Changeset 6180

Timestamp:

02/09/08 20:33:31 (10 months ago)

Author:

achipa

Message:

Time-aware layers
Read pubDate from GeoRSS
DateTime basetype to handle intervals
TimedPointTrack Layer class

Files:

• sandbox/achipa/openlayers/examples/timed-point-track-markers.html (added)
• sandbox/achipa/openlayers/lib/OpenLayers.js (modified) (2 diffs)
• sandbox/achipa/openlayers/lib/OpenLayers/BaseTypes.js (modified) (1 diff)
• sandbox/achipa/openlayers/lib/OpenLayers/BaseTypes/DateTime.js (added)
• sandbox/achipa/openlayers/lib/OpenLayers/Format/GeoRSS.js (modified) (2 diffs)
• sandbox/achipa/openlayers/lib/OpenLayers/Layer.js (modified) (3 diffs)
• sandbox/achipa/openlayers/lib/OpenLayers/Layer/GeoRSS.js (modified) (1 diff)
• sandbox/achipa/openlayers/lib/OpenLayers/Layer/TimedPointTrack.js (added)
• sandbox/achipa/openlayers/lib/OpenLayers/Renderer/SVG.js (modified) (1 diff)

sandbox/achipa/openlayers/lib/OpenLayers.js

@@ -79 +79 @@
-            "OpenLayers/BaseTypes/Pixel.js",
-            "OpenLayers/BaseTypes/Size.js",
+            "OpenLayers/BaseTypes/DateTime.js",
-            "OpenLayers/Console.js",
-            "Rico/Corner.js",
@@ -173 +174 @@
-            "OpenLayers/Layer/Vector.js",
-            "OpenLayers/Layer/PointTrack.js",
+            "OpenLayers/Layer/TimedPointTrack.js",
-            "OpenLayers/Layer/GML.js",
-            "OpenLayers/Style.js",

sandbox/achipa/openlayers/lib/OpenLayers/BaseTypes.js

@@ -10 +10 @@
- * @requires OpenLayers/BaseTypes/Bounds.js
- * @requires OpenLayers/BaseTypes/Element.js
+ * @requires OpenLayers/BaseTypes/DateTime.js
- */
-

sandbox/achipa/openlayers/lib/OpenLayers/Format/GeoRSS.js

@@ -186 +186 @@
-        );
-
+        var pubdate = this.getChildValue(item, "*", "pubDate");
+
-        /* If no link URL is found in the first child node, try the
-           href attribute */
@@ -202 +204 @@
-            "title": title,
-            "description": description,
-
+
+
-        };
-        var feature = new OpenLayers.Feature.Vector(geometry, data);

sandbox/achipa/openlayers/lib/OpenLayers/Layer.js

@@ -42 +42 @@
-     * {Array(String)} Supported application event types
-     */
-
+, "datetimechanged"
-        
-    /**
@@ -171 +171 @@
-    resolutions: null,
-    
+    /**
+     * APIProperty: datetimeIntervals
+     * {Array} A list of time Intervals which define the time periods in ascending
+     *     order.  If this is not set in the layer constructor, it will be set
+     *     based on other resolution related properties (maxExtent,
+     *     maxResolution, maxScale, etc.).
+     */
+    datetimeIntervals: null,
+    
+    /**
+     * APIProperty: currentDateTime
+     * {<OpenLayers.DateTime>} A moment or interval of time
+     */
+    currentDateTime: null,
+
-    /**
-     * APIProperty: maxExtent
@@ -1018 +1033 @@
-    },
-
+    /**
+     * Method: isTemporalLayer
+     * {Boolean} Whether or not the layer's features change through time. 
+     *    
+     */
+    isTemporalLayer: function () {
+    if (this.datetimeIntervals && this.datetimeIntervals.length > 0)
+            return true;
+    },
+ 
+    /**
+     * Method: setDateTime
+     * {Date} or {<OpenLayers.DateTime>} Sets the current date/time in the layers
+     *    
+     */
+    setDateTime: function (dt) {
+        if (!this.isTemporalLayer())
+            return;
+        
+        if (typeof dt == "OpenLayers.DateTime")
+            this.currentDateTime = dt;
+        else
+            this.currentDateTime = new OpenLayers.DateTime(dt);
+
+        this.events.triggerEvent("datetimechanged");
+    },
+
+    /**
+     * Method: getStartDateTime
+     * {Date} Returns the first date/time the layer is available for, null
+     *     if the layer has no temporal conotation
+     *    
+     */
+    getStartDateTime: function () {
+    if (!this.isTemporalLayer())
+            return null;
+
+        if (this.datetimeIntervals.length < 1)
+        return null;
+
+        return this.datetimeIntervals[0].from;
+    },
+
+    /**
+     * Method: getStopDateTime
+     * {Date} Returns the last date/time the layer is available for, null
+     *     if the layer has no temporal conotation
+     *    
+     */
+    getStopDateTime: function () {
+    if (!this.isTemporalLayer())
+            return null;
+
+        if (this.datetimeIntervals.length < 1)
+        return null;
+
+        return this.datetimeIntervals[datetimeIntervals.length -1].to;
+    },
+
-    CLASS_NAME: "OpenLayers.Layer"
-});

sandbox/achipa/openlayers/lib/OpenLayers/Layer/GeoRSS.js

@@ -190 +190 @@
-                             new OpenLayers.Size(250, 120);
-            
+            data.pubdate = feature.attributes.pubdate;
+
-            if (title || description) {
-                var contentHTML = '<div class="olLayerGeoRSSClose">[x]</div>'; 

sandbox/achipa/openlayers/lib/OpenLayers/Renderer/SVG.js

@@ -219 +219 @@
-            } else {
-                node.setAttributeNS(null, "r", style.pointRadius);
+                if (style.pointStyle == "pixel"){
+                    node.setAttributeNS(null, "point", "pixel");
+                }
-            }
-        }