Cartesian4
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new Cesium.Cartesian4(x, y, z, w)
engine/Source/Core/Cartesian4.js 21

A 4D 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.
z number 0.0 可选 The Z component.
w number 0.0 可选 The W component.
参考:

成员(属性)

w : number
engine/Source/Core/Cartesian4.js 48

The W component.
默认值: 0.0

x : number
engine/Source/Core/Cartesian4.js 27

The X component.
默认值: 0.0

y : number
engine/Source/Core/Cartesian4.js 34

The Y component.
默认值: 0.0

z : number
engine/Source/Core/Cartesian4.js 41

The Z component.
默认值: 0.0

static constant Cesium.Cartesian4.ONE : Cartesian4
engine/Source/Core/Cartesian4.js 824

An immutable Cartesian4 instance initialized to (1.0, 1.0, 1.0, 1.0).

static Cesium.Cartesian4.packedLength : number
engine/Source/Core/Cartesian4.js 123

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

static constant Cesium.Cartesian4.UNIT_W : Cartesian4
engine/Source/Core/Cartesian4.js 856

An immutable Cartesian4 instance initialized to (0.0, 0.0, 0.0, 1.0).

static constant Cesium.Cartesian4.UNIT_X : Cartesian4
engine/Source/Core/Cartesian4.js 832

An immutable Cartesian4 instance initialized to (1.0, 0.0, 0.0, 0.0).

static constant Cesium.Cartesian4.UNIT_Y : Cartesian4
engine/Source/Core/Cartesian4.js 840

An immutable Cartesian4 instance initialized to (0.0, 1.0, 0.0, 0.0).

static constant Cesium.Cartesian4.UNIT_Z : Cartesian4
engine/Source/Core/Cartesian4.js 848

An immutable Cartesian4 instance initialized to (0.0, 0.0, 1.0, 0.0).

static constant Cesium.Cartesian4.ZERO : Cartesian4
engine/Source/Core/Cartesian4.js 816

An immutable Cartesian4 instance initialized to (0.0, 0.0, 0.0, 0.0).

方法

clone(result) → Cartesian4
engine/Source/Core/Cartesian4.js 864

Duplicates this Cartesian4 instance.
参数名称 类型 描述信息
result Cartesian4 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian4 instance if one was not provided.

equals(right) → boolean
engine/Source/Core/Cartesian4.js 875

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 Cartesian4 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/Cartesian4.js 889

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 Cartesian4 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/Cartesian4.js 907

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

static Cesium.Cartesian4.abs(cartesian, result) → Cartesian4
engine/Source/Core/Cartesian4.js 650

Computes the absolute value of the provided Cartesian.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian whose absolute value is to be computed.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.add(left, right, result) → Cartesian4
engine/Source/Core/Cartesian4.js 543

Computes the componentwise sum of two Cartesians.
参数名称 类型 描述信息
left Cartesian4 The first Cartesian.
right Cartesian4 The second Cartesian.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.clamp(value, min, max, result) → Cartesian4
engine/Source/Core/Cartesian4.js 340

Constrain a value to lie between two values.
参数名称 类型 描述信息
value Cartesian4 The value to clamp.
min Cartesian4 The minimum bound.
max Cartesian4 The maximum bound.
result Cartesian4 The object into which to store the result.
返回值:
The clamped value such that min <= result <= max.

static Cesium.Cartesian4.clone(cartesian, result) → Cartesian4
engine/Source/Core/Cartesian4.js 103

Duplicates a Cartesian4 instance.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian to duplicate.
result Cartesian4 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian4 instance if one was not provided. (Returns undefined if cartesian is undefined)

static Cesium.Cartesian4.distance(left, right) → number
engine/Source/Core/Cartesian4.js 405

Computes the 4-space distance between two points.
参数名称 类型 描述信息
left Cartesian4 The first point to compute the distance from.
right Cartesian4 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.Cartesian4.distance(
  new Cesium.Cartesian4(1.0, 0.0, 0.0, 0.0),
  new Cesium.Cartesian4(2.0, 0.0, 0.0, 0.0));

static Cesium.Cartesian4.distanceSquared(left, right) → number
engine/Source/Core/Cartesian4.js 429

Computes the squared distance between two points. Comparing squared distances using this function is more efficient than comparing distances using Cartesian4#distance.
参数名称 类型 描述信息
left Cartesian4 The first point to compute the distance from.
right Cartesian4 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.Cartesian4.distance(
  new Cesium.Cartesian4(1.0, 0.0, 0.0, 0.0),
  new Cesium.Cartesian4(3.0, 0.0, 0.0, 0.0));

static Cesium.Cartesian4.divideByScalar(cartesian, scalar, result) → Cartesian4
engine/Source/Core/Cartesian4.js 609

Divides the provided Cartesian componentwise by the provided scalar.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian to be divided.
scalar number The scalar to divide by.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.divideComponents(left, right, result) → Cartesian4
engine/Source/Core/Cartesian4.js 521

Computes the componentwise quotient of two Cartesians.
参数名称 类型 描述信息
left Cartesian4 The first Cartesian.
right Cartesian4 The second Cartesian.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.dot(left, right) → number
engine/Source/Core/Cartesian4.js 480

Computes the dot (scalar) product of two Cartesians.
参数名称 类型 描述信息
left Cartesian4 The first Cartesian.
right Cartesian4 The second Cartesian.
返回值:
The dot product.

static Cesium.Cartesian4.equals(left, right) → boolean
engine/Source/Core/Cartesian4.js 738

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 Cartesian4 可选 The first Cartesian.
right Cartesian4 可选 The second Cartesian.
返回值:
true if left and right are equal, false otherwise.

static Cesium.Cartesian4.equalsEpsilon(left, right, relativeEpsilon, absoluteEpsilon) → boolean
engine/Source/Core/Cartesian4.js 773

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 Cartesian4 可选 The first Cartesian.
right Cartesian4 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.Cartesian4.fromArray(array, startingIndex, result) → Cartesian4
engine/Source/Core/Cartesian4.js 255

Creates a Cartesian4 from four consecutive elements in an array.
参数名称 类型 默认值 描述信息
array Array.<number> The array whose four consecutive elements correspond to the x, y, z, and w components, respectively.
startingIndex number 0 可选 The offset into the array of the first element, which corresponds to the x component.
result Cartesian4 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian4 instance if one was not provided.
使用示例:
// Create a Cartesian4 with (1.0, 2.0, 3.0, 4.0)
const v = [1.0, 2.0, 3.0, 4.0];
const p = Cesium.Cartesian4.fromArray(v);

// Create a Cartesian4 with (1.0, 2.0, 3.0, 4.0) using an offset into an array
const v2 = [0.0, 0.0, 1.0, 2.0, 3.0, 4.0];
const p2 = Cesium.Cartesian4.fromArray(v2, 2);

static Cesium.Cartesian4.fromColor(color, result) → Cartesian4
engine/Source/Core/Cartesian4.js 81

Creates a Cartesian4 instance from a Color. red, green, blue, and alpha map to x, y, z, and w, respectively.
参数名称 类型 描述信息
color Color The source color.
result Cartesian4 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian4 instance if one was not provided.

static Cesium.Cartesian4.fromElements(x, y, z, w, result) → Cartesian4
engine/Source/Core/Cartesian4.js 61

Creates a Cartesian4 instance from x, y, z and w coordinates.
参数名称 类型 描述信息
x number The x coordinate.
y number The y coordinate.
z number The z coordinate.
w number The w coordinate.
result Cartesian4 可选 The object onto which to store the result.
返回值:
The modified result parameter or a new Cartesian4 instance if one was not provided.

static Cesium.Cartesian4.lerp(start, end, t, result) → Cartesian4
engine/Source/Core/Cartesian4.js 673

Computes the linear interpolation or extrapolation at t using the provided cartesians.
参数名称 类型 描述信息
start Cartesian4 The value corresponding to t at 0.0.
end Cartesian4 The value corresponding to t at 1.0.
t number The point along t at which to interpolate.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.magnitude(cartesian) → number
engine/Source/Core/Cartesian4.js 386

Computes the Cartesian's magnitude (length).
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian instance whose magnitude is to be computed.
返回值:
The magnitude.

static Cesium.Cartesian4.magnitudeSquared(cartesian) → number
engine/Source/Core/Cartesian4.js 367

Computes the provided Cartesian's squared magnitude.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian instance whose squared magnitude is to be computed.
返回值:
The squared magnitude.

static Cesium.Cartesian4.maximumByComponent(first, second, result) → Cartesian4
engine/Source/Core/Cartesian4.js 316

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 Cartesian4 A cartesian to compare.
second Cartesian4 A cartesian to compare.
result Cartesian4 The object into which to store the result.
返回值:
A cartesian with the maximum components.

static Cesium.Cartesian4.maximumComponent(cartesian) → number
engine/Source/Core/Cartesian4.js 263

Computes the value of the maximum component for the supplied Cartesian.
参数名称 类型 描述信息
cartesian Cartesian4 The cartesian to use.
返回值:
The value of the maximum component.

static Cesium.Cartesian4.minimumByComponent(first, second, result) → Cartesian4
engine/Source/Core/Cartesian4.js 293

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 Cartesian4 A cartesian to compare.
second Cartesian4 A cartesian to compare.
result Cartesian4 The object into which to store the result.
返回值:
A cartesian with the minimum components.

static Cesium.Cartesian4.minimumComponent(cartesian) → number
engine/Source/Core/Cartesian4.js 277

Computes the value of the minimum component for the supplied Cartesian.
参数名称 类型 描述信息
cartesian Cartesian4 The cartesian to use.
返回值:
The value of the minimum component.

static Cesium.Cartesian4.mostOrthogonalAxis(cartesian, result) → Cartesian4
engine/Source/Core/Cartesian4.js 694

Returns the axis that is most orthogonal to the provided Cartesian.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian on which to find the most orthogonal axis.
result Cartesian4 The object onto which to store the result.
返回值:
The most orthogonal axis.

static Cesium.Cartesian4.multiplyByScalar(cartesian, scalar, result) → Cartesian4
engine/Source/Core/Cartesian4.js 587

Multiplies the provided Cartesian componentwise by the provided scalar.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian to be scaled.
scalar number The scalar to multiply with.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.multiplyComponents(left, right, result) → Cartesian4
engine/Source/Core/Cartesian4.js 499

Computes the componentwise product of two Cartesians.
参数名称 类型 描述信息
left Cartesian4 The first Cartesian.
right Cartesian4 The second Cartesian.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.negate(cartesian, result) → Cartesian4
engine/Source/Core/Cartesian4.js 630

Negates the provided Cartesian.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian to be negated.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.normalize(cartesian, result) → Cartesian4
engine/Source/Core/Cartesian4.js 446

Computes the normalized form of the supplied Cartesian.
参数名称 类型 描述信息
cartesian Cartesian4 The Cartesian to be normalized.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.pack(value, array, startingIndex) → Array.<number>
engine/Source/Core/Cartesian4.js 134

Stores the provided instance into the provided array.
参数名称 类型 默认值 描述信息
value Cartesian4 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.Cartesian4.packArray(array, result) → Array.<number>
engine/Source/Core/Cartesian4.js 182

Flattens an array of Cartesian4s into an array of components.
参数名称 类型 描述信息
array Array.<Cartesian4> 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 * 4 components, else a DeveloperError will be thrown. If it is a regular array, it will be resized to have (array.length * 4) elements.
返回值:
The packed array.

static Cesium.Cartesian4.packFloat(value, result) → Cartesian4
engine/Source/Core/Cartesian4.js 926

Packs an arbitrary floating point value to 4 values representable using uint8.
参数名称 类型 描述信息
value number A floating point number.
result Cartesian4 可选 The Cartesian4 that will contain the packed float.
返回值:
A Cartesian4 representing the float packed to values in x, y, z, and w.

static Cesium.Cartesian4.subtract(left, right, result) → Cartesian4
engine/Source/Core/Cartesian4.js 565

Computes the componentwise difference of two Cartesians.
参数名称 类型 描述信息
left Cartesian4 The first Cartesian.
right Cartesian4 The second Cartesian.
result Cartesian4 The object onto which to store the result.
返回值:
The modified result parameter.

static Cesium.Cartesian4.unpack(array, startingIndex, result) → Cartesian4
engine/Source/Core/Cartesian4.js 158

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 Cartesian4 可选 The object into which to store the result.
返回值:
The modified result parameter or a new Cartesian4 instance if one was not provided.

static Cesium.Cartesian4.unpackArray(array, result) → Array.<Cartesian4>
engine/Source/Core/Cartesian4.js 214

Unpacks an array of cartesian components into an array of Cartesian4s.
参数名称 类型 描述信息
array Array.<number> The array of components to unpack.
result Array.<Cartesian4> 可选 The array onto which to store the result.
返回值:
The unpacked array.
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