Re: [Dynagraph2-users] OLE build

[Jibin Ou <jib...@rw...>]

Hello Gordon,

Yes, I will release the wrapper when I finish my thesis and have time to clean the code. Meanwhile, I have a crucial question, regarding a feature in DynaGraph. As stated in the documentation, it is possible to fix positions of nodes in C++ API, using NailType.

N/A	NailType nail	N/A
(in) Specifies the mobility of the node. Only Y-axis nailing is available, and only in Dynadag. Default: none.

DG_NONAIL	The node can be positioned at the server's discretion.
DG_NAIL_X	The server attempts to keep the node at the same X position.
DG_NAIL_Y	The Y position (rank) is fixed.
DG_NAIL_BOTH	The node is immobile.

Does it mean that if I set the node position fixed, the coordinate will be kept definitely steady in the future operations? If so, this will be super useful.(See the figure in attachment) A user can manually drag a node and fix its position. I am planning to offer a UI in which a user can change the position of a node as well as incrementally add and delete nodes. Without the possibility to fix a position, all the manual changes will be erased after any change in the graph.

Best regards,

Jibin

On 01/09/14, Gordon Woodhull  <go...@wo...> wrote:

> Fantastic! Yes, I should have mentioned that the incrface text interface is the most robust and easiest to get working. I think there is a small performance penalty for serializing/deserializing to text and pushing the data through a pipe, but it shouldn't matter much.
> 
> If you'd care to release your c# incrface parse as open source, I'm sure others would appreciate it.
> 
> Cheers
> Gordon
> 
> 
> > On Jan 9, 2014, at 3:48 AM, Jibin Ou <jib...@rw...> wrote:
> > 
> > Hello guys,
> > 
> > thank you very much for your help. I didn't have enough time to try to build the patched version. Instead, I have partially translated the Dynagraph for grappa code into c#. Now I can interact with the executable file in .Net environment. I might also try the comdg in this weekend. 
> > 
> > Best regards, 
> > 
> > Jibin Ou
> > 
> > ----------------------------------------------------------------------------------------------------
> > 
> > 
> > Hi Jibin!
> > 
> > 
> > I think you mean, it's the only open-sourced directed graph layout algorithm.  Still.  And it's been over 10 years now.
> > 
> > Obviously, Dynagraph is not in active development right now, but what you are doing should work once the bit-rot is defeated.  I believe others were successful in the past with using the comdg objects in .NET.  
> > 
> > As you point out, though, the main problem is that there have been several releases of Windows since then, and even more releases of MSVC.  I think I did get it to build under Windows a couple of years ago, but I'm not sure if I updated the repo.
> > 
> > Even when they worked, the build instructions were a bit ungainly: 
> > http://www.dynagraph.org/building-dgwin.php
> > 
> > I guess the best I can say, unfortunately, is Patches Welcome!  Hopefully sometime I will find a free day to update everything, but I'm not sure when that will be.
> > 
> > Cheers,
> > Gordon
> > 
> > 
> > On Jan 2, 2014, at 11:41 AM, Jibin Ou <jib...@rw...> wrote:
> > 
> > Hi Gordon,
> > 
> > Happy new year! I am a student from Switzerland. I intend to develop an interactive debugger using DynaGraph, since it is the only open-sourced and dynamic layout algorithm in the market. However, the binary build of dgwin seems to be not compatible with Win 8. And when I tried to build it the dgwin solution, it failed with various kinds of errors. Is there any easy way which I can use DynaGraph in .NET? I expect to use comdg to get the positions of vertices and edges and draw them in WPF. Do you think this approach is meaningful?
> > 
> > Best regards,
> > 
> > Jibin Ou
> > 
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