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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | 1x 1x 1x 1x 1x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 110x 1x 23x 210x 1x 34x 1x 1x 49x 1x 49x 17x 49x 49x 49x 49x 49x 49x 1x 21x | import Cartesian2 from "../Core/Cartesian2.js";
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";
const defaultColor = Color.WHITE;
const defaultCellAlpha = 0.1;
const defaultLineCount = new Cartesian2(8, 8);
const defaultLineOffset = new Cartesian2(0, 0);
const defaultLineThickness = new Cartesian2(1, 1);
/**
* A {@link MaterialProperty} that maps to grid {@link Material} uniforms.
* @alias GridMaterialProperty
*
* @param {object} [options] Object with the following properties:
* @param {Property|Color} [options.color=Color.WHITE] A Property specifying the grid {@link Color}.
* @param {Property|number} [options.cellAlpha=0.1] A numeric Property specifying cell alpha values.
* @param {Property|Cartesian2} [options.lineCount=new Cartesian2(8, 8)] A {@link Cartesian2} Property specifying the number of grid lines along each axis.
* @param {Property|Cartesian2} [options.lineThickness=new Cartesian2(1.0, 1.0)] A {@link Cartesian2} Property specifying the thickness of grid lines along each axis.
* @param {Property|Cartesian2} [options.lineOffset=new Cartesian2(0.0, 0.0)] A {@link Cartesian2} Property specifying starting offset of grid lines along each axis.
*
* @constructor
*/
function GridMaterialProperty(options) {
options = options ?? Frozen.EMPTY_OBJECT;
this._definitionChanged = new Event();
this._color = undefined;
this._colorSubscription = undefined;
this._cellAlpha = undefined;
this._cellAlphaSubscription = undefined;
this._lineCount = undefined;
this._lineCountSubscription = undefined;
this._lineThickness = undefined;
this._lineThicknessSubscription = undefined;
this._lineOffset = undefined;
this._lineOffsetSubscription = undefined;
this.color = options.color;
this.cellAlpha = options.cellAlpha;
this.lineCount = options.lineCount;
this.lineThickness = options.lineThickness;
this.lineOffset = options.lineOffset;
}
Object.defineProperties(GridMaterialProperty.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 GridMaterialProperty.prototype
*
* @type {boolean}
* @readonly
*/
isConstant: {
get: function () {
return (
Property.isConstant(this._color) &&
Property.isConstant(this._cellAlpha) &&
Property.isConstant(this._lineCount) &&
Property.isConstant(this._lineThickness) &&
Property.isConstant(this._lineOffset)
);
},
},
/**
* 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 GridMaterialProperty.prototype
*
* @type {Event}
* @readonly
*/
definitionChanged: {
get: function () {
return this._definitionChanged;
},
},
/**
* Gets or sets the Property specifying the grid {@link Color}.
* @memberof GridMaterialProperty.prototype
* @type {Property|undefined}
* @default Color.WHITE
*/
color: createPropertyDescriptor("color"),
/**
* Gets or sets the numeric Property specifying cell alpha values.
* @memberof GridMaterialProperty.prototype
* @type {Property|undefined}
* @default 0.1
*/
cellAlpha: createPropertyDescriptor("cellAlpha"),
/**
* Gets or sets the {@link Cartesian2} Property specifying the number of grid lines along each axis.
* @memberof GridMaterialProperty.prototype
* @type {Property|undefined}
* @default new Cartesian2(8.0, 8.0)
*/
lineCount: createPropertyDescriptor("lineCount"),
/**
* Gets or sets the {@link Cartesian2} Property specifying the thickness of grid lines along each axis.
* @memberof GridMaterialProperty.prototype
* @type {Property|undefined}
* @default new Cartesian2(1.0, 1.0)
*/
lineThickness: createPropertyDescriptor("lineThickness"),
/**
* Gets or sets the {@link Cartesian2} Property specifying the starting offset of grid lines along each axis.
* @memberof GridMaterialProperty.prototype
* @type {Property|undefined}
* @default new Cartesian2(0.0, 0.0)
*/
lineOffset: createPropertyDescriptor("lineOffset"),
});
/**
* 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.
*/
GridMaterialProperty.prototype.getType = function (time) {
return "Grid";
};
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.
*/
GridMaterialProperty.prototype.getValue = function (time, result) {
if (!defined(time)) {
time = JulianDate.now(timeScratch);
}
if (!defined(result)) {
result = {};
}
result.color = Property.getValueOrClonedDefault(
this._color,
time,
defaultColor,
result.color,
);
result.cellAlpha = Property.getValueOrDefault(
this._cellAlpha,
time,
defaultCellAlpha,
);
result.lineCount = Property.getValueOrClonedDefault(
this._lineCount,
time,
defaultLineCount,
result.lineCount,
);
result.lineThickness = Property.getValueOrClonedDefault(
this._lineThickness,
time,
defaultLineThickness,
result.lineThickness,
);
result.lineOffset = Property.getValueOrClonedDefault(
this._lineOffset,
time,
defaultLineOffset,
result.lineOffset,
);
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.
*/
GridMaterialProperty.prototype.equals = function (other) {
return (
this === other || //
(other instanceof GridMaterialProperty && //
Property.equals(this._color, other._color) && //
Property.equals(this._cellAlpha, other._cellAlpha) && //
Property.equals(this._lineCount, other._lineCount) && //
Property.equals(this._lineThickness, other._lineThickness) && //
Property.equals(this._lineOffset, other._lineOffset))
);
};
export default GridMaterialProperty;
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