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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | 1x 1x 1x 1x 1x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 94x 1x 4x 178x 1x 3x 1x 1x 6x 1x 6x 3x 6x 6x 6x 6x 6x 6x 1x 20x | import Color from "../Core/Color.js";
import Frozen from "../Core/Frozen.js";
import defined from "../Core/defined.js";
import Event from "../Core/Event.js";
import JulianDate from "../Core/JulianDate.js";
import createPropertyDescriptor from "./createPropertyDescriptor.js";
import Property from "./Property.js";
import StripeOrientation from "./StripeOrientation.js";
const defaultOrientation = StripeOrientation.HORIZONTAL;
const defaultEvenColor = Color.WHITE;
const defaultOddColor = Color.BLACK;
const defaultOffset = 0;
const defaultRepeat = 1;
/**
* A {@link MaterialProperty} that maps to stripe {@link Material} uniforms.
* @alias StripeMaterialProperty
* @constructor
*
* @param {object} [options] Object with the following properties:
* @param {Property|StripeOrientation} [options.orientation=StripeOrientation.HORIZONTAL] A Property specifying the {@link StripeOrientation}.
* @param {Property|Color} [options.evenColor=Color.WHITE] A Property specifying the first {@link Color}.
* @param {Property|Color} [options.oddColor=Color.BLACK] A Property specifying the second {@link Color}.
* @param {Property|number} [options.offset=0] A numeric Property specifying how far into the pattern to start the material.
* @param {Property|number} [options.repeat=1] A numeric Property specifying how many times the stripes repeat.
*/
function StripeMaterialProperty(options) {
options = options ?? Frozen.EMPTY_OBJECT;
this._definitionChanged = new Event();
this._orientation = undefined;
this._orientationSubscription = undefined;
this._evenColor = undefined;
this._evenColorSubscription = undefined;
this._oddColor = undefined;
this._oddColorSubscription = undefined;
this._offset = undefined;
this._offsetSubscription = undefined;
this._repeat = undefined;
this._repeatSubscription = undefined;
this.orientation = options.orientation;
this.evenColor = options.evenColor;
this.oddColor = options.oddColor;
this.offset = options.offset;
this.repeat = options.repeat;
}
Object.defineProperties(StripeMaterialProperty.prototype, {
/**
* Gets a value indicating if this property is constant. A property is considered
* constant if getValue always returns the same result for the current definition.
* @memberof StripeMaterialProperty.prototype
*
* @type {boolean}
* @readonly
*/
isConstant: {
get: function () {
return (
Property.isConstant(this._orientation) && //
Property.isConstant(this._evenColor) && //
Property.isConstant(this._oddColor) && //
Property.isConstant(this._offset) && //
Property.isConstant(this._repeat)
);
},
},
/**
* Gets the event that is raised whenever the definition of this property changes.
* The definition is considered to have changed if a call to getValue would return
* a different result for the same time.
* @memberof StripeMaterialProperty.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged: {
get: function () {
return this._definitionChanged;
},
},
/**
* Gets or sets the Property specifying the {@link StripeOrientation}/
* @memberof StripeMaterialProperty.prototype
* @type {Property|undefined}
* @default StripeOrientation.HORIZONTAL
*/
orientation: createPropertyDescriptor("orientation"),
/**
* Gets or sets the Property specifying the first {@link Color}.
* @memberof StripeMaterialProperty.prototype
* @type {Property|undefined}
* @default Color.WHITE
*/
evenColor: createPropertyDescriptor("evenColor"),
/**
* Gets or sets the Property specifying the second {@link Color}.
* @memberof StripeMaterialProperty.prototype
* @type {Property|undefined}
* @default Color.BLACK
*/
oddColor: createPropertyDescriptor("oddColor"),
/**
* Gets or sets the numeric Property specifying the point into the pattern
* to begin drawing; with 0.0 being the beginning of the even color, 1.0 the beginning
* of the odd color, 2.0 being the even color again, and any multiple or fractional values
* being in between.
* @memberof StripeMaterialProperty.prototype
* @type {Property|undefined}
* @default 0.0
*/
offset: createPropertyDescriptor("offset"),
/**
* Gets or sets the numeric Property specifying how many times the stripes repeat.
* @memberof StripeMaterialProperty.prototype
* @type {Property|undefined}
* @default 1.0
*/
repeat: createPropertyDescriptor("repeat"),
});
/**
* Gets the {@link Material} type at the provided time.
*
* @param {JulianDate} time The time for which to retrieve the type.
* @returns {string} The type of material.
*/
StripeMaterialProperty.prototype.getType = function (time) {
return "Stripe";
};
const timeScratch = new JulianDate();
/**
* Gets the value of the property at the provided time.
*
* @param {JulianDate} [time=JulianDate.now()] The time for which to retrieve the value. If omitted, the current system time is used.
* @param {object} [result] The object to store the value into, if omitted, a new instance is created and returned.
* @returns {object} The modified result parameter or a new instance if the result parameter was not supplied.
*/
StripeMaterialProperty.prototype.getValue = function (time, result) {
if (!defined(time)) {
time = JulianDate.now(timeScratch);
}
if (!defined(result)) {
result = {};
}
result.horizontal =
Property.getValueOrDefault(this._orientation, time, defaultOrientation) ===
StripeOrientation.HORIZONTAL;
result.evenColor = Property.getValueOrClonedDefault(
this._evenColor,
time,
defaultEvenColor,
result.evenColor,
);
result.oddColor = Property.getValueOrClonedDefault(
this._oddColor,
time,
defaultOddColor,
result.oddColor,
);
result.offset = Property.getValueOrDefault(this._offset, time, defaultOffset);
result.repeat = Property.getValueOrDefault(this._repeat, time, defaultRepeat);
return result;
};
/**
* Compares this property to the provided property and returns
* <code>true</code> if they are equal, <code>false</code> otherwise.
*
* @param {Property} [other] The other property.
* @returns {boolean} <code>true</code> if left and right are equal, <code>false</code> otherwise.
*/
StripeMaterialProperty.prototype.equals = function (other) {
return (
this === other || //
(other instanceof StripeMaterialProperty && //
Property.equals(this._orientation, other._orientation) && //
Property.equals(this._evenColor, other._evenColor) && //
Property.equals(this._oddColor, other._oddColor) && //
Property.equals(this._offset, other._offset) && //
Property.equals(this._repeat, other._repeat))
);
};
export default StripeMaterialProperty;
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