Error
Error Code:
4033
MySQL Error 4033: Invalid Polygon Ring Direction
Description
This error signifies an issue when MySQL attempts to cast or process spatial data, specifically a polygon. It occurs when a polygon's exterior or interior rings are defined with an incorrect winding order (clockwise vs. counter-clockwise), violating spatial data standards and preventing valid geometry operations.
Error Message
Invalid cast from %s to %s. A polygon ring is in the wrong direction.
Known Causes
3 known causesIncorrect Polygon Winding Order
The polygon's exterior ring is defined in a clockwise direction, or an interior ring (hole) is defined counter-clockwise, which contradicts OGC Simple Feature Access standards.
Malformed Spatial Data Input
The Well-Known Text (WKT) or Well-Known Binary (WKB) string provided for the polygon geometry contains an incorrect or inconsistent definition of ring directions.
Data Transformation Errors
Spatial data imported or transformed from another source might have had its polygon ring directions inadvertently altered or corrupted during the conversion process.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service