函数 createDefaultProps

返回 {
    alpha: undefined | number;
    brightness: undefined | number;
    colorToAlpha: ReactiveVariable<
        undefined
        | [number, number, number, number],
    >;
    colorToAlphaThreshold: undefined | number;
    contrast: undefined | number;
    cutoutRectangle: ReactiveVariable<
        undefined
        | [west: number, south: number, east: number, north: number],
    >;
    dayAlpha: undefined | number;
    gamma: undefined | number;
    hasAlphaChannel: undefined | boolean;
    hue: undefined | number;
    imageryProvider: ReactiveVariable<undefined | CzmImageryProviderJsonType>;
    magnificationFilter: undefined | CzmTextureMagnificationFilterType;
    maximumAnisotropy: undefined | number;
    maximumTerrainLevel: undefined | number;
    minificationFilter: undefined | CzmTextureMinificationFilterType;
    minimumTerrainLevel: undefined | number;
    nightAlpha: undefined | number;
    pickFeaturesUrl: undefined | string;
    rectangle: ReactiveVariable<
        undefined
        | [west: number, south: number, east: number, north: number],
    >;
    saturation: undefined | number;
    show: undefined | boolean;
    splitDirection: undefined | ESJSplitDirectionType;
    targetID: undefined | string;
    zIndex: number;
}