<%--
Created by IntelliJ IDEA.
User: sbortman
Date: Jan 21, 2010
Time: 9:54:28 AM
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" %>
Layout TestUnits:
Map Center:
Center Latitude (DD):
Center Longitude (DD):
// your own js code is here
var lon = ${centerLon};
var lat = ${centerLat};
var zoom = ${zoomLevel};
var map;
var layer;
var aoiLayer;
// define your init function
var init = function()
{
setupMapWidget();
setupBaseLayers();
//setupOverlayLayers();
setupAreaOfInterestLayer();
setupToolbar();
setupView();
};
var setView = function( e )
{
var bounds = map.getExtent();
%{--$("viewMinLon").value = bounds.left;--}%
%{--$("viewMaxLat").value = bounds.top;--}%
%{--$("viewMaxLon").value = bounds.right;--}%
%{--$("viewMinLat").value = bounds.bottom;--}%
}
var setCenterText = function( e )
{
var center = map.getCenter();
$("centerLon").value = center.lon;
$("centerLat").value = center.lat;
}
var resized = function( mapWidth, mapHeight )
{
//alert( "B: " + mapWidth + " " + mapHeight );
Dom.get( "map" ).style.width = mapWidth + "px";
Dom.get( "map" ).style.height = mapHeight + "px";
map.updateSize( );
}
var clearAOI = function ( e )
{
aoiLayer.destroyFeatures();
// HACK - Need a better way to this
%{--$("aoiMinLon").value = ""--}%
%{--$("aoiMaxLat").value = ""--}%
%{--$("aoiMaxLon").value = ""--}%
%{--$("aoiMinLat").value = ""--}%
}
var setAOI = function ( e )
{
var geom = e.feature.geometry;
var bounds = geom.getBounds();
var feature = new OpenLayers.Feature.Vector(geom);
// HACK - Need a better way to this
%{--$("aoiMinLon").value = bounds.left--}%
%{--$("aoiMaxLat").value = bounds.top--}%
%{--$("aoiMaxLon").value = bounds.right--}%
%{--$("aoiMinLat").value = bounds.bottom--}%
aoiLayer.destroyFeatures();
aoiLayer.addFeatures(feature, {silent: true});
}
var zoomIn = function ()
{
map.zoomIn();
}
var zoomOut = function ()
{
map.zoomOut();
}
var setupMapWidget = function()
{
map = new OpenLayers.Map('map', {controls: []});
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.addControl(new OpenLayers.Control.PanZoom());
map.addControl(new OpenLayers.Control.MousePosition());
map.addControl(new OpenLayers.Control.Scale());
map.addControl(new OpenLayers.Control.ScaleLine());
map.events.register("moveend", map, setCenterText);
map.events.register("zoomend", map, setView );
}
var setupBaseLayers = function()
{
map.addLayer( new OpenLayers.Layer.WMS('${it.title}', '${it.url}',
{layers: '${it.name}', format: 'image/jpeg' },
{'isBaseLayer': true}, {buffer:0}));
}
var setupOverlayLayers = function ()
{
map.addLayer( new OpenLayers.Layer.WMS('${it.title}', '${it.url}',
{layers: '${it.name}', format: 'image/png', transparent: true },
{'isBaseLayer': false}, {buffer:0}));
}
var setupAreaOfInterestLayer = function ()
{
aoiLayer = new OpenLayers.Layer.Vector("Area of Interest");
aoiLayer.events.register("featureadded", aoiLayer, setAOI);
map.addLayer(aoiLayer);
%{--var aoiMinLon = "${queryParams?.aoiMinLon ?: 0}";--}%
%{--var aoiMinLat = "${queryParams?.aoiMinLat ?: 0}";--}%
%{--var aoiMaxLon = "${queryParams?.aoiMaxLon ?: 0}";--}%
%{--var aoiMaxLat = "${queryParams?.aoiMaxLat ?: 0}";--}%
%{--if ( aoiMinLon && aoiMinLat && aoiMaxLon && aoiMaxLat )--}%
%{--{--}%
%{--var bounds = new OpenLayers.Bounds( aoiMinLon, aoiMinLat, aoiMaxLon, aoiMaxLat );--}%
%{--var feature = new OpenLayers.Feature.Vector(bounds.toGeometry());--}%
%{--aoiLayer.addFeatures(feature, {silent: true});--}%
%{--}--}%
}
var setupToolbar = function ()
{
var controls = [];
var defaultControl;
// Drag Pan
controls.push(new OpenLayers.Control.MouseDefaults({title:'Drag to recenter map'}));
// Zoom Box
var zoomBox = new OpenLayers.Control.ZoomBox(
{title:"Zoom into an area by clicking and dragging"});
controls.push(zoomBox);
defaultControl = zoomBox;
// Zoon In
var zoomInButton = new OpenLayers.Control.Button({title:'Zoom in',
displayClass: "olControlZoomIn",
trigger: zoomIn
});
controls.push(zoomInButton);
// Zoom Out
var zoomOutButton = new OpenLayers.Control.Button({title:'Zoom out',
displayClass: "olControlZoomOut",
trigger: zoomOut
});
controls.push(zoomOutButton);
// Navigation History
var nav = new OpenLayers.Control.NavigationHistory({
nextOptions: {title: "Next View"},
previousOptions: {title: "Previous View"}
});
map.addControl(nav);
controls.push(nav.next);
controls.push(nav.previous);
// Zoom to Max Extent
controls.push(new OpenLayers.Control.ZoomToMaxExtent({title:"Zoom to the max extent"}));
// Area of Interest
if ( aoiLayer )
{
var polyOptions = {sides: 4, irregular: true};
var polygonControl = new OpenLayers.Control.DrawFeature(aoiLayer, OpenLayers.Handler.RegularPolygon,
{handlerOptions: polyOptions, title: "Specify Area of Interest"});
var button1 = new OpenLayers.Control.Button({title:'Clear Area of Interest',
displayClass: "olControlClearAreaOfInterest",
trigger: clearAOI
});
controls.push(polygonControl);
controls.push(button1);
}
// Measure Distance Button
var measureDistanceButton = new OpenLayers.Control.Measure(OpenLayers.Handler.Path, {
title: "Measure Distance",
displayClass: "olControlMeasureDistance",
eventListeners:
{
measure: function(evt)
{
//alert("Distance: " + evt.measure.toFixed(2) + evt.units);
document.getElementById('distanceMeasurement').innerHTML = "Distance: " + (evt.measure.toFixed(2) + evt.units) + " Clear Measurement";
}
}
});
controls.push(measureDistanceButton);
// Measure Area Button
var measureAreaButton = new OpenLayers.Control.Measure(OpenLayers.Handler.Polygon, {
title: "Measure Area",
displayClass: "olControlMeasureArea",
eventListeners:
{
measure: function(evt)
{
//alert("Area: " + evt.measure.toFixed(2) + evt.units);
document.getElementById('areaMeasurement').innerHTML = "Area: " + (evt.measure.toFixed(2) + evt.units) + " Clear Measurement";
}
}
});
controls.push(measureAreaButton);
//
// Setup the container for the toolbar
var container = $("panel2");
var panel = new OpenLayers.Control.Panel(
{div: container,defaultControl: defaultControl,'displayClass': 'olControlPanel'}
);
panel.addControls(controls);
map.addControl(panel);
}
var setupView = function()
{
map.setCenter( new OpenLayers.LonLat( lon, lat ), zoom );
}