PathMetric class
Utilities for measuring a Path and extracting sub-paths.
Iterate over the object returned by Path.computeMetrics to obtain PathMetric objects.
Once created, the methods on this class will only be valid while the iterator is at the contour for which they were created. It will also only be valid for the path as it was specified when Path.computeMetrics was called. If additional contours are added or any contours are updated, the metrics need to be recomputed. Previously created metrics will still refer to a snapshot of the path at the time they were computed, rather than to the actual metrics for the new mutations to the path.
Properties
- contourIndex → int
-
The zero-based index of the contour. [...]
final
- isClosed → bool
-
Whether the contour is closed. [...]
final
- length → double
-
Return the total length of the current contour.
final
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
extractPath(
double start, double end, { bool startWithMoveTo: true }) → Path - Given a start and stop distance, return the intervening segment(s). [...]
-
getTangentForOffset(
double distance) → Tangent - Computes the position of the current contour at the given offset, and the angle of the path at that point. [...]
-
toString(
) → String -
Returns a string representation of this object.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited