Add a test of clipping the clip region down to the tile boundary

felt · Nov 27, 2024 · 1be64f6 · 1be64f6
1 parent 75511a7
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diff --git a/Makefile b/Makefile
@@ -424,6 +424,11 @@ overzoom-test: tippecanoe-overzoom
 	./tippecanoe-decode tests/pbf/places-1-1-0-clip.pbf 1 1 0 > tests/pbf/places-1-1-0-clip.json.check
 	cmp tests/pbf/places-1-1-0-clip.json.check tests/pbf/places-1-1-0-clip.json
 	rm tests/pbf/places-1-1-0-clip.pbf tests/pbf/places-1-1-0-clip.json.check
+	# Polygon clipping, with excessively large clip region
+	./tippecanoe-overzoom -b10 -o tests/pbf/countries-8-135-86-bigclip.pbf --clip-polygon "`cat tests/pbf/region.json`" tests/pbf/countries-1-1-0.pbf 1/1/0 8/135/86
+	./tippecanoe-decode tests/pbf/countries-8-135-86-bigclip.pbf 8 135 86 > tests/pbf/countries-8-135-86-bigclip.json.check
+	cmp tests/pbf/countries-8-135-86-bigclip.json.check tests/pbf/countries-8-135-86-bigclip.json
+	rm tests/pbf/countries-8-135-86-bigclip.pbf tests/pbf/countries-8-135-86-bigclip.json.check
 
 join-test: tippecanoe tippecanoe-decode tile-join
 	./tippecanoe -q -f -z12 -o tests/join-population/tabblock_06001420.mbtiles -YALAND10:'Land area' -L'{"file": "tests/join-population/tabblock_06001420.json", "description": "population"}'

diff --git a/tests/pbf/countries-8-135-86-bigclip.json b/tests/pbf/countries-8-135-86-bigclip.json
@@ -0,0 +1,5 @@
+{ "type": "FeatureCollection", "properties": { "zoom": 8, "x": 135, "y": 86 }, "features": [
+{ "type": "FeatureCollection", "properties": { "layer": "ne_10m_admin_0_countries", "version": 2, "extent": 4096 }, "features": [
+{ "type": "Feature", "properties": { "NAME": "Germany" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 11.210518, 50.771208 ], [ 11.304932, 50.271568 ], [ 11.304932, 49.802541 ], [ 9.788818, 49.802541 ], [ 9.788818, 50.771208 ], [ 11.210518, 50.771208 ] ] ] } }
+] }
+] }