates": [ 0.966797, 0.966751 ] } }
] }
] }