Add min/maxResolution properties to rule options

src/objectliterals.jsdoc

@@ -700,6 +700,12 @@
 /**
  * @typedef {Object} ol.style.RuleOptions
  * @property {ol.expr.Expression|string|undefined} filter Filter.
+ * @property {number|undefined} maxResolution Optional maximum resolution.  If
+ *     a value is provided, the rule will apply at resolutions less than
+ *     this value.
+ * @property {number|undefined} minResolution Optional minimum resolution.  If
+ *     a value is provided, the rule will apply at resolutions greater than or
+ *     equal to this value.
  * @property {Array.<ol.style.Symbolizer>|undefined} symbolizers Symbolizers.
  */
 

src/ol/style/rule.js

@@ -39,6 +39,20 @@ ol.style.Rule = function(options) {
   this.symbolizers_ = goog.isDef(options.symbolizers) ?
       options.symbolizers : [];
 
+  /**
+   * @type {number}
+   * @private
+   */
+  this.minResolution_ = goog.isDef(options.minResolution) ?
+      options.minResolution : 0;
+
+  /**
+   * @type {number}
+   * @private
+   */
+  this.maxResolution_ = goog.isDef(options.maxResolution) ?
+      options.maxResolution : Infinity;
+
 };