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<div class="moz-cite-prefix">Le 19/02/2021 à 09:25, anna28 a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:1613723101816-0.post@n3.nabble.com">
<pre class="moz-quote-pre" wrap="">Hi all,
I would need a help to improve my plot.
I must graph the trend of 20 variables with the function plot(x); I would
like to assign a different color/mark to each variable in order to make
graph understanding immedaite.
At the moment, I do like that and it works:
colour=['.r-','.g-','.k-','.b-','.m-','.r:','.g:','.k:','.b:','.m:','.r--','.g--','.k--','.b--','.m--','.r-.','.g-.','.k-.','.b-.','.m-.'];
for j=1:20
plot(TestPH(j,:),colour(j));
end
but the plot is not very clear. I would like to add different color and to
reduce line styles, that are difficult to recognize in the plot.
Is there any way to add colors in the "coulour" array? (I cannot use white,
yellow and cyan because difficult to see with white background).
thanks!
Anna
</pre>
</blockquote>
<p>Example of plot() post-processing "vectorized" over curves:<br>
</p>
<pre style="font-family:Monospaced;font-style:normal;font-size:14.0;"><span style="color:rgb(0,0,0);">x</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(50,185,185);">linspace</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">0</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">10</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">100</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">phases</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(188,143,143);">0</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(188,143,143);">0.15</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(188,143,143);">1.5</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(74,85,219);">[</span><span style="color:rgb(0,0,0);">X</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(0,0,0);">P</span><span style="color:rgb(74,85,219);">]</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(174,92,176);text-decoration:underline;">ndgrid</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(0,0,0);">x</span><span style="color:rgb(0,0,0);">,</span> <span style="color:rgb(0,0,0);">phases</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">h</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(174,92,176);text-decoration:underline;">plot</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(0,0,0);">x</span><span style="color:rgb(0,0,0);">,</span> <span style="color:rgb(50,185,185);">sin</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(0,0,0);">X</span><span style="color:rgb(92,92,92);">+</span><span style="color:rgb(0,0,0);">P</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(100,174,100);font-style:italic;">// No explicit loop over curves is required:</span>
<span style="color:rgb(0,0,0);">h</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">foreground</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(188,143,143);">10</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(255,170,0);">:</span><span style="color:rgb(188,143,143);">30</span><span style="color:rgb(0,0,0);">;</span> <span style="color:rgb(100,174,100);font-style:italic;">// indexed colors</span>
<span style="color:rgb(100,174,100);font-style:italic;">// check for some curves</span>
<span style="color:rgb(0,0,0);">h</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">1</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">foreground</span>
<span style="color:rgb(0,0,0);">h</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">10</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">foreground</span>
<span style="color:rgb(100,174,100);font-style:italic;">// Until color() is vectorized, we could also use named colors as in</span>
<span style="color:rgb(0,0,0);">colors</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(74,85,219);">[</span><span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">blue</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">scilabcyan4</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">pink</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">orange</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">red</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">green</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">magenta</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">gray50</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">slateblue</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">peru</span><span style="color:rgb(188,143,143);">"</span> <span style="color:rgb(188,143,143);">"</span><span style="color:rgb(188,143,143);">sienna</span><span style="color:rgb(188,143,143);">"</span><span style="color:rgb(74,85,219);">]</span><span style="color:rgb(0,0,0);">;</span> <span style="color:rgb(100,174,100);font-style:italic;">// named colors =</span><span style="color:rgb(100,174,100);font-style:italic;">></span><span style="color:rgb(100,174,100);font-style:italic;"> help color_list</span>
<span style="color:rgb(0,0,0);">h</span><span style="color:rgb(92,92,92);">.</span><span style="color:rgb(170,170,170);">foreground</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(50,185,185);">addcolor</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(50,185,185);">name2rgb</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(0,0,0);">colors</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(92,92,92);">/</span><span style="color:rgb(188,143,143);">255</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;
Actually using named colors in linespec out of the 8 special ones could be useful, since Scilab's set of named colored is quite rich.
Samuel
</span><span style="color:rgb(0,0,0);"></span></pre>
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