## Transform Menu

- Repeat Last
- Basic
- Flip and Rotate
- Fractals
- Texture

### Repeat Last

Applies the most recently used transformation to the current selection. The options window for the transformation, if there is one, is not shown.

### Basic

- Set Level
- Raise By One
- Lower By One
- Gradient
- Fill
- Level Off
- Scale

### Set Level

Sets the height of the selected squares to a specific value.

### Raise By One

Increases the height of the selected squares by one unit (13 metres). There is no options window for this transform.

### Lower By One

Decreases the height of the selected squares by one unit (13 metres). There is no options window for this transform.

### Gradient

Creates a smooth slope over the selected squares. The options window allows you to specify the height of the slope at the corners of the bounding rectangle of the selection.

### Fill

Selected squares that are less than the specified height are changed to be that height. Selected squares that are already higher are not affected.

### Level Off

Selected squares that are greater than the specified height are changed to be that height. Selected squares that are already lower are not affected.

### Scale

Changes the height of the selected squares by the specified percentage. The base height is used as a zero reference point for the scaling. For example, if you wanted to double the size of a mountain, and the base of the mountain was 3 units (39 metres) above sea level, you would enter 200% for the scaling factor and 3 units as the base height.

### Flip and Rotate

- Terrain
- Mountain
- Lake

### Terrain

Fills the selected squares with a fractal-generated terrain.

### Mountain

Fills the selected squares with a fractal-generated mountain.

### Lake

Fills the selected squares with a fractal-generated lake.

### Flip and Rotate

- Flip Horizontal
- Flip Vertical
- Rotate Right
- Rotate Left

### Flip Horizontal

Swaps squares on the left of the selection with squares on the right, and vice versa. Written by Terence Martin.

### Flip Vertical

Swaps squares on the top of the selection with squares on the bottom, and vice versa. Written by Terence Martin.

### Rotate Right

Moves selected squares 90 degrees clockwise around the centre of the selection. Written by Terence Martin.

### Rotate Left

Moves selected squares 90 degrees anti-clockwise around the centre of the selection. Written by Terence Martin.

### Texture

- Roughen
- Smooth

### Roughen

Randomly changes the height of the selected squares by either increasing the height by one, decreasing by one or not changing the height.

### Smooth

Smooths the selected terrain by setting the height of each square to the average of heights surrounding it. Written by Terence Martin.