Rectangle class - dart:math library (original) (raw)
Rectangle<T extends num> class
A class for representing two-dimensional rectangles whose properties are immutable.
Legacy: New usages of Rectangle are discouraged.
- If you are using the
Rectangleclass withdart:html, we recommend migrating topackage:web. To learn how and why to migrate, check out the migration guide. - If you want to store the boundaries of a rectangle in some coordinate system, consider using a record. Depending on how you will use it, this could look like
var boundaries = (mixX: x1, maxX: x2, minY: y1, maxY: y2). - If you need to perform intersection calculations or containment checks, consider using a dedicated library, such aspackage:vector_math.
- If you are developing a Flutter application or package, consider using theRecttype from
dart:ui.
Implementers
Constructors
Rectangle(T left, T top, T width, T height)
Create a rectangle spanned by (left, top) and(left+width, top+height).
const
Rectangle.fromPoints(Point<T> a, Point<T> b)
Create a rectangle spanned by the points a and b;
factory
Properties
bottom → T
The y-coordinate of the bottom edge.
no setterinherited
bottomLeft → Point<T>
no setterinherited
bottomRight → Point<T>
no setterinherited
The hash code for this object.
no setterinherited
height → T
The height of the rectangle.
final
left → T
The x-coordinate of the left edge.
final
right → T
The x-coordinate of the right edge.
no setterinherited
A representation of the runtime type of the object.
no setterinherited
top → T
The y-coordinate of the top edge.
final
no setterinherited
no setterinherited
width → T
The width of the rectangle.
final
Methods
boundingBox(Rectangle<T> other)→ Rectangle<T>
Returns a new rectangle which completely contains this and other.
inherited
containsPoint(Point<num> another)→ bool
Tests whether another is inside or along the edges of this.
inherited
containsRectangle(Rectangle<num> another)→ bool
Tests whether this entirely contains another.
inherited
intersection(Rectangle<T> other)→ Rectangle<T>?
Computes the intersection of this and other.
inherited
intersects(Rectangle<num> other)→ bool
Returns true if this intersects other.
inherited
noSuchMethod(Invocation invocation)→ dynamic
Invoked when a nonexistent method or property is accessed.
inherited
A string representation of this object.
inherited
Operators
operator ==(Object other)→ bool
The equality operator.
inherited