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Re: [Plplot-general] how to fill a polygon with plplot (pdl interface)
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From: Bruno P. <bru...@cl...> - 2006-09-29 07:30:39
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Thanks, Hazen! That's what I was looking for!<br>
<br>
I've found it in "The PLplot Plotting Library / Programmer's Reference
Manual - by MJ LeBrun & G. Furnish"<br>
but this manual is C&Fortran oriented and plfill is only descibe
with the "n" argument which refers to the vertices to be applied in<br>
the polygon.<br>
<br>
Do anyone know a more PDL oriented reference manual? (the description
of the module in cpan is a bit rough...)<br>
<br>
best,<br>
<br>
Bruno<br>
<br>
<a class="moz-txt-link-abbreviated" href="mailto:hba...@ma...">hba...@ma...</a> a écrit :
<blockquote cite="mid...@ma..."
type="cite"><br>
On Sep 28, 2006, at 5:47 AM, Bruno Picard wrote:
<br>
<br>
<blockquote type="cite"> Fast:
<br>
Is there a plplot equivalent to the matlab function FILL?:
<br>
FILL Filled 2-D polygons.
<br>
FILL(X,Y,C) fills the 2-D polygon defined by vectors X and Y
<br>
with the color specified by C. The vertices of the polygon
<br>
are specified by pairs of components of X and Y. If necessary,
<br>
the polygon is closed by connecting the last vertex to the first.
<br>
</blockquote>
<br>
I believe that the function you seek is called plfill.
<br>
<br>
An example using the PDL interface:
<br>
<br>
#!/usr/bin/perl -w
<br>
<br>
use strict;
<br>
use PDL;
<br>
use PDL::Graphics::PLplot;
<br>
<br>
plspage(0, 0, 300, 300, 0, 0);
<br>
plinit();
<br>
pladv(0);
<br>
plvsta();
<br>
plwind(0.0, 4.0, 0.0, 4.0);
<br>
plbox(0.0, 0, 0.0, 0, "bcnst", "bcnstv");
<br>
<br>
plcol0(2);
<br>
my $x = pdl(1.0, 1.0, 2.0, 2.5);
<br>
my $y = pdl(1.0, 2.2, 2.1, 1.0);
<br>
plfill($x, $y);
<br>
<br>
plend();
<br>
<br>
<br>
The polygon is automatically closed and is drawn with the current
color. Also, note that the PDL interface automatically fills in the "n"
in plfill(n,x,y).
<br>
<br>
best,
<br>
-Hazen
<br>
<br>
<br>
<br>
<br>
<br>
</blockquote>
<br>
<div class="moz-signature">-- <br>
<div align="center"><u>____________________________________________________</u>
<br>
<font face="Verdana" size="2">Dr. Bruno Picard<br>
Dép. Traitement de la Mesure et Segment Sol <br>
(Data Analysis and Ground Processing Unit)
<br>
CLS<br>
Dir. Océanographie Spatiale<br>
8-10 rue Hermès, 31520 Ramonville Saint Agne, France<br>
<br>
Tél: (+33)5.61.39.37.37, Fax: (+33)5.61.39.37.82<br>
Mél: <a href="mailto:bru...@cl...">bru...@cl...</a><br>
Toile : <a href="http://julie-et-bruno.9online.fr/nono/cadrenono.html"
eudora="autourl">http://julie-et-bruno.9online.fr/nono/cadrenono.html</a><br>
</font><u>____________________________________________________</u><br>
<img src="cid:par...@cl..."><br>
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