<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta name="Microsoft Theme 2.00" content="Compass 011"><meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Monospaced;
panose-1:0 0 0 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Calibri","sans-serif";
color:#383838;}
h1
{mso-style-priority:9;
mso-style-link:"Titre 1 Car";
margin-top:24.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:16.0pt;
font-family:"Calibri","sans-serif";
color:#383838;}
h2
{mso-style-priority:9;
mso-style-link:"Titre 2 Car";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:14.0pt;
font-family:"Calibri","sans-serif";
color:#383838;
font-weight:normal;}
h3
{mso-style-priority:9;
mso-style-link:"Titre 3 Car";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:13.0pt;
font-family:"Calibri","sans-serif";
color:#383838;
font-weight:normal;}
h4
{mso-style-priority:9;
mso-style-link:"Titre 4 Car";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:14.0pt;
font-family:"Calibri","sans-serif";
color:#383838;
font-weight:normal;}
h5
{mso-style-priority:9;
mso-style-link:"Titre 5 Car";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:13.0pt;
font-family:"Calibri","sans-serif";
color:#383838;
font-weight:normal;}
h6
{mso-style-priority:9;
mso-style-link:"Titre 6 Car";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
color:#383838;
font-weight:normal;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#B24B45;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#45201E;
text-decoration:underline;}
pre
{mso-style-priority:99;
mso-style-link:"Préformaté HTML Car";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Texte de bulles Car";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Calibri","sans-serif";
color:#383838;}
span.Titre1Car
{mso-style-name:"Titre 1 Car";
mso-style-priority:9;
mso-style-link:"Titre 1";
font-family:"Verdana","sans-serif";
color:#383838;
font-weight:bold;}
span.Titre2Car
{mso-style-name:"Titre 2 Car";
mso-style-priority:9;
mso-style-link:"Titre 2";
font-family:"Verdana","sans-serif";
color:#383838;}
span.Titre3Car
{mso-style-name:"Titre 3 Car";
mso-style-priority:9;
mso-style-link:"Titre 3";
font-family:"Verdana","sans-serif";
color:#383838;}
span.Titre4Car
{mso-style-name:"Titre 4 Car";
mso-style-priority:9;
mso-style-link:"Titre 4";
font-family:"Verdana","sans-serif";
color:#383838;}
span.Titre5Car
{mso-style-name:"Titre 5 Car";
mso-style-priority:9;
mso-style-link:"Titre 5";
font-family:"Verdana","sans-serif";
color:#383838;}
span.Titre6Car
{mso-style-name:"Titre 6 Car";
mso-style-priority:9;
mso-style-link:"Titre 6";
font-family:"Verdana","sans-serif";
color:#383838;}
span.TextedebullesCar
{mso-style-name:"Texte de bulles Car";
mso-style-priority:99;
mso-style-link:"Texte de bulles";
font-family:"Tahoma","sans-serif";
color:#383838;}
span.EmailStyle25
{mso-style-type:personal;
color:#383838;}
span.EmailStyle26
{mso-style-type:personal;
color:#383838;}
span.EmailStyle27
{mso-style-type:personal-reply;
color:#383838;}
span.PrformatHTMLCar
{mso-style-name:"Préformaté HTML Car";
mso-style-priority:99;
mso-style-link:"Préformaté HTML";
font-family:"Courier New";}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=FR link="#B24B45" vlink="#45201E"><div class=WordSection1><p class=MsoNormal>Bonjour<o:p></o:p></p><p class=MsoNormal>Effectivement dans la fonction mapsound, z est négatif car voila ce qui est écrit ligne 44 de cette fonction<o:p></o:p></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Monospaced","serif";color:#32B9B9'>grayplot</span><span style='font-size:9.5pt;font-family:"Monospaced","serif";color:#4A55DB'>(</span><span style='font-size:9.5pt;font-family:"Monospaced","serif";color:black'>x_abs,y_abs,</span><span style='font-size:9.5pt;font-family:"Monospaced","serif";color:#5C5C5C'>-</span><span style='font-size:9.5pt;font-family:"Monospaced","serif";color:black'>M</span><span style='font-size:9.5pt;font-family:"Monospaced","serif";color:#4A55DB'>)<o:p></o:p></span></p><p class=MsoNormal>Connaissez vous la raison de ce choix ? <o:p></o:p></p><p class=MsoNormal>Pour moi z représente l’amplitude pour une fréquence donnée à un instant donné et devrait être positif<o:p></o:p></p><p class=MsoNormal>Merci d’avance<o:p></o:p></p><p class=MsoNormal>Cordialement<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:11.0pt;color:#00B050'>_______________________________<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p></div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 align=left style='border-collapse:collapse;margin-left:4.8pt;margin-right:4.8pt'><tr style='height:83.25pt'><td width=283 valign=top style='width:212.15pt;padding:0cm 5.4pt 0cm 5.4pt;height:83.25pt'><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0 align=left style='border-collapse:collapse;margin-left:4.8pt;margin-right:4.8pt'><tr style='height:83.25pt'><td width=283 valign=top style='width:212.15pt;padding:0cm 5.4pt 0cm 5.4pt;height:83.25pt'><p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:7.05pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:margin;mso-element-left:center;mso-element-top:-3.9pt;mso-height-rule:exactly'><b><span style='font-size:11.0pt;font-family:"Times New Roman","serif";color:#00B050'><o:p> </o:p></span></b></p><p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:7.05pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:margin;mso-element-left:center;mso-element-top:-3.9pt;mso-height-rule:exactly'><b><span style='font-size:8.0pt;font-family:"Times New Roman","serif";color:#00B050'>Marie de Flaugergues<o:p></o:p></span></b></p><p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:7.05pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:margin;mso-element-left:center;mso-element-top:-3.9pt;mso-height-rule:exactly'><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:7.05pt;mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:margin;mso-element-left:center;mso-element-top:-3.9pt;mso-height-rule:exactly'><span style='font-size:11.0pt'><o:p> </o:p></span></p></td><td width=146 valign=top style='width:109.8pt;padding:0cm 5.4pt 0cm 5.4pt;height:83.25pt'></td></tr></table></td><td width=146 valign=top style='width:109.8pt;padding:0cm 5.4pt 0cm 5.4pt;height:83.25pt'></td></tr></table><p class=MsoNormal align=center style='text-align:center'><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>De :</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Adrien Vogt-Schilb [mailto:vogt@centre-cired.fr] <br><b>Envoyé :</b> mercredi 4 janvier 2012 18:07<br><b>À :</b> users-fr@lists.scilab.org<br><b>Objet :</b> Re: [users-fr] affichage colorbar<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Bonjour<br><br>En lançant l'exemple de Serge, j'obtiens une colorbar dont la valeur la plus basse -0.26, est en bas; et la valeur plus haute, -0.00029 est en haut. Avez vous bien vu qu'il s'agit de nombre négatifs?<br><br>Serge, help mapsound ne documente pas w.<br><br><br>On 04/01/2012 18:00, Marie de Flaugergues wrote: <o:p></o:p></p><p class=MsoNormal>Bonjour<o:p></o:p></p><p class=MsoNormal>Merci de cette réponse, c’était bien ce que je cherchais.<o:p></o:p></p><p class=MsoNormal>Encore une question.<o:p></o:p></p><p class=MsoNormal>Est-ce que l’un d’entre vous c’est inverser l’affichage (haut<->bas) de la colorbar ?<o:p></o:p></p><p class=MsoNormal>En effet les valeurs les plus basse sont affichées en haut et non en bas.<o:p></o:p></p><p class=MsoNormal>Merci<o:p></o:p></p><p class=MsoNormal>Cordialement<o:p></o:p></p><div><p class=MsoNormal><span style='font-size:11.0pt;color:#00B050'>M de flaugergues</span><o:p></o:p></p></div><p class=MsoNormal align=center style='text-align:center'><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Je suppose que vous voulez parler de la fonction mapsound et non de analyze.<br>analyze fait essentiellement une décomposition en serie de fourier du signal et en affiche le module<br><br>Le code couleur de mapsound depend de la table de couleur qui a été definie pour la fenetre graphique. on peut compléter l'exemple donné dans la page d'aide de mapsound pour afficher une colorbar :<br><br>t=soundsec(0.5);<br><br>// Then we generate the sound.<br>s=sin(440*t)+sin(220*t)/2+sin(880*t)/2;<br>[nr,nc]=size(t);<br>s(nc/2:nc)=sin(330*t(nc/2:nc));<br>f=gcf();clf;f.color_map=jetcolormap(32);<br><br>mapsound(s);<br><br>e=gce();colorbar(min(e.data.z),max(e.data.z));<br><br>Serge Steer <br>INRIA<o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Times New Roman","serif";color:#330000'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-family:"Times New Roman","serif";color:#330000'>-- <br>Adrien Vogt-Schilb (Cired) <br>Tel: (+33) 1 43 94 <b>73 77</b><o:p></o:p></span></p></div></div></body></html>