Shape
FeatherPoint
¶
A single variable-width mask feather point.
Feather points can be placed anywhere along a closed mask path to vary the feather radius at different positions. Reference a specific feather point by the number of the mask path segment (portion of the path between adjacent vertices) where it appears.
Tip
The feather points on a mask are listed in an array in the order that they were created.
Attributes¶
interp
¶
interp = ChunkField[int](
"_fp",
"interp_raw",
transform=_interp_transform,
reverse_seq_field=_interp_reverse,
)
Radius interpolation type: 0 for non-Hold feather points, 1 for Hold feather points. Read / Write.
radius
¶
radius = ChunkField[float]('_fp', 'radius')
Feather radius (amount). Negative values indicate inner feather points; positive values indicate outer feather. Read / Write.
rel_corner_angle
¶
rel_corner_angle = ChunkField[float]('_fp', 'corner_angle')
Relative angle percentage between the two normals on either side of a curved outer feather boundary at a corner on a mask path. The angle value is 0% for feather points not at corners. Read / Write.
rel_seg_loc
¶
rel_seg_loc = ChunkField[float](
"_fp",
"rel_seg_loc",
validate=validate_number(min=0.0, max=1.0),
)
Relative position on the segment, from 0.0 (at the starting vertex) to 1.0 (at the next vertex). Read / Write.
seg_loc
¶
seg_loc = ChunkField[int](
"_fp",
"seg_loc",
validate=validate_number(min=0, integer=True),
)
Mask path segment number where this feather point is located (0-based, segments are portions of the path between vertices). Read / Write.
Shape
¶
The Shape object encapsulates information describing a shape in a shape layer, or the outline shape of a Mask. It is the value of the "Mask Path" AE properties, and of the "Path" AE property of a shape layer.
A shape has a set of anchor points, or vertices, and a pair of direction handles, or
tangent vectors, for each anchor point. A tangent vector (in a non-roto_bezier mask)
determines the direction of the line that is drawn to or from an anchor point. There
is one incoming tangent vector and one outgoing tangent vector associated with each
vertex in the shape.
A tangent value is a pair of x,y coordinates specified relative to the associated
vertex. For example, a tangent of [-1,-1] is located above and to the left of the
vertex and has a 45 degree slope, regardless of the actual location of the
vertex. The longer a handle is, the greater its influence; for example, an
incoming shape segment stays closer to the vector for an in_tangent of [-2,-2]
than it does for an in_tangent of [-1,-1], even though both of these come toward
the vertex from the same direction.
If a shape is not closed, the in_tangent for the first vertex and the
out_tangent for the final vertex are ignored. If the shape is closed, these two
vectors specify the direction handles of the final connecting segment out of the
final vertex and back into the first vertex.
roto_bezier masks calculate their tangents automatically (see MaskPropertyGroup.roto_bezier). If a shape is used in a roto_bezier mask, the tangent values are ignored.
For closed mask shapes, variable-width mask feather points can exist anywhere along the mask path. Feather points are part of the Mask Path property. Reference a specific feather point by the number of the mask path segment (portion of the path between adjacent vertices) where it appears.
Tip
The feather points on a mask are listed in an array in the order that they were created.
Example
See: https://ae-scripting.docsforadobe.dev/other/shape/
Attributes¶
closed
¶
closed: bool
When True, the first and last vertices are connected to form a closed
curve. When False, the closing segment is not drawn.
feather_points
¶
List of variable-width mask feather points.
in_tangents
¶
The incoming tangent vectors, or direction handles, associated with the vertices of the shape. Specify each vector as an array of two floating-point values, and collect the vectors into an array the same length as the vertices array.
Each tangent value defaults to [0,0]. When the mask shape is not roto_bezier, this results in a straight line segment.
If the shape is in a roto_bezier mask, all tangent values are ignored and the tangents are automatically calculated.
out_tangents
¶
The outgoing tangent vectors, or direction handles, associated with the vertices of the shape. Specify each vector as an array of two floating-point values, and collect the vectors into an array the same length as the vertices array.
Each tangent value defaults to [0,0]. When the mask shape is not roto_bezier, this results in a straight line segment.
If the shape is in a roto_bezier mask, all tangent values are ignored and the tangents are automatically calculated.