Exploiter des données récupérées dans tableau

5 pièce(s) jointe(s)

Bonjour,

J'utilise un fichier HTML, qui exécute du JavaScript, et qui me génère ceci:

Pièce jointe 282295
Pièce jointe 282296
Pièce jointe 282297

J'aimerais optimiser l'affichage et exploiter les valeurs des 2 colonnes ( TWA et HDG ), à savoir créer 2 nouvelles colonnes nommées TWA Moy et HDG Moy qui listerait la valeur moyenne de la ligne par rapport à la première ( ce qui me permettrait de "lisser" les itérations )

En image ça donne ceci :

Pièce jointe 282301
Pièce jointe 282306

J'ai la contrainte d'avoir 2 amures ( Tribord en Vert et Bâbord en Rouge ) dans le code source de la page les valeurs TWA sont positives pour les valeurs en Vert et négatives pour les valeurs en Rouge donc une distinction pour arrêter le calcul de la moyenne est possible.
Concernant les valeurs HDG elle doivent également s'arrêter à un changement d'amure.

Je ne sais pas s'il est possible de créer l'espace entre Vitesse Bateau et TWA Moy ...
Et le saut de ligne dépends des fichiers météo qui ont pour heures fixes 02h / 05h / 08h / 11h / 14h / 17h / 20h / 23h

Voici le code source de la page exploitée:

Code:

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta name="viewport" content="width=device-width, user-scalable=no initial-scale=1.0, minimum-scale=1.0" />
<title>La Solitaire URGO</title>
<link href="div.css?42" rel="stylesheet" type="text/css">
<!--[if lt IE 7]>
<link href="div6.css?23" rel="stylesheet" type="text/css">
<![endif]-->
<!--[if lt IE 9]>
<style type="text/css">
.ie {
	display: none;
}
</style>
<![endif]-->
<script type="text/javascript">
var scale = 512;
var session_id = "9216efbb02e00a2a084335160dc18d36";
var days = 7;
var boat_lat = 45.60936;
var boat_lon = -1.194663;
var goal_lat = 48.0636;
var goal_lon = -5.12852;
var scroll_x = 1216; 
var scroll_y = -22192; 
var boat_heading = 275.888506437217;
var iso_id = 'e5/cdfe7f0b5102fa9ea5085283d6779168512'; 
var iso_minx = -8; 
var iso_miny = 58; 
var iso_maxx = -1; 
var iso_maxy = 65;
var wind_time = 0;
var grib_steps = 12;
var windbase = 1496577600;
var datastamp = '06+237';
var mobile = 0;
</script>
 
<SCRIPT type="text/javascript" src="util.js?30" defer></SCRIPT>
 
<SCRIPT type="text/javascript" src="iwind.js?32" defer></SCRIPT>
 
<SCRIPT type="text/javascript" src="cwind.js?31" defer></SCRIPT>
<SCRIPT type="text/javascript" src="scroll.js?27" defer></SCRIPT>
 
<script>
  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
 
  ga('create', 'UA-27385643-1', 'zezo.org');
  ga('send', 'pageview');
 
</script>
 
</head>
<body onload="init()">
<div style="position: relative; top:0px; width:100%;">
 
<div id="fs_menubar">
&nbsp;<a href="/index.html" style="color:black;"><u>H</u>ome</a>&nbsp;&nbsp;
<a href="/forum.pl" style="color:black;"><u>F</u>orum</a>&nbsp;&nbsp;
<a href="/fb.html" style="color:black;"><u>C</u>ontact</a>&nbsp;&nbsp;
<a href="/qa.html" style="color:black;"><u>Q</u>&amp;A</a>&nbsp;&nbsp;
<a href="/about.html" style="color:black;"><u>A</u>bout</a>&nbsp;
<a href="polars.html?pro=0" style="color:black;" target="vor_polars"><u>P</u>olars</a>&nbsp;|
&nbsp;
<!-- Announcement area --> 
<!--font size="-1"> <Would you like to support the project by 
<a style="text-decoration:underline;" href="about.html#donate">donating</a> 
a small amount for hardware upgrade? Read the 
<a style="text-decoration:underline;" href="about.html#tech">full story</a>. -->
<b>La Solitaire URGO</b>
<!-- a style="text-decoration:underline;" target="_blank" 
href="http://pacotool.fr/zezo.php5?lati_zezo=45.60936&longi_zezo=-1.194663&course=vendeeglobe">PACOTOOL</a-->
<span style="color:red">New! </span><a style="text-decoration:underline;" href="http://sail.zezo.org/forum.pl?tid=5969">6% speed adjustment and other changes</a>
<div style="float:right"><a href="about.html#donate"><img src="http://i.zezo.org/img/btn_donate_SM.gif"></a></div>
</div>
 
<div id="new_nav">
<button class="nnav" onmousedown="zoom_out();" title="Zoom Out"><b>&minus;</b></button><select class="nnav" title="Zoom level" onchange="select_zoom(this);">
 
	<option value="8" >1%</option>
 
	<option value="16" >2%</option>
 
	<option value="32" >5%</option>
 
	<option value="64" >10%</option>
 
	<option value="128" >25%</option>
 
	<option value="256" >50%</option>
 
	<option value="512" selected>100%</option>
 
</select><button class="nnav" onmousedown="zoom_in();" title="Zoom In" style="margin-right:20px;"><b>+</b></button>
<button class="nnav pad2 ie" onmousedown="toggle_tracks();" title="Toggle tracks"><img id="track_icon" style="vertical-align: text-top;" width="16px" height="16px" src="img/icon_track_gray.png"></button>
<button class="nnav pad2" onmousedown="wind_display(0);" title="None"><img style="vertical-align: text-top;" width="16px" height="16px" src="img/icon_n.png"></button><button class="nnav pad2" onmousedown="wind_display(1);" title="Black barbs"><img style="vertical-align: text-top;" width="16px" height="16px" src="img/icon_bb.png"></button><button class="nnav pad2 ie" onmousedown="wind_display(2);" title="Color barbs"><img style="vertical-align: text-top;" width="16px" height="16px" src="img/icon_cb.png"></button><button class="nnav pad2 ie" onmousedown="wind_display(3);" title="Arrows"><img style="vertical-align: text-top;" width="16px" height="16px" src="img/icon_a.png"></button>
<button title="Previous  wind" class="nnav" onmousedown="prev_wind();">&lt;</button><select id="hours" class="nnav" title="Wind time" onchange="show_wind(this.selectedIndex * 3);">
 
	<option selected>Now</option>
 
	<option >+3 h</option>
 
	<option >+6 h</option>
 
	<option >+9 h</option>
 
	<option >+12 h</option>
 
	<option >+15 h</option>
 
	<option >+18 h</option>
 
	<option >+21 h</option>
 
	<option >+24 h</option>
 
	<option >+27 h</option>
 
	<option >+30 h</option>
 
	<option >+33 h</option>
 
	<option >+36 h</option>
 
	<option >+39 h</option>
 
	<option >+42 h</option>
 
	<option >+45 h</option>
 
	<option >+48 h</option>
 
	<option >+51 h</option>
 
	<option >+54 h</option>
 
	<option >+57 h</option>
 
	<option >+60 h</option>
 
	<option >+63 h</option>
 
	<option >+66 h</option>
 
	<option >+69 h</option>
 
	<option >+72 h</option>
 
	<option >+75 h</option>
 
	<option >+78 h</option>
 
	<option >+81 h</option>
 
	<option >+84 h</option>
 
	<option >+87 h</option>
 
	<option >+90 h</option>
 
	<option >+93 h</option>
 
	<option >+96 h</option>
 
	<option >+99 h</option>
 
	<option >+102 h</option>
 
	<option >+105 h</option>
 
	<option >+108 h</option>
 
	<option >+111 h</option>
 
	<option >+114 h</option>
 
	<option >+117 h</option>
 
	<option >+120 h</option>
 
	<option >+123 h</option>
 
	<option >+126 h</option>
 
	<option >+129 h</option>
 
	<option >+132 h</option>
 
	<option >+135 h</option>
 
	<option >+138 h</option>
 
	<option >+141 h</option>
 
	<option >+144 h</option>
 
	<option >+147 h</option>
 
	<option >+150 h</option>
 
	<option >+153 h</option>
 
	<option >+156 h</option>
 
	<option >+159 h</option>
 
	<option >+162 h</option>
 
	<option >+165 h</option>
 
	<option >+168 h</option>
 
	<option >+171 h</option>
 
	<option >+174 h</option>
 
	<option >+177 h</option>
 
	<option >+180 h</option>
 
	<option >+183 h</option>
 
	<option >+186 h</option>
 
	<option >+189 h</option>
 
	<option >+192 h</option>
 
	<option >+195 h</option>
 
	<option >+198 h</option>
 
	<option >+201 h</option>
 
	<option >+204 h</option>
 
	<option >+207 h</option>
 
	<option >+210 h</option>
 
	<option >+213 h</option>
 
	<option >+216 h</option>
 
	<option >+219 h</option>
 
	<option >+222 h</option>
 
	<option >+225 h</option>
 
	<option >+228 h</option>
 
	<option >+231 h</option>
 
	<option >+234 h</option>
 
	<option >+237 h</option>
 
	<option >+240 h</option>
 
</select><button class="nnav" title="Next wind" style="margin-right: 30px;" onmousedown="next_wind();">&gt;</button>
<select onchange="set_days(this.selectedIndex + 1);" class="nnav" title="Track duration">
 
	<option >1d</option>
 
	<option >2d</option>
 
	<option >3d</option>
 
	<option >4d</option>
 
	<option >5d</option>
 
	<option >6d</option>
 
	<option  selected>7d</option>
 
	<option >8d</option>
 
	<option >9d</option>
 
	<option >10d</option>
 
</select>
 
<!--button class="nnav"><b>?</b></button-->
</div><!-- new nav--> 
<!-- div id="boat_name_d" style="clear: right;">
		<form method="GET" action="chart.pl">
		<input type="text" name="boat" size="20" title="Boat name" id="boat_name" placeholder="Enter Boat Name"  value="">
		<input type="hidden" name="sid" value="9216efbb02e00a2a084335160dc18d36">
		<button type="submit">Get</button>
		</form>
</div--!>
 
<div id="latlon" style="clear: right;">
	<form method="GET" action="chart.pl">
	<input type="tel" name="lon_deg" size="3" maxlength="3" style="width: 3ch;" value="1">&deg
	<input type="tel" name="lon_min" size="2" maxlength="2" style="width: 2ch;" value="11">'
	<input type="tel" name="lon_sec" size="2" maxlength="2" style="width: 2ch;" value="41">"
	<select name="lon_ew">
		<option >E</option>
		<option selected>W</option>
	<select>
	<input type="tel" name="lat_deg" size="3" maxlength="3" style="width: 3ch;" value="45">&deg
	<input type="tel" name="lat_min" size="2" maxlength="2" style="width: 2ch;" value="36">'
	<input type="tel" name="lat_sec" size="2" maxlength="2" style="width: 2ch;" value="34">"
	<select name="lat_ns">
		<option selected>N</option>
		<option >S</option>
	<select>
	<button type="submit">Go!</button>
	</form>
</div>
 
 
 
</div>
<div id="vp_container">
<div id="vp_canvas" onmousedown="grab(event)">
<div id="wind_info" >Wind:&nbsp;<span id="wind_data"></span></div>
<div id="tile_layer"></div>
<div id="iso_layer" style="z-index:0" ></div>
<div id="winds_layer"></div>
<div id="dot_layer" style="z-index:0">
 
<img src="img/dot.png" class="abs" style="z-index: 1; left :-614px; top:22726px;" 
	onmouseover="updi(event,'2017-06-04 16:00 CEST (T+ 0:00)<br>Distances:&nbsp;0.0nm/218.9nm<br><b>Wind:</b> 322&deg; 8.6 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.44 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(0);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-625px; top:22725px;" 
	onmouseover="updi(event,'2017-06-04 16:10 CEST (T+ 0:10)<br>Distances:&nbsp;0.9nm/218.1nm<br><b>Wind:</b> 322&deg; 8.9 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.75 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(0);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-637px; top:22725px;" 
	onmouseover="updi(event,'2017-06-04 16:20 CEST (T+ 0:20)<br>Distances:&nbsp;1.9nm/217.4nm<br><b>Wind:</b> 322&deg; 9.1 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 276&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.57 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(0);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-731px; top:22718px;" 
	onmouseover="updi(event,'2017-06-04 17:40 CEST (T+ 1:40)<br>Distances:&nbsp;9.6nm/211.3nm<br><b>Wind:</b> 322&deg; 10.6 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.16 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-743px; top:22717px;" 
	onmouseover="updi(event,'2017-06-04 17:50 CEST (T+ 1:50)<br>Distances:&nbsp;10.7nm/210.6nm<br><b>Wind:</b> 322&deg; 10.7 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.94 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-767px; top:22715px;" 
	onmouseover="updi(event,'2017-06-04 18:10 CEST (T+ 2:10)<br>Distances:&nbsp;12.7nm/209.0nm<br><b>Wind:</b> 322&deg; 11.0 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.22 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-780px; top:22715px;" 
	onmouseover="updi(event,'2017-06-04 18:20 CEST (T+ 2:20)<br>Distances:&nbsp;13.7nm/208.3nm<br><b>Wind:</b> 322&deg; 11.1 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.01 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-804px; top:22713px;" 
	onmouseover="updi(event,'2017-06-04 18:40 CEST (T+ 2:40)<br>Distances:&nbsp;15.7nm/206.7nm<br><b>Wind:</b> 322&deg; 11.4 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.28 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-817px; top:22713px;" 
	onmouseover="updi(event,'2017-06-04 18:50 CEST (T+ 2:50)<br>Distances:&nbsp;16.8nm/206.0nm<br><b>Wind:</b> 322&deg; 11.5 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.09 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-829px; top:22712px;" 
	onmouseover="updi(event,'2017-06-04 19:00 CEST (T+ 3:00)<br>Distances:&nbsp;17.8nm/205.2nm<br><b>Wind:</b> 322&deg; 11.7 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.33 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-842px; top:22711px;" 
	onmouseover="updi(event,'2017-06-04 19:10 CEST (T+ 3:10)<br>Distances:&nbsp;18.8nm/204.4nm<br><b>Wind:</b> 322&deg; 11.8 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.15 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-867px; top:22709px;" 
	onmouseover="updi(event,'2017-06-04 19:30 CEST (T+ 3:30)<br>Distances:&nbsp;20.9nm/202.8nm<br><b>Wind:</b> 322&deg; 12.1 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.40 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-880px; top:22709px;" 
	onmouseover="updi(event,'2017-06-04 19:40 CEST (T+ 3:40)<br>Distances:&nbsp;22.0nm/202.1nm<br><b>Wind:</b> 322&deg; 12.3 kt (<b>TWA 40&deg;</b>)<br><b>Heading:</b> 282&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.01 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-892px; top:22707px;" 
	onmouseover="updi(event,'2017-06-04 19:50 CEST (T+ 3:50)<br>Distances:&nbsp;23.0nm/201.3nm<br><b>Wind:</b> 322&deg; 12.5 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.24 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(3);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-905px; top:22706px;" 
	onmouseover="updi(event,'2017-06-04 20:00 CEST (T+ 4:00)<br>Distances:&nbsp;24.0nm/200.5nm<br><b>Wind:</b> 322&deg; 12.7 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.46 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-918px; top:22706px;" 
	onmouseover="updi(event,'2017-06-04 20:10 CEST (T+ 4:10)<br>Distances:&nbsp;25.1nm/199.7nm<br><b>Wind:</b> 322&deg; 12.6 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 278&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.26 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-943px; top:22703px;" 
	onmouseover="updi(event,'2017-06-04 20:30 CEST (T+ 4:30)<br>Distances:&nbsp;27.2nm/198.1nm<br><b>Wind:</b> 323&deg; 12.6 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 273&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.45 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-956px; top:22703px;" 
	onmouseover="updi(event,'2017-06-04 20:40 CEST (T+ 4:40)<br>Distances:&nbsp;28.3nm/197.4nm<br><b>Wind:</b> 323&deg; 12.5 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 278&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.25 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-969px; top:22702px;" 
	onmouseover="updi(event,'2017-06-04 20:50 CEST (T+ 4:50)<br>Distances:&nbsp;29.3nm/196.6nm<br><b>Wind:</b> 323&deg; 12.5 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 273&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.45 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-982px; top:22701px;" 
	onmouseover="updi(event,'2017-06-04 21:00 CEST (T+ 5:00)<br>Distances:&nbsp;30.4nm/195.8nm<br><b>Wind:</b> 323&deg; 12.5 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.25 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1007px; top:22699px;" 
	onmouseover="updi(event,'2017-06-04 21:20 CEST (T+ 5:20)<br>Distances:&nbsp;32.5nm/194.3nm<br><b>Wind:</b> 322&deg; 12.5 kt (<b>TWA 50&deg;</b>)<br><b>Heading:</b> 272&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.44 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1020px; top:22699px;" 
	onmouseover="updi(event,'2017-06-04 21:30 CEST (T+ 5:30)<br>Distances:&nbsp;33.5nm/193.6nm<br><b>Wind:</b> 322&deg; 12.5 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 276&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.25 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1058px; top:22696px;" 
	onmouseover="updi(event,'2017-06-04 22:00 CEST (T+ 6:00)<br>Distances:&nbsp;36.6nm/191.3nm<br><b>Wind:</b> 320&deg; 12.2 kt (<b>TWA 36&deg;</b>)<br><b>Heading:</b> 284&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.73 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1081px; top:22692px;" 
	onmouseover="updi(event,'2017-06-04 22:20 CEST (T+ 6:20)<br>Distances:&nbsp;38.5nm/189.7nm<br><b>Wind:</b> 318&deg; 12.0 kt (<b>TWA 40&deg;</b>)<br><b>Heading:</b> 277&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.96 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(6);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1128px; top:22688px;" 
	onmouseover="updi(event,'2017-06-04 23:00 CEST (T+ 7:00)<br>Distances:&nbsp;42.5nm/186.9nm<br><b>Wind:</b> 315&deg; 11.6 kt (<b>TWA 36&deg;</b>)<br><b>Heading:</b> 275&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.58 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1173px; top:22685px;" 
	onmouseover="updi(event,'2017-06-04 23:40 CEST (T+ 7:40)<br>Distances:&nbsp;46.2nm/184.4nm<br><b>Wind:</b> 309&deg; 10.9 kt (<b>TWA 45&deg;</b>)<br><b>Heading:</b> 262&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.96 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1197px; top:22688px;" 
	onmouseover="updi(event,'2017-06-05 00:00 CEST (T+ 8:00)<br>Distances:&nbsp;48.1nm/183.4nm<br><b>Wind:</b> 306&deg; 10.6 kt (<b>TWA -42&deg;</b>)<br><b>Heading:</b> 346&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.71 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1202px; top:22674px;" 
	onmouseover="updi(event,'2017-06-05 00:20 CEST (T+ 8:20)<br>Distances:&nbsp;48.7nm/181.8nm<br><b>Wind:</b> 302&deg; 10.3 kt (<b>TWA -45&deg;</b>)<br><b>Heading:</b> 345&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.86 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1208px; top:22658px;" 
	onmouseover="updi(event,'2017-06-05 00:40 CEST (T+ 8:40)<br>Distances:&nbsp;49.4nm/180.0nm<br><b>Wind:</b> 299&deg; 10.1 kt (<b>TWA -40&deg;</b>)<br><b>Heading:</b> 337&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.44 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1217px; top:22644px;" 
	onmouseover="updi(event,'2017-06-05 01:00 CEST (T+ 9:00)<br>Distances:&nbsp;50.4nm/178.3nm<br><b>Wind:</b> 296&deg; 9.8 kt (<b>TWA -45&deg;</b>)<br><b>Heading:</b> 337&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.76 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1235px; top:22614px;" 
	onmouseover="updi(event,'2017-06-05 01:40 CEST (T+ 9:40)<br>Distances:&nbsp;52.6nm/174.6nm<br><b>Wind:</b> 288&deg; 9.5 kt (<b>TWA -45&deg;</b>)<br><b>Heading:</b> 331&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.67 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(9);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1246px; top:22600px;" 
	onmouseover="updi(event,'2017-06-05 02:00 CEST (T+10:00)<br>Distances:&nbsp;53.9nm/172.8nm<br><b>Wind:</b> 285&deg; 9.4 kt (<b>TWA -50&deg;</b>)<br><b>Heading:</b> 332&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.89 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1257px; top:22585px;" 
	onmouseover="updi(event,'2017-06-05 02:20 CEST (T+10:20)<br>Distances:&nbsp;55.3nm/170.9nm<br><b>Wind:</b> 281&deg; 9.2 kt (<b>TWA -45&deg;</b>)<br><b>Heading:</b> 323&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 5.59 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1271px; top:22573px;" 
	onmouseover="updi(event,'2017-06-05 02:40 CEST (T+10:40)<br>Distances:&nbsp;56.8nm/169.0nm<br><b>Wind:</b> 277&deg; 9.1 kt (<b>TWA -55&deg;</b>)<br><b>Heading:</b> 327&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.07 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1298px; top:22544px;" 
	onmouseover="updi(event,'2017-06-05 03:20 CEST (T+11:20)<br>Distances:&nbsp;60.0nm/165.0nm<br><b>Wind:</b> 269&deg; 8.9 kt (<b>TWA -55&deg;</b>)<br><b>Heading:</b> 321&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.03 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1313px; top:22531px;" 
	onmouseover="updi(event,'2017-06-05 03:40 CEST (T+11:40)<br>Distances:&nbsp;61.7nm/163.0nm<br><b>Wind:</b> 265&deg; 8.9 kt (<b>TWA -60&deg;</b>)<br><b>Heading:</b> 322&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.27 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1329px; top:22517px;" 
	onmouseover="updi(event,'2017-06-05 04:00 CEST (T+12:00)<br>Distances:&nbsp;63.5nm/160.9nm<br><b>Wind:</b> 261&deg; 9.0 kt (<b>TWA -65&deg;</b>)<br><b>Heading:</b> 323&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.37 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1345px; top:22502px;" 
	onmouseover="updi(event,'2017-06-05 04:20 CEST (T+12:20)<br>Distances:&nbsp;65.3nm/158.8nm<br><b>Wind:</b> 257&deg; 9.0 kt (<b>TWA -60&deg;</b>)<br><b>Heading:</b> 315&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.30 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1363px; top:22490px;" 
	onmouseover="updi(event,'2017-06-05 04:40 CEST (T+12:40)<br>Distances:&nbsp;67.3nm/156.7nm<br><b>Wind:</b> 254&deg; 9.2 kt (<b>TWA -65&deg;</b>)<br><b>Heading:</b> 317&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.43 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(12);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1381px; top:22476px;" 
	onmouseover="updi(event,'2017-06-05 05:00 CEST (T+13:00)<br>Distances:&nbsp;69.3nm/154.6nm<br><b>Wind:</b> 251&deg; 9.3 kt (<b>TWA -70&deg;</b>)<br><b>Heading:</b> 317&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.58 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(15);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1419px; top:22449px;" 
	onmouseover="updi(event,'2017-06-05 05:40 CEST (T+13:40)<br>Distances:&nbsp;73.4nm/150.2nm<br><b>Wind:</b> 245&deg; 9.7 kt (<b>TWA -75&deg;</b>)<br><b>Heading:</b> 317&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.80 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(15);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1438px; top:22435px;" 
	onmouseover="updi(event,'2017-06-05 06:00 CEST (T+14:00)<br>Distances:&nbsp;75.5nm/147.9nm<br><b>Wind:</b> 242&deg; 10.0 kt (<b>TWA -70&deg;</b>)<br><b>Heading:</b> 309&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.76 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(15);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1459px; top:22422px;" 
	onmouseover="updi(event,'2017-06-05 06:20 CEST (T+14:20)<br>Distances:&nbsp;77.7nm/145.7nm<br><b>Wind:</b> 239&deg; 10.2 kt (<b>TWA -75&deg;</b>)<br><b>Heading:</b> 310&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.92 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(15);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1503px; top:22397px;" 
	onmouseover="updi(event,'2017-06-05 07:00 CEST (T+15:00)<br>Distances:&nbsp;82.3nm/141.1nm<br><b>Wind:</b> 234&deg; 10.8 kt (<b>TWA -80&deg;</b>)<br><b>Heading:</b> 310&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 7.14 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(15);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1549px; top:22371px;" 
	onmouseover="updi(event,'2017-06-05 07:40 CEST (T+15:40)<br>Distances:&nbsp;87.0nm/136.4nm<br><b>Wind:</b> 229&deg; 11.4 kt (<b>TWA -90&deg;</b>)<br><b>Heading:</b> 317&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 7.47 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(15);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1570px; top:22355px;" 
	onmouseover="updi(event,'2017-06-05 08:00 CEST (T+16:00)<br>Distances:&nbsp;89.3nm/133.9nm<br><b>Wind:</b> 227&deg; 11.8 kt (<b>TWA -90&deg;</b>)<br><b>Heading:</b> 315&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 7.56 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(18);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1592px; top:22340px;" 
	onmouseover="updi(event,'2017-06-05 08:20 CEST (T+16:20)<br>Distances:&nbsp;91.8nm/131.4nm<br><b>Wind:</b> 225&deg; 12.6 kt (<b>TWA -95&deg;</b>)<br><b>Heading:</b> 319&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 7.86 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(18);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1614px; top:22322px;" 
	onmouseover="updi(event,'2017-06-05 08:40 CEST (T+16:40)<br>Distances:&nbsp;94.3nm/128.7nm<br><b>Wind:</b> 224&deg; 13.3 kt (<b>TWA -90&deg;</b>)<br><b>Heading:</b> 312&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 7.95 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(18);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1664px; top:22291px;" 
	onmouseover="updi(event,'2017-06-05 09:20 CEST (T+17:20)<br>Distances:&nbsp;99.6nm/123.3nm<br><b>Wind:</b> 221&deg; 14.8 kt (<b>TWA -95&deg;</b>)<br><b>Heading:</b> 313&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 8.43 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(18);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1742px; top:22241px;" 
	onmouseover="updi(event,'2017-06-05 10:20 CEST (T+18:20)<br>Distances:&nbsp;108.1nm/114.8nm<br><b>Wind:</b> 216&deg; 17.1 kt (<b>TWA -100&deg;</b>)<br><b>Heading:</b> 315&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 8.95 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(18);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1795px; top:22205px;" 
	onmouseover="updi(event,'2017-06-05 11:00 CEST (T+19:00)<br>Distances:&nbsp;114.0nm/108.8nm<br><b>Wind:</b> 214&deg; 18.7 kt (<b>TWA -105&deg;</b>)<br><b>Heading:</b> 317&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 9.30 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(21);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1849px; top:22166px;" 
	onmouseover="updi(event,'2017-06-05 11:40 CEST (T+19:40)<br>Distances:&nbsp;120.1nm/102.5nm<br><b>Wind:</b> 210&deg; 20.6 kt (<b>TWA -110&deg;</b>)<br><b>Heading:</b> 318&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 9.80 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(21);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-1935px; top:22101px;" 
	onmouseover="updi(event,'2017-06-05 12:40 CEST (T+20:40)<br>Distances:&nbsp;130.0nm/92.3nm<br><b>Wind:</b> 206&deg; 23.9 kt (<b>TWA -115&deg;</b>)<br><b>Heading:</b> 320&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 10.78 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(21);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-2055px; top:22005px;" 
	onmouseover="updi(event,'2017-06-05 14:00 CEST (T+22:00)<br>Distances:&nbsp;144.3nm/77.6nm<br><b>Wind:</b> 202&deg; 28.4 kt (<b>TWA -115&deg;</b>)<br><b>Heading:</b> 319&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 11.16 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(24);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-2206px; top:21885px;" 
	onmouseover="updi(event,'2017-06-05 15:40 CEST (T+23:40)<br>Distances:&nbsp;162.4nm/59.0nm<br><b>Wind:</b> 208&deg; 28.1 kt (<b>TWA -115&deg;</b>)<br><b>Heading:</b> 324&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 11.15 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(24);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-2234px; top:21859px;" 
	onmouseover="updi(event,'2017-06-05 16:00 CEST (T+24:00)<br>Distances:&nbsp;165.9nm/55.3nm<br><b>Wind:</b> 210&deg; 27.8 kt (<b>TWA -110&deg;</b>)<br><b>Heading:</b> 323&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 10.90 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(24);">
<img src="img/dot.png" class="abs" style="z-index: 1; left :-2483px; top:21620px;" 
	onmouseover="updi(event,'2017-06-05 20:00 CEST (T+28:00)<br>Distances:&nbsp;198.8nm/21.0nm<br><b>Wind:</b> 287&deg; 26.7 kt (<b>TWA -39&deg;</b>)<br><b>Heading:</b> 329&deg;<b>Sail:</b> Jib<br><b>Boat Speed:</b> 6.28 kts','220px')" onmouseout="cleari()" 
	onmousedown="show_wind(30);">
<img src="img/flag.png" class="abs" style="left :-2626px; top:21444px;">
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			onmouseout="out(event,this)" onmousedown="show_polars()">Polar graph</div>
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			onmouseout="out(event,this)" onmousedown="set_pos(0,1)">Set as starting point</div>
	<div class="menuitem" style="width:150px" onmouseover="over(event,this)"
			onmouseout="out(event,this)" onmousedown="set_pos(1,1)">Set as destination</div>
    <div class="divider"></div> 
 
	<div class="menuitem" style="width:150px; background:#E3F3FF;" onmouseover="over(event,this)"
                   onmouseout="out(event,this)" onmousedown="set_pos(1,0,-5.12852,48.0636)">
					Go to Chausée de sein</div>
 
	<div class="menuitem" style="width:150px;" onmouseover="over(event,this)"
                   onmouseout="out(event,this)" onmousedown="set_pos(1,0,-5.6643,43.5592)">
					Go to Gijon</div>
 
	<div class="divider"></div> 
	<div class="menuitem" style="width:150px" onmouseover="over(event,this)" onmouseout="out(event,this)" 
			onmousedown="toggle_pro()">
			<input type="checkbox" id="tpb" style="border:none; margin-left: 0;" onmousedown="cancel_event"
			> Pro sails
	</div>
	<div class="menuitem" style="width:150px" onmouseover="over(event,this)" onmouseout="out(event,this)" 
			onmousedown="toggle_gates()">
			<input type="checkbox" id="tgb" style="border:none; margin-left: 0;" onmousedown="cancel_event"
			> Ignore gates
	</div>
	<div class="menuitem" style="display:block; width:150px;" onmouseover="over(event,this)" onmouseout="out(event,this)" 
			onmousedown="toggle_tacks()">
			<input type="checkbox" id="ttb" style="border:none; margin-left: 0;" onmousedown="cancel_event"
			> 6% extra speed 
	</div>
	<div class="menuitem" style="display:block; width:150px;" onmouseover="over(event,this)" onmouseout="out(event,this)" 
			onmousedown="toggle_time()">
 
			<input type="checkbox" id="tsb" style="border:none; margin-left: 0;" onmousedown="cancel_event"
			> Timeshift
	</div>
	<div class="divider"></div> 
		<div class="menuitem" style="width:150px" onmouseover="over(event,this)"
                        onmouseout="out(event,this)" onmousedown="find_boat()">Center chart</div>
</div>
 
<div style="display:block; position: fixed; z-index:15; right:0px; bottom: 20px; padding: 1px;">
<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<!-- Chart bottom -->
<ins class="adsbygoogle"
     style="display:inline-block;width:728px;height:90px"
     data-ad-client="ca-pub-4306548645573687"
     data-ad-slot="4516500658"></ins>
<script>
(adsbygoogle = window.adsbygoogle || []).push({});
</script>
</div>
 
</div>
<div id="statusbar">
<div class="statusitem" style="width: 10em">DST:<span id="span_dd1"></span></div>
<div class="statusitem" style="width: 10em"><span id="span_lat"></span>&nbsp;<span id="span_lon"></span></div>
<div class="statusitem">Sun Jun  4 16:00 CET</div>
 
<div class="statusitem" id="debug_div"></div>
<div class="statusitem" style="float:right; margin-right: 1px; width:10em">DTF:<span id="span_dd2"></span></div>
<div class="statusitem" style="float:right;" title="Last file:gfs.t06z+237h">GFS:06Z</div>
 
 
</div>
 
 
 
<div id="amenu" class="contextmenu" style="display:none;">
	<div class="menuitem" style="width:150px">Router algorithm:</div>
    <div class="divider"></div> 
 
</div>
 
</body>
</html>

Et voici le code de mon fichier HTML :

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<html>
    <head>
        <meta charset="UTF-8">
        <script>
 
// returns info from the html file content
function info_from_file_content(_content)
{
    var res = [];
    res['course'] = /<title>(.*)<\/title>/g.exec(_content)[1];
    res['lat'] = parseFloat(/var boat_lat = (.*);/g.exec(_content)[1]);
    res['lon'] = parseFloat(/var boat_lon = (.*);/g.exec(_content)[1]);
    return res;
}
 
// Convert lon / lat decimal to degree minute second
function dms_lon(lon) {
  var EW = (lon>=0)?'E':'W'
  var d_lon = Math.trunc(lon);
  var x_lon = (lon - d_lon) * 60;
  var m_lon = Math.trunc(x_lon);
  var y_lon = (x_lon - m_lon) * 60;
  s_lon = Math.trunc(y_lon);
 
  d_lon = Math.abs(d_lon);
  m_lon = Math.abs(m_lon);
  s_lon = Math.abs(s_lon);
 
  var bd_lon = (d_lon>=100)?d_lon:'0'+d_lon;
  var ad_lon = (d_lon>=10)?bd_lon:'00'+d_lon;
  var am_lon = (m_lon>=10)?m_lon:'0'+m_lon;
  var as_lon = (s_lon>=10)?s_lon:'0'+s_lon;
  return ad_lon + '°' + EW + ' ' + am_lon + "'" + as_lon +'"'; 
}
 
function dms_lat(lat) {
  var NS = (lat>=0)?'N':'S'
  var d_lat = Math.trunc(lat);
  var x_lat = (lat - d_lat) * 60;
  var m_lat = Math.trunc(x_lat);
  var y_lat = (x_lat - m_lat) * 60;
  s_lat = Math.trunc(y_lat);
 
  d_lat = Math.abs(d_lat);
  m_lat = Math.abs(m_lat);
  s_lat = Math.abs(s_lat);
 
  var bd_lat = (d_lat>=100)?d_lat:'0'+d_lat;
  var ad_lat = (d_lat>=10)?bd_lat:'00'+d_lat;
  var am_lat = (m_lat>=10)?m_lat:'0'+m_lat;
  var as_lat = (s_lat>=10)?s_lat:'0'+s_lat;
  return ad_lat + '°' + NS + ' ' + am_lat + "'" + as_lat +'"'; 
}
 
// Display info in the table
function display_info(_values)
{
    document.getElementById('output_info').innerHTML = '<tr><td align="center">Course VR</td><td align="center">Position GPS</td></tr><tr><td align="center">'+_values['course']+'</td><td align="center">'+dms_lon(_values['lon'])+' - '+dms_lat(_values['lat'])+'</td></tr>';
}
 
// returns data from the html file content
function data_from_file_content(_content)
{
    var expr = /updi\(event\,\'(.*)<br>Distances:&nbsp;(.*)<br><b>Wind:<\/b>(.*)\(<b>TWA(.*);<\/b>\)<br><b>Heading:<\/b>(.*)<b>Sail:<\/b>(.*)<br><b>Boat Speed:<\/b>(.*)','(.*)'\)/gi;
    var value;
    var values = [];
    while(value = expr.exec(_content))
    {
        var res = [];
        res['date']=value[1];
        res['distance']=value[2];
        res['wind']=value[3];
        res['twa']=value[4];
        res['heading']=value[5];
        res['sail']=value[6];
        res['speed']=value[7];
        values.push(res);
    }
    return values;
}
 
// Display data in the table
function display_data(_values)
{
    var table_content = '<tr><td align="center">Date et Heure</td><td align="center">Distance</td><td align="center">Vent</td><td align="center">TWA</td><td align="center">HDG</td><td align="center">Voile</td><td align="center">Vitesse bateau</td></tr>';
    for(var l=0; l<_values.length; l++)
    {
        var twa = parseFloat(_values[l]['twa']);
        var twa_color = (twa>=0)?'green':'red';
        table_content += '<tr><td align="center">'+_values[l]['date']+'</td><td align="center">'+_values[l]['distance']+'</td><td align="center">'+_values[l]['wind']+'</td><td align="center" style=\'color:'+twa_color+';\'>'+Math.abs(twa)+'°</td><td align="center" style="color:blue" >'+_values[l]['heading']+'</td><td align="center">'+_values[l]['sail']+'</td><td align="center">'+_values[l]['speed']+'</td></tr>';
    }
    document.getElementById('output').innerHTML = table_content;
}
 
// This function is called when the button is pushed
function button_clicked()
{
    var file_content = document.getElementById('file').value;
 
    var info = info_from_file_content( file_content );
    display_info( info );
 
    var data = data_from_file_content( file_content );
    display_data( data );
}
 
        </script>
    </head>
<body background="bgimg.jpg">
<h1 align="center" style="color:white"> Route zezo.org </h1>
<textarea id="file" rows="3"></textarea><br />
<br />
<button onclick="button_clicked();">Extraire Route ZEZO</button><br />
<br />
<table border="3" align="center" bgcolor="white" id="output_info"><tr><td align="center">Course VR</td><td align="center">Position GPS</td></tr></table><br />
<br />
<table border="3" align="center" bgcolor="white" id="output"><tr><td align="center">Date et Heure</td><td align="center">Distance</td><td align="center">Vent</td><td align="center">TWA</td><td align="center">HDG</td><td align="center">Voile</td><td align="center">Vitesse bateau</td></tr></table>
</body>
</html>

Quelqu'un aurait l'amabilité de m'aiguiller parce que j'y arrive pas ... :?

ce qui est un bon début dans votre code est que l'analyse des données (dans la fonction "data_from_file_content") est bien séparée de l'affichage (dans la fonction "display_data")

donc pour les modifications, le calcul des valeurs des nouvelles colonnes de fera a moment de l'analyse des données
et l'espace entre les colonnes et l'affichage des nouvelles valeurs se fera en modifiant la fonction d'affichage

quand vous parlez de "moyenne de la ligne par rapport à la première" les nombres de l'exemple sont plutôt la moyenne de toutes les valeurs depuis le début du tableau ?

Yep, enfaite les valeurs TWA Moy et HDG Moy à chaque ligne sont les valeurs que je dois respecter pour atteindre ce waypoint en partant de la valeur de la premiere ligne, qui est mon point de départ, et pour la même allure ( Tribord valeurs vertes ou Bâbord valeurs rouges )

Bonjour,
J'ai capté pour ajouter mes colonnes TWA Moy et HDG Moy donc ça c'est cool

Concernant le calcul des moyennes je suppose que je dois passer par une fonction dont 'le cahier des charges' serait le suivant :
- Il faut checker l'état de la première valeur TWA ( TWA >= 0 ou TWA < 0 ) pour définir le bord (tribord ou bâbord donc valeurs en vert ou en rouge )
- Apres il doit y avoir une notion de boucle je suppose, tant que la valeur suivante est dans le même état que la valeur de référence ( donc positive ou négative ) le calcul de moyenne continue et incrémente le tableau, si la valeur suivante change d'état le calcul de la moyenne s'arrête et cette valeur devient la nouvelle valeur de référence pour le calcul des moyennes ...
- il me faut créer également le calcul de la moyenne ...
- il me faut une corrélation entre la moyenne HDG et le bord TWA

Les histoires d'affichages m'importe peu dans un premier temps en revanche je suis preneur de toutes aides extérieures pour implémenter mon tableau avec les moyennes ... :calim2:

le calcul de la moyenne peut se faire dans la même boucle que l'analyse de la ligne avec des variables qui comptent le nombre de ligne et la somme des valeurs

donc la fonction d'analyse donnera quelque chose comme ça :

Code:

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function data_from_file_content(_content)
{
    var expr = /updi\(event\,\'(.*)<br>Distances:&nbsp;(.*)<br><b>Wind:<\/b>(.*)\(<b>TWA(.*);<\/b>\)<br><b>Heading:<\/b>(.*)<b>Sail:<\/b>(.*)<br><b>Boat Speed:<\/b>(.*)','(.*)'\)/gi;
    var value;
    var values = [];
 
    var nombreValeurs, sommeTWA, sommeHDG;
    var cotePrecedent = "";
 
    while(value = expr.exec(_content))
    {
        var res = [];
        res['date']=value[1];
        res['distance']=value[2];
        res['wind']=value[3];
        res['twa']= parseFloat(value[4]);
        res['heading']=value[5];
        res['sail']=value[6];
        res['speed']=value[7];
 
 
        // recherche du changement de côté
 
        res["cote"] = (res['twa'] >= 0) ? "tribord" : "babord";
 
        if (cotePrecedent !== res["cote"]) {
            nombreValeurs = 0;
            sommeTWA = 0;
            sommeHDG = 0;
 
            cotePrecedent = res["cote"];
        }
 
 
        // calcul de la moyenne TWA
 
        nombreValeurs++;
        sommeTWA += res['twa'];
 
        res["moyenneTWA"] = sommeTWA / nombreValeurs;
 
 
        // calcul de la moyenne HDG
        // ... pareil que TWA :-)
 
 
        // stockage
        values.push(res);
    }
 
 
    return values;
}

Merci je vais tester ça de suite

Ça fonctionne pas docteur :(

j'ai un 'NaN' en guise de valeur :weird:

Citation:

Envoyé par rlelamer

j'ai un 'NaN' en guise de valeur :weird:

dans quelle variable ?

Pour les valeurs 'moyenneTWA' l'autre je verrais après j'y vais par étapes ;)

avez-vous récupéré la fonction en entier ?
j'ai ajouté un "parseFloat" dès le début pour les valeurs de TWA

Cool ça fonctionne ;)
Faut que je fasse la coloration vert ou rouge pour indiquer si tribord ou bâbord et que j'arrondisse à un entier mais c'est ce que je souhaite obtenir.
Merci beaucoup :D

PS : Je ne passe pas le sujet en résolu car tout n'est pas fini, merci de ne pas m'avertir ;)

3 pièce(s) jointe(s)

Bonjour Mathieu,
Je reviens sur les valeurs moyennes calculées à partir des données extraites.
J'ai mal réfléchi mon truc ... j'ai oublié de prendre en compte les itérations manquantes ( les itérations se font toutes les 10 min ) ce qui changent la donne et peut faire varier, sur cet exemple, l'angle au vent (TWA) et le cap à suivre pour atteindre le prochain waypoint (BTW) de 3° au maximum sur un bord ( c'est beaucoup 3° et ça fausse du coup ma route à suivre ...)

Avec des screens j'espère que ça sera plus parlant :

Voici un fichier avec les moyennes calculées à chaque ligne:
Pièce jointe 290774

En réalité il manque des itérations comme dans les lignes sur fond vert pâle:
Pièce jointe 290778

Quand je les prends en compte pour le même bord ( ici bâbord ), ça donne ceci :
Pièce jointe 290783

Les valeurs TWAm_RL et BTWm_RL prennent en compte toutes les itérations manquantes et les rectangles jaunes indiquent si la nouvelle valeur est différente de l'ancienne méthode de calcul

Comment je peux implémenter une sorte de boucle qui prendrait en compte les itérations manquantes ?
Merci

1 pièce(s) jointe(s)

Bonsoir mathieu,
Après avoir implémenter le code que tu m'as gentiment fourni, plus mes améliorations visuelles, je m'aperçois qu'au final ça colle pas :(

Voici le rendu de ton code :
Pièce jointe 291426

On y voit que des la seconde ligne ça part en vrac soit j'ai merdé quelque part en l'implémentant soit y'a une coquille.

je te post le code entier, j'ai beau lire et relire j'trouve pas ou j'ai merdé

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<html>
    <head>
        <meta charset="UTF-8">
        <script>
 
// returns info from the html file content
function info_from_file_content(_content)
{
    var res = [];
    res['race'] = /<title>(.*)<\/title>/g.exec(_content)[1]; 
    res['lat_b'] = parseFloat(/var boat_lat = (.*);/g.exec(_content)[1]);
    res['lon_b'] = parseFloat(/var boat_lon = (.*);/g.exec(_content)[1]);
    res['lat_f'] = parseFloat(/var goal_lat = (.*);/g.exec(_content)[1]);
    res['lon_f'] = parseFloat(/var goal_lon = (.*);/g.exec(_content)[1]);
    res['dtg'] = calc(res, 'dtg');
    res['btg'] = calc(res, 'btg');
    return res;
}
 
function calc(_res, choix) {
	// Fonction conversion de Degrées <=> Radians
	function deg2rad (angle) { return angle * (Math.PI / 180); }
	function rad2deg (angle) { return angle * (180 / Math.PI); }
 
	var ray = 3443.9; // Rayon équatorial de la Terre en nm
 
	// Conversion des coordonnées de Degrées en Radians
	lat1 = deg2rad(_res['lat_b']);
	lon1 = deg2rad(_res['lon_b']);
	lat2 = deg2rad(_res['lat_f']);
	lon2 = deg2rad(_res['lon_f']);
 
	// Formules :
		// dtg = acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos(lon1-lon2))
		// btg = atan(1/(((tan(lat2)*cos(lat1)-sin(lat1)*cos(lon1-lon2))/sin(lon1-lon2))))
 
	switch (choix) {
		case 'dtg':
			return Math.round( ray * Math.acos( Math.sin(lat1) * Math.sin(lat2) + Math.cos(lat1) * Math.cos(lat2) * Math.cos(lon1-lon2) ) );
 
		case 'btg':
			return ( (Math.round( rad2deg( Math.atan( 1 /( ( ( Math.tan(lat2) * Math.cos(lat1) - Math.sin(lat1) * Math.cos(lon2 - lon1)) / Math.sin(lon2 - lon1) ) ) ) ) ) + 180) % 360 );
 
		default:
			return '';
	}
}
 
// Convert lon / lat decimal to degree minute second
function dms_lon(lon_b) {
  var EW = (lon_b>=0)?'E':'W'
  var d_lon_b = Math.trunc(lon_b);
  var x_lon_b = (lon_b - d_lon_b) * 60;
  var m_lon_b = Math.trunc(x_lon_b);
  var y_lon_b = (x_lon_b - m_lon_b) * 60;
  s_lon_b = Math.trunc(y_lon_b);
 
  d_lon_b = Math.abs(d_lon_b);
  m_lon_b = Math.abs(m_lon_b);
  s_lon_b = Math.abs(s_lon_b);
 
  var bd_lon_b = (d_lon_b>=100)?d_lon_b:'0'+d_lon_b;
  var ad_lon_b = (d_lon_b>=10)?bd_lon_b:'00'+d_lon_b;
  var am_lon_b = (m_lon_b>=10)?m_lon_b:'0'+m_lon_b;
  var as_lon_b = (s_lon_b>=10)?s_lon_b:'0'+s_lon_b;
  return ad_lon_b + '°' + EW + ' ' + am_lon_b + "'" + as_lon_b +'"'; 
}
 
function dms_lat(lat_b) {
  var NS = (lat_b>=0)?'N':'S'
  var d_lat_b = Math.trunc(lat_b);
  var x_lat_b = (lat_b - d_lat_b) * 60;
  var m_lat_b = Math.trunc(x_lat_b);
  var y_lat_b = (x_lat_b - m_lat_b) * 60;
  s_lat_b = Math.trunc(y_lat_b);
 
  d_lat_b = Math.abs(d_lat_b);
  m_lat_b = Math.abs(m_lat_b);
  s_lat_b = Math.abs(s_lat_b);
 
  var bd_lat_b = (d_lat_b>=100)?d_lat_b:'0'+d_lat_b;
  var ad_lat_b = (d_lat_b>=10)?bd_lat_b:'00'+d_lat_b;
  var am_lat_b = (m_lat_b>=10)?m_lat_b:'0'+m_lat_b;
  var as_lat_b = (s_lat_b>=10)?s_lat_b:'0'+s_lat_b;
  return ad_lat_b + '°' + NS + ' ' + am_lat_b + "'" + as_lat_b +'"'; 
}
 
function dms_lon(lon_f) {
  var EW = (lon_f>=0)?'E':'W'
  var d_lon_f = Math.trunc(lon_f);
  var x_lon_f = (lon_f - d_lon_f) * 60;
  var m_lon_f = Math.trunc(x_lon_f);
  var y_lon_f = (x_lon_f - m_lon_f) * 60;
  s_lon_f = Math.trunc(y_lon_f);
 
  d_lon_f = Math.abs(d_lon_f);
  m_lon_f = Math.abs(m_lon_f);
  s_lon_f = Math.abs(s_lon_f);
 
  var bd_lon_f = (d_lon_f>=100)?d_lon_f:'0'+d_lon_f;
  var ad_lon_f = (d_lon_f>=10)?bd_lon_f:'00'+d_lon_f;
  var am_lon_f = (m_lon_f>=10)?m_lon_f:'0'+m_lon_f;
  var as_lon_f = (s_lon_f>=10)?s_lon_f:'0'+s_lon_f;
  return ad_lon_f + '°' + EW + ' ' + am_lon_f + "'" + as_lon_f +'"'; 
}
 
function dms_lat(lat_f) {
  var NS = (lat_f>=0)?'N':'S'
  var d_lat_f = Math.trunc(lat_f);
  var x_lat_f = (lat_f - d_lat_f) * 60;
  var m_lat_f = Math.trunc(x_lat_f);
  var y_lat_f = (x_lat_f - m_lat_f) * 60;
  s_lat_f = Math.trunc(y_lat_f);
 
  d_lat_f = Math.abs(d_lat_f);
  m_lat_f = Math.abs(m_lat_f);
  s_lat_f = Math.abs(s_lat_f);
 
  var bd_lat_f = (d_lat_f>=100)?d_lat_f:'0'+d_lat_f;
  var ad_lat_f = (d_lat_f>=10)?bd_lat_f:'00'+d_lat_f;
  var am_lat_f = (m_lat_f>=10)?m_lat_f:'0'+m_lat_f;
  var as_lat_f = (s_lat_f>=10)?s_lat_f:'0'+s_lat_f;
  return ad_lat_f + '°' + NS + ' ' + am_lat_f + "'" + as_lat_f +'"'; 
}
 
// Display info in the table
function display_info(_values)
{
    document.getElementById('output_info').innerHTML = '<tr><td align="center">Race VR</td><td align="center">Boat Position</td><td align="center">Buoy / Finish Position</td><td align="center">DTG</td><td align="center">BTG</td></tr><tr><td align="center">'+_values['race']+'</td><td align="center">'+dms_lon(_values['lon_b'])+' - '+dms_lat(_values['lat_b'])+'</td><td align="center">'+dms_lon(_values['lon_f'])+' - '+dms_lat(_values['lat_f'])+'</td><td align="center">'+_values['dtg']+' nm</td><td align="center">'+_values['btg']+'°</td></tr>';
}
 
// returns data from the html file content
function data_from_file_content(_content)
{
    var expr = /updi\(event\,\'(.*)\-(.*)\-(.*)[ ](.*)[ ](.*)[ ]\((.*)\)<br>Distances:&nbsp;(.*)\/(.*)<br><b>Wind:<\/b>(.*)\;(.*)\(<b>TWA(.*);<\/b>\)<br><b>Heading:<\/b>(.*)<b>Sail:<\/b>(.*)<br><b>Boat Speed:<\/b>(.*)','(.*)'\)/gi;
    var value;
    var values = [];
    var nbrValues, sTWA, sBTW;
    var bordPrecedent = "";
    while(value = expr.exec(_content))
    {
        var res = [];
        res['date']=value[1]+'-'+value[2]+'-'+value[3];
        res['time']=value[4];
        res['ttw']=value[6];
        res['dtw']=value[7];
        res['twd']=value[9];
        res['tws']=value[10];
        res['twa']=parseFloat(value[11]);
        res['btw']=parseFloat(value[12]);
        res['sail']=value[13];
        res['stw']=value[14];
 
        // search bord changing
        res["bord"] = (res['twa'] >= 0) ? "tribord" : "babord";
        if (bordPrecedent !== res["bord"]) {
            nbrValues = 0;
            sTWA = 0;
            sBTW = 0;
 
            bordPrecedent = res["bord"];
        }
 
        // calc TWAm
        nbrValues++;
        sTWA += res['twa'];
        res["twam"] = Math.round(sTWA / nbrValues);
 
        // calc BTWm
        nbrValues++;
        sBTW += res['btw'];
        res["btwm"] = Math.round(sBTW / nbrValues);
        values.push(res);
    }
    return values;
}
 
// Display data in the table
function display_data(_values)
{
    var table_content = '<tr><td align="center">Date</td><td align="center">Time</td><td align="center">TTW</td><td align="center">DTW</td><td align="center">TWD</td><td align="center">TWS</td><td align="center">TWA</td><td align="center">BTW</td><td align="center">Sail</td><td align="center">STW</td><td align="center">TWAm</td><td align="center">BTWm</td></tr>';
    for(var l=0; l<_values.length; l++)
    {
        var twa = parseFloat(_values[l]['twa']);
        var twa_color = (twa>=0)?'green':'red';
        var twam = parseFloat(_values[l]['twam']);
        var twam_color = (twam>=0)?'green':'red';
        table_content += '<tr><td align="center">'+_values[l]['date']+'</td><td align="center">'+_values[l]['time']+'</td><td align="center">'+_values[l]['ttw']+'</td><td align="center">'+_values[l]['dtw']+'</td><td align="center">'+_values[l]['twd']+'</td><td align="center">'+_values[l]['tws']+'</td><td align="center" style=\'color:'+twa_color+';\'>'+Math.abs(twa)+'°</td><td align="center" style="color:blue" >'+_values[l]['btw']+'°</td><td align="center">'+_values[l]['sail']+'</td><td align="center">'+_values[l]['stw']+'</td><td align="center" style=\'color:'+twam_color+';\'>'+Math.abs(twam)+'°</td><td align="center" style="color:blue" >'+_values[l]['btwm']+'°</td></tr>';
    }
    document.getElementById('output').innerHTML = table_content;
}
 
// This function is called when the button is pushed
function button_clicked()
{
    var file_content = document.getElementById('file').value;
 
    var info = info_from_file_content( file_content );
    display_info( info );
 
    var data = data_from_file_content( file_content );
    display_data( data );
}
 
        </script>
<body background="bgimg.jpg">
<h1 align="center" style="color:white"> Route zezo.org </h1>
<textarea id="file" rows="3"></textarea><br />
<br />
<button onclick="button_clicked();">Extract Route ZEZO</button><br />
<br />
<table border="3" align="center" bgcolor="white" id="output_info"><tr><td align="center">Race VR</td><td align="center">Boat Position</td><td align="center">Buoy / Finish Position</td><td align="center">DTG</td><td align="center">BTG</td></tr></table><br />
<br />
<table border="3" align="center" bgcolor="white" id="output"><tr><td align="center">Date</td><td align="center">Time</td><td align="center">TTW</td><td align="center">DTW</td><td align="center">TWD</td><td align="center">TWS</td><td align="center">TWA</td><td align="center">BTW</td><td align="center">Sail</td><td align="center">STW</td><td align="center">TWAm</td><td align="center">BTWm</td></tr></table>
</body>

J'suis preneur d'un coup de pouce :calim2: