Rectangle

new Cesium.Rectangle(west, south, east, north)
engine/Source/Core/Rectangle.js 21

A two dimensional region specified as longitude and latitude coordinates.
Name Type Default Description
west Number 0.0 optional The westernmost longitude, in radians, in the range [-Pi, Pi].
south Number 0.0 optional The southernmost latitude, in radians, in the range [-Pi/2, Pi/2].
east Number 0.0 optional The easternmost longitude, in radians, in the range [-Pi, Pi].
north Number 0.0 optional The northernmost latitude, in radians, in the range [-Pi/2, Pi/2].
See:

Members

static constant Cesium.Rectangle.MAX_VALUE : Rectangle
engine/Source/Core/Rectangle.js 974

The largest possible rectangle.

static Cesium.Rectangle.packedLength : Number
engine/Source/Core/Rectangle.js 85

The number of elements used to pack the object into an array.

east : Number
engine/Source/Core/Rectangle.js 44

The easternmost longitude in radians in the range [-Pi, Pi].
Default Value: 0.0

readonly height : Number
engine/Source/Core/Rectangle.js 74

Gets the height of the rectangle in radians.

north : Number
engine/Source/Core/Rectangle.js 52

The northernmost latitude in radians in the range [-Pi/2, Pi/2].
Default Value: 0.0

south : Number
engine/Source/Core/Rectangle.js 36

The southernmost latitude in radians in the range [-Pi/2, Pi/2].
Default Value: 0.0

west : Number
engine/Source/Core/Rectangle.js 28

The westernmost longitude in radians in the range [-Pi, Pi].
Default Value: 0.0

readonly width : Number
engine/Source/Core/Rectangle.js 62

Gets the width of the rectangle in radians.

Methods

static Cesium.Rectangle.center(rectangle, result) → Cartographic
engine/Source/Core/Rectangle.js 577

Computes the center of a rectangle.
Name Type Description
rectangle Rectangle The rectangle for which to find the center
result Cartographic optional The object onto which to store the result.
Returns:
The modified result parameter or a new Cartographic instance if none was provided.

static Cesium.Rectangle.clone(rectangle, result) → Rectangle
engine/Source/Core/Rectangle.js 347

Duplicates a Rectangle.
Name Type Description
rectangle Rectangle The rectangle to clone.
result Rectangle optional The object onto which to store the result, or undefined if a new instance should be created.
Returns:
The modified result parameter or a new Rectangle instance if none was provided. (Returns undefined if rectangle is undefined)

static Cesium.Rectangle.computeHeight(rectangle) → Number
engine/Source/Core/Rectangle.js 160

Computes the height of a rectangle in radians.
Name Type Description
rectangle Rectangle The rectangle to compute the height of.
Returns:
The height.

static Cesium.Rectangle.computeWidth(rectangle) → Number
engine/Source/Core/Rectangle.js 143

Computes the width of a rectangle in radians.
Name Type Description
rectangle Rectangle The rectangle to compute the width of.
Returns:
The width.

static Cesium.Rectangle.contains(rectangle, cartographic) → Boolean
engine/Source/Core/Rectangle.js 791

Returns true if the cartographic is on or inside the rectangle, false otherwise.
Name Type Description
rectangle Rectangle The rectangle
cartographic Cartographic The cartographic to test.
Returns:
true if the provided cartographic is inside the rectangle, false otherwise.

static Cesium.Rectangle.equals(left, right) → Boolean
engine/Source/Core/Rectangle.js 421

Compares the provided rectangles and returns true if they are equal, false otherwise.
Name Type Description
left Rectangle optional The first Rectangle.
right Rectangle optional The second Rectangle.
Returns:
true if left and right are equal; otherwise false.

static Cesium.Rectangle.equalsEpsilon(left, right, absoluteEpsilon) → Boolean
engine/Source/Core/Rectangle.js 378

Compares the provided Rectangles componentwise and returns true if they pass an absolute or relative tolerance test, false otherwise.
Name Type Default Description
left Rectangle optional The first Rectangle.
right Rectangle optional The second Rectangle.
absoluteEpsilon Number 0 optional The absolute epsilon tolerance to use for equality testing.
Returns:
true if left and right are within the provided epsilon, false otherwise.

static Cesium.Rectangle.expand(rectangle, cartographic, result) → Rectangle
engine/Source/Core/Rectangle.js 766

Computes a rectangle by enlarging the provided rectangle until it contains the provided cartographic.
Name Type Description
rectangle Rectangle A rectangle to expand.
cartographic Cartographic A cartographic to enclose in a rectangle.
result Rectangle optional The object onto which to store the result.
Returns:
The modified result parameter or a new Rectangle instance if one was not provided.

static Cesium.Rectangle.fromCartesianArray(cartesians, ellipsoid, result) → Rectangle
engine/Source/Core/Rectangle.js 289

Creates the smallest possible Rectangle that encloses all positions in the provided array.
Name Type Default Description
cartesians Array.<Cartesian3> The list of Cartesian instances.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The ellipsoid the cartesians are on.
result Rectangle optional The object onto which to store the result, or undefined if a new instance should be created.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.

static Cesium.Rectangle.fromCartographicArray(cartographics, result) → Rectangle
engine/Source/Core/Rectangle.js 231

Creates the smallest possible Rectangle that encloses all positions in the provided array.
Name Type Description
cartographics Array.<Cartographic> The list of Cartographic instances.
result Rectangle optional The object onto which to store the result, or undefined if a new instance should be created.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.

static Cesium.Rectangle.fromDegrees(west, south, east, north, result) → Rectangle
engine/Source/Core/Rectangle.js 180

Creates a rectangle given the boundary longitude and latitude in degrees.
Name Type Default Description
west Number 0.0 optional The westernmost longitude in degrees in the range [-180.0, 180.0].
south Number 0.0 optional The southernmost latitude in degrees in the range [-90.0, 90.0].
east Number 0.0 optional The easternmost longitude in degrees in the range [-180.0, 180.0].
north Number 0.0 optional The northernmost latitude in degrees in the range [-90.0, 90.0].
result Rectangle optional The object onto which to store the result, or undefined if a new instance should be created.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.
Example:
const rectangle = Cesium.Rectangle.fromDegrees(0.0, 20.0, 10.0, 30.0);

static Cesium.Rectangle.fromRadians(west, south, east, north, result) → Rectangle
engine/Source/Core/Rectangle.js 211

Creates a rectangle given the boundary longitude and latitude in radians.
Name Type Default Description
west Number 0.0 optional The westernmost longitude in radians in the range [-Math.PI, Math.PI].
south Number 0.0 optional The southernmost latitude in radians in the range [-Math.PI/2, Math.PI/2].
east Number 0.0 optional The easternmost longitude in radians in the range [-Math.PI, Math.PI].
north Number 0.0 optional The northernmost latitude in radians in the range [-Math.PI/2, Math.PI/2].
result Rectangle optional The object onto which to store the result, or undefined if a new instance should be created.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.
Example:
const rectangle = Cesium.Rectangle.fromRadians(0.0, Math.PI/4, Math.PI/8, 3*Math.PI/4);

static Cesium.Rectangle.intersection(rectangle, otherRectangle, result) → Rectangle|undefined
engine/Source/Core/Rectangle.js 614

Computes the intersection of two rectangles. This function assumes that the rectangle's coordinates are latitude and longitude in radians and produces a correct intersection, taking into account the fact that the same angle can be represented with multiple values as well as the wrapping of longitude at the anti-meridian. For a simple intersection that ignores these factors and can be used with projected coordinates, see Rectangle.simpleIntersection.
Name Type Description
rectangle Rectangle On rectangle to find an intersection
otherRectangle Rectangle Another rectangle to find an intersection
result Rectangle optional The object onto which to store the result.
Returns:
The modified result parameter, a new Rectangle instance if none was provided or undefined if there is no intersection.

static Cesium.Rectangle.northeast(rectangle, result) → Cartographic
engine/Source/Core/Rectangle.js 535

Computes the northeast corner of a rectangle.
Name Type Description
rectangle Rectangle The rectangle for which to find the corner
result Cartographic optional The object onto which to store the result.
Returns:
The modified result parameter or a new Cartographic instance if none was provided.

static Cesium.Rectangle.northwest(rectangle, result) → Cartographic
engine/Source/Core/Rectangle.js 514

Computes the northwest corner of a rectangle.
Name Type Description
rectangle Rectangle The rectangle for which to find the corner
result Cartographic optional The object onto which to store the result.
Returns:
The modified result parameter or a new Cartographic instance if none was provided.

static Cesium.Rectangle.pack(value, array, startingIndex) → Array.<Number>
engine/Source/Core/Rectangle.js 96

Stores the provided instance into the provided array.
Name Type Default Description
value Rectangle The value to pack.
array Array.<Number> The array to pack into.
startingIndex Number 0 optional The index into the array at which to start packing the elements.
Returns:
The array that was packed into

static Cesium.Rectangle.simpleIntersection(rectangle, otherRectangle, result) → Rectangle|undefined
engine/Source/Core/Rectangle.js 681

Computes a simple intersection of two rectangles. Unlike Rectangle.intersection, this function does not attempt to put the angular coordinates into a consistent range or to account for crossing the anti-meridian. As such, it can be used for rectangles where the coordinates are not simply latitude and longitude (i.e. projected coordinates).
Name Type Description
rectangle Rectangle On rectangle to find an intersection
otherRectangle Rectangle Another rectangle to find an intersection
result Rectangle optional The object onto which to store the result.
Returns:
The modified result parameter, a new Rectangle instance if none was provided or undefined if there is no intersection.

static Cesium.Rectangle.southeast(rectangle, result) → Cartographic
engine/Source/Core/Rectangle.js 556

Computes the southeast corner of a rectangle.
Name Type Description
rectangle Rectangle The rectangle for which to find the corner
result Cartographic optional The object onto which to store the result.
Returns:
The modified result parameter or a new Cartographic instance if none was provided.

static Cesium.Rectangle.southwest(rectangle, result) → Cartographic
engine/Source/Core/Rectangle.js 493

Computes the southwest corner of a rectangle.
Name Type Description
rectangle Rectangle The rectangle for which to find the corner
result Cartographic optional The object onto which to store the result.
Returns:
The modified result parameter or a new Cartographic instance if none was provided.

static Cesium.Rectangle.subsample(rectangle, ellipsoid, surfaceHeight, result) → Array.<Cartesian3>
engine/Source/Core/Rectangle.js 831

Samples a rectangle so that it includes a list of Cartesian points suitable for passing to BoundingSphere#fromPoints. Sampling is necessary to account for rectangles that cover the poles or cross the equator.
Name Type Default Description
rectangle Rectangle The rectangle to subsample.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The ellipsoid to use.
surfaceHeight Number 0.0 optional The height of the rectangle above the ellipsoid.
result Array.<Cartesian3> optional The array of Cartesians onto which to store the result.
Returns:
The modified result parameter or a new Array of Cartesians instances if none was provided.

static Cesium.Rectangle.subsection(rectangle, westLerp, southLerp, eastLerp, northLerp, result) → Rectangle
engine/Source/Core/Rectangle.js 908

Computes a subsection of a rectangle from normalized coordinates in the range [0.0, 1.0].
Name Type Description
rectangle Rectangle The rectangle to subsection.
westLerp Number The west interpolation factor in the range [0.0, 1.0]. Must be less than or equal to eastLerp.
southLerp Number The south interpolation factor in the range [0.0, 1.0]. Must be less than or equal to northLerp.
eastLerp Number The east interpolation factor in the range [0.0, 1.0]. Must be greater than or equal to westLerp.
northLerp Number The north interpolation factor in the range [0.0, 1.0]. Must be greater than or equal to southLerp.
result Rectangle optional The object onto which to store the result.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.

static Cesium.Rectangle.union(rectangle, otherRectangle, result) → Rectangle
engine/Source/Core/Rectangle.js 715

Computes a rectangle that is the union of two rectangles.
Name Type Description
rectangle Rectangle A rectangle to enclose in rectangle.
otherRectangle Rectangle A rectangle to enclose in a rectangle.
result Rectangle optional The object onto which to store the result.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.

static Cesium.Rectangle.unpack(array, startingIndex, result) → Rectangle
engine/Source/Core/Rectangle.js 120

Retrieves an instance from a packed array.
Name Type Default Description
array Array.<Number> The packed array.
startingIndex Number 0 optional The starting index of the element to be unpacked.
result Rectangle optional The object into which to store the result.
Returns:
The modified result parameter or a new Rectangle instance if one was not provided.

static Cesium.Rectangle.validate(rectangle)
engine/Source/Core/Rectangle.js 456

Checks a Rectangle's properties and throws if they are not in valid ranges.
Name Type Description
rectangle Rectangle The rectangle to validate
Throws:

clone(result) → Rectangle
engine/Source/Core/Rectangle.js 398

Duplicates this Rectangle.
Name Type Description
result Rectangle optional The object onto which to store the result.
Returns:
The modified result parameter or a new Rectangle instance if none was provided.

equals(other) → Boolean
engine/Source/Core/Rectangle.js 409

Compares the provided Rectangle with this Rectangle componentwise and returns true if they are equal, false otherwise.
Name Type Description
other Rectangle optional The Rectangle to compare.
Returns:
true if the Rectangles are equal, false otherwise.

equalsEpsilon(other, epsilon) → Boolean
engine/Source/Core/Rectangle.js 442

Compares the provided Rectangle with this Rectangle componentwise and returns true if they are within the provided epsilon, false otherwise.
Name Type Default Description
other Rectangle optional The Rectangle to compare.
epsilon Number 0 optional The epsilon to use for equality testing.
Returns:
true if the Rectangles are within the provided epsilon, false otherwise.
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