Tidy up new box code.

[rails.git] / public / javascripts / map.js

diff --git a/public/javascripts/map.js b/public/javascripts/map.js
index cd130c784ff69fc93d12bced02c06156d5dab941..71edee56cdfda8431656c32b33bc91d64be66bf5 100644 (file)
--- a/public/javascripts/map.js
+++ b/public/javascripts/map.js
@@ -1,6 +1,7 @@
 var epsg4326 = new OpenLayers.Projection("EPSG:4326");
 var map;
 var markers;
 var epsg4326 = new OpenLayers.Projection("EPSG:4326");
 var map;
 var markers;

+var vectors;

 var popup;
 
 var nonamekeys = {
 var popup;
 
 var nonamekeys = {


@@ -13,6 +14,8 @@ var nonamekeys = {
 };
 
 OpenLayers._getScriptLocation = function () {
 };
 
 OpenLayers._getScriptLocation = function () {

+  // Should really have this file as an erb, so that this can return 
+  // the real rails root

    return "/openlayers/";
 }
 
    return "/openlayers/";
 }
 


@@ -30,7 +33,8 @@ function createMap(divName, options) {
       ],
       units: "m",
       maxResolution: 156543.0339,
       ],
       units: "m",
       maxResolution: 156543.0339,

-      numZoomLevels: 20
+      numZoomLevels: 20,
+      displayProjection: new OpenLayers.Projection("EPSG:4326")

    });
 
    var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {
    });
 
    var mapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik", {


@@ -79,6 +83,17 @@ function createMap(divName, options) {
       projection: "EPSG:900913"
    });
    map.addLayer(markers);
       projection: "EPSG:900913"
    });
    map.addLayer(markers);

+   
+   vectors = new OpenLayers.Layer.Vector("Vectors", {
+      displayInLayerSwitcher: false,
+      numZoomLevels: numZoomLevels,
+      maxExtent: new OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
+      maxResolution: 156543,
+      units: "m",
+      projection: "EPSG:900913"
+   });
+   map.addLayer(vectors);
+   

 
    return map;
 }
 
    return map;
 }


@@ -103,6 +118,19 @@ function addMarkerToMap(position, icon, description) {
    return marker;
 }
 
    return marker;
 }
 

+function addBoxToMap(boxbounds) {
+   var geometry = boxbounds.toGeometry().transform(epsg4326, map.getProjectionObject());
+   var box = new OpenLayers.Feature.Vector(geometry, {}, {
+      strokeWidth: 3,
+      strokeColor: '#0000ff',
+      fillOpacity: 0,
+   });
+   
+   vectors.addFeatures(box);
+
+   return box;
+}
+

 function openMapPopup(marker, description) {
    closeMapPopup();
 
 function openMapPopup(marker, description) {
    closeMapPopup();
 


@@ -126,11 +154,18 @@ function removeMarkerFromMap(marker){
    markers.removeMarker(marker);
 }
 
    markers.removeMarker(marker);
 }
 

+function removeBoxFromMap(box){
+   vectors.removeFeature(box);
+}
+

 function getMapCenter(center, zoom) {
    return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
 }
 
 function setMapCenter(center, zoom) {
 function getMapCenter(center, zoom) {
    return map.getCenter().clone().transform(map.getProjectionObject(), epsg4326);
 }
 
 function setMapCenter(center, zoom) {

+   zoom = parseInt(zoom);
+   var numzoom = map.getNumZoomLevels();
+   if (zoom >= numzoom) zoom = numzoom - 1;

    map.setCenter(center.clone().transform(epsg4326, map.getProjectionObject()), zoom);
 }
 
    map.setCenter(center.clone().transform(epsg4326, map.getProjectionObject()), zoom);
 }
 


@@ -138,7 +173,7 @@ function setMapExtent(extent) {
    map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
 }
 
    map.zoomToExtent(extent.clone().transform(epsg4326, map.getProjectionObject()));
 }
 

-function getMapExtent(extent) {
+function getMapExtent() {

    return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
 }
 
    return map.getExtent().clone().transform(map.getProjectionObject(), epsg4326);
 }