Line class

A line segment defined by two endpoints a and b.

Provides geometric operations including slope, intercepts, intersection detection, distance calculations, and projections.

final line = Line(Point(0, 0), Point(4, 3));
print(line.length);   // 5.0
print(line.midPoint);  // Point(2, 1.5)

Constructors

Line(Point a, Point b): Creates a line segment from point a to point b.
const

a → Point: First endpoint.
final
b → Point: Second endpoint.
final
hashCode → int: The hash code for this object.
no setteroverride
isHorizontal → bool: Whether this line segment is horizontal (same y for both endpoints)
no setter
isVertical → bool: Whether this line segment is vertical (same x for both endpoints)
no setter
length → double: Length of this line
no setter
midPoint → Point: The midpoint of the line
no setter
points → List<Point>: Get list of points
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
slope → double: Get slope of this line
no setter
xIntercept → double: Get the x-intercept of this line
no setter
yIntercept → double: Get the y-intercept of this line
no setter

distanceFromAPoint(Point point) → double: get the distance from a points to this line
extend(double amount) → Line: Return new line extended by amount from both ends
getAngleWith(Line other) → Rad: Get the angle between this line and another line
getIntersectPoint(Line other) → Point?: Get Intersect point of this line and another line
hasPoint(Point point) → bool: Check if a point is belong to this line
innerAngleWith(Line other) → Rad: Get the inner angle between this line and another line
intersect(Line other) → bool: Check if this line and other line intersect
isParallelTo(Line other) → bool: Check if this line is parallel to other
isPerpendicularTo(Line other) → bool: Check if this line is perpendicular to other
lerp(double t) → Point: Get point at parameter t along segment
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
outerAngleWith(Line other) → Rad: Get the outer angle between this line and another line
projectPoint(Point point) → Point: Get closest point on this line segment to point
rotate(double deg) → Line: Rotate the line by deg degrees
scale(double factor) → Line: Scale the line by factor
toString() → String: A string representation of this object.
override
translate({double x = 0, double y = 0}) → Line: Translate the line by x horizontally and y vertically