[Geoserver-devel] [JIRA] (GEOS-7932) Unknown WKB type 237

GeoServer GeoServer Developer
1

Bart van den Eijnden created an issue

GeoServer / BugGEOS-7932

Unknown WKB type 237

Issue Type:

BugBug

Assignee:

Unassigned

Created:

17/Jan/17 9:31 AM

Priority:

MediumMedium

Reporter:

Bart van den Eijnden

Cannot use the GeoPackage dataset for sewers from the official site

http://www.geopackage.org/data/simple_sewer_features.gpkg

From Erik Merkle:

It appears this GeoPackage file is WKB encoded with Z data, but the JTS WKBReader used in GeoTools isn’t parsing it correclty.
[cut from Slack]
I haven’t found much on WKB 237, however in the WKBReader code, it looks like it tries to parse out the geometry type:
int typeInt = dis.readInt();
int geometryType = typeInt & 0xff;
the typeInt is 1005 (decimal), when masked with 0xff is 237
From here: https://en.wikipedia.org/wiki/Well-known_text, it seems like 1005 is a MultiLineString with Z data.
Seems this is a known limitation of the JTS library: https://lists.osgeo.org/pipermail/geos-devel/2013-December/006757.html
it doesn’t understand 4 digit geometry codes

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