<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:'Times New Roman', Times, serif;" dir="ltr">
<div style="color: rgb(0, 0, 0);">
<div>
<div id="divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:'Times New Roman',Times,serif">
<p><br>
</p>
<p>Dear list, </p>
<p><br>
</p>
<p>I want to ask about the appropriate method to calculate <span style="font-family:"Times New Roman",Times,serif,"Apple Color Emoji","Segoe UI Emoji",NotoColorEmoji,"Segoe UI Symbol","Android Emoji",EmojiSymbols; font-size:16px">
a cranial surface delimited by a number of electrodes.</span></p>
<p><span style="font-size:12pt"><br>
</span></p>
<p><span style="font-size:12pt">I have the coordinates of my 128 electrodes.</span></p>
<p><span style="font-size:12pt">I'm not sure if the polyarea function gives me the best result.</span></p>
<p><span style="font-size:12pt"><br>
</span></p>
<p><span style="font-size:12pt"><br>
</span></p>
<p><span style="font-size:12pt">Thanks a lot for your help!</span></p>
<p><span style="font-size:12pt">Best</span></p>
<p><span style="font-size:12pt"><br>
</span></p>
<p><span style="font-size:12pt">Ibti</span></p>
<p><span style="font-size:12pt"><br>
</span></p>
<p><span style="font-size:12pt"><br>
</span></p>
<div id="Signature">
<div><font style="background-color:rgb(255,255,255)" color="#666666" size="2" face="Comic Sans MS">----------------------------------------------------------</font></div>
<div><font style="background-color:rgb(255,255,255)" color="#666666" size="2" face="Comic Sans MS">----------------------------------------------------------</font></div>
<font style="background-color:rgb(255,255,255)" color="#666666" size="2" face="Comic Sans MS">Ibtissem KHOUAJA BENFRADJ</font>
<div><span style="background-color:rgb(255,255,255)"><font color="#666666" size="2" face="Comic Sans MS">PhD in computer science</font></span></div>
<div><span style="background-color:rgb(255,255,255)"><font color="#666666" size="2" face="Comic Sans MS">Speciality: Biomedical Signal Processing</font></span></div>
<div><span style="background-color:rgb(255,255,255)"><font color="#666666" size="2" face="Comic Sans MS">Laboratory: LTIM, University of Monastir, Tunisia</font></span></div>
<div><a href="http://www.labtim.org/accueil.php" target="_blank" id="LPNoLP"><font style="background-color:rgb(255,255,255)" color="#666666" size="2" face="Comic Sans MS">http://www.labtim.org/accueil.php</font></a></div>
<div><span style="background-color:rgb(255,255,255)"><font color="#666666" size="2" face="Comic Sans MS">Laboratory: LIGM, Univerisity of Paris-East, France </font></span></div>
<div><a href="http://ligm.u-pem.fr/" target="_blank" id="LPNoLP"><font style="background-color:rgb(255,255,255)" color="#666666" size="2" face="Comic Sans MS">http://ligm.u-pem.fr/</font></a></div>
<div><span style="background-color:rgb(255,255,255)"><font color="#666666" size="2" face="Comic Sans MS"><br>
</font></span></div>
<div><span style="font-size:12pt"><br>
</span></div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>