Cesium3DTileStyle
查阅Mars3D API

new Cesium.Cesium3DTileStyle(style)
engine/Source/Scene/Cesium3DTileStyle.js 44

A style that is applied to a Cesium3DTileset.

Evaluates an expression defined using the 3D Tiles Styling language.

参数名称 类型 描述信息
style object 可选 An object defining a style.
使用示例s:
tileset.style = new Cesium.Cesium3DTileStyle({
    color : {
        conditions : [
            ['${Height} >= 100', 'color("purple", 0.5)'],
            ['${Height} >= 50', 'color("red")'],
            ['true', 'color("blue")']
        ]
    },
    show : '${Height} > 0',
    meta : {
        description : '"Building id ${id} has height ${Height}."'
    }
});
tileset.style = new Cesium.Cesium3DTileStyle({
    color : 'vec4(${Temperature})',
    pointSize : '${Temperature} * 2.0'
});
参考:

成员(属性)

anchorLineColor : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1032

Gets or sets the StyleExpression object used to evaluate the style's anchorLineColor property. Alternatively a string or object defining a color style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Color.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override anchorLineColor expression with a string
style.anchorLineColor = 'color("blue")';
const style = new Cesium.Cesium3DTileStyle();
// Override anchorLineColor expression with a condition
style.anchorLineColor = {
    conditions : [
        ['${height} > 2', 'color("cyan")'],
        ['true', 'color("blue")']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

anchorLineEnabled : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 989

Gets or sets the StyleExpression object used to evaluate the style's anchorLineEnabled property. Alternatively a string or object defining a boolean style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Boolean.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override anchorLineEnabled expression with a string
style.anchorLineEnabled = 'true';
const style = new Cesium.Cesium3DTileStyle();
// Override anchorLineEnabled expression with a condition
style.anchorLineEnabled = {
    conditions : [
        ['${height} > 2', 'true'],
        ['true', 'false']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

backgroundColor : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 726

Gets or sets the StyleExpression object used to evaluate the style's backgroundColor property. Alternatively a string or object defining a color style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Color.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override backgroundColor expression with a string
style.backgroundColor = 'color("blue")';
const style = new Cesium.Cesium3DTileStyle();
// Override backgroundColor expression with a condition
style.backgroundColor = {
    conditions : [
        ['${height} > 2', 'color("cyan")'],
        ['true', 'color("blue")']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

backgroundEnabled : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 803

Gets or sets the StyleExpression object used to evaluate the style's backgroundEnabled property. Alternatively a string or object defining a boolean style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Boolean.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override backgroundEnabled expression with a string
style.backgroundEnabled = 'true';
const style = new Cesium.Cesium3DTileStyle();
// Override backgroundEnabled expression with a condition
style.backgroundEnabled = {
    conditions : [
        ['${height} > 2', 'true'],
        ['true', 'false']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

backgroundPadding : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 760

Gets or sets the StyleExpression object used to evaluate the style's backgroundPadding property. Alternatively a string or object defining a vec2 style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Cartesian2.

This expression is only applicable to point features in a Vector tile.

使用示例:
const style = new Cesium.Cesium3DTileStyle();
// Override backgroundPadding expression with a string
style.backgroundPadding = 'vec2(5.0, 7.0)';
style.backgroundPadding.evaluate(feature); // returns a Cartesian2
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

color : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 288

Gets or sets the StyleExpression object used to evaluate the style's color property. Alternatively a string or object defining a color style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Color.

This expression is applicable to all tile formats.

使用示例s:
const style = new Cesium3DTileStyle({
    color : '(${Temperature} > 90) ? color("red") : color("white")'
});
style.color.evaluateColor(feature, result); // returns a Cesium.Color object
const style = new Cesium.Cesium3DTileStyle();
// Override color expression with a custom function
style.color = {
    evaluateColor : function(feature, result) {
        return Cesium.Color.clone(Cesium.Color.WHITE, result);
    }
};
const style = new Cesium.Cesium3DTileStyle();
// Override color expression with a string
style.color = 'color("blue")';
const style = new Cesium.Cesium3DTileStyle();
// Override color expression with a condition
style.color = {
    conditions : [
        ['${height} > 2', 'color("cyan")'],
        ['true', 'color("blue")']
    ]
};

disableDepthTestDistance : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1107

Gets or sets the StyleExpression object used to evaluate the style's disableDepthTestDistance property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Number.

This expression is only applicable to point features in a Vector tile.

使用示例:
const style = new Cesium.Cesium3DTileStyle();
// Override disableDepthTestDistance expression with a string
style.disableDepthTestDistance = '1000.0';
style.disableDepthTestDistance.evaluate(feature); // returns a Number
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

distanceDisplayCondition : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 905

Gets or sets the StyleExpression object used to evaluate the style's distanceDisplayCondition property. Alternatively a string or object defining a vec2 style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Cartesian2.

This expression is only applicable to point features in a Vector tile.

使用示例:
const style = new Cesium.Cesium3DTileStyle();
// Override distanceDisplayCondition expression with a string
style.distanceDisplayCondition = 'vec2(0.0, 5.5e6)';
style.distanceDisplayCondition.evaluate(feature); // returns a Cartesian2
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

font : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 603

Gets or sets the StyleExpression object used to evaluate the style's font property. Alternatively a string or object defining a string style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a String.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    font : '(${Temperature} > 90) ? "30px Helvetica" : "24px Helvetica"'
});
style.font.evaluate(feature); // returns a String
const style = new Cesium.Cesium3DTileStyle();
// Override font expression with a custom function
style.font = {
    evaluate : function(feature) {
        return '24px Helvetica';
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

heightOffset : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 948

Gets or sets the StyleExpression object used to evaluate the style's heightOffset property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Number.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override heightOffset expression with a string
style.heightOffset = '2.0';
const style = new Cesium.Cesium3DTileStyle();
// Override heightOffset expression with a condition
style.heightOffset = {
    conditions : [
        ['${height} > 2', '4.0'],
        ['true', '2.0']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

horizontalOrigin : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1150

Gets or sets the StyleExpression object used to evaluate the style's horizontalOrigin property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a HorizontalOrigin.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    horizontalOrigin : HorizontalOrigin.LEFT
});
style.horizontalOrigin.evaluate(feature); // returns a HorizontalOrigin
const style = new Cesium.Cesium3DTileStyle();
// Override horizontalOrigin expression with a custom function
style.horizontalOrigin = {
    evaluate : function(feature) {
        return HorizontalOrigin.CENTER;
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

image : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1075

Gets or sets the StyleExpression object used to evaluate the style's image property. Alternatively a string or object defining a string style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a String.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    image : '(${Temperature} > 90) ? "/url/to/image1" : "/url/to/image2"'
});
style.image.evaluate(feature); // returns a String
const style = new Cesium.Cesium3DTileStyle();
// Override image expression with a custom function
style.image = {
    evaluate : function(feature) {
        return '/url/to/image';
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelColor : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 476

Gets or sets the StyleExpression object used to evaluate the style's labelColor property. Alternatively a string or object defining a color style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Color.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override labelColor expression with a string
style.labelColor = 'color("blue")';
const style = new Cesium.Cesium3DTileStyle();
// Override labelColor expression with a condition
style.labelColor = {
    conditions : [
        ['${height} > 2', 'color("cyan")'],
        ['true', 'color("blue")']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelHorizontalOrigin : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1234

Gets or sets the StyleExpression object used to evaluate the style's labelHorizontalOrigin property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a HorizontalOrigin.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    labelHorizontalOrigin : HorizontalOrigin.LEFT
});
style.labelHorizontalOrigin.evaluate(feature); // returns a HorizontalOrigin
const style = new Cesium.Cesium3DTileStyle();
// Override labelHorizontalOrigin expression with a custom function
style.labelHorizontalOrigin = {
    evaluate : function(feature) {
        return HorizontalOrigin.CENTER;
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelOutlineColor : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 517

Gets or sets the StyleExpression object used to evaluate the style's labelOutlineColor property. Alternatively a string or object defining a color style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Color.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override labelOutlineColor expression with a string
style.labelOutlineColor = 'color("blue")';
const style = new Cesium.Cesium3DTileStyle();
// Override labelOutlineColor expression with a condition
style.labelOutlineColor = {
    conditions : [
        ['${height} > 2', 'color("cyan")'],
        ['true', 'color("blue")']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelOutlineWidth : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 560

Gets or sets the StyleExpression object used to evaluate the style's labelOutlineWidth property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Number.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override labelOutlineWidth expression with a string
style.labelOutlineWidth = '5';
const style = new Cesium.Cesium3DTileStyle();
// Override labelOutlineWidth expression with a condition
style.labelOutlineWidth = {
    conditions : [
        ['${height} > 2', '5'],
        ['true', '0']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelStyle : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 644

Gets or sets the StyleExpression object used to evaluate the style's label style property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a LabelStyle.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    labelStyle : `(\${Temperature} > 90) ? ${LabelStyle.FILL_AND_OUTLINE} : ${LabelStyle.FILL}`
});
style.labelStyle.evaluate(feature); // returns a LabelStyle
const style = new Cesium.Cesium3DTileStyle();
// Override labelStyle expression with a custom function
style.labelStyle = {
    evaluate : function(feature) {
        return LabelStyle.FILL;
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelText : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 685

Gets or sets the StyleExpression object used to evaluate the style's labelText property. Alternatively a string or object defining a string style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a String.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    labelText : '(${Temperature} > 90) ? ">90" : "<=90"'
});
style.labelText.evaluate(feature); // returns a String
const style = new Cesium.Cesium3DTileStyle();
// Override labelText expression with a custom function
style.labelText = {
    evaluate : function(feature) {
        return 'Example label text';
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

labelVerticalOrigin : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1277

Gets or sets the StyleExpression object used to evaluate the style's labelVerticalOrigin property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a VerticalOrigin.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    labelVerticalOrigin : VerticalOrigin.TOP
});
style.labelVerticalOrigin.evaluate(feature); // returns a VerticalOrigin
const style = new Cesium.Cesium3DTileStyle();
// Override labelVerticalOrigin expression with a custom function
style.labelVerticalOrigin = {
    evaluate : function(feature) {
        return VerticalOrigin.CENTER;
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

meta : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1305

Gets or sets the object containing application-specific expression that can be explicitly evaluated, e.g., for display in a UI.
使用示例:
const style = new Cesium3DTileStyle({
    meta : {
        description : '"Building id ${id} has height ${Height}."'
    }
});
style.meta.description.evaluate(feature); // returns a String with the substituted variables

pointOutlineColor : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 390

Gets or sets the StyleExpression object used to evaluate the style's pointOutlineColor property. Alternatively a string or object defining a color style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Color.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override pointOutlineColor expression with a string
style.pointOutlineColor = 'color("blue")';
const style = new Cesium.Cesium3DTileStyle();
// Override pointOutlineColor expression with a condition
style.pointOutlineColor = {
    conditions : [
        ['${height} > 2', 'color("cyan")'],
        ['true', 'color("blue")']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

pointOutlineWidth : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 433

Gets or sets the StyleExpression object used to evaluate the style's pointOutlineWidth property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Number.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium.Cesium3DTileStyle();
// Override pointOutlineWidth expression with a string
style.pointOutlineWidth = '5';
const style = new Cesium.Cesium3DTileStyle();
// Override pointOutlineWidth expression with a condition
style.pointOutlineWidth = {
    conditions : [
        ['${height} > 2', '5'],
        ['true', '0']
    ]
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

pointSize : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 348

Gets or sets the StyleExpression object used to evaluate the style's pointSize property. Alternatively a string or object defining a point size style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Number.

This expression is only applicable to point features in a Vector tile or a Point Cloud tile.

使用示例s:
const style = new Cesium3DTileStyle({
    pointSize : '(${Temperature} > 90) ? 2.0 : 1.0'
});
style.pointSize.evaluate(feature); // returns a Number
const style = new Cesium.Cesium3DTileStyle();
// Override pointSize expression with a custom function
style.pointSize = {
    evaluate : function(feature) {
        return 1.0;
    }
};
const style = new Cesium.Cesium3DTileStyle();
// Override pointSize expression with a number
style.pointSize = 1.0;
const style = new Cesium.Cesium3DTileStyle();
// Override pointSize expression with a string
style.pointSize = '${height} / 10';
const style = new Cesium.Cesium3DTileStyle();
// Override pointSize expression with a condition
style.pointSize =  {
    conditions : [
        ['${height} > 2', '1.0'],
        ['true', '2.0']
    ]
};

scaleByDistance : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 837

Gets or sets the StyleExpression object used to evaluate the style's scaleByDistance property. Alternatively a string or object defining a vec4 style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Cartesian4.

This expression is only applicable to point features in a Vector tile.

使用示例:
const style = new Cesium.Cesium3DTileStyle();
// Override scaleByDistance expression with a string
style.scaleByDistance = 'vec4(1.5e2, 2.0, 1.5e7, 0.5)';
style.scaleByDistance.evaluate(feature); // returns a Cartesian4
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

show : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 233

Gets or sets the StyleExpression object used to evaluate the style's show property. Alternatively a boolean, string, or object defining a show style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return or convert to a Boolean.

This expression is applicable to all tile formats.

使用示例s:
const style = new Cesium3DTileStyle({
    show : '(regExp("^Chest").test(${County})) && (${YearBuilt} >= 1970)'
});
style.show.evaluate(feature); // returns true or false depending on the feature's properties
const style = new Cesium.Cesium3DTileStyle();
// Override show expression with a custom function
style.show = {
    evaluate : function(feature) {
        return true;
    }
};
const style = new Cesium.Cesium3DTileStyle();
// Override show expression with a boolean
style.show = true;
};
const style = new Cesium.Cesium3DTileStyle();
// Override show expression with a string
style.show = '${Height} > 0';
};
const style = new Cesium.Cesium3DTileStyle();
// Override show expression with a condition
style.show = {
    conditions: [
        ['${height} > 2', 'false'],
        ['true', 'true']
    ];
};

readonly style : object
engine/Source/Scene/Cesium3DTileStyle.js 176

Gets the object defining the style using the 3D Tiles Styling language.
默认值: {}

translucencyByDistance : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 871

Gets or sets the StyleExpression object used to evaluate the style's translucencyByDistance property. Alternatively a string or object defining a vec4 style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a Cartesian4.

This expression is only applicable to point features in a Vector tile.

使用示例:
const style = new Cesium.Cesium3DTileStyle();
// Override translucencyByDistance expression with a string
style.translucencyByDistance = 'vec4(1.5e2, 1.0, 1.5e7, 0.2)';
style.translucencyByDistance.evaluate(feature); // returns a Cartesian4
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

verticalOrigin : StyleExpression
engine/Source/Scene/Cesium3DTileStyle.js 1193

Gets or sets the StyleExpression object used to evaluate the style's verticalOrigin property. Alternatively a string or object defining a number style can be used. The getter will return the internal Expression or ConditionsExpression, which may differ from the value provided to the setter.

The expression must return a VerticalOrigin.

This expression is only applicable to point features in a Vector tile.

使用示例s:
const style = new Cesium3DTileStyle({
    verticalOrigin : VerticalOrigin.TOP
});
style.verticalOrigin.evaluate(feature); // returns a VerticalOrigin
const style = new Cesium.Cesium3DTileStyle();
// Override verticalOrigin expression with a custom function
style.verticalOrigin = {
    evaluate : function(feature) {
        return VerticalOrigin.CENTER;
    }
};
Experimental

This feature is using part of the 3D Tiles spec that is not final and is subject to change without Cesium's standard deprecation policy.

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