/**
* Satellite trace web-service
* Author Denis Volkov (C) 2007-2009
*
* JavaScript functions
*
*/
function SatTr()
{
// Current images random
var imgRnd = 0;
// AJAX handler URL
var ajaxURL;
var CurrentTab = null;
// Current time and last reload time
var lastReloadTime = 0, lastTimestamp = 0;
// Zoom on framesets tab
var ZoomMax = 0, ZoomMin = ZoomCurrent = 3;
var ZoomMode = '';
// var ZoomCenter = '';
var MapScrollPos = null;
var MapType = 'ru';
var MapViewFrame = null;
var MapView = null;
var ImageCache = null;
var MainImageLoad = null;
// Pixel to lat/lon calculation
var Pixel2LatLon = {
tracks_ru: [16.896114195083, 0.13798572561459, 82.656826568266, -0.07380073800738],
tracks_world: [-182.842857, 0.2857142857, 93.957142857, -0.2857142857],
scale0: [17.558935361217, 0.018377693282636, 83.741198, -0.010194],
scale1: [17.338263257976, 0.036763152334671, 83.66966, -0.020387],
scale2: [17.70583262891, 0.073541842772612, 84.326496, -0.040816],
scale3: [17.41116751269, 0.14720812182741, 83.658545, -0.081301]
};
var afterImageLoad = null;
// OnLoad handler
this.onLoad = function()
{
var self = this;
// Setup ajax subsystem
ajaxURL = document.URL;
$.ajaxSetup({
url: document.URL,
type: 'post',
timeout: 30000,
error: this.makeHandler(this.onAjaxError),
success: this.makeHandler(this.onAjaxSuccess)
});
MapViewFrame = $('#map_view_frame')[0];
var mouseMove = this.makeHandler(this.onMapMouseMove);
var mouseDown = this.makeHandler(this.onMapMouseDown);
MainImageLoad = this.makeHandler(this.onMainImageLoad);
// Add tabs
$('#control_panel').tabs({
// fxAutoHeight: true,
onShow: this.makeHandler(this.onTabSwitched)
});
// Show current date
if (CurrentTab == 'cp_orbits' || CurrentTab == 'cp_region' )
{
$('#time_current')[0].checked = true;
$('#time_set_date').val('');
}
// Add control handlers
$('#sat_list input[type="checkbox"]').click(this.makeHandler(this.onSatelliteCheck));
$('#frames_list input[type="checkbox"]').click(this.makeHandler(this.onFramesetCheck));
$('#time_set').click(function(){ $('#time_set_date').focus(); });
$('#time_set_reload').click(this.makeHandler(this.onCustomTimeReload));
$('#region_calc').click(this.makeHandler(this.onRegionCalc));
$('#options_panel input[type="checkbox"]').click(this.makeHandler(this.onOptionsCheck));
$('#zoom_panel input').click(this.makeHandler(this.onZoomButtonClick));
$('#map_type_form input').click(this.makeHandler(this.onMapTypeClick));
// Start reload timer
window.setInterval(this.makeHandler(this.onReloadTimer), 1000);
// Update zoom panel
this.updateZoomPanel();
// Create content in frame
var frameDoc = GetDocument(MapViewFrame);
$('#map_view_frame').load(function(){
MapView = frameDoc.getElementById('map_view');
ImageCache = frameDoc.getElementById('img_cache');
$( MapView ).mousemove(mouseMove).mousedown(mouseDown).html('Waiting...');
self.onTabSwitched();
});
frameDoc.open();
frameDoc.write('<'+'?xml version="1.0" encoding="UTF-8"?'+'>'
+ ''
+ ''
+ '');
frameDoc.close();
}
// OnSatelliteCheck handler
this.onSatelliteCheck = function()
{
// Get new state of checkboxes
var checkedSatellites = [];
$('#sat_list input[type="checkbox"]').each(function(){
if(this.checked)
checkedSatellites.push(this.value);
});
// Send post request
$.ajax({
data: {
op: 'update',
satellites: checkedSatellites.join(',')
}
});
}
// onFramesetCheck handler
this.onFramesetCheck = function()
{
// Get new state of checkboxes
var checkedFramesets = [];
$('#frames_list input[type="checkbox"]').each(function(){
if(this.checked)
checkedFramesets.push(this.value);
});
// Send post request
$.ajax({
data: {
op: 'update',
framesets: checkedFramesets.join(',')
}
});
}
this.onOptionsCheck = function()
{
var options = {
op: 'update'
};
$('#options_panel input[type="checkbox"]').each(function(){
options[this.id] = (this.checked ? 1 : 0);
});
// Send post request
$.ajax({
data: options
});
}
this.onZoomButtonClick = function(obj)
{
var zoomId = obj.id;
if(ZoomMode != '')
{
$('#zoom_panel #' + ZoomMode).removeClass('pressed');
$(MapView).css('cursor', 'default');
if(ZoomMode == zoomId)
{
ZoomMode = '';
return;
}
}
if($('#zoom_panel #' + zoomId + '.disabled').size())
return;
ZoomMode = zoomId;
$('#zoom_panel #' + ZoomMode).addClass('pressed');
$(MapView).css('cursor', 'crosshair');
}
this.updateZoomPanel = function()
{
if(ZoomCurrent > ZoomMin)
ZoomCurrent = ZoomMin;
if(ZoomCurrent < ZoomMax)
ZoomCurrent = ZoomMax;
if(ZoomCurrent == ZoomMax)
$('#zoom_in').addClass('disabled').attr('disabled', 'disabled');
else
$('#zoom_in').removeClass('disabled').removeAttr('disabled');
if(ZoomCurrent == ZoomMin)
$('#zoom_out').addClass('disabled').attr('disabled', 'disabled');
else
$('#zoom_out').removeClass('disabled').removeAttr('disabled');
$('#cur_zoom').css('background-position', '0 ' + ((ZoomMin - ZoomCurrent) * -31) + 'px');
}
this.onMapMouseMove = function(obj, ev)
{
var event = ev[0];
var x = event.offsetX || event.layerX;
var y = event.offsetY || event.layerY;
var transformId = 'tracks_ru';
if(CurrentTab == 'cp_orbits')
transformId = 'tracks_' + MapType;
if(CurrentTab == 'cp_frames')
transformId = 'scale' + ZoomCurrent;
var transform = Pixel2LatLon[transformId];
var lon = transform[0] + x * transform[1];
lon = Math.round(lon * 100) / 100;
if(lon > 180)
lon = lon - 360;
var lat = transform[2] + y * transform[3];
lat = Math.round(lat * 100) / 100;
var coords = ' ';
if(lat >= -90 && lat <= 90 && lon >= -180 && lon <= 180)
coords = Math.abs(lat) + '°' + (lat >= 0 ? 'N ' : 'S ') + Math.abs(lon) + '°' + (lon >= 0 ? 'E' : 'W');
$('#coords_view').html(coords);
// $('#pos_test').css('left', x + 'px').css('top', y + 'px').html('x=' + x + ', y=' + y);
}
this.onMapMouseDown = function(obj, ev)
{
var event = ev[0];
var x = event.offsetX || event.layerX;
var y = event.offsetY || event.layerY;
if(ZoomMode == '')
return;
if(ZoomMode == 'zoom_in')
{
-- ZoomCurrent;
// ZoomCenter = { x: x * 2, y: y * 2 };
x *= 2;
y *= 2;
}
else if(ZoomMode == 'zoom_out')
{
++ ZoomCurrent;
// ZoomCenter = { x: x / 2, y: y / 2 };
x /= 2;
y /= 2;
}
ZoomMode = '';
$('#zoom_panel input').removeClass('pressed');
this.updateZoomPanel();
$(MapView).css('cursor', 'default');
var vpWidth = MapViewFrame.clientWidth;
var vpHeight = MapViewFrame.clientHeight;
var offsetLeft = Math.max(Math.round(x - vpWidth / 2), 0);
var offsetTop = Math.max(Math.round(y - vpHeight / 2), 0);
MapScrollPos = { x: offsetLeft, y: offsetTop };
$.ajax({
data: { op: 'update', zoom: ZoomCurrent }
});
// $('#pos_test').css('left', x + 'px').css('top', y + 'px').html('x=' + x + ', y=' + y);
}
this.onMapTypeClick = function()
{
if($('#map_type_ru')[0].checked)
MapType = 'ru';
if($('#map_type_world')[0].checked)
MapType = 'world';
$.ajax({
data: { op: 'update', map: MapType }
});
}
this.onTabSwitched = function(obj, args)
{
CurrentTab = GetCurrentTab();
this.reloadScene(true);
}
// Reload scene
this.reloadScene = function(switchTab, forTime)
{
imgRnd = Math.round((1. + Math.random()) * 1e9);
if(forTime == undefined)
forTime = lastTimestamp;
if(!forTime)
forTime = Math.floor((new Date()).getTime() / 1000);
// Replace content of map view area by scene image tiles
if(CurrentTab == 'cp_frames')
{
$('#options_panel').hide();
}
else
{
$('#options_panel').show();
}
var imageUrl = 'getimg.php?x=0&y=0&rnd=' + imgRnd
+ '&ts=' + forTime
+ '&mode=' + CurrentTab;
// imageUrl='img0/choose.gif';
ImageCache.innerHTML = '
';
$('img', ImageCache).load(MainImageLoad);
lastTimestamp = forTime;
}
// Prepare loaded map image, scroll if needed
this.onMainImageLoad = function(obj)
{
$(MapView).empty().append(obj);
// Position image after zoom
if(MapScrollPos)
{
var wnd = MapViewFrame.contentWindow;
wnd.scrollTo(MapScrollPos.x, MapScrollPos.y);
MapScrollPos = null;
}
}
// Reload timer handler
this.onReloadTimer = function()
{
this.DoReloadTimer(0);
}
this.DoReloadTimer=function(force_refresh)
{
if (!$('#show_autorefresh')[0].checked && lastReloadTime!=0 && force_refresh!=1)
return;
// Set current time
var now = new Date();
var hour = now.getUTCHours(), min = now.getUTCMinutes(), sec = now.getUTCSeconds();
var day = now.getUTCDate(), month = now.getUTCMonth() + 1, year = now.getUTCFullYear();
// var hour = now.getHours(), min = now.getMinutes(), sec = now.getSeconds();
// var day = now.getDate(), month = now.getMonth() + 1, year = now.getFullYear();
var textDate = FormatDigit(day, 2) + '-' + FormatDigit(month, 2) + '-' + year
+ ' ' + FormatDigit(hour, 2) + ':' + FormatDigit(min, 2) + ':' + FormatDigit(sec, 2);
$('#cur_time_display').html(textDate + ' GMT');
if($('#time_set_date').val() == '')
$('#time_set_date').val(textDate);
// Reload scene, if needed
var nowSec = Math.floor(now.getTime() / 1000);
if((CurrentTab == 'cp_orbits' && $('#time_current')[0].checked && nowSec - lastReloadTime > 20)
|| force_refresh==1)
{
lastReloadTime = nowSec;
this.reloadScene(false, nowSec);
}
}
this.onCustomTimeReload = function()
{
// Parse time from input
var customTime = $('#time_set_date').val();
var parsed = customTime.match(/^\s*(\d{1,2}).(\d{1,2}).(\d{4})[^\d]+(\d{1,2}).(\d{1,2}).(\d{1,2})/);
if(parsed != null)
{
if(!CheckDate(parsed[1], parsed[2], parsed[3]))
alert('Введена несуществующая дата');
else
{
var ts = Math.floor(Date.UTC(parsed[3], parsed[2]-1, parsed[1], parsed[4], parsed[5], parsed[6], 0) / 1000);
if(!CheckTimeWithNow(ts))
return;
this.reloadScene(false, ts);
lastReloadTime = 0;
}
}
else
{
alert('Указано неверное время. Введите значение в формате DD-MM-YYYY HH:MM:SS');
}
}
this.onRegionCalc = function()
{
// Parse and check input
var lat1 = $('#region_lat1').val();
var lat2 = $('#region_lat2').val();
var lon1 = $('#region_lon1').val();
var lon2 = $('#region_lon2').val();
if(!lat1.length || !lat2.length || !lon1.length || !lon2.length)
{
alert('Необходимо ввести координаты области поиска');
return;
}
var latMin = ParseCoord(lat1);
var latMax = ParseCoord(lat2);
var lonMin = ParseCoord(lon1);
var lonMax = ParseCoord(lon2);
// alert(latMin + ' ' + latMax + ' ' + lonMin + ' ' + lonMax);
if(isNaN(latMin) || isNaN(latMax) || isNaN(lonMin) || isNaN(lonMax))
{
alert('Неверный формат введенных координат');
return;
}
if(latMin < 40 || latMin > latMax || latMax > 90)
{
alert('Указаны недопустимые значения широты');
return;
}
if(lonMin < 18 || lonMin > lonMax || lonMax > 180)
{
alert('Указаны недопустимые значения долготы');
return;
}
var startTimeText = $('#region_time_since').val();
var startTimeParts = startTimeText.match(/^\s*(\d{1,2}).(\d{1,2}).(\d{4})/);
if(!startTimeParts)
{
alert('Указано некорректное значение даты');
return;
}
if(!CheckDate(startTimeParts[1], startTimeParts[2], startTimeParts[3]))
{
alert('Введена несуществующая дата');
return;
}
var startTime = Math.floor(Date.UTC(startTimeParts[3], startTimeParts[2]-1, startTimeParts[1], 0, 0, 0, 0) / 1000);
if(!CheckTimeWithNow(startTime))
return;
var satId = $('#region_sat').val();
if(!satId)
{
alert('Не выбран спутник');
return;
}
// Send post request
$.ajax({
data: {
op: 'search',
satId: satId,
latMin: latMin,
latMax: latMax,
lonMin: lonMin,
lonMax: lonMax,
startTime: startTime
}
});
}
// Success AJAX handler
this.onAjaxSuccess = function(req, resp)
{
var doc = resp[0];
var error = $('error', doc).text();
if(error)
{
$('#region_result div').html('' + error + '
');
alert(error);
}
else
{
$('#region_result p.error').remove();
var findRes = $('find', doc).text();
// alert(findRes);
if(findRes)
$('#region_result div').html('' + findRes.replace(/\n/, '
') + '
');
this.reloadScene(false);
}
}
// Error AJAX handler
this.onAjaxError = function()
{
alert('Извините, произошла вычислительная ошибка. Обратитесь в отдел технической поддержки.');
}
// Create method call
this.makeHandler = function(method)
{
var obj = this;
return function() {
return method.call(obj, this, arguments);
};
}
}
var satTr = new SatTr();
$(function() {
satTr.onLoad();
});
function FormatDigit(num, length)
{
var str = new String(num);
while(str.length < length)
str = '0' + str;
return str;
}
function CheckDate(day, month, year)
{
if(year < 1980 || year > 2030)
return false;
var date = new Date(Date.UTC(year, month-1, day, 12, 0, 0, 0));
return date.getUTCDate() == day && (date.getUTCMonth() + 1) == month;
}
function GetCurrentTab()
{
var currentTab = $('#control_panel > div:not(.tabs-hide)');
return currentTab[0] ? currentTab[0].id : null;
}
function CheckTimeWithNow(ts)
{
if(Math.abs(ts - (new Date()).getTime() / 1000) > 8640000)
{
alert('Допустимый интервал дат до 100 суток от текущей');
return false;
}
return true;
}
function GetDocument(iframe)
{
return iframe.contentWindow.document;
}
function ParseCoord(str)
{
var parts = str.match(/^([+-]?\d+)(?:[\.,](\d)\d*)?$/);
if(parts)
{
return parseInt(parts[1]) + (parts[2] ? parseInt(parts[2]) / 10 : 0);
}
else
return NaN;
}