﻿ Layer Parameters
Stage Guide > Toon Boom Harmony 10 Stage User Guide > Chapter 16: Animation Paths > Differences Between Pegs and Animated Layers > Layer Parameters

## Layer Parameters

A layer is composed of many customizable parameters, such as the X, Y and Z positions, angle (rotation), skew and scales. Each parameter has its own function. A function is a mathematical formula expressing the relation between position values. You can view each function on a graph as a simple curve such as this one.

 • 3D Path
 • Separate Positions
 • Locked Scales and Separated Scales
 • Setting the Parameters

To display the Layer parameters in the Timeline view:

 1 Do one of the following:
 ‣ In the Timeline’s left side, click the Expand button or press [Alt] + [F].
 ‣ To display the functions of a selected layer, select View > Show Functions from the Timeline View menu.

 2 There are six options available for setting up function parameters:
 ‣ Locked Positions (3D Path)
 ‣ Separate Positions
 ‣ Locked Scales
 ‣ Separate Scales
 ‣ Quaternion (3D Rotation)
 ‣ Euler Angles (3D Rotation)

You must lock or unlock your functions before starting the animation. When you lock or unlock parameters, this does not convert the functions from one to the other, but creates new ones.

### 3D Path

In a 3D Path, the X, Y and Z curves are locked together and controlled by a single velocity function. When you add a keyframe, it is added on all three trajectories at once, as is the velocity. This is very useful for long, smooth trajectories.

### Separate Positions

When the Separate Positions option is used, the X, Y and Z curves are independent and have velocity controls directly on their function curve. This is useful when you want to set keyframes on one of the curves without affecting the others.

### Locked Scales and Separated Scales

When using the scale function, you can have a single function curve controlling both the vertical and horizontal scale, or have the two scales separate. This means that when using the single function, the values will be the same for the X (horizontal) and the Y (vertical) axes, enabling a uniform size change without distortion. However, if you separate the scale functions, you will be able to squash, stretch and skew your elements.

### Setting the Parameters

You can set the parameters for 2D motion.

To set the parameters:

 1 In the Timeline view, double-click the layer on which you want to set the parameter.

The Layer Properties editor opens.

 2 Select the Transformation tab.
 3 In the Position section, select the 3D Path or Separate option.
 4 In the Scale section, select the Locked or Separate option.
 5 Click Close.

Related Topics

 • 3D Parameters
 • 3D Space