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Home » Eclipse Projects » GEF » DirectedGraphLayout: Algorithm used
DirectedGraphLayout: Algorithm used [message #177283] Wed, 13 April 2005 14:56 Go to next message
Donna Gresh is currently offline Donna GreshFriend
Messages: 30
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I use the DirectedGraphLayout (and am quite happy with it). I was
wondering if there was any description of the algorithm (or commonly used
name for it) other than reading the code and trying to figure out exactly
how it does what it does.

Thanks
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<br><font size=2 face="sans-serif">I use the DirectedGraphLayout (and am
quite happy with it). I was wondering if there was any description of the
algorithm (or commonly used name for it) other than reading the code and
trying to figure out exactly how it does what it does. </font>
<br>
<br><font size=2 face="sans-serif">Thanks</font>
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Re: DirectedGraphLayout: Algorithm used [message #177294 is a reply to message #177283] Wed, 13 April 2005 15:02 Go to previous messageGo to next message
Donna Gresh is currently offline Donna GreshFriend
Messages: 30
Registered: July 2009
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and yes I know about the description in the help. I'm mainly wondering if
there's a name for it "in the literature"
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<br><font size=2 face="sans-serif">and yes I know about the description
in the help. I'm mainly wondering if there's a name for it &quot;in the
literature&quot;</font>
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Re: DirectedGraphLayout: Algorithm used [message #177300 is a reply to message #177294] Wed, 13 April 2005 15:22 Go to previous messageGo to next message
Eclipse UserFriend
Originally posted by: none.us.ibm.com

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We use a network simplex algorithm for assigning ranks. We also use =
this same algorithm for adjusting final x coordinates by creating an =
auxilary graph as described by Stephen North et al (A technique for =
directed graphs or something). The rank ordering is done using the =
tried but true approach of sweeping up and down the rows and assigning =
values to the nodes and sorting them (Sugiyama). We some modified =
barycenter method I think.

<gresh@us.ibm.com> wrote in message =
news:d3jc9u$5a0$2@news.eclipse.org...

and yes I know about the description in the help. I'm mainly wondering =
if there's a name for it "in the literature"
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<META http-equiv=3DContent-Type content=3D"text/html; =
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<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>We use a network simplex algorithm for =
assigning=20
ranks.&nbsp; We also use this same algorithm for adjusting final x =
coordinates=20
by creating an auxilary graph as described by Stephen North et al (A =
technique=20
for directed graphs or something).&nbsp; The rank ordering&nbsp;is done =
using=20
the tried but true approach of sweeping up and down the rows and =
assigning=20
values to the nodes and sorting them (Sugiyama).&nbsp; We some modified=20
barycenter method I think.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
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<DIV>&lt;<A href=3D"mailto:gresh@us.ibm.com">gresh@us.ibm.com</A>&gt; =
wrote in=20
message <A=20
=
href=3D"news:d3jc9u$5a0$2@news.eclipse.org">news:d3jc9u$5a0$2@news.eclips=
e.org</A>...</DIV><BR><FONT=20
face=3Dsans-serif size=3D2>and yes I know about the description in the =
help. I'm=20
mainly wondering if there's a name for it "in the=20
literature"</FONT></BLOCKQUOTE></BODY></HTML>

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Re: DirectedGraphLayout: Algorithm used [message #177315 is a reply to message #177300] Wed, 13 April 2005 16:51 Go to previous message
Donna Gresh is currently offline Donna GreshFriend
Messages: 30
Registered: July 2009
Member
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Thank you-- your description is helpful to me--
Donna
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<br><font size=2 face="sans-serif">Thank you-- your description is helpful
to me--</font>
<br><font size=2 face="sans-serif">Donna</font>
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