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import Cartesian3 from "./Cartesian3.js";
import Check from "./Check.js";
import ComponentDatatype from "./ComponentDatatype.js";
import Frozen from "./Frozen.js";
import defined from "./defined.js";
import DeveloperError from "./DeveloperError.js";
import Geometry from "./Geometry.js";
import GeometryAttribute from "./GeometryAttribute.js";
import GeometryAttributes from "./GeometryAttributes.js";
import GeometryOffsetAttribute from "./GeometryOffsetAttribute.js";
import PrimitiveType from "./PrimitiveType.js";
const diffScratch = new Cartesian3();
/**
* A description of the outline of a cube centered at the origin.
*
* @alias BoxOutlineGeometry
* @constructor
*
* @param {object} options Object with the following properties:
* @param {Cartesian3} options.minimum The minimum x, y, and z coordinates of the box.
* @param {Cartesian3} options.maximum The maximum x, y, and z coordinates of the box.
*
* @see BoxOutlineGeometry.fromDimensions
* @see BoxOutlineGeometry.createGeometry
* @see Packable
*
* @example
* const box = new Cesium.BoxOutlineGeometry({
* maximum : new Cesium.Cartesian3(250000.0, 250000.0, 250000.0),
* minimum : new Cesium.Cartesian3(-250000.0, -250000.0, -250000.0)
* });
* const geometry = Cesium.BoxOutlineGeometry.createGeometry(box);
*/
function BoxOutlineGeometry(options) {
options = options ?? Frozen.EMPTY_OBJECT;
const min = options.minimum;
const max = options.maximum;
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("min", min);
Check.typeOf.object("max", max);
Iif (
defined(options.offsetAttribute) &&
options.offsetAttribute === GeometryOffsetAttribute.TOP
) {
throw new DeveloperError(
"GeometryOffsetAttribute.TOP is not a supported options.offsetAttribute for this geometry.",
);
}
//>>includeEnd('debug');
this._min = Cartesian3.clone(min);
this._max = Cartesian3.clone(max);
this._offsetAttribute = options.offsetAttribute;
this._workerName = "createBoxOutlineGeometry";
}
/**
* Creates an outline of a cube centered at the origin given its dimensions.
*
* @param {object} options Object with the following properties:
* @param {Cartesian3} options.dimensions The width, depth, and height of the box stored in the x, y, and z coordinates of the <code>Cartesian3</code>, respectively.
* @returns {BoxOutlineGeometry}
*
* @exception {DeveloperError} All dimensions components must be greater than or equal to zero.
*
*
* @example
* const box = Cesium.BoxOutlineGeometry.fromDimensions({
* dimensions : new Cesium.Cartesian3(500000.0, 500000.0, 500000.0)
* });
* const geometry = Cesium.BoxOutlineGeometry.createGeometry(box);
*
* @see BoxOutlineGeometry.createGeometry
*/
BoxOutlineGeometry.fromDimensions = function (options) {
options = options ?? Frozen.EMPTY_OBJECT;
const dimensions = options.dimensions;
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("dimensions", dimensions);
Check.typeOf.number.greaterThanOrEquals("dimensions.x", dimensions.x, 0);
Check.typeOf.number.greaterThanOrEquals("dimensions.y", dimensions.y, 0);
Check.typeOf.number.greaterThanOrEquals("dimensions.z", dimensions.z, 0);
//>>includeEnd('debug');
const corner = Cartesian3.multiplyByScalar(dimensions, 0.5, new Cartesian3());
return new BoxOutlineGeometry({
minimum: Cartesian3.negate(corner, new Cartesian3()),
maximum: corner,
offsetAttribute: options.offsetAttribute,
});
};
/**
* Creates an outline of a cube from the dimensions of an AxisAlignedBoundingBox.
*
* @param {AxisAlignedBoundingBox} boundingBox A description of the AxisAlignedBoundingBox.
* @returns {BoxOutlineGeometry}
*
*
*
* @example
* const aabb = Cesium.AxisAlignedBoundingBox.fromPoints(Cesium.Cartesian3.fromDegreesArray([
* -72.0, 40.0,
* -70.0, 35.0,
* -75.0, 30.0,
* -70.0, 30.0,
* -68.0, 40.0
* ]));
* const box = Cesium.BoxOutlineGeometry.fromAxisAlignedBoundingBox(aabb);
*
* @see BoxOutlineGeometry.createGeometry
*/
BoxOutlineGeometry.fromAxisAlignedBoundingBox = function (boundingBox) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("boundindBox", boundingBox);
//>>includeEnd('debug');
return new BoxOutlineGeometry({
minimum: boundingBox.minimum,
maximum: boundingBox.maximum,
});
};
/**
* The number of elements used to pack the object into an array.
* @type {number}
*/
BoxOutlineGeometry.packedLength = 2 * Cartesian3.packedLength + 1;
/**
* Stores the provided instance into the provided array.
*
* @param {BoxOutlineGeometry} value The value to pack.
* @param {number[]} array The array to pack into.
* @param {number} [startingIndex=0] The index into the array at which to start packing the elements.
*
* @returns {number[]} The array that was packed into
*/
BoxOutlineGeometry.pack = function (value, array, startingIndex) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("value", value);
Check.defined("array", array);
//>>includeEnd('debug');
startingIndex = startingIndex ?? 0;
Cartesian3.pack(value._min, array, startingIndex);
Cartesian3.pack(value._max, array, startingIndex + Cartesian3.packedLength);
array[startingIndex + Cartesian3.packedLength * 2] =
value._offsetAttribute ?? -1;
return array;
};
const scratchMin = new Cartesian3();
const scratchMax = new Cartesian3();
const scratchOptions = {
minimum: scratchMin,
maximum: scratchMax,
offsetAttribute: undefined,
};
/**
* Retrieves an instance from a packed array.
*
* @param {number[]} array The packed array.
* @param {number} [startingIndex=0] The starting index of the element to be unpacked.
* @param {BoxOutlineGeometry} [result] The object into which to store the result.
* @returns {BoxOutlineGeometry} The modified result parameter or a new BoxOutlineGeometry instance if one was not provided.
*/
BoxOutlineGeometry.unpack = function (array, startingIndex, result) {
//>>includeStart('debug', pragmas.debug);
Check.defined("array", array);
//>>includeEnd('debug');
startingIndex = startingIndex ?? 0;
const min = Cartesian3.unpack(array, startingIndex, scratchMin);
const max = Cartesian3.unpack(
array,
startingIndex + Cartesian3.packedLength,
scratchMax,
);
const offsetAttribute = array[startingIndex + Cartesian3.packedLength * 2];
Eif (!defined(result)) {
scratchOptions.offsetAttribute =
offsetAttribute === -1 ? undefined : offsetAttribute;
return new BoxOutlineGeometry(scratchOptions);
}
result._min = Cartesian3.clone(min, result._min);
result._max = Cartesian3.clone(max, result._max);
result._offsetAttribute =
offsetAttribute === -1 ? undefined : offsetAttribute;
return result;
};
/**
* Computes the geometric representation of an outline of a box, including its vertices, indices, and a bounding sphere.
*
* @param {BoxOutlineGeometry} boxGeometry A description of the box outline.
* @returns {Geometry|undefined} The computed vertices and indices.
*/
BoxOutlineGeometry.createGeometry = function (boxGeometry) {
const min = boxGeometry._min;
const max = boxGeometry._max;
if (Cartesian3.equals(min, max)) {
return;
}
const attributes = new GeometryAttributes();
const indices = new Uint16Array(12 * 2);
const positions = new Float64Array(8 * 3);
positions[0] = min.x;
positions[1] = min.y;
positions[2] = min.z;
positions[3] = max.x;
positions[4] = min.y;
positions[5] = min.z;
positions[6] = max.x;
positions[7] = max.y;
positions[8] = min.z;
positions[9] = min.x;
positions[10] = max.y;
positions[11] = min.z;
positions[12] = min.x;
positions[13] = min.y;
positions[14] = max.z;
positions[15] = max.x;
positions[16] = min.y;
positions[17] = max.z;
positions[18] = max.x;
positions[19] = max.y;
positions[20] = max.z;
positions[21] = min.x;
positions[22] = max.y;
positions[23] = max.z;
attributes.position = new GeometryAttribute({
componentDatatype: ComponentDatatype.DOUBLE,
componentsPerAttribute: 3,
values: positions,
});
// top
indices[0] = 4;
indices[1] = 5;
indices[2] = 5;
indices[3] = 6;
indices[4] = 6;
indices[5] = 7;
indices[6] = 7;
indices[7] = 4;
// bottom
indices[8] = 0;
indices[9] = 1;
indices[10] = 1;
indices[11] = 2;
indices[12] = 2;
indices[13] = 3;
indices[14] = 3;
indices[15] = 0;
// left
indices[16] = 0;
indices[17] = 4;
indices[18] = 1;
indices[19] = 5;
//right
indices[20] = 2;
indices[21] = 6;
indices[22] = 3;
indices[23] = 7;
const diff = Cartesian3.subtract(max, min, diffScratch);
const radius = Cartesian3.magnitude(diff) * 0.5;
if (defined(boxGeometry._offsetAttribute)) {
const length = positions.length;
const offsetValue =
boxGeometry._offsetAttribute === GeometryOffsetAttribute.NONE ? 0 : 1;
const applyOffset = new Uint8Array(length / 3).fill(offsetValue);
attributes.applyOffset = new GeometryAttribute({
componentDatatype: ComponentDatatype.UNSIGNED_BYTE,
componentsPerAttribute: 1,
values: applyOffset,
});
}
return new Geometry({
attributes: attributes,
indices: indices,
primitiveType: PrimitiveType.LINES,
boundingSphere: new BoundingSphere(Cartesian3.ZERO, radius),
offsetAttribute: boxGeometry._offsetAttribute,
});
};
export default BoxOutlineGeometry;
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