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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | 16x 16x 16x 15x 15x 13x 1x 1x 10x 8x 1x 1x 1x 8x 6x 6x 6x 6x 6x 6x 6x 6x 6x 1x 5x | import Cartesian3 from "./Cartesian3.js";
import Check from "./Check.js";
import Frozen from "./Frozen.js";
import defined from "./defined.js";
import EllipseOutlineGeometry from "./EllipseOutlineGeometry.js";
import Ellipsoid from "./Ellipsoid.js";
/**
* A description of the outline of a circle on the ellipsoid.
*
* @alias CircleOutlineGeometry
* @constructor
*
* @param {object} options Object with the following properties:
* @param {Cartesian3} options.center The circle's center point in the fixed frame.
* @param {number} options.radius The radius in meters.
* @param {Ellipsoid} [options.ellipsoid=Ellipsoid.default] The ellipsoid the circle will be on.
* @param {number} [options.height=0.0] The distance in meters between the circle and the ellipsoid surface.
* @param {number} [options.granularity=0.02] The angular distance between points on the circle in radians.
* @param {number} [options.extrudedHeight=0.0] The distance in meters between the circle's extruded face and the ellipsoid surface.
* @param {number} [options.numberOfVerticalLines=16] Number of lines to draw between the top and bottom of an extruded circle.
*
* @exception {DeveloperError} radius must be greater than zero.
* @exception {DeveloperError} granularity must be greater than zero.
*
* @see CircleOutlineGeometry.createGeometry
* @see Packable
*
* @example
* // Create a circle.
* const circle = new Cesium.CircleOutlineGeometry({
* center : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
* radius : 100000.0
* });
* const geometry = Cesium.CircleOutlineGeometry.createGeometry(circle);
*/
function CircleOutlineGeometry(options) {
options = options ?? Frozen.EMPTY_OBJECT;
const radius = options.radius;
//>>includeStart('debug', pragmas.debug);
Check.typeOf.number("radius", radius);
//>>includeEnd('debug');
const ellipseGeometryOptions = {
center: options.center,
semiMajorAxis: radius,
semiMinorAxis: radius,
ellipsoid: options.ellipsoid,
height: options.height,
extrudedHeight: options.extrudedHeight,
granularity: options.granularity,
numberOfVerticalLines: options.numberOfVerticalLines,
};
this._ellipseGeometry = new EllipseOutlineGeometry(ellipseGeometryOptions);
this._workerName = "createCircleOutlineGeometry";
}
/**
* The number of elements used to pack the object into an array.
* @type {number}
*/
CircleOutlineGeometry.packedLength = EllipseOutlineGeometry.packedLength;
/**
* Stores the provided instance into the provided array.
*
* @param {CircleOutlineGeometry} 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
*/
CircleOutlineGeometry.pack = function (value, array, startingIndex) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.object("value", value);
//>>includeEnd('debug');
return EllipseOutlineGeometry.pack(
value._ellipseGeometry,
array,
startingIndex,
);
};
const scratchEllipseGeometry = new EllipseOutlineGeometry({
center: new Cartesian3(),
semiMajorAxis: 1.0,
semiMinorAxis: 1.0,
});
const scratchOptions = {
center: new Cartesian3(),
radius: undefined,
ellipsoid: Ellipsoid.clone(Ellipsoid.UNIT_SPHERE),
height: undefined,
extrudedHeight: undefined,
granularity: undefined,
numberOfVerticalLines: undefined,
semiMajorAxis: undefined,
semiMinorAxis: 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 {CircleOutlineGeometry} [result] The object into which to store the result.
* @returns {CircleOutlineGeometry} The modified result parameter or a new CircleOutlineGeometry instance if one was not provided.
*/
CircleOutlineGeometry.unpack = function (array, startingIndex, result) {
const ellipseGeometry = EllipseOutlineGeometry.unpack(
array,
startingIndex,
scratchEllipseGeometry,
);
scratchOptions.center = Cartesian3.clone(
ellipseGeometry._center,
scratchOptions.center,
);
scratchOptions.ellipsoid = Ellipsoid.clone(
ellipseGeometry._ellipsoid,
scratchOptions.ellipsoid,
);
scratchOptions.height = ellipseGeometry._height;
scratchOptions.extrudedHeight = ellipseGeometry._extrudedHeight;
scratchOptions.granularity = ellipseGeometry._granularity;
scratchOptions.numberOfVerticalLines = ellipseGeometry._numberOfVerticalLines;
Eif (!defined(result)) {
scratchOptions.radius = ellipseGeometry._semiMajorAxis;
return new CircleOutlineGeometry(scratchOptions);
}
scratchOptions.semiMajorAxis = ellipseGeometry._semiMajorAxis;
scratchOptions.semiMinorAxis = ellipseGeometry._semiMinorAxis;
result._ellipseGeometry = new EllipseOutlineGeometry(scratchOptions);
return result;
};
/**
* Computes the geometric representation of an outline of a circle on an ellipsoid, including its vertices, indices, and a bounding sphere.
*
* @param {CircleOutlineGeometry} circleGeometry A description of the circle.
* @returns {Geometry|undefined} The computed vertices and indices.
*/
CircleOutlineGeometry.createGeometry = function (circleGeometry) {
return EllipseOutlineGeometry.createGeometry(circleGeometry._ellipseGeometry);
};
export default CircleOutlineGeometry;
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