Feature class abstract
While a polygon's shape can be drawn solely using a list of Cubic objects representing its raw curves and lines, features add an extra layer of context to groups of cubics. Features group cubics into (straight) edges, convex corners, or concave corners. For example, rounding a rectangle adds many cubics around its edges, but the rectangle's overall number of corners remains the same. Morph therefore uses this grouping for several reasons:
- Noise Reduction: Grouping cubics reduces the amount of noise introduced by individual cubics (as seen in the rounded rectangle example).
- Mapping Base: The grouping serves as the base set for Morph's mapping process.
- Curve Type Mapping: Morph maps similar curve types (convex, concave) together. Note that
edges or features created with
buildIgnorableFeatureare ignored in the default mapping.
By using features, you can manipulate polygon shapes with more context and control.
Constructors
-
Feature(List<
Cubic> cubics) -
const
-
Feature.concaveCorner(List<
Cubic> cubics) -
Group a list of Cubic objects to a concave corner
(inward indentation in a shape).
factory
-
Feature.convexCorner(List<
Cubic> cubics) -
Group a list of Cubic objects to a convex corner
(outward indentation in a shape).
factory
- Feature.edge(Cubic cubic)
-
Group a Cubic object to an edge
(neither inward or outward identification in a shape).
factory
-
Feature.ignorable(List<
Cubic> cubics) -
Group a list of Cubic objects to a feature that
should be ignored in the default Morph mapping.
The feature can have any indentation.
factory
Properties
-
cubics
→ List<
Cubic> -
final
- hashCode → int
-
The hash code for this object.
no setteroverride
- isConcaveCorner → bool
-
Whether this Feature is a concave corner (inward indentation in a shape).
no setter
- isConvexCorner → bool
-
Whether this Feature is a convex corner (outward indentation in a shape).
no setter
- isEdge → bool
-
Whether this Feature is an Edge with no inward or outward indentation.
no setter
- isIgnorableFeature → bool
-
Whether this Feature gets ignored in the Morph mapping.
See Feature.ignorable for more details.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reversed(
) → Feature - Returns a new Feature with the points that define the shape of this Feature in reversed order.
-
toString(
) → String -
A string representation of this object.
inherited
-
transformed(
PointTransformer f) → Feature - Transforms the points in this Feature with the given PointTransformer and returns a new Feature.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override