-<% form_tag :action => 'next' do %>
+<% form_tag :action => "finish" do %>
<p class="export_heading">Area to Export</p>
<div class="export_bounds">
- <%= text_field('export', 'maxlat', { :size => 10, :class => "export_bound" }) %>
+ <%= text_field_tag('maxlat', nil, :size => 10, :class => "export_bound") %>
<br/>
- <%= text_field('export', 'minlon', { :size => 10, :class => "export_bound" }) %>
- <%= text_field('export', 'maxlon', { :size => 10, :class => "export_bound" }) %>
+ <%= text_field_tag('minlon', nil, :size => 10, :class => "export_bound") %>
+ <%= text_field_tag('maxlon', nil, :size => 10, :class => "export_bound") %>
<br/>
- <%= text_field('export', 'minlat', { :size => 10, :class => "export_bound" }) %>
+ <%= text_field_tag('minlat', nil, :size => 10, :class => "export_bound") %>
+ <p class="export_hint">
+ Drag a box with control held down to select an area to export
+ </p>
</div>
<p class="export_heading">Format to Export</p>
<div class="export_details">
- <%= radio_button('export', 'format', 'osm' ) %>OpenStreetMap XML Data
- <br/>
- <%= radio_button('export', 'format', 'png' ) %>PNG Image
- <br/>
- <%= radio_button('export', 'format', 'pdf' ) %>PDF Document
- <br/>
- <%= radio_button('export', 'format', 'svg' ) %>SVG Document
+ <p>
+ <%= radio_button_tag("format", "osm") %>OpenStreetMap XML Data
+ <br/>
+ <%= radio_button_tag("format", "mapnik") %>Mapnik Image
+ <br/>
+ <%= radio_button_tag("format", "osmarender") %>Osmarender Image
+ </p>
</div>
<div id="export_osm">
<p class="export_heading">Licence</p>
<div class="export_details">
- <p>OSM license agreement blah blah blah...</p>
- </div
+ <p>OpenStreetMap data is licensed under the <a href="http://creativecommons.org/licenses/by-sa/2.0/">Creative Commons Attribution-ShareAlike 2.0 license</a>.</p>
+ </div>
</div>
<div id="export_mapnik">
<p class="export_heading">Options</p>
<div class="export_details">
- <p>Scale 1 : <%= text_field('export', 'mapnik_scale', { :size => 10 }) %></p>
+ <p>Format <%= select_tag("mapnik_format", options_for_select([["PNG", "png"], ["JPEG", "jpeg"], ["SVG", "svg"], ["PDF", "pdf"], ["Postscript", "ps"]], "png")) %></p>
+ <p>Scale 1 : <%= text_field_tag("mapnik_scale", nil, :size => 8) %> <span class="export_hint">(max 1 : <span id="max_scale"></span>)</span></p>
</div>
</div>
+ <div id="export_osmarender">
+ <p class="export_heading">Options</p>
+
+ <div class="export_details">
+ <p>Format <%= select_tag("osmarender_format", options_for_select([["PNG", "png"], ["JPEG", "jpeg"]], "png")) %></p>
+ <p>Zoom <%= select_tag("osmarender_zoom", options_for_select([4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17])) %></p>
+ </div>
+ </div>
+
+ <div class="export_buttons">
+ <p><%= submit_tag "Export", :id => "export_commit" %></p>
+ </div>
+
<% end %>
<script type="text/javascript">
<!--
+ var vectors;
+ var box;
+
function startExport() {
- var vectors = new OpenLayers.Layer.Vector("Vector Layer", {
- displayInLayerSwitcher: false,
+ vectors = new OpenLayers.Layer.Vector("Vector Layer", {
+ displayInLayerSwitcher: false
});
map.addLayer(vectors);
- var box = new OpenLayers.Control.DrawFeature(vectors, OpenLayers.Handler.RegularPolygon, {
+ box = new OpenLayers.Control.DrawFeature(vectors, OpenLayers.Handler.RegularPolygon, {
handlerOptions: {
keyMask: OpenLayers.Handler.MOD_CTRL,
sides: 4,
box.activate();
map.events.register("moveend", map, mapMoved);
+
+ openSidebar({ onclose: stopExport });
+
updateRegion(map.getExtent());
+
+ if (map.baseLayer.name == "Mapnik") {
+ $("format_mapnik").checked = true;
+ } else if (map.baseLayer.name == "Osmarender") {
+ $("format_osmarender").checked = true;
+ }
+
+ formatChanged();
+
+ $("viewanchor").className = "";
+ $("exportanchor").className = "active";
+ }
+
+ function stopExport() {
+ $("viewanchor").className = "active";
+ $("exportanchor").className = "";
+
+ map.events.unregister("moveend", map, mapMoved);
+ box.handler.clear();
+ map.removeLayer(vectors);
}
- function setFormat(format) {
- $("export_osm").style.display = "none";
- $("export_mapnik").style.display = "none";
- $("export_" + format).style.display = "inline";
+ function formatChanged() {
+ if ($("format_osm").checked) {
+ $("export_osm").style.display = "inline";
+ } else {
+ $("export_osm").style.display = "none";
+ }
+
+ if ($("format_mapnik").checked) {
+ $("mapnik_scale").value = roundScale(map.getScale());
+ $("export_mapnik").style.display = "inline";
+ } else {
+ $("export_mapnik").style.display = "none";
+ }
+
+ if ($("format_osmarender").checked) {
+ var zoom = Math.min(map.getZoom(), maxOsmarenderZoom());
+
+ $("osmarender_zoom").options.selectedIndex = zoom - 4;
+ $("export_osmarender").style.display = "inline";
+ } else {
+ $("export_osmarender").style.display = "none";
+ }
}
- $("export_format_osm").onclick = function() { setFormat("osm") };
- $("export_format_png").onclick = function() { setFormat("mapnik") };
- $("export_format_pdf").onclick = function() { setFormat("mapnik") };
- $("export_format_svg").onclick = function() { setFormat("mapnik") };
+ $("format_osm").onclick = function() { formatChanged() };
+ $("format_mapnik").onclick = function() { formatChanged() };
+ $("format_osmarender").onclick = function() { formatChanged() };
+
+ function boundsChanged() {
+ var epsg4326 = new OpenLayers.Projection("EPSG:4326");
+ var bounds = new OpenLayers.Bounds($("minlon").value,
+ $("minlat").value,
+ $("maxlon").value,
+ $("maxlat").value);
+
+ bounds.transform(epsg4326, map.getProjectionObject());
+
+ map.events.unregister("moveend", map, mapMoved);
+ map.zoomToExtent(bounds);
+
+ box.handler.clear();
+ box.handler.feature = new OpenLayers.Feature.Vector(bounds.toGeometry());
+ box.handler.layer.addFeatures([box.handler.feature], [box.handler.style]);
+ box.handler.layer.drawFeature(box.handler.feature, box.handler.style);
+ }
+
+ $("maxlat").onchange = function() { boundsChanged() };
+ $("minlon").onchange = function() { boundsChanged() };
+ $("maxlon").onchange = function() { boundsChanged() };
+ $("minlat").onchange = function() { boundsChanged() };
function mapMoved() {
updateRegion(map.getExtent());
}
function updateRegion(bounds) {
+ var epsg4326 = new OpenLayers.Projection("EPSG:4326");
var decimals = Math.pow(10, Math.floor(map.getZoom() / 3));
- var bl = mercatorToLonLat(new OpenLayers.LonLat(bounds.left, bounds.bottom));
- var tr = mercatorToLonLat(new OpenLayers.LonLat(bounds.right, bounds.top));
- $("export_maxlat").value = Math.round(tr.lat * decimals) / decimals;
- $("export_minlon").value = Math.round(bl.lon * decimals) / decimals;
- $("export_maxlon").value = Math.round(tr.lon * decimals) / decimals;
- $("export_minlat").value = Math.round(bl.lat * decimals) / decimals;
+ bounds.transform(map.getProjectionObject(), epsg4326);
+
+ $("minlon").value = Math.round(bounds.left * decimals) / decimals;
+ $("minlat").value = Math.round(bounds.bottom * decimals) / decimals;
+ $("maxlon").value = Math.round(bounds.right * decimals) / decimals;
+ $("maxlat").value = Math.round(bounds.top * decimals) / decimals;
+
+ if (bounds.getWidth() * bounds.getHeight() > 0.25) {
+ $("format_osm").disabled = true;
+ $("format_osm").checked = false;
+
+ formatChanged();
+ } else {
+ $("format_osm").disabled = false;
+ }
+
+ var max_zoom = maxOsmarenderZoom();
+ var max_scale = maxMapnikScale();
+
+ $("max_scale").innerHTML = roundScale(max_scale);
+
+ for (var o = 0; o < $("osmarender_zoom").options.length; o++) {
+ var option = $("osmarender_zoom").options[o];
+
+ if (option.value > max_zoom) {
+ option.disabled = true;
+ } else {
+ option.disabled = false;
+ }
+ }
+
+ if ($("osmarender_zoom").options.selectedIndex + 4 > max_zoom) {
+ $("osmarender_zoom").options.selectedIndex = max_zoom - 4;
+ }
+ }
+
+ function maxMapnikScale() {
+ var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
+ var epsg4326 = new OpenLayers.Projection("EPSG:4326");
+ var epsg900913 = new OpenLayers.Projection("EPSG:900913");
+
+ bounds.transform(epsg4326, epsg900913);
+
+ return Math.floor(Math.sqrt(bounds.getWidth() * bounds.getHeight() / 0.3136));
+ }
+
+ function maxOsmarenderZoom() {
+ var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
+ var xzoom = Math.LOG2E * Math.log(2000 * 1.40625 / bounds.getWidth());
+ var ymin = bounds.bottom * Math.PI / 180;
+ var ymax = bounds.top * Math.PI / 180;
+ var yzoom = Math.LOG2E * (Math.log(2000 * 2 * Math.PI) - Math.log(Math.log((Math.tan(ymax) + 1 / Math.cos(ymax)) / (Math.tan(ymin) + 1 / Math.cos(ymin)))))
+
+ return Math.floor(Math.min(xzoom, yzoom));
}
+ function roundScale(scale) {
+ var precision = 5 * Math.pow(10, Math.floor(Math.LOG10E * Math.log(scale)) - 2);
+
+ return precision * Math.ceil(scale / precision);
+ }
+
+ function validateScale() {
+ if ($("mapnik_scale").value < maxMapnikScale()) {
+ $("export_commit").disabled = true;
+ } else {
+ $("export_commit").disabled = false;
+ }
+ }
+
+ $("mapnik_scale").onchange = function() { validateScale() };
+
startExport();
// -->
</script>
projects / rails.git / blobdiff