# Draw subdivided shapes

Aim

To automatically divide a circle and a rectangular shape into a number of zones. This applies when:

▪You draw an arena and you want to split it in equal zones like the four quadrants in a Morris water maze.

▪Within an existing arena, draw a shape and divide it in a number of zones.

Result: Zones are automatically defined with labels S1, S2, etc. provided that the Auto-Label Zone option is active.

To subdivide an arena in zones

This applies when you still have to draw the outline of the arena. See Make a subdivided arena.

To divide a shape within an existing arena

1.In the Arenas and Zones section, click 2. Select Shape and Draw Zones (Optional).

2.In the Arenas and Zones section, click the zone group where you want to insert the zones that result from the subdivision.

3.Click one of the buttons on the toolbar:

For circular shapes, subdivided 3-point circle or press I.

For rectangular shapes, subdivided rectangle or press U.

4.Draw the shape.

5.In the Add Subdivided [Circle/Rectangle] window:

For circular shapes, enter the number of sectors (for example, 4 for quadrants in a Morris water maze).

For rectangular arenas, enter the number of rows and columns. A total of rows x columns equal zones will be defined.

Result: in the Arenas and Zones section, the zones are defined in the zone group that you clicked in step 2.

The Subdivision Zones group

Subdivision Zones is a zone group that includes the zones created in a subdivided arena.

note The Subdivision Zones zone group is not created when you subdivide a shape within an existing arena.

Subdivision segments

A subdivided shape is defined by a number of segments. Move and resize a segment just like with other shapes.