text: import ComponentDatatype from './ComponentDatatype.js';
  import defaultValue from './defaultValue.js';
  import defined from './defined.js';
  import defineProperties from './defineProperties.js';
  import DeveloperError from './DeveloperError.js';
  
      /**
       * Value and type information for per-instance geometry attribute that determines if the geometry instance has a distance display condition.
       *
       * @alias DistanceDisplayConditionGeometryInstanceAttribute
       * @constructor
       *
       * @param {Number} [near=0.0] The near distance.
       * @param {Number} [far=Number.MAX_VALUE] The far distance.
       *
       * @exception {DeveloperError} far must be greater than near.
       *
       * @example
       * var instance = new Cesium.GeometryInstance({
       *   geometry : new Cesium.BoxGeometry({
       *     vertexFormat : Cesium.VertexFormat.POSITION_AND_NORMAL,
       *     minimum : new Cesium.Cartesian3(-250000.0, -250000.0, -250000.0),
       *     maximum : new Cesium.Cartesian3(250000.0, 250000.0, 250000.0)
       *   }),
       *   modelMatrix : Cesium.Matrix4.multiplyByTranslation(Cesium.Transforms.eastNorthUpToFixedFrame(
       *     Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)), new Cesium.Cartesian3(0.0, 0.0, 1000000.0), new Cesium.Matrix4()),
       *   id : 'box',
       *   attributes : {
       *     distanceDisplayCondition : new Cesium.DistanceDisplayConditionGeometryInstanceAttribute(100.0, 10000.0)
       *   }
       * });
       *
       * @see GeometryInstance
       * @see GeometryInstanceAttribute
       */
      function DistanceDisplayConditionGeometryInstanceAttribute(near, far) {
          near = defaultValue(near, 0.0);
          far = defaultValue(far, Number.MAX_VALUE);
  
          //>>includeStart('debug', pragmas.debug);
          if (far <= near) {
              throw new DeveloperError('far distance must be greater than near distance.');
          }
          //>>includeEnd('debug');
  
          /**
           * The values for the attributes stored in a typed array.
           *
           * @type Float32Array
           *
           * @default [0.0, 0.0, Number.MAX_VALUE]
           */
          this.value = new Float32Array([near, far]);
      }
  
      defineProperties(DistanceDisplayConditionGeometryInstanceAttribute.prototype, {
          /**
           * The datatype of each component in the attribute, e.g., individual elements in
           * {@link DistanceDisplayConditionGeometryInstanceAttribute#value}.
           *
           * @memberof DistanceDisplayConditionGeometryInstanceAttribute.prototype
           *
           * @type {ComponentDatatype}
           * @readonly
           *
           * @default {@link ComponentDatatype.FLOAT}
           */
          componentDatatype : {
              get : function() {
                  return ComponentDatatype.FLOAT;
              }
          },
  
          /**
           * The number of components in the attributes, i.e., {@link DistanceDisplayConditionGeometryInstanceAttribute#value}.
           *
           * @memberof DistanceDisplayConditionGeometryInstanceAttribute.prototype
           *
           * @type {Number}
           * @readonly
           *
           * @default 3
           */
          componentsPerAttribute : {
              get : function() {
                  return 2;
              }
          },
  
          /**
           * When <code>true</code> and <code>componentDatatype</code> is an integer format,
           * indicate that the components should be mapped to the range [0, 1] (unsigned)
           * or [-1, 1] (signed) when they are accessed as floating-point for rendering.
           *
           * @memberof DistanceDisplayConditionGeometryInstanceAttribute.prototype
           *
           * @type {Boolean}
           * @readonly
           *
           * @default false
           */
          normalize : {
              get : function() {
                  return false;
              }
          }
      });
  
      /**
       * Creates a new {@link DistanceDisplayConditionGeometryInstanceAttribute} instance given the provided an enabled flag and {@link DistanceDisplayCondition}.
       *
       * @param {DistanceDisplayCondition} distanceDisplayCondition The distance display condition.
       * @returns {DistanceDisplayConditionGeometryInstanceAttribute} The new {@link DistanceDisplayConditionGeometryInstanceAttribute} instance.
       *
       * @exception {DeveloperError} distanceDisplayCondition.far must be greater than distanceDisplayCondition.near
       *
       * @example
       * var distanceDisplayCondition = new Cesium.DistanceDisplayCondition(100.0, 10000.0);
       * var instance = new Cesium.GeometryInstance({
       *   geometry : geometry,
       *   attributes : {
       *     distanceDisplayCondition : Cesium.DistanceDisplayConditionGeometryInstanceAttribute.fromDistanceDisplayCondition(distanceDisplayCondition)
       *   }
       * });
       */
      DistanceDisplayConditionGeometryInstanceAttribute.fromDistanceDisplayCondition = function(distanceDisplayCondition) {
          //>>includeStart('debug', pragmas.debug);
          if (!defined(distanceDisplayCondition)) {
              throw new DeveloperError('distanceDisplayCondition is required.');
          }
          if (distanceDisplayCondition.far <= distanceDisplayCondition.near) {
              throw new DeveloperError('distanceDisplayCondition.far distance must be greater than distanceDisplayCondition.near distance.');
          }
          //>>includeEnd('debug');
  
          return new DistanceDisplayConditionGeometryInstanceAttribute(distanceDisplayCondition.near, distanceDisplayCondition.far);
      };
  
      /**
       * Converts a distance display condition to a typed array that can be used to assign a distance display condition attribute.
       *
       * @param {DistanceDisplayCondition} distanceDisplayCondition The distance display condition value.
       * @param {Float32Array} [result] The array to store the result in, if undefined a new instance will be created.
       * @returns {Float32Array} The modified result parameter or a new instance if result was undefined.
       *
       * @example
       * var attributes = primitive.getGeometryInstanceAttributes('an id');
       * attributes.distanceDisplayCondition = Cesium.DistanceDisplayConditionGeometryInstanceAttribute.toValue(distanceDisplayCondition, attributes.distanceDisplayCondition);
       */
      DistanceDisplayConditionGeometryInstanceAttribute.toValue = function(distanceDisplayCondition, result) {
          //>>includeStart('debug', pragmas.debug);
          if (!defined(distanceDisplayCondition)) {
              throw new DeveloperError('distanceDisplayCondition is required.');
          }
          //>>includeEnd('debug');
  
          if (!defined(result)) {
              return new Float32Array([distanceDisplayCondition.near, distanceDisplayCondition.far]);
          }
          result[0] = distanceDisplayCondition.near;
          result[1] = distanceDisplayCondition.far;
          return result;
      };
  export default DistanceDisplayConditionGeometryInstanceAttribute;
  