# Pattern¶

## Supported pattern¶

### Chessboard patterns¶

 Name Value Setting Rows 6 pattern_rows Columns 11 pattern_columns Square width 13 mm pattern_square_width Origin distance > 0.0 mm pattern_origin_distance

Note

These values can be set in Calibration workbench > Pattern settings.

Warning

It must be an odd number of columns in order to define an unique origin of the pattern.

## Origin distance¶

The origin distance is the minimum distance between the origin of the pattern (bottom-left corner) and the pattern’s base surface. This value is used to define where is the pattern with respect to the turntable.

## Pattern detection¶

When the pattern is correctly detected, the following colored dots and lines are drawn.

## Troubleshooting¶

### Pattern not detected¶

If the pattern is not detected:

1. Check the Calibration workbench > Pattern settings.
2. Improve the environment light conditions.
3. Adjust the camera settings in Adjustment workbench > Calibration capture > Pattern.