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add support for setting a specific marker location on the map.

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This commit is contained in:
Christopher Schmidt 2008-04-30 02:50:53 +00:00
parent 2d56ad8d84
commit f67ffb6ebb
2 changed files with 60 additions and 15 deletions
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7
app/views/export/_start.rhtml
View file

@ -58,7 +58,12 @@
<div id="export_html">
<p class="export_heading">Options</p>
<div class="export_details">
<p><%= check_box_tag("html_marker", "true") %> Include Marker on Map</p>
<p>
<a id='add_marker' href="#">Add a marker to the map</a>
<div id="marker_inputs" style="display:none">
Lat: <input type="text" id="marker_lat" size="9" /> Lon: <input type="text" id="marker_lon" size="9" />
</div>
</p>
</div>
<p class="export_heading">Output</p>

68
app/views/export/start.rjs
View file

@ -3,6 +3,8 @@ page.replace_html :sidebar_content, :partial => 'start'
page << <<EOJ
var vectors;
var box;
var markerLayer;
var markerControl;
function startExport() {
vectors = new OpenLayers.Layer.Vector("Vector Layer", {
@ -43,6 +45,7 @@ page << <<EOJ
$("exportanchor").className = "";
clearBox();
clearMarker();
map.events.unregister("moveend", map, mapMoved);
map.removeLayer(vectors);
}
@ -92,6 +95,49 @@ page << <<EOJ
$("drag_box").innerHTML = "Manually select a different area";
}
function startMarker() {
$("add_marker").innerHTML='Click on the map to add a marker';
if (!markerLayer) {
markerLayer = new OpenLayers.Layer.Vector("",{displayInLayerSwitcher: false});
markerControl = new OpenLayers.Control.DrawFeature(markerLayer, OpenLayers.Handler.Point);
map.addLayer(markerLayer);
map.addControl(markerControl);
markerLayer.events.on({"featureadded": endMarker});
}
markerLayer.destroyFeatures();
markerControl.activate();
return false;
}
$("add_marker").onclick = startMarker;
function endMarker(event) {
markerControl.deactivate();
$("add_marker").innerHTML='Change marker position';
$("marker_inputs").style.display="block";
var epsg4326 = new OpenLayers.Projection("EPSG:4326");
var epsg900913 = new OpenLayers.Projection("EPSG:900913");
var geom = event.feature.geometry.clone().transform( epsg900913, epsg4326 );
$("marker_lon").value = geom.x.toFixed(5);
$("marker_lat").value = geom.y.toFixed(5);
htmlUrlChanged();
}
function clearMarker() {
$("marker_lon").value = "";
$("marker_lat").value = "";
$("marker_inputs").style.display = "none";
$("add_marker").innerHTML='Add a marker to the map';
if (markerLayer) {
markerControl.destroy();
markerLayer.destroy();
markerLayer = null;
markerControl = null;
}
}
function mapMoved() {
setBounds(map.getExtent());
validateControls();
@ -109,7 +155,7 @@ page << <<EOJ
$("maxlat").value = Math.round(bounds.top * decimals) / decimals;
mapnikSizeChanged();
htmlBoundsChanged();
htmlUrlChanged();
}
function clearBox() {
@ -160,18 +206,13 @@ page << <<EOJ
}
}
function htmlBoundsChanged() {
function htmlUrlChanged() {
var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
var projBounds = bounds.clone().transform(new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection("EPSG:900913"));
var zoom = map.getZoomForExtent(projBounds);
var center = bounds.getCenterLonLat();
var url = "http://#{SERVER_URL}/export/embed.html?lat=" + center.lat.toFixed(5) + "&lon=" + center.lon.toFixed(5) + "&zoom=" + zoom;
if ($("html_marker").checked) {
url += "&marker=true";
}
var html = '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="'+url+'"></iframe>';
var url = "http://#{SERVER_URL}/export/embed.html?bbox=" + bounds.toBBOX();
if ($("marker_lat").value && $("marker_lon").value) {
url += "&marker=" + $("marker_lat").value + "," + $("marker_lon").value;
}
var html = '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="'+url+'" style="border: 1px solid black"></iframe>';
$("export_html_text").value = html;
if ($("format_html").checked) {
@ -179,8 +220,6 @@ page << <<EOJ
}
}
$("html_marker").onclick = htmlBoundsChanged;
function formatChanged() {
$("export_commit").style.display = "inline";
@ -212,6 +251,7 @@ page << <<EOJ
$("export_html_text").select();
} else {
$("export_html").style.display = "none";
clearMarker();
}
validateControls();