- var bounds = getBounds();
-
- var tooLarge = bounds.getSize() > OSM.MAX_REQUEST_AREA;
- if (tooLarge) {
- $("#export_osm_too_large").show();
- } else {
- $("#export_osm_too_large").hide();
- }
-
- var max_scale = maxMapnikScale();
- var disabled = true;
-
- if ($("#format_osm").prop("checked")) {
- disabled = tooLarge;
- } else if ($("#format_mapnik").prop("checked")) {
- disabled = $("#mapnik_scale").val() < max_scale;
- }
-
- $("#export_commit").prop("disabled", disabled);
- $("#mapnik_max_scale").html(roundScale(max_scale));
- }
-
- function htmlUrlChanged() {
- var bounds = getBounds();
- var layerName = getMapBaseLayer().keyid;
-
- var url = "http://" + OSM.SERVER_URL + "/export/embed.html?bbox=" + bounds.toBBOX() + "&layer=" + layerName;
- var markerUrl = "";
-
- if ($("#marker_lat").val() && $("#marker_lon").val()) {
- markerUrl = "&mlat=" + $("#marker_lat").val() + "&mlon=" + $("#marker_lon").val();
- url += "&marker=" + $("#marker_lat").val() + "," + $("#marker_lon").val();
- }
-
- var html = '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="'+url+'" style="border: 1px solid black"></iframe>';
-
- // Create "larger map" link
- var center = bounds.getCenter();
-
- var zoom = map.getBoundsZoom(bounds);
-
- var layers = getMapLayers();
-
- var text = I18n.t('export.start_rjs.view_larger_map');
- var escaped = [];
-
- for (var i = 0; i < text.length; ++i) {
- var c = text.charCodeAt(i);
- escaped.push(c < 127 ? text.charAt(i) : "&#" + c + ";");
- }
-
- html += '<br /><small><a href="http://' + OSM.SERVER_URL + '/?lat='+center.lat+'&lon='+center.lng+'&zoom='+zoom+'&layers='+layers+markerUrl+'">'+escaped.join("")+'</a></small>';
-
- $("#export_html_text").val(html);
-
- if ($("#format_html").prop("checked")) {
- $("#export_html_text").prop("selected", true);
- }
- }
-
- function formatChanged() {
- $("#export_commit").show();
-
- if ($("#format_osm").prop("checked")) {
- $("#export_osm").show();
- } else {
- $("#export_osm").hide();
- }
-
- if ($("#format_mapnik").prop("checked")) {
- $("#mapnik_scale").val(getScale());
- $("#export_mapnik").show();
-
- mapnikSizeChanged();
- } else {
- $("#export_mapnik").hide();
- }
-
- if ($("#format_html").prop("checked")) {
- $("#export_html").show();
- $("#export_commit").hide();
- $("#export_html_text").prop("selected", true);
- } else {
- $("#export_html").hide();
-
- clearMarker();
- }
-
- validateControls();
- }
-
- function maxMapnikScale() {
- var bounds = getMercatorBounds();
-
- return Math.floor(Math.sqrt(bounds.getWidth() * bounds.getHeight() / 0.3136));
- }
-
- function mapnikImageSize(scale) {
- var bounds = getMercatorBounds();
-
- return {w: Math.round(bounds.getWidth() / scale / 0.00028),
- h: Math.round(bounds.getHeight() / scale / 0.00028)};
- }
-
- function roundScale(scale) {
- var precision = 5 * Math.pow(10, Math.floor(Math.LOG10E * Math.log(scale)) - 2);
-
- return precision * Math.ceil(scale / precision);
- }
-
- function mapnikSizeChanged() {
- var size = mapnikImageSize($("#mapnik_scale").val());
-
- $("#mapnik_image_width").html(size.w);
- $("#mapnik_image_height").html(size.h);
-
- validateControls();