Opened 5 years ago

Closed 3 years ago

#6918 closed defect (wontfix)

Oracle driver does not read some compound polygons

Reported by: Jukka Rahkonen Owned by: warmerdam
Priority: normal Milestone: closed_because_of_github_migration
Component: default Version: unspecified
Severity: normal Keywords:


Some compound polygon geometries from Oracle are converted into empty geometries. By a preliminary investigation I suspect that error happens when SDO_GEOMETRY contain circular arc elements which are expressed with more than 3 points which means that several arcs are connected to each other as a chain.

Issue can be repeated with an attached geometry.

Oracle document

"Line string made up of a connected sequence of circular arcs.

Each circular arc is described using three coordinates: the start point of the arc, any point on the arc, and the end point of the arc. The coordinates for a point designating the end of one arc and the start of the next arc are not repeated. For example, five coordinates are used to describe a line string made up of two connected circular arcs. Points 1, 2, and 3 define the first arc, and points 3, 4, and 5 define the second arc, where point 3 is only stored once."

Attachments (1)

export.sql (8.9 KB) - added by Jukka Rahkonen 5 years ago.
SQL insert for the problematic geometry

Download all attachments as: .zip

Change History (2)

Changed 5 years ago by Jukka Rahkonen

Attachment: export.sql added

SQL insert for the problematic geometry

comment:1 Changed 3 years ago by Even Rouault

Milestone: closed_because_of_github_migration
Resolution: wontfix
Status: newclosed

This ticket has been automatically closed because Trac is no longer used for GDAL bug tracking, since the project has migrated to GitHub?. If you believe this ticket is still valid, you may file it to if it is not already reported there.

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