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import Cartesian3 from "../Core/Cartesian3.js";
import Check from "../Core/Check.js";
import Color from "../Core/Color.js";
import Frozen from "../Core/Frozen.js";
import defined from "../Core/defined.js";
/**
* <div class="notice">
* A cloud is created and its initial properties are set by calling {@link CloudCollection#add}.
* and {@link CloudCollection#remove}. Do not call the constructor directly.
* </div>
* A cumulus cloud billboard positioned in the 3D scene, that is created and rendered using a {@link CloudCollection}.
* <br /><br />
* <div align='center'>
* <img src='Images/CumulusCloud.png' width='400' height='300' /><br />
* Example cumulus clouds
* </div>
* @alias CumulusCloud
*
* @performance Similar to {@link Billboard}, reading a property, e.g., {@link CumulusCloud#show},
* takes constant time. Assigning to a property is constant time but results in
* CPU to GPU traffic when {@link CloudCollection#update} is called. The per-cloud traffic is
* the same regardless of how many properties were updated. If most clouds in a collection need to be
* updated, it may be more efficient to clear the collection with {@link CloudCollection#removeAll}
* and add new clouds instead of modifying each one.
*
* @see CloudCollection
* @see CloudCollection#add
*
* @internalConstructor
* @class
*
* @demo {@link https://sandcastle.cesium.com/index.html?src=Cloud%20Parameters.html|Cesium Sandcastle Cloud Parameters Demo}
*/
function CumulusCloud(options, cloudCollection) {
options = options ?? Frozen.EMPTY_OBJECT;
this._show = options.show ?? true;
this._position = Cartesian3.clone(options.position ?? Cartesian3.ZERO);
if (!defined(options.scale) && defined(options.maximumSize)) {
this._maximumSize = Cartesian3.clone(options.maximumSize);
this._scale = new Cartesian2(this._maximumSize.x, this._maximumSize.y);
} else {
this._scale = Cartesian2.clone(options.scale ?? new Cartesian2(20.0, 12.0));
const defaultMaxSize = new Cartesian3(
this._scale.x,
this._scale.y,
Math.min(this._scale.x, this._scale.y) / 1.5,
);
this._maximumSize = Cartesian3.clone(options.maximumSize ?? defaultMaxSize);
}
this._slice = options.slice ?? -1.0;
this._color = Color.clone(options.color ?? Color.WHITE);
this._brightness = options.brightness ?? 1.0;
this._cloudCollection = cloudCollection;
this._index = -1; // Used by CloudCollection
}
const SHOW_INDEX = (CumulusCloud.SHOW_INDEX = 0);
const POSITION_INDEX = (CumulusCloud.POSITION_INDEX = 1);
const SCALE_INDEX = (CumulusCloud.SCALE_INDEX = 2);
const MAXIMUM_SIZE_INDEX = (CumulusCloud.MAXIMUM_SIZE_INDEX = 3);
const SLICE_INDEX = (CumulusCloud.SLICE_INDEX = 4);
const BRIGHTNESS_INDEX = (CumulusCloud.BRIGHTNESS_INDEX = 5);
const COLOR_INDEX = (CumulusCloud.COLOR_INDEX = 6);
CumulusCloud.NUMBER_OF_PROPERTIES = 7;
function makeDirty(cloud, propertyChanged) {
const cloudCollection = cloud._cloudCollection;
if (defined(cloudCollection)) {
cloudCollection._updateCloud(cloud, propertyChanged);
cloud._dirty = true;
}
}
Object.defineProperties(CumulusCloud.prototype, {
/**
* Determines if this cumulus cloud will be shown. Use this to hide or show a cloud, instead
* of removing it and re-adding it to the collection.
* @memberof CumulusCloud.prototype
* @type {boolean}
* @default true
*/
show: {
get: function () {
return this._show;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.bool("value", value);
//>>includeEnd('debug');
Eif (this._show !== value) {
this._show = value;
makeDirty(this, SHOW_INDEX);
}
},
},
/**
* Gets or sets the Cartesian position of this cumulus cloud.
* @memberof CumulusCloud.prototype
* @type {Cartesian3}
*/
position: {
get: function () {
return this._position;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug)
Check.typeOf.object("value", value);
//>>includeEnd('debug');
const position = this._position;
Eif (!Cartesian3.equals(position, value)) {
Cartesian3.clone(value, position);
makeDirty(this, POSITION_INDEX);
}
},
},
/**
* <p>Gets or sets the scale of the cumulus cloud billboard in meters.
* The <code>scale</code> property will affect the size of the billboard,
* but not the cloud's actual appearance.</p>
* <div align='center'>
* <table border='0' cellpadding='5'><tr>
* <td align='center'>
* <code>cloud.scale = new Cesium.Cartesian2(12, 8);</code><br/>
* <img src='Images/CumulusCloud.scalex12y8.png' width='250' height='158' />
* </td>
* <td align='center'>
* <code>cloud.scale = new Cesium.Cartesian2(24, 10);</code><br/>
* <img src='Images/CumulusCloud.scalex24y10.png' width='250' height='158' />
* </td>
* </tr></table>
* </div>
*
* <p>To modify the cloud's appearance, modify its <code>maximumSize</code>
* and <code>slice</code> properties.</p>
* @memberof CumulusCloud.prototype
* @type {Cartesian2}
*
* @see CumulusCloud#maximumSize
* @see CumulusCloud#slice
*/
scale: {
get: function () {
return this._scale;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug)
Check.typeOf.object("value", value);
//>>includeEnd('debug');
const scale = this._scale;
Eif (!Cartesian2.equals(scale, value)) {
Cartesian2.clone(value, scale);
makeDirty(this, SCALE_INDEX);
}
},
},
/**
* <p>Gets or sets the maximum size of the cumulus cloud rendered on the billboard.
* This defines a maximum ellipsoid volume that the cloud can appear in.
* Rather than guaranteeing a specific size, this specifies a boundary for the
* cloud to appear in, and changing it can affect the shape of the cloud.</p>
* <p>Changing the z-value of <code>maximumSize</code> has the most dramatic effect
* on the cloud's appearance because it changes the depth of the cloud, and thus the
* positions at which the cloud-shaping texture is sampled.</p>
* <div align='center'>
* <table border='0' cellpadding='5'>
* <tr>
* <td align='center'>
* <code>cloud.maximumSize = new Cesium.Cartesian3(14, 9, 10);</code><br/>
* <img src='Images/CumulusCloud.maximumSizex14y9z10.png' width='250' height='158' />
* </td>
* <td align='center'>
* <code>cloud.maximumSize.x = 25;</code><br/>
* <img src='Images/CumulusCloud.maximumSizex25.png' width='250' height='158' />
* </td>
* </tr>
* <tr>
* <td align='center'>
* <code>cloud.maximumSize.y = 5;</code><br/>
* <img src='Images/CumulusCloud.maximumSizey5.png' width='250' height='158' />
* </td>
* <td align='center'>
* <code>cloud.maximumSize.z = 17;</code><br/>
* <img src='Images/CumulusCloud.maximumSizez17.png' width='250' height='158' />
* </td>
* </tr>
* </table>
* </div>
*
* <p>To modify the billboard's actual size, modify the cloud's <code>scale</code> property.</p>
* @memberof CumulusCloud.prototype
* @type {Cartesian3}
*
* @see CumulusCloud#scale
*/
maximumSize: {
get: function () {
return this._maximumSize;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug)
Check.typeOf.object("value", value);
//>>includeEnd('debug');
const maximumSize = this._maximumSize;
Eif (!Cartesian3.equals(maximumSize, value)) {
Cartesian3.clone(value, maximumSize);
makeDirty(this, MAXIMUM_SIZE_INDEX);
}
},
},
/**
* Sets the color of the cloud
* @memberof CumulusCloud.prototype
* @type {Color}
* @default Color.WHITE
*/
color: {
get: function () {
return this._color;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug)
Check.typeOf.object("value", value);
//>>includeEnd('debug');
const color = this._color;
Eif (!Color.equals(color, value)) {
Color.clone(value, color);
makeDirty(this, COLOR_INDEX);
}
},
},
/**
* <p>Gets or sets the "slice" of the cloud that is rendered on the billboard, i.e.
* the specific cross-section of the cloud chosen for the billboard's appearance.
* Given a value between 0 and 1, the slice specifies how deeply into the cloud
* to intersect based on its maximum size in the z-direction.</p>
* <div align='center'>
* <table border='0' cellpadding='5'><tr>
* <td align='center'><code>cloud.slice = 0.32;</code><br/><img src='Images/CumulusCloud.slice0.32.png' width='250' height='158' /></td>
* <td align='center'><code>cloud.slice = 0.5;</code><br/><img src='Images/CumulusCloud.slice0.5.png' width='250' height='158' /></td>
* <td align='center'><code>cloud.slice = 0.6;</code><br/><img src='Images/CumulusCloud.slice0.6.png' width='250' height='158' /></td>
* </tr></table>
* </div>
*
* <br />
* <p>Due to the nature in which this slice is calculated,
* values below <code>0.2</code> may result in cross-sections that are too small,
* and the edge of the ellipsoid will be visible. Similarly, values above <code>0.7</code>
* will cause the cloud to appear smaller. Values outside the range <code>[0.1, 0.9]</code>
* should be avoided entirely because they do not produce desirable results.</p>
*
* <div align='center'>
* <table border='0' cellpadding='5'><tr>
* <td align='center'><code>cloud.slice = 0.08;</code><br/><img src='Images/CumulusCloud.slice0.08.png' width='250' height='158' /></td>
* <td align='center'><code>cloud.slice = 0.8;</code><br/><img src='Images/CumulusCloud.slice0.8.png' width='250' height='158' /></td>
* </tr></table>
* </div>
*
* <p>If <code>slice</code> is set to a negative number, the cloud will not render a cross-section.
* Instead, it will render the outside of the ellipsoid that is visible. For clouds with
* small values of `maximumSize.z`, this can produce good-looking results, but for larger
* clouds, this can result in a cloud that is undesirably warped to the ellipsoid volume.</p>
*
* <div align='center'>
* <table border='0' cellpadding='5'><tr>
* <td align='center'>
* <code>cloud.slice = -1.0;<br/>cloud.maximumSize.z = 18;</code><br/>
* <img src='Images/CumulusCloud.slice-1z18.png' width='250' height='158' />
* </td>
* <td align='center'>
* <code>cloud.slice = -1.0;<br/>cloud.maximumSize.z = 30;</code><br/>
* <img src='Images/CumulusCloud.slice-1z30.png' width='250' height='158' /></td>
* </tr></table>
* </div>
*
* @memberof CumulusCloud.prototype
* @type {number}
* @default -1.0
*/
slice: {
get: function () {
return this._slice;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug)
Check.typeOf.number("value", value);
//>>includeEnd('debug');
const slice = this._slice;
Eif (slice !== value) {
this._slice = value;
makeDirty(this, SLICE_INDEX);
}
},
},
/**
* Gets or sets the brightness of the cloud. This can be used to give clouds
* a darker, grayer appearance.
* <br /><br />
* <div align='center'>
* <table border='0' cellpadding='5'><tr>
* <td align='center'><code>cloud.brightness = 1.0;</code><br/><img src='Images/CumulusCloud.brightness1.png' width='250' height='158' /></td>
* <td align='center'><code>cloud.brightness = 0.6;</code><br/><img src='Images/CumulusCloud.brightness0.6.png' width='250' height='158' /></td>
* <td align='center'><code>cloud.brightness = 0.0;</code><br/><img src='Images/CumulusCloud.brightness0.png' width='250' height='158' /></td>
* </tr></table>
* </div>
* @memberof CumulusCloud.prototype
* @type {number}
* @default 1.0
*/
brightness: {
get: function () {
return this._brightness;
},
set: function (value) {
//>>includeStart('debug', pragmas.debug)
Check.typeOf.number("value", value);
//>>includeEnd('debug');
const brightness = this._brightness;
Eif (brightness !== value) {
this._brightness = value;
makeDirty(this, BRIGHTNESS_INDEX);
}
},
},
});
CumulusCloud.prototype._destroy = function () {
this._cloudCollection = undefined;
};
export default CumulusCloud;
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