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Posted by itschy on 01/19/08 19:04
On 19 Jan., 19:47, "Luuk" <l...@invalid.lan> wrote:
> "itschy" <goo...@00l.de> schreef in berichtnews:f3021843-6e89-4177-aaf1-078582ec9197@i7g2000prf.googlegroups.com...
>
>
>
> > On 19 Jan., 19:08, "Luuk" <l...@invalid.lan> wrote:
> >> "itschy" <goo...@00l.de> schreef in
> >> berichtnews:58f6331e-c13b-4226-a64c-9f7bc1ea8726@v67g2000hse.googlegroups.com...
>
> >> > On 18 Jan., 23:31, Jensen Somers <jensen.som...@gmail.com> wrote:
> >> >> PHP has support to create images, so my guess is - if I understand the
> >> >> problem correctly - you'll just need to find a way to draw dots and
> >> >> lines, making them thicker depending on the weight they have.
>
> >> > Not quite.
> >> > You missed the part, where I mentiond that I do not have any
> >> > coordinates of the nodes. Thus I'cant just draw them, cause I don't
> >> > know where. :)
> >> > What I seek is some solution, which finds a representation according
> >> > to the information I have about the edges (that is, connected or not,
> >> > and if, what weight/line length do they have).
>
> >> > E.g.:
> >> > I have three nodes A,B,C and 3 connections a(A,B,3), b(B,C,4), c(A,C,
> >> > 5) (each with infos about from_node, to_node and weight/length.
> >> > In this szenario, there are only two possible ways to draw that
> >> > network correctly:
> >> > 5
> >> > A-----C B
> >> > 3\ /4 3/ \4
> >> > B A-----C
> >> > 5
>
> >> > And their rotations.
> >> > I try to find some tool/algorithm which is able to do this (and draw
> >> > it) in php.
> >> > Tough luck I guess... :(
>
> >> > itschy
>
> >> aaah, you mean something
> >> like:http://www.graphviz.org/Gallery/directed/hello.html
> >> this is a sample with nodes 'hello' and 'world'
> >> but this sollution does not give you weight...
> >> (see also:http://www.graphviz.org/webdot/basic.html)
>
> >> and, of course, this is not a PHP solution...
>
> > Thanks for your answer.
> > I know the dot package, actually wrote my master thesis using it, but
> > as you said, its not a php solution. :(
>
> > To anticipate the next answer in this thread: I know about cgi etc,
> > but I do not have any rights on the server this is supposed to run, so
> > i search a PURE php solution.
>
> as you know the stuff.....
>
> and you know php.net
>
> it took me 5 mins to create this:
> <?php
> header("Content-type: image/png");
> $im = @imagecreate(110, 120)
> or die("Cannot Initialize new GD image stream");
> $background_color = imagecolorallocate($im, 0, 0, 0);
> $text_color = imagecolorallocate($im, 233, 14, 91);
> //imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
> imageline($im, 10,10, 100, 10, $text_color);
> imageline($im, 10,10, 50, 110, $text_color);
> imageline($im, 100,10, 50, 110, $text_color);
> imagepng($im);
> imagedestroy($im);
> ?>
>
> which is a nice triangular... ;-)
> (thanks to the docs..!!!)
>
> i whish you suc6..
Luuk, please explain to me how you do that without ANY explicit
coordinates, like 10,10,100,10!
Please, everybody, READ what I write! cheers
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