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Subject Author Date
use perl to draw Venn Diagram Ela 04-27-2008
Posted by Ela on April 27, 2008, 7:59 pm
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 Perl has a GD library. But its circle, arc, line and alike seem to have
limited applications.

I just want to plot 2 circles, one with solid line and another with dotted
line, overlapping with each other according to an input overlapping
parameter (I guess this feature may be achieved by locating the 2 centers
accordingly). Finally write some texts in the centers of the 2 circles. Any
suggestions? Matlab can achieve that easily and is Perl really unable to do
that?





Posted by Gunnar Hjalmarsson on April 27, 2008, 8:51 pm
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 Ela wrote:
> Perl has a GD library.

No. Perl has an interface to the GD Graphics Library.

http://search.cpan.org/perldoc?GD

> But its circle, arc, line and alike seem to have limited applications.

How did you come to that conclusion?

> I just want to plot 2 circles, one with solid line and another with dotted
> line, overlapping with each other according to an input overlapping
> parameter (I guess this feature may be achieved by locating the 2 centers
> accordingly). Finally write some texts in the centers of the 2 circles.

Interesting. Have you written any code yet?

--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl

Posted by Ela on April 28, 2008, 12:21 am
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>> I just want to plot 2 circles, one with solid line and another with
>> dotted line, overlapping with each other according to an input
>> overlapping parameter (I guess this feature may be achieved by locating
>> the 2 centers accordingly). Finally write some texts in the centers of
>> the 2 circles.
>
> Interesting. Have you written any code yet?
>
> --
> Gunnar Hjalmarsson
> Email: http://www.gunnar.cc/cgi-bin/contact.pl

In Matlab, I can specify parameters like: LineWidth, LineStyle and so. I'm
not asking others to post their codes but would like to know whether such
parameters exist or not. Because after reading

Graphics_Programming_with_Perl by Martien_Verbruggen-Manning

I did not find any clues.



Posted by Gunnar Hjalmarsson on April 28, 2008, 12:48 am
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Ela wrote:
> Gunnar Hjalmarsson wrote:
>> Ela wrote:
>>> I just want to plot 2 circles, one with solid line and another with
>>> dotted line, overlapping with each other according to an input
>>> overlapping parameter (I guess this feature may be achieved by
>>> locating the 2 centers accordingly). Finally write some texts in the
>>> centers of the 2 circles.
>>
>> Interesting. Have you written any code yet?
>
> In Matlab, I can specify parameters like: LineWidth, LineStyle and so. I'm
> not asking others to post their codes but would like to know whether such
> parameters exist or not.

Then read the docs for GD.pm (link provided in my previous message).

> Because after reading
>
> Graphics_Programming_with_Perl by Martien_Verbruggen-Manning
>
> I did not find any clues.

But you didn't read the GD.pm docs, right?

--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl

Posted by Ela on April 28, 2008, 10:45 am
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> Then read the docs for GD.pm (link provided in my previous message).
>
>> Because after reading
>>
>> Graphics_Programming_with_Perl by Martien_Verbruggen-Manning
>>
>> I did not find any clues.
>
> But you didn't read the GD.pm docs, right?
>
> --
Thanks a lot, Gunnar Hjalmarsson. But the doc and google search don't tell
me how to use gdstyled and gdbrushed to draw a circle with a dashed/dotted
line.




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