Opened 22 months ago
#5357 new defect
Invalid conversion of 2-points line in ST_LineFromEncodedPolyline
Reported by: | perikrone | Owned by: | pramsey |
---|---|---|---|
Priority: | medium | Milestone: | PostGIS PostgreSQL |
Component: | postgis | Version: | 3.2.x |
Keywords: | ST_LineFromEncodedPolyline | Cc: |
Description
In cases when encoded polyline consists of two points located close to each other ST_LineFromEncodedPolyline returns single point instead of pair. Example:
SELECT st_astext(ST_LineFromEncodedPolyline('__nphBgcoeiA?@', 6)); st_astext --------------------------------- LINESTRING(38.903876 55.336448)
But if you try to convert this polyline in python, script results in correct pair of points. Python script:
import polyline shape = polyline.decode("__nphBgcoeiA?@", precision=6) print(rose_shape)
Result:
[[38.903876, 55.336448], [38.903875, 55.336448]]
Info about postgres and postgis:
SELECT PostGIS_Full_Version(); POSTGIS="3.2.2 628da50" [EXTENSION] PGSQL="140" GEOS="3.10.3-CAPI-1.16.1" PROJ="8.2.1" GDAL="GDAL 3.4.3, released 2022/04/22" LIBXML="2.9.7" LIBJSON="0.13.1" LIBPROTOBUF="1.3.0" WAGYU="0.5.0 (Internal)" RASTER SELECT version(); PostgreSQL 14.4 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-10), 64-bit
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