Cartesian2

Members

x : Number

Core/Cartesian2.js 34

The X component.

Default Value: 0.0

y : Number

Core/Cartesian2.js 41

The Y component.

Default Value: 0.0

staticCesium.Cartesian2.packedLength : Number

Core/Cartesian2.js 108

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

staticconstantCesium.Cartesian2.UNIT_X : Cartesian2

Core/Cartesian2.js 697

An immutable Cartesian2 instance initialized to (1.0, 0.0).

staticconstantCesium.Cartesian2.UNIT_Y : Cartesian2

Core/Cartesian2.js 705

An immutable Cartesian2 instance initialized to (0.0, 1.0).

staticconstantCesium.Cartesian2.ZERO : Cartesian2

Core/Cartesian2.js 689

An immutable Cartesian2 instance initialized to (0.0, 0.0).

Methods

clone(result) → Cartesian2

Core/Cartesian2.js 713

Duplicates this Cartesian2 instance.

Name	Type	Description
result	Cartesian2	optional The object onto which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided.

equals(right) → Boolean

Core/Cartesian2.js 724

Compares this Cartesian against the provided Cartesian componentwise and returns true if they are equal, false otherwise.

Name	Type	Description
right	Cartesian2	optional The right hand side Cartesian.

Returns:

true if they are equal, false otherwise.

equalsEpsilon(right, relativeEpsilon, absoluteEpsilon) → Boolean

Core/Cartesian2.js 738

Compares this Cartesian against the provided Cartesian componentwise and returns true if they pass an absolute or relative tolerance test, false otherwise.

Name	Type	Default	Description
right	Cartesian2		optional The right hand side Cartesian.
relativeEpsilon	Number		The relative epsilon tolerance to use for equality testing.
absoluteEpsilon	Number	relativeEpsilon	optional The absolute epsilon tolerance to use for equality testing.

Returns:

true if they are within the provided epsilon, false otherwise.

toString() → String

Core/Cartesian2.js 747

Creates a string representing this Cartesian in the format '(x, y)'.

Returns:

A string representing the provided Cartesian in the format '(x, y)'.

staticCesium.Cartesian2.abs(cartesian, result) → Cartesian2

Core/Cartesian2.js 540

Computes the absolute value of the provided Cartesian.

Name	Type	Description
cartesian	Cartesian2	The Cartesian whose absolute value is to be computed.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.add(left, right, result) → Cartesian2

Core/Cartesian2.js 415

Computes the componentwise sum of two Cartesians.

Name	Type	Description
left	Cartesian2	The first Cartesian.
right	Cartesian2	The second Cartesian.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.angleBetween(left, right) → Number

Core/Cartesian2.js 595

Returns the angle, in radians, between the provided Cartesians.

Name	Type	Description
left	Cartesian2	The first Cartesian.
right	Cartesian2	The second Cartesian.

Returns:

The angle between the Cartesians.

staticCesium.Cartesian2.clone(cartesian, result) → Cartesian2

Core/Cartesian2.js 69

Duplicates a Cartesian2 instance.

Name	Type	Description
cartesian	Cartesian2	The Cartesian to duplicate.
result	Cartesian2	optional The object onto which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided. (Returns undefined if cartesian is undefined)

staticCesium.Cartesian2.distance(left, right) → Number

Core/Cartesian2.js 303

Computes the distance between two points.

Name	Type	Description
left	Cartesian2	The first point to compute the distance from.
right	Cartesian2	The second point to compute the distance to.

Returns:

The distance between two points.

Example:

// Returns 1.0
var d = Cesium.Cartesian2.distance(new Cesium.Cartesian2(1.0, 0.0), new Cesium.Cartesian2(2.0, 0.0));

staticCesium.Cartesian2.distanceSquared(left, right) → Number

Core/Cartesian2.js 326

Computes the squared distance between two points. Comparing squared distances using this function is more efficient than comparing distances using Cartesian2#distance.

Name	Type	Description
left	Cartesian2	The first point to compute the distance from.
right	Cartesian2	The second point to compute the distance to.

Returns:

The distance between two points.

Example:

// Returns 4.0, not 2.0
var d = Cesium.Cartesian2.distance(new Cesium.Cartesian2(1.0, 0.0), new Cesium.Cartesian2(3.0, 0.0));

staticCesium.Cartesian2.divideByScalar(cartesian, scalar, result) → Cartesian2

Core/Cartesian2.js 493

Divides the provided Cartesian componentwise by the provided scalar.

Name	Type	Description
cartesian	Cartesian2	The Cartesian to be divided.
scalar	Number	The scalar to divide by.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.dot(left, right) → Number

Core/Cartesian2.js 368

Computes the dot (scalar) product of two Cartesians.

Name	Type	Description
left	Cartesian2	The first Cartesian.
right	Cartesian2	The second Cartesian.

Returns:

The dot product.

staticCesium.Cartesian2.equals(left, right) → Boolean

Core/Cartesian2.js 648

Compares the provided Cartesians componentwise and returns true if they are equal, false otherwise.

Name	Type	Description
left	Cartesian2	optional The first Cartesian.
right	Cartesian2	optional The second Cartesian.

Returns:

true if left and right are equal, false otherwise.

staticCesium.Cartesian2.equalsEpsilon(left, right, relativeEpsilon, absoluteEpsilon) → Boolean

Core/Cartesian2.js 675

Compares the provided Cartesians componentwise and returns true if they pass an absolute or relative tolerance test, false otherwise.

Name	Type	Default	Description
left	Cartesian2		optional The first Cartesian.
right	Cartesian2		optional The second Cartesian.
relativeEpsilon	Number		The relative epsilon tolerance to use for equality testing.
absoluteEpsilon	Number	relativeEpsilon	optional The absolute epsilon tolerance to use for equality testing.

Returns:

true if left and right are within the provided epsilon, false otherwise.

staticCesium.Cartesian2.fromArray(array, startingIndex, result) → Cartesian2

Core/Cartesian2.js 176

Creates a Cartesian2 from two consecutive elements in an array.

Name	Type	Default	Description
array	Array.<Number>		The array whose two consecutive elements correspond to the x and y components, respectively.
startingIndex	Number	0	optional The offset into the array of the first element, which corresponds to the x component.
result	Cartesian2		optional The object onto which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided.

Example:

// Create a Cartesian2 with (1.0, 2.0)
var v = [1.0, 2.0];
var p = Cesium.Cartesian2.fromArray(v);

// Create a Cartesian2 with (1.0, 2.0) using an offset into an array
var v2 = [0.0, 0.0, 1.0, 2.0];
var p2 = Cesium.Cartesian2.fromArray(v2, 2);

staticCesium.Cartesian2.fromCartesian3(cartesian, result) → Cartesian2

Core/Cartesian2.js 91

Creates a Cartesian2 instance from an existing Cartesian3. This simply takes the x and y properties of the Cartesian3 and drops z.

Name	Type	Description
cartesian	Cartesian3	The Cartesian3 instance to create a Cartesian2 instance from.
result	Cartesian2	optional The object onto which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided.

staticCesium.Cartesian2.fromCartesian4(cartesian, result) → Cartesian2

Core/Cartesian2.js 102

Creates a Cartesian2 instance from an existing Cartesian4. This simply takes the x and y properties of the Cartesian4 and drops z and w.

Name	Type	Description
cartesian	Cartesian4	The Cartesian4 instance to create a Cartesian2 instance from.
result	Cartesian2	optional The object onto which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided.

staticCesium.Cartesian2.fromElements(x, y, result) → Cartesian2

Core/Cartesian2.js 52

Creates a Cartesian2 instance from x and y coordinates.

Name	Type	Description
x	Number	The x coordinate.
y	Number	The y coordinate.
result	Cartesian2	optional The object onto which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided.

staticCesium.Cartesian2.lerp(start, end, t, result) → Cartesian2

Core/Cartesian2.js 565

Computes the linear interpolation or extrapolation at t using the provided cartesians.

Name	Type	Description
start	Cartesian2	The value corresponding to t at 0.0.
end	Cartesian2	The value corresponding to t at 1.0.
t	Number	The point along t at which to interpolate.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.magnitude(cartesian) → Number

Core/Cartesian2.js 286

Computes the Cartesian's magnitude (length).

Name	Type	Description
cartesian	Cartesian2	The Cartesian instance whose magnitude is to be computed.

Returns:

The magnitude.

staticCesium.Cartesian2.magnitudeSquared(cartesian) → Number

Core/Cartesian2.js 270

Computes the provided Cartesian's squared magnitude.

Name	Type	Description
cartesian	Cartesian2	The Cartesian instance whose squared magnitude is to be computed.

Returns:

The squared magnitude.

staticCesium.Cartesian2.maximumByComponent(first, second, result) → Cartesian2

Core/Cartesian2.js 246

Compares two Cartesians and computes a Cartesian which contains the maximum components of the supplied Cartesians.

Name	Type	Description
first	Cartesian2	A cartesian to compare.
second	Cartesian2	A cartesian to compare.
result	Cartesian2	The object into which to store the result.

Returns:

A cartesian with the maximum components.

staticCesium.Cartesian2.maximumComponent(cartesian) → Number

Core/Cartesian2.js 184

Computes the value of the maximum component for the supplied Cartesian.

Name	Type	Description
cartesian	Cartesian2	The cartesian to use.

Returns:

The value of the maximum component.

staticCesium.Cartesian2.minimumByComponent(first, second, result) → Cartesian2

Core/Cartesian2.js 218

Compares two Cartesians and computes a Cartesian which contains the minimum components of the supplied Cartesians.

Name	Type	Description
first	Cartesian2	A cartesian to compare.
second	Cartesian2	A cartesian to compare.
result	Cartesian2	The object into which to store the result.

Returns:

A cartesian with the minimum components.

staticCesium.Cartesian2.minimumComponent(cartesian) → Number

Core/Cartesian2.js 200

Computes the value of the minimum component for the supplied Cartesian.

Name	Type	Description
cartesian	Cartesian2	The cartesian to use.

Returns:

The value of the minimum component.

staticCesium.Cartesian2.mostOrthogonalAxis(cartesian, result) → Cartesian2

Core/Cartesian2.js 618

Returns the axis that is most orthogonal to the provided Cartesian.

Name	Type	Description
cartesian	Cartesian2	The Cartesian on which to find the most orthogonal axis.
result	Cartesian2	The object onto which to store the result.

Returns:

The most orthogonal axis.

staticCesium.Cartesian2.multiplyByScalar(cartesian, scalar, result) → Cartesian2

Core/Cartesian2.js 467

Multiplies the provided Cartesian componentwise by the provided scalar.

Name	Type	Description
cartesian	Cartesian2	The Cartesian to be scaled.
scalar	Number	The scalar to multiply with.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.multiplyComponents(left, right, result) → Cartesian2

Core/Cartesian2.js 389

Computes the componentwise product of two Cartesians.

Name	Type	Description
left	Cartesian2	The first Cartesian.
right	Cartesian2	The second Cartesian.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.negate(cartesian, result) → Cartesian2

Core/Cartesian2.js 518

Negates the provided Cartesian.

Name	Type	Description
cartesian	Cartesian2	The Cartesian to be negated.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.normalize(cartesian, result) → Cartesian2

Core/Cartesian2.js 344

Computes the normalized form of the supplied Cartesian.

Name	Type	Description
cartesian	Cartesian2	The Cartesian to be normalized.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.pack(value, array, startingIndex)

Core/Cartesian2.js 117

Stores the provided instance into the provided array.

Name	Type	Default	Description
value	Cartesian2		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.

staticCesium.Cartesian2.subtract(left, right, result) → Cartesian2

Core/Cartesian2.js 441

Computes the componentwise difference of two Cartesians.

Name	Type	Description
left	Cartesian2	The first Cartesian.
right	Cartesian2	The second Cartesian.
result	Cartesian2	The object onto which to store the result.

Returns:

The modified result parameter.

staticCesium.Cartesian2.unpack(array, startingIndex, result) → Cartesian2

Core/Cartesian2.js 141

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	Cartesian2		optional The object into which to store the result.

Returns:

The modified result parameter or a new Cartesian2 instance if one was not provided.