OSGeo
Straight line edge geometry is not updated in S57 ENC
Expected behavior and actual behavior.
According to S-57 standard (8.4.3.3 Coordinate control field):
In the case of inserting one or more coordinates into a target record representing a straight line (i.e. an edge which only references its connecting nodes, see clause 5.1.4.4), an update record must not contain a SGCC field and the coordinate fields of the update record must be added to the target record without further modification.
But in the method ApplyRecordUpdate() coordinates are updated only when SGCC field is present in the update record.
When loading update which modifies straight line edge by adding additional coordinates, those coordinates are not added, so the edge stays straight, resulting in incorrect object geometry.
Steps to reproduce the problem.
Load any S-57 cell with update containing vector record with RUIN = 3 (modify) and without SGCC field. Unfortunately, I didn't find any such cell in S-64 test dataset
Operating system
Windows 10
GDAL version and provenance
the 3.4.0 version from conda-forge
@kirill-steor Can you perhaps provide a pull request with the fix ? Or private access to a dataset that exhibits the issue ?
