WallOutlineGeometry

new Cesium.WallOutlineGeometry(options)
engine/Source/Core/WallOutlineGeometry.js 55

A description of a wall outline. A wall is defined by a series of points, which extrude down to the ground. Optionally, they can extrude downwards to a specified height.
Name Type Description
options object Object with the following properties:
Name Type Default Description
positions Array.<Cartesian3> An array of Cartesian objects, which are the points of the wall.
granularity number CesiumMath.RADIANS_PER_DEGREE optional The distance, in radians, between each latitude and longitude. Determines the number of positions in the buffer.
maximumHeights Array.<number> optional An array parallel to positions that give the maximum height of the wall at positions. If undefined, the height of each position in used.
minimumHeights Array.<number> optional An array parallel to positions that give the minimum height of the wall at positions. If undefined, the height at each position is 0.0.
ellipsoid Ellipsoid Ellipsoid.default optional The ellipsoid for coordinate manipulation
Throws:
  • DeveloperError : positions length must be greater than or equal to 2.
  • DeveloperError : positions and maximumHeights must have the same length.
  • DeveloperError : positions and minimumHeights must have the same length.
Example:
// create a wall outline that spans from ground level to 10000 meters
const wall = new Cesium.WallOutlineGeometry({
  positions : Cesium.Cartesian3.fromDegreesArrayHeights([
    19.0, 47.0, 10000.0,
    19.0, 48.0, 10000.0,
    20.0, 48.0, 10000.0,
    20.0, 47.0, 10000.0,
    19.0, 47.0, 10000.0
  ])
});
const geometry = Cesium.WallOutlineGeometry.createGeometry(wall);
See:
  • WallGeometry#createGeometry
  • WallGeometry#fromConstantHeight

Members

packedLength : number
engine/Source/Core/WallOutlineGeometry.js 109

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

Methods

static Cesium.WallOutlineGeometry.createGeometry(wallGeometry) → Geometry|undefined
engine/Source/Core/WallOutlineGeometry.js 328

Computes the geometric representation of a wall outline, including its vertices, indices, and a bounding sphere.
Name Type Description
wallGeometry WallOutlineGeometry A description of the wall outline.
Returns:
The computed vertices and indices.

static Cesium.WallOutlineGeometry.fromConstantHeights(options) → WallOutlineGeometry
engine/Source/Core/WallOutlineGeometry.js 279

A description of a walloutline. A wall is defined by a series of points, which extrude down to the ground. Optionally, they can extrude downwards to a specified height.
Name Type Description
options object Object with the following properties:
Name Type Default Description
positions Array.<Cartesian3> An array of Cartesian objects, which are the points of the wall.
maximumHeight number optional A constant that defines the maximum height of the wall at positions. If undefined, the height of each position in used.
minimumHeight number optional A constant that defines the minimum height of the wall at positions. If undefined, the height at each position is 0.0.
ellipsoid Ellipsoid Ellipsoid.default optional The ellipsoid for coordinate manipulation
Returns:
Example:
// create a wall that spans from 10000 meters to 20000 meters
const wall = Cesium.WallOutlineGeometry.fromConstantHeights({
  positions : Cesium.Cartesian3.fromDegreesArray([
    19.0, 47.0,
    19.0, 48.0,
    20.0, 48.0,
    20.0, 47.0,
    19.0, 47.0,
  ]),
  minimumHeight : 20000.0,
  maximumHeight : 10000.0
});
const geometry = Cesium.WallOutlineGeometry.createGeometry(wall);
See:
  • WallOutlineGeometry#createGeometry

static Cesium.WallOutlineGeometry.pack(value, array, startingIndex) → Array.<number>
engine/Source/Core/WallOutlineGeometry.js 121

Stores the provided instance into the provided array.
Name Type Default Description
value WallOutlineGeometry 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.WallOutlineGeometry.unpack(array, startingIndex, result) → WallOutlineGeometry
engine/Source/Core/WallOutlineGeometry.js 188

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 WallOutlineGeometry optional The object into which to store the result.
Returns:
The modified result parameter or a new WallOutlineGeometry instance if one was not provided.
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