Drawing tools tab on Model Options dialog.
By default DesignBuilder automatically generates zones as partitions are drawn. You can change this behaviour by unchecking the Automatic block zoning option. In this case partitions are shown in blue as they are drawn and are referred to as outline partitions. Outline partitions do not create new zones and are modelled in the same way in simulations as hanging partitions. To convert any outline partitions to standard partitions and to rezone the block use the Rezone block command accessed from the Tools menu. Note that outline partitions that do not connect at both ends (known in DesignBuilder as hanging partitions) will remain in blue even after the Rezone block command.
Alternatively, to convert all outline partitions in the building to standard partitions and hence rezone the whole building you can use the Rebuild command. This will take longer to process than the Rezone block command as it recalculates the surface and adjacency geometry as well rezoning.
Note: switching Automatic block zoning off also prevents rezoning following other partition edit commands such as delete, copy and undo/redo.
Select this option if you would like DesignBuilder to automatically punch voids through new blocks drawn on top of existing blocks having voids. If you leave this option switched off (default state) you can still draw voids at the block level using the ghosted outline of adjacent voids in a block below as a guide.