# Catch an off-centre Chunky selection before generating terrain

A radius does not establish where a pregeneration task is centred. An old selection can leave a new world generating around coordinates from a previous job. Read the complete selection before starting so the finished terrain covers the actual spawn and intended playable area.

## Work through the change

1. Write down the target world’s exact folder name and the planned centre coordinates. Decide whether the centre follows world spawn or a fixed location agreed with the map owner.
2. Select the target world in Chunky and set the centre explicitly using the installed command syntax. Set shape and radii too; avoid treating the current defaults as evidence of the intended area.
3. Use `chunky selection` to read the resulting world, centre, shape and radii together. Compare the minimum and maximum footprint with the playable border and any existing distant builds.
4. Start a modest trial area first and inspect new chunk growth around the intended centre. Record the selection output before extending to the full planned radius.

## Check the result

Generation should expand around the written centre and cover the intended corners or circular edge. A map preview can help, but its own rendering delay may hide recent terrain. Confirm coordinates in game and the active Chunky task status before leaving a large job unattended.

The selection readback is the approval point for the job. Save it where the next administrator can compare a running task with the original plan without reconstructing coordinates from memory.

## Recover or stop safely

Pause the task if its centre is wrong. Record what has already been generated, then plan a corrected selection without deleting terrain. Cancelling progress does not remove generated chunks, and a misplaced pregeneration area is not permission to trim a live world with player builds.

## Related guidance and maintainer reference

For the broader setup, read [Pre-generate Minecraft terrain with Chunky and monitor disk space](https://help.cloudexa-hosting.com/books/game-hosting/page/pre-generate-minecraft-terrain-with-chunky-and-monitor-disk-space). Check the installed plugin version before applying syntax from the [official Chunky documentation](https://github.com/pop4959/Chunky/wiki/Commands).