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josm.js
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josm.js
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function josm_load_and_zoom_stops() {
var stop_table = document.getElementById( "gtfs-single-trip" );
var url = '';
if ( stop_table ) {
var stop_listnode = stop_table.getElementsByTagName( "tbody" )[0];
var stop_list = stop_listnode.getElementsByTagName( "tr" );
// evaluate all gtfs-single-trip rows backwards, so that we stop at the start of the route
for ( var i = stop_list.length-1; i >= 0; i-- )
{
var stop_node = stop_list[i];
var sub_td = stop_node.getElementsByTagName( "td" );
var lat = "";
var lon = "";
// evaluate all columns of gtfs-single-trip rows
for ( var j = 0; j < sub_td.length; j++ )
{
var keyvalue = sub_td[j];
if ( keyvalue.firstChild ) {
var value = keyvalue.firstChild.data;
}
else {
var value = "";
}
var key = keyvalue.getAttribute("class");
if ( key == "gtfs-lat" )
{
lat = value;
}
else if ( key == "gtfs-lon")
{
lon = value;
}
}
resp = download_here( lat, lon, 15 );
if ( !resp.match(/OK/) ) {
return;
}
}
}
}
function download_here( lat, lon, offset ) {
const Http = new XMLHttpRequest();
const JOSM_Url = 'http://127.0.0.1:8111/load_and_zoom?new_layer=false';
const R = 6378137; // radius of earth in meters
if ( lat != "" && lon != "" && offset > 0 ) {
//offsets in meters
dn = 10;
de = 10;
//Coordinate offsets in radians
dLat = dn/R;
dLon = de/(R*Math.cos(Math.PI*parseFloat(lat)/180));
//OffsetPosition, decimal degrees
top_lat = parseFloat(lat) + dLat * 180/Math.PI;
right_lon = parseFloat(lon) + dLon * 180/Math.PI;
bottom_lat = parseFloat(lat) - dLat * 180/Math.PI;
left_lon = parseFloat(lon) - dLon * 180/Math.PI;
url = `${JOSM_Url}&left=${left_lon}&right=${right_lon}&top=${top_lat}&bottom=${bottom_lat}`;
// console.log( 'Lat: ' + lat );
// console.log( 'Lon: ' + lon );
// console.log( 'Left: ' + left_lon );
// console.log( 'Right: ' + right_lon );
// console.log( 'Top: ' + top_lat );
// console.log( 'Bottom: ' + bottom_lat );
// console.log( 'Send: ' + url );
Http.open( "GET", url, false );
Http.send();
Http.onreadystatechange = (e) => {
console.log( '>' + Http.responseText + '<' );
}
}
return Http.responseText;
}
function route_master_osm() {
var feed = document.getElementById( "feed" ).firstChild.data;
var route_short_name = document.getElementById( "route_short_name" ).firstChild.data;
var relation_table = document.getElementById( "osm-route-master" );
if ( relation_table ) {
var relation_tablebody = relation_table.getElementsByTagName( "tbody" )[0];
var tag_list = relation_tablebody.getElementsByTagName( "tr" );
var osm_xml;
osm_xml = "<?xml version='1.0' encoding='UTF-8'?>\r\n";
osm_xml += "<osm version='0.6' upload='never' generator='PTNA-GTFS'>\r\n";
osm_xml += " <relation id='-3000' action='create'>\r\n";
// evaluate all osm-route-master rows
for ( var i = 0; i < tag_list.length; i++ )
{
var tag_node = tag_list[i];
var sub_td = tag_node.getElementsByTagName( "td" );
// evaluate 1st and 2nd column of osm-route-master rows
osm_xml += " <tag k='" + sub_td[0].innerText.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'")
+ "' v='" + sub_td[1].innerText.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'")
+ "' />\r\n";
}
osm_xml += " </relation>\r\n";
osm_xml += "</osm>\r\n";
// create file
var filename = feed + "_Route_Master_" + route_short_name + ".osm";
var element = document.createElement('a');
element.setAttribute( 'href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(osm_xml) );
element.setAttribute('download', filename);
element.style.display = 'none';
document.body.appendChild(element);
element.click();
document.body.removeChild(element);
}
}
function copy_to_clipboard( id, success_msg, error_msg ) {
var relation_table = document.getElementById( id );
if ( relation_table ) {
var relation_tablebody = relation_table.getElementsByTagName( "tbody" )[0];
var tag_list = relation_tablebody.getElementsByTagName( "tr" );
var clipboard;
var key;
var value;
clipboard = "";
// evaluate all rows
for ( var i = 0; i < tag_list.length; i++ )
{
var tag_node = tag_list[i];
var sub_td = tag_node.getElementsByTagName( "td" );
// evaluate 1st and 2nd column of rows
key = sub_td[0].innerText;
value = sub_td[1].innerText;
if ( key === 'colour' &&
(value.toLowerCase === '#ffffff'.toLowerCase ||
value.toLowerCase === '#fff'.toLowerCase ) )
{
continue;
}
clipboard += key + '=' + value + "\r\n";
}
navigator.clipboard.writeText(clipboard);
// if ( success_msg ) {
// alert( success_msg + ":\r\n" + clipboard );
// } else {
// alert( "Copied to Clipboard:\r\n\r\n" + clipboard );
// }
} else {
if ( error_msg ) {
alert( error_msg + ": " + id );
} else {
alert( "Could not find table with ID: " + id );
}
}
}
function route_osm() {
var feed = document.getElementById( "feed" ).firstChild.data;
var route_short_name = document.getElementById( "route_short_name" ).firstChild.data;
var trip_id = document.getElementById( "trip_id" ).firstChild.data;
var stop_table = document.getElementById( "gtfs-single-trip" );
var relation_table = document.getElementById( "osm-route" );
var osm_xml = "";
var member_list = "";
if ( stop_table || relation_table ) {
osm_xml = "<?xml version='1.0' encoding='UTF-8'?>\r\n";
osm_xml += "<osm version='0.6' upload='never' generator='PTNA-GTFS'>\r\n";
}
if ( stop_table ) {
var stop_listnode = stop_table.getElementsByTagName( "tbody" )[0];
var stop_list = stop_listnode.getElementsByTagName( "tr" );
var lat = "";
var lon = "";
var stop_name = "";
var stop_id = "";
var node_id = -10000;
var node_id_of_stop_id = {};
// evaluate all gtfs-single-trip rows
for ( var i = 0; i < stop_list.length; i++ ) {
var stop_node = stop_list[i];
var sub_td = stop_node.getElementsByTagName( "td" );
// evaluate all columns of gtfs-single-trip rows
for ( var j = 0; j < sub_td.length; j++ ) {
var keyvalue = sub_td[j];
if ( keyvalue.firstChild ) {
var value = keyvalue.firstChild.data;
}
else {
var value = "";
}
var key = keyvalue.getAttribute("class");
if ( key == "gtfs-lat" ) {
lat = value;
}
else if ( key == "gtfs-lon") {
lon = value;
}
else if ( key == "gtfs-stop-name") {
stop_name = value.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'");;
}
else if ( key == "gtfs-id") {
stop_id = value.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'");;
}
}
if ( lat && lon && stop_name && stop_id ) {
if ( ! node_id_of_stop_id[stop_id] ) {
node_id_of_stop_id[stop_id] = node_id--;
osm_xml += " <node id='" + node_id_of_stop_id[stop_id] + "' action='create' lat='" + lat + "' lon='" + lon + "'>\r\n";
osm_xml += " <tag k='name' v='" + stop_name + "' />\r\n";
osm_xml += " <tag k='gtfs:stop_id' v='" + stop_id + "' />\r\n";
osm_xml += " <tag k='public_transport' v='platform' />\r\n";
osm_xml += " </node>\r\n";
}
member_list += " <member type='node' ref='" + node_id_of_stop_id[stop_id] + "' role='platform' />\r\n";
}
}
}
if ( relation_table ) {
var relation_tablebody = relation_table.getElementsByTagName( "tbody" )[0];
var tag_list = relation_tablebody.getElementsByTagName( "tr" );
osm_xml += " <relation id='-4000' action='create'>\r\n";
osm_xml += member_list;
// evaluate all osm-route rows
for ( var i = 0; i < tag_list.length; i++ ) {
var tag_node = tag_list[i];
var sub_td = tag_node.getElementsByTagName( "td" );
// evaluate 1st and 2nd column of osm-route rows
osm_xml += " <tag k='" + sub_td[0].innerText.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'")
+ "' v='" + sub_td[1].innerText.replace(/&/g, "&")
.replace(/</g, "<")
.replace(/>/g, ">")
.replace(/"/g, """)
.replace(/'/g, "'")
+ "' />\r\n";
}
osm_xml += " </relation>\r\n";
}
if ( stop_table || relation_table ) {
osm_xml += "</osm>\r\n";
// create file
var filename = feed + "_Route_" + route_short_name + "_" + trip_id + ".osm";
var element = document.createElement('a');
element.setAttribute( 'href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(osm_xml) );
element.setAttribute('download', filename);
element.style.display = 'none';
document.body.appendChild(element);
element.click();
document.body.removeChild(element);
}
}