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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 | 601x 601x 1x 236x 236x 236x 1x 777x 1x 776x 758x 18x 18x | import ComponentDatatype from "./ComponentDatatype.js";
import defined from "./defined.js";
import DeveloperError from "./DeveloperError.js";
/**
* Value and type information for per-instance geometry attribute that determines if the geometry instance will be shown.
*
* @alias ShowGeometryInstanceAttribute
* @constructor
*
* @param {boolean} [show=true] Determines if the geometry instance will be shown.
*
*
* @example
* const instance = new Cesium.GeometryInstance({
* geometry : new Cesium.BoxGeometry({
* vertexFormat : Cesium.VertexFormat.POSITION_AND_NORMAL,
* minimum : new Cesium.Cartesian3(-250000.0, -250000.0, -250000.0),
* maximum : new Cesium.Cartesian3(250000.0, 250000.0, 250000.0)
* }),
* modelMatrix : Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
* Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)), new Cesium.Cartesian3(0.0, 0.0, 1000000.0), new Cesium.Matrix4()),
* id : 'box',
* attributes : {
* show : new Cesium.ShowGeometryInstanceAttribute(false)
* }
* });
*
* @see GeometryInstance
* @see GeometryInstanceAttribute
*/
function ShowGeometryInstanceAttribute(show) {
show = show ?? true;
/**
* The values for the attributes stored in a typed array.
*
* @type Uint8Array
*
* @default [1.0]
*/
this.value = ShowGeometryInstanceAttribute.toValue(show);
}
Object.defineProperties(ShowGeometryInstanceAttribute.prototype, {
/**
* The datatype of each component in the attribute, e.g., individual elements in
* {@link ColorGeometryInstanceAttribute#value}.
*
* @memberof ShowGeometryInstanceAttribute.prototype
*
* @type {ComponentDatatype}
* @readonly
*
* @default {@link ComponentDatatype.UNSIGNED_BYTE}
*/
componentDatatype: {
get: function () {
return ComponentDatatype.UNSIGNED_BYTE;
},
},
/**
* The number of components in the attributes, i.e., {@link ColorGeometryInstanceAttribute#value}.
*
* @memberof ShowGeometryInstanceAttribute.prototype
*
* @type {number}
* @readonly
*
* @default 1
*/
componentsPerAttribute: {
get: function () {
return 1;
},
},
/**
* When <code>true</code> and <code>componentDatatype</code> is an integer format,
* indicate that the components should be mapped to the range [0, 1] (unsigned)
* or [-1, 1] (signed) when they are accessed as floating-point for rendering.
*
* @memberof ShowGeometryInstanceAttribute.prototype
*
* @type {boolean}
* @readonly
*
* @default true
*/
normalize: {
get: function () {
return false;
},
},
});
/**
* Converts a boolean show to a typed array that can be used to assign a show attribute.
*
* @param {boolean} show The show value.
* @param {Uint8Array} [result] The array to store the result in, if undefined a new instance will be created.
* @returns {Uint8Array} The modified result parameter or a new instance if result was undefined.
*
* @example
* const attributes = primitive.getGeometryInstanceAttributes('an id');
* attributes.show = Cesium.ShowGeometryInstanceAttribute.toValue(true, attributes.show);
*/
ShowGeometryInstanceAttribute.toValue = function (show, result) {
//>>includeStart('debug', pragmas.debug);
if (!defined(show)) {
throw new DeveloperError("show is required.");
}
//>>includeEnd('debug');
if (!defined(result)) {
return new Uint8Array([show]);
}
result[0] = show;
return result;
};
export default ShowGeometryInstanceAttribute;
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