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----- Message d'origine ----- <br>
De : Lucio Agostinho Rocha <br>
Date : 17/05/2009 20:26:
<blockquote cite="mid:84586.19399.qm@web52711.mail.re2.yahoo.com"
type="cite">
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valign="top">.../...<br>
Then, I tried to insert a new position in each list, like this:<br>
<br>
tx=length(x)+1;<br>
ty=length(y)+1;<br>
x(1,tx)=2;<br>
y(1,ty)=1;<br>
g(tx,ty)= x(tx) .* sin((4*%pi) * x(tx)) - y(ty) .* sin ( (4*%pi) *
y(ty) + %pi ) + 1;<br>
<br>
plot3d(x,y,g)<br>
<br>
But this don't work. I've several values for x and y like '0.8987...'
and '-0.321...'. How can I plot this points in my function? Some
suggestion?<br>
<br>
Thanks in advance,<br>
<br>
Lucio<br>
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</blockquote>
Here is a trick that may work for this purpose:<br>
After plot3d(), do a plot2d(Xp,Yp) where Xp and Yp are the 2 first
coordinates of your<br>
(Xp,Yp,Zp) set of points (Xp, Yp, Zp are vectors of same lengths N for
N points to be marked)<br>
<br>
Then, do: <br>
ca=gca();<br>
cc=ca.children(1).children(1);<br>
cc.data(:,3)=Zp; // Be carefull: Zp must be a column-vector<br>
cc.line_mode='off';<br>
cc.mark_mode='on';<br>
cc.mark_style=8; // for diamonds. Run getmark() or see help
polyline_properties for other marks<br>
cc.mark_foreground=color('red');<br>
<br>
This should yield what you are expecting<br>
<br>
Regards<br>
Samuel<br>
<br>
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