<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10pt;">Hi,<br><br>If it is not necessary to have real transparent color mixing, but just want to have the transparent effect, you could try to play with the "pixel_drawing_mode". <br><pre style="font-family:Monospaced;font-style:normal;font-size:16.0;"><span style="color:rgb(0,0,0);">f</span> <span style="color:rgb(92,92,92);">=</span> <span style="color:rgb(50,185,185);">figure</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">"background"</span><span style="color:rgb(0,0,0);">,</span> <span style="color:rgb(188,143,143);">1</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">"pixel_drawing_mode"</span><span style="color:rgb(0,0,0);">,</span> <span style="color:rgb(188,143,143);">"or"</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(50,185,185);">plot2d</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);">0</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">1</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">"010"</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">" "</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(74,85,219);">])</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">x</span><span style="color:rgb(92,92,92);">=</span><span style="color:rgb(50,185,185);">sin</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(92,92,92);">*</span><span style="color:rgb(218,112,214);">%pi</span><span style="color:rgb(92,92,92);">*</span><span style="color:rgb(74,85,219);">(</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);">4</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(92,92,92);">/</span><span style="color:rgb(188,143,143);">5</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(0,0,0);">y</span><span style="color:rgb(92,92,92);">=</span><span style="color:rgb(50,185,185);">cos</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(92,92,92);">*</span><span style="color:rgb(218,112,214);">%pi</span><span style="color:rgb(92,92,92);">*</span><span style="color:rgb(74,85,219);">(</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);">4</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(92,92,92);">/</span><span style="color:rgb(188,143,143);">5</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(50,185,185);">plot2d</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);">0</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">1</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">"010"</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">" "</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(74,85,219);">[</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(92,92,92);">-</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(0,0,0);">,</span><span style="color:rgb(188,143,143);">2</span><span style="color:rgb(74,85,219);">])</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(174,92,176);text-decoration:underline;">gca</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(92,92,92);">=</span> <span style="color:rgb(188,143,143);">12</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(50,185,185);">xfpoly</span><span style="color:rgb(74,85,219);">(</span><span style="color:rgb(0,0,0);">x,y</span><span style="color:rgb(74,85,219);">)</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(174,92,176);text-decoration:underline;">gca</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(92,92,92);">=</span> <span style="color:rgb(188,143,143);">27</span><span style="color:rgb(0,0,0);">;</span>
<span style="color:rgb(50,185,185);">xfpoly</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(188,143,143);">0.3</span><span style="color:rgb(0,0,0);">,y</span><span style="color:rgb(92,92,92);">+</span><span style="color:rgb(188,143,143);">0.3</span><span style="color:rgb(74,85,219);">)</span><br></pre><div><br></div><div><span style="color:rgb(74,85,219);"><img src="cid:0.28869202910.4269594054873061049.16e5db207a5__inline__img__src" orig_width="610" orig_height="460" width="400" height="301" size_option="bestfit"></span><br></div><br>example from <a href="https://help.scilab.org/docs/6.0.2/en_US/pixel_drawing_mode.html" target="_blank">https://help.scilab.org/docs/6.0.2/en_US/pixel_drawing_mode.html</a><br><br>rgds,<br>CL<br><br><div class="zmail_extra" style="" data-zbluepencil-ignore="true"><br><div id="Zm-_Id_-Sgn1">---- On Sat, 09 Nov 2019 21:19:44 +0800 <b>jaipur <<a href="mailto:acj119@nifty.com" target="_blank">acj119@nifty.com</a>></b> wrote ----<br></div><br><blockquote style="border-left: 1px solid rgb(204, 204, 204); padding-left: 6px; margin: 0px 0px 0px 5px;"><div>Dear all <br> <br>When making a polygon by xpoly for example, can we set transparency effect <br>as the following polygon? <br>If it's possible, could you suggest the way of doing? <br> <br>Regards <br>Hiroshi Tachihara <br> <br><<a href="http://mailinglists.scilab.org/file/t497089/transparency.png" target="_blank">http://mailinglists.scilab.org/file/t497089/transparency.png</a>> <br> <br> <br> <br>-- <br>Sent from: <a href="http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html" target="_blank">http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html</a> <br>_______________________________________________ <br>users mailing list <br><a href="mailto:users@lists.scilab.org" target="_blank">users@lists.scilab.org</a> <br><a href="http://lists.scilab.org/mailman/listinfo/users" target="_blank">http://lists.scilab.org/mailman/listinfo/users</a> <br></div></blockquote></div><div><br></div></div><br></body></html>