GUI -- TopoView - Migrated helper functions to topoModel.js.
- moved randomized functions to random.js (so we can mock them).
Change-Id: Ic56ce64c036d36f34798f0df9f03a7d09335a2ab
diff --git a/web/gui/src/main/webapp/app/fw/util/random.js b/web/gui/src/main/webapp/app/fw/util/random.js
new file mode 100644
index 0000000..2298a94
--- /dev/null
+++ b/web/gui/src/main/webapp/app/fw/util/random.js
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2014,2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- Random -- Encapsulated randomness
+ */
+(function () {
+ 'use strict';
+
+ var $log, fs;
+
+ var halfRoot2 = 0.7071;
+
+ // given some value, s, returns an integer between -s/2 and s/2
+ // e.g. s = 100; result in the range [-50..50)
+ function spread(s) {
+ return Math.floor((Math.random() * s) - s / 2);
+ }
+
+ // for a given dimension, d, choose a random value somewhere between
+ // 0 and d where the value is within (d / (2 * sqrt(2))) of d/2.
+ function randDim(d) {
+ return d / 2 + spread(d * halfRoot2);
+ }
+
+ angular.module('onosUtil')
+ .factory('RandomService', ['$log', 'FnService',
+
+ function (_$log_, _fs_) {
+ $log = _$log_;
+ fs = _fs_;
+
+ return {
+ spread: spread,
+ randDim: randDim
+ };
+ }]);
+}());