Cartesian2
查阅Mars3D API

new Cesium.Cartesian2(x, y)
engine/Source/Core/Cartesian2.js 19

A 2D Cartesian point.
参数名称 类型 默认值 描述信息
x number 0.0 可选 The X component.
y number 0.0 可选 The Y component.
参考:

成员(属性)

x : number
engine/Source/Core/Cartesian2.js 25

The X component.
默认值: 0.0

y : number
engine/Source/Core/Cartesian2.js 32

The Y component.
默认值: 0.0

static constant Cesium.Cartesian2.ONE : Cartesian2
engine/Source/Core/Cartesian2.js 754

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

static Cesium.Cartesian2.packedLength : number
engine/Source/Core/Cartesian2.js 99

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

static constant Cesium.Cartesian2.UNIT_X : Cartesian2
engine/Source/Core/Cartesian2.js 762

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

static constant Cesium.Cartesian2.UNIT_Y : Cartesian2
engine/Source/Core/Cartesian2.js 770

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

static constant Cesium.Cartesian2.ZERO : Cartesian2
engine/Source/Core/Cartesian2.js 746

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

方法

clone(result) → Cartesian2
engine/Source/Core/Cartesian2.js 778

Duplicates this Cartesian2 instance.
参数名称 类型 描述信息
result Cartesian2 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided.

equals(right) → boolean
engine/Source/Core/Cartesian2.js 789

Compares this Cartesian against the provided Cartesian componentwise and returns true if they are equal, false otherwise.
参数名称 类型 描述信息
right Cartesian2 可选 The right hand side Cartesian.
返回值:
true if they are equal, false otherwise.

equalsEpsilon(right, relativeEpsilon, absoluteEpsilon) → boolean
engine/Source/Core/Cartesian2.js 803

Compares this Cartesian against the provided Cartesian componentwise and returns true if they pass an absolute or relative tolerance test, false otherwise.
参数名称 类型 默认值 描述信息
right Cartesian2 可选 The right hand side Cartesian.
relativeEpsilon number 0 可选 The relative epsilon tolerance to use for equality testing.
absoluteEpsilon number relativeEpsilon 可选 The absolute epsilon tolerance to use for equality testing.
返回值:
true if they are within the provided epsilon, false otherwise.

toString() → string
engine/Source/Core/Cartesian2.js 821

Creates a string representing this Cartesian in the format '(x, y)'.
返回值:
A string representing the provided Cartesian in the format '(x, y)'.

static Cesium.Cartesian2.abs(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 597

Computes the absolute value of the provided Cartesian.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian whose absolute value is to be computed.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.add(left, right, result) → Cartesian2
engine/Source/Core/Cartesian2.js 500

Computes the componentwise sum of two Cartesians.
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.angleBetween(left, right) → number
engine/Source/Core/Cartesian2.js 640

Returns the angle, in radians, between the provided Cartesians.
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
返回值:
The angle between the Cartesians.

static Cesium.Cartesian2.clamp(value, min, max, result) → Cartesian2
engine/Source/Core/Cartesian2.js 307

Constrain a value to lie between two values.
参数名称 类型 描述信息
value Cartesian2 The value to clamp.
min Cartesian2 The minimum bound.
max Cartesian2 The maximum bound.
result Cartesian2 The object into which to store the result.
返回值:
The clamped value such that min <= result <= max.

static Cesium.Cartesian2.clone(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 60

Duplicates a Cartesian2 instance.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian to duplicate.
result Cartesian2 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided. (Returns undefined if cartesian is undefined)

static Cesium.Cartesian2.cross(left, right) → number
engine/Source/Core/Cartesian2.js 443

Computes the magnitude of the cross product that would result from implicitly setting the Z coordinate of the input vectors to 0
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
返回值:
The cross product.

static Cesium.Cartesian2.distance(left, right) → number
engine/Source/Core/Cartesian2.js 361

Computes the distance between two points.
参数名称 类型 描述信息
left Cartesian2 The first point to compute the distance from.
right Cartesian2 The second point to compute the distance to.
返回值:
The distance between two points.
使用示例:
// Returns 1.0
const d = Cesium.Cartesian2.distance(new Cesium.Cartesian2(1.0, 0.0), new Cesium.Cartesian2(2.0, 0.0));

static Cesium.Cartesian2.distanceSquared(left, right) → number
engine/Source/Core/Cartesian2.js 383

Computes the squared distance between two points. Comparing squared distances using this function is more efficient than comparing distances using Cartesian2#distance.
参数名称 类型 描述信息
left Cartesian2 The first point to compute the distance from.
right Cartesian2 The second point to compute the distance to.
返回值:
The distance between two points.
使用示例:
// Returns 4.0, not 2.0
const d = Cesium.Cartesian2.distance(new Cesium.Cartesian2(1.0, 0.0), new Cesium.Cartesian2(3.0, 0.0));

static Cesium.Cartesian2.divideByScalar(cartesian, scalar, result) → Cartesian2
engine/Source/Core/Cartesian2.js 560

Divides the provided Cartesian componentwise by the provided scalar.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian to be divided.
scalar number The scalar to divide by.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.divideComponents(left, right, result) → Cartesian2
engine/Source/Core/Cartesian2.js 480

Computes the componentwise quotient of two Cartesians.
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.dot(left, right) → number
engine/Source/Core/Cartesian2.js 427

Computes the dot (scalar) product of two Cartesians.
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
返回值:
The dot product.

static Cesium.Cartesian2.equals(left, right) → boolean
engine/Source/Core/Cartesian2.js 687

Compares the provided Cartesians componentwise and returns true if they are equal, false otherwise.
参数名称 类型 描述信息
left Cartesian2 可选 The first Cartesian.
right Cartesian2 可选 The second Cartesian.
返回值:
true if left and right are equal, false otherwise.

static Cesium.Cartesian2.equalsEpsilon(left, right, relativeEpsilon, absoluteEpsilon) → boolean
engine/Source/Core/Cartesian2.js 715

Compares the provided Cartesians componentwise and returns true if they pass an absolute or relative tolerance test, false otherwise.
参数名称 类型 默认值 描述信息
left Cartesian2 可选 The first Cartesian.
right Cartesian2 可选 The second Cartesian.
relativeEpsilon number 0 可选 The relative epsilon tolerance to use for equality testing.
absoluteEpsilon number relativeEpsilon 可选 The absolute epsilon tolerance to use for equality testing.
返回值:
true if left and right are within the provided epsilon, false otherwise.

static Cesium.Cartesian2.fromArray(array, startingIndex, result) → Cartesian2
engine/Source/Core/Cartesian2.js 227

Creates a Cartesian2 from two consecutive elements in an array.
参数名称 类型 默认值 描述信息
array Array.<number> The array whose two consecutive elements correspond to the x and y components, respectively.
startingIndex number 0 可选 The offset into the array of the first element, which corresponds to the x component.
result Cartesian2 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided.
使用示例:
// Create a Cartesian2 with (1.0, 2.0)
const v = [1.0, 2.0];
const p = Cesium.Cartesian2.fromArray(v);

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

static Cesium.Cartesian2.fromCartesian3(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 82

Creates a Cartesian2 instance from an existing Cartesian3. This simply takes the x and y properties of the Cartesian3 and drops z.
参数名称 类型 描述信息
cartesian Cartesian3 The Cartesian3 instance to create a Cartesian2 instance from.
result Cartesian2 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided.

static Cesium.Cartesian2.fromCartesian4(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 93

Creates a Cartesian2 instance from an existing Cartesian4. This simply takes the x and y properties of the Cartesian4 and drops z and w.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian4 instance to create a Cartesian2 instance from.
result Cartesian2 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided.

static Cesium.Cartesian2.fromElements(x, y, result) → Cartesian2
engine/Source/Core/Cartesian2.js 43

Creates a Cartesian2 instance from x and y coordinates.
参数名称 类型 描述信息
x number The x coordinate.
y number The y coordinate.
result Cartesian2 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided.

static Cesium.Cartesian2.lerp(start, end, t, result) → Cartesian2
engine/Source/Core/Cartesian2.js 618

Computes the linear interpolation or extrapolation at t using the provided cartesians.
参数名称 类型 描述信息
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.
返回值:
The modified result parameter.

static Cesium.Cartesian2.magnitude(cartesian) → number
engine/Source/Core/Cartesian2.js 344

Computes the Cartesian's magnitude (length).
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian instance whose magnitude is to be computed.
返回值:
The magnitude.

static Cesium.Cartesian2.magnitudeSquared(cartesian) → number
engine/Source/Core/Cartesian2.js 330

Computes the provided Cartesian's squared magnitude.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian instance whose squared magnitude is to be computed.
返回值:
The squared magnitude.

static Cesium.Cartesian2.maximumByComponent(first, second, result) → Cartesian2
engine/Source/Core/Cartesian2.js 286

Compares two Cartesians and computes a Cartesian which contains the maximum components of the supplied Cartesians.
参数名称 类型 描述信息
first Cartesian2 A cartesian to compare.
second Cartesian2 A cartesian to compare.
result Cartesian2 The object into which to store the result.
返回值:
A cartesian with the maximum components.

static Cesium.Cartesian2.maximumComponent(cartesian) → number
engine/Source/Core/Cartesian2.js 235

Computes the value of the maximum component for the supplied Cartesian.
参数名称 类型 描述信息
cartesian Cartesian2 The cartesian to use.
返回值:
The value of the maximum component.

static Cesium.Cartesian2.minimumByComponent(first, second, result) → Cartesian2
engine/Source/Core/Cartesian2.js 265

Compares two Cartesians and computes a Cartesian which contains the minimum components of the supplied Cartesians.
参数名称 类型 描述信息
first Cartesian2 A cartesian to compare.
second Cartesian2 A cartesian to compare.
result Cartesian2 The object into which to store the result.
返回值:
A cartesian with the minimum components.

static Cesium.Cartesian2.minimumComponent(cartesian) → number
engine/Source/Core/Cartesian2.js 249

Computes the value of the minimum component for the supplied Cartesian.
参数名称 类型 描述信息
cartesian Cartesian2 The cartesian to use.
返回值:
The value of the minimum component.

static Cesium.Cartesian2.mostOrthogonalAxis(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 661

Returns the axis that is most orthogonal to the provided Cartesian.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian on which to find the most orthogonal axis.
result Cartesian2 The object onto which to store the result.
返回值:
The most orthogonal axis.

static Cesium.Cartesian2.multiplyByScalar(cartesian, scalar, result) → Cartesian2
engine/Source/Core/Cartesian2.js 540

Multiplies the provided Cartesian componentwise by the provided scalar.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian to be scaled.
scalar number The scalar to multiply with.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.multiplyComponents(left, right, result) → Cartesian2
engine/Source/Core/Cartesian2.js 460

Computes the componentwise product of two Cartesians.
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.negate(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 579

Negates the provided Cartesian.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian to be negated.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.normalize(cartesian, result) → Cartesian2
engine/Source/Core/Cartesian2.js 400

Computes the normalized form of the supplied Cartesian.
参数名称 类型 描述信息
cartesian Cartesian2 The Cartesian to be normalized.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.pack(value, array, startingIndex) → Array.<number>
engine/Source/Core/Cartesian2.js 110

Stores the provided instance into the provided array.
参数名称 类型 默认值 描述信息
value Cartesian2 The value to pack.
array Array.<number> The array to pack into.
startingIndex number 0 可选 The index into the array at which to start packing the elements.
返回值:
The array that was packed into

static Cesium.Cartesian2.packArray(array, result) → Array.<number>
engine/Source/Core/Cartesian2.js 154

Flattens an array of Cartesian2s into an array of components.
参数名称 类型 描述信息
array Array.<Cartesian2> The array of cartesians to pack.
result Array.<number> 可选 The array onto which to store the result. If this is a typed array, it must have array.length * 2 components, else a DeveloperError will be thrown. If it is a regular array, it will be resized to have (array.length * 2) elements.
返回值:
The packed array.

static Cesium.Cartesian2.subtract(left, right, result) → Cartesian2
engine/Source/Core/Cartesian2.js 520

Computes the componentwise difference of two Cartesians.
参数名称 类型 描述信息
left Cartesian2 The first Cartesian.
right Cartesian2 The second Cartesian.
result Cartesian2 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian2.unpack(array, startingIndex, result) → Cartesian2
engine/Source/Core/Cartesian2.js 132

Retrieves an instance from a packed array.
参数名称 类型 默认值 描述信息
array Array.<number> The packed array.
startingIndex number 0 可选 The starting index of the element to be unpacked.
result Cartesian2 可选 The object into which to store the result.
返回值:
The modified result parameter or a new Cartesian2 instance if one was not provided.

static Cesium.Cartesian2.unpackArray(array, result) → Array.<Cartesian2>
engine/Source/Core/Cartesian2.js 186

Unpacks an array of cartesian components into an array of Cartesian2s.
参数名称 类型 描述信息
array Array.<number> The array of components to unpack.
result Array.<Cartesian2> 可选 The array onto which to store the result.
返回值:
The unpacked array.
packages/engine
packages/widgets