Mask Attributes And Methods; Property Attributes And Methods - Adobe AFTER EFFECTS 7.0 Manual

Return type: Property.
param(name)
Argument type: name is a String.
Returns a property within an effect. Effect point controls are always in layer space. Example:
Hei g ht" )
Return type: Property.
param(index)
Argument type: index is a Number.
Returns a property within an effect. Effect point controls are always in layer space. For example,
returns the Bulge Height property.

Mask attributes and methods

Note: You cannot access the mask shape with an expression.
Return type: Property.
maskOpacity
Returns the mask's opacity value as a percentage.
Return type: Property.
maskFeather
Returns the mask's feather value, in pixels.
Return type: Property.
maskExpansion
Returns the mask's expansion value, in pixels.
Return type: Boolean.
invert
Returns true if the mask is inverted or false if it is not.

Property attributes and methods

Return type: Number or Array.
value
Returns the property's value at the current time.
Return type: Number or Array.
valueAtTime(t)
Argument type: t is a Number.
Returns the property's value at the specified time, in seconds.
Return type: Number or Array.
velocity
Returns the temporal velocity value at the current time. For spatial properties, such as Position, it returns the tangent
vector value. The result is the same dimension as the property.
Return type: Number or Array.
velocityAtTime(t)
Argument type: t is a Number.
Returns the temporal velocity value at the specified time.
Return type: Number.
speed
Returns a 1D, positive speed value equal to the speed at which the property is changing at the default time. This
element can be used only for spatial properties.
Return type: Number.
speedAtTime(t)
ADOBE AFTER EFFECTS 7.0
User Guide
ef fe c t("Bu l ge")("Bu l ge
ef fe c t("Bu l ge")(4)
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