Re: [zvtm-devel] Zgrviewer DOT file parser

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Ok. I think I found the solution to the problem I mentioned below. I did not
think it this random retrieval way, while posting the query below. I was
thinking only in serial retrieval way from svg file.

Posting it here just for reference for others in case needed.

Using method getNode(title) from the LogicalStructure lstruct.

LNode testNode = grMngr.lstruct.getNode("n0");
As long as "n0" is the first node in the dot file representation,  above
instruction will give me back the first root node from the lstruct using
which I can traverse in the entire list of nodes.

I think I wont be having any more question now, that this thing is solved.
Once again I appreciate your patience and help in detailed manner.

Thank you,
Mrunal

On Mon, Oct 24, 2011 at 11:55 PM, Mrunal Gawade <mru...@gm...>wrote:

> Thank you for your replies.
>
> Another query related to parsing.
>
> I have noted following for this scenario. Given a input dot file which is
> loaded using both dot and svg pipeline.
>
> 1. svg file generated in tmp directory differs in the sequence in which
> node numbers and their labels appear with input dot file
> 2. dot file generated in tmp directory has same sequence for nodes as in
> the original input dot file
>
> For example. If input dot file has a sequence of nodes 1,2,3,4,5,6,7,8 as
> they appear linearly in dot file.
>
> 1. svg file generated changes this sequence and it could be any thing like
> 1,2,3,5,7,8,4
> 2. dot file generated keeps the sequence same that is 1,2,3,4,5,6,7,8.
>
> In continuation with the same, when "lstruct" in buildLogicalStructure is
> referred in the debugger, the sequence of nodes that appear there is totally
> different. i.e. it could be as well be something like 8,7,1,2,3,4,5 etc.
>
> However, the nodes accessed using "graph" structure accessed in dot
> pipeline provides exact correct sequence as is present in the dot file i.e.
> 1,2,3,4,5,6,7,8.
>
> I was able to access "lstruct" individual nodes glyphs using gl =
> lstruct.nodes[i].getGlyphs();  in a loop, however since "lstruct" breaks the
> sequence totally, * I am not able to understand how to find the starting
> node, i.e. 1 in the above case, or the first node present in the dot file.
> *
>
> I used a test code such as below to highlight the nodes as they are read
> from the lstruct sequentially. The actual functionality needed is a
> permanent change of color instead of highlight of nodes as they are
> traversed and I am still experimenting with this.
>
>     for (int i=0;i<grMngr.gl.length;i++){
>           grMngr.mainView.centerOnGlyph(grMngr.gl[i],
> grMngr.mSpace.getCamera(0), ConfigManager.ANIM_MOVE_LENGTH, true,
>           ConfigManager.MAG_FACTOR);// * 1.5f);
>
>           grMngr.highlight(grMngr.gl[i]);
>      }
>      grMngr.mainView.repaint();
>
>
> These graph nodes will be combined with a trace, so the sequentiality is
> the crux of display, since I will be parallelly reading a trace file
> sequentially to match it here.
>
> Please guide.
>
>
> Thank you,
> Mrunal
>
>
>
>
>
>
>
> On Mon, Oct 24, 2011 at 5:43 PM, Emmanuel Pietriga <
> Emm...@lr...> wrote:
>
>>
>> On 24 oct. 2011, at 10:29, Mrunal Gawade <mru...@gm...> wrote:
>>
>> One quick question based on one of the sentences you mentioned below.
>>
>>  On Fri, Oct 21, 2011 at 1:45 PM, Emmanuel Pietriga <
>>>> emm...@in...> wrote:
>>>>
>>>>> When using the SVG pipeline, ZGRViewer tries to reconstruct the logical
>>>>> structure of the graph based on the information provided in the SVG. This
>>>>> can fail sometimes for complex graphs that contain subgraphs, but for graphs
>>>>> such as yours it should work, I believe (it works fine with the example file
>>>>> you provided).
>>>>>
>>>>> The highest number of nodes that are seen in the graphs I am trying to
>> render are upto 250k. Do you think there could be some problem based on the
>> sentence "This can fail sometimes for complex graphs ................".
>>
>>
>>
>> Unlikely, provided the structure remains conceptually simple. Size per se
>> should not be a problem. However, 250knodes might be more than what we can
>> handle in terms of smooth navigation / refresh rate.
>>
>>
>> (sent from phone)
>> --
>> Emmanuel Pietriga
>> INRIA Saclay - In Situ
>> http://pages.saclay.inria.fr/emmanuel.pietriga
>>
>>
>>
>>
>>
>> Regards,
>> Mrunal
>>
>>
>>
>>  On 20 oct. 2011, at 22:11, Mrunal Gawade wrote:
>>>>>
>>>>> > Thanks for the quick reply.
>>>>> >
>>>>> > I am not able to understand how to extract graph information from the
>>>>> svgpipeline. In case of dot pipeline I am able to get the root of the graph
>>>>> during the loading of dot file, using which I was planning to navigate in
>>>>> the graph. However, I am not understanding how to navigate using svg because
>>>>> it does not directly expose node information the way dot exposes.
>>>>> >
>>>>> > This is what I have to do. Our use case consists of database
>>>>> execution plans which are represented graphically based on their execution
>>>>> trace. So we might generated graphs with nodes upto 250k. We want to create
>>>>> a dynamic ability to graphically view our textual trace of instructions by
>>>>> mapping the contents of the dot file nodes to equivalent parameters in the
>>>>> trace file instructions.
>>>>> >
>>>>> > For this, I am planning to use two << , >> type buttons on click of
>>>>> which the trace replay will start from the starting node in the dot file.
>>>>> Each click will take me to the next node in the graph. Which next node to
>>>>> select information will come from the trace file execution we have. pc field
>>>>> in trace file matches to the node number in dot file. Views will be adjusted
>>>>> accordingly to match zoom level and movement across graphs accordingly. So
>>>>> for example it might happen that  the first starting node is at the top of
>>>>> the graph, and the next node in the execution is at the bottom. So on
>>>>> clicking next button, I would be required to go to the end of the graph at
>>>>> next node. And this thing will continue till trace instructions gets over.
>>>>> >
>>>>> > The attached file contains a sample dot file, a sample pdf file for
>>>>> graph output, and a sample trace file. Thanks for your time and help. I
>>>>> sincerely appreciate it.
>>>>> >
>>>>> >
>>>>> > Thanks,
>>>>> > Mrunal
>>>>> >
>>>>> >
>>>>> >
>>>>> >
>>>>> > On Thu, Oct 20, 2011 at 11:48 PM, Emmanuel Pietriga <
>>>>> emm...@in...> wrote:
>>>>> > Hi,
>>>>> >
>>>>> > Can you end us an example DOT file to reproduce the error? Note that
>>>>> the DOT pipeline was written 6 years ago and hasn't really been maintained
>>>>> since. For now the SVG pipeline is the preferred way.
>>>>> >
>>>>> > Emmanuel
>>>>> > --
>>>>> > Emmanuel Pietriga
>>>>> > INRIA Saclay - In Situ
>>>>> > http://pages.saclay.inria.fr/emmanuel.pietriga
>>>>> >
>>>>> > On 20 oct. 2011, at 19:40, Mrunal Gawade wrote:
>>>>> >
>>>>> > > Hi,
>>>>> > >
>>>>> > > Thank you for creating such a wonderful program.
>>>>> > >
>>>>> > > I am trying to use this program to display trace information from a
>>>>> database execution engines query plan. So I am planning to do some
>>>>> modifications to it in terms of combining the trace labels with graph labels
>>>>> to browse the graph manually (using newly added slider buttons).
>>>>> > >
>>>>> > > I am new to the zgrviewer and I am trying to load dot files through
>>>>> dot pipeline (experimental). However, it fails saying "An error occurred
>>>>> while parsing this DOT file" and then the nodes without edges are displayed.
>>>>> I tried debugging the code base. This is an exception that is thrown by
>>>>> DisplayDOT function, when dot file is tried to load.
>>>>> > >
>>>>> > > Could you please comment why I am facing such error? Is there some
>>>>> error in parsing. I am able to see the graph nodes listed in the "graph"
>>>>> variables "nodes" list.
>>>>> > >
>>>>> > >
>>>>> > > Thank you,
>>>>> > > Mrunal
>>>>> > >
>>>>> > >
>>>>> ------------------------------------------------------------------------------
>>>>> > > The demand for IT networking professionals continues to grow, and
>>>>> the
>>>>> > > demand for specialized networking skills is growing even more
>>>>> rapidly.
>>>>> > > Take a complimentary Learning@Cisco Self-Assessment and learn
>>>>> > > about Cisco certifications, training, and career opportunities.
>>>>> > >
>>>>> http://p.sf.net/sfu/cisco-dev2dev_______________________________________________
>>>>> > > zvtm-devel mailing list
>>>>> > > zvt...@li...
>>>>> > > https://lists.sourceforge.net/lists/listinfo/zvtm-devel
>>>>> >
>>>>> >
>>>>> >
>>>>> ------------------------------------------------------------------------------
>>>>> > The demand for IT networking professionals continues to grow, and the
>>>>> > demand for specialized networking skills is growing even more
>>>>> rapidly.
>>>>> > Take a complimentary Learning@Cisco Self-Assessment and learn
>>>>> > about Cisco certifications, training, and career opportunities.
>>>>> > http://p.sf.net/sfu/cisco-dev2dev
>>>>> > _______________________________________________
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>>>>> >
>>>>> <01.dot><01.pdf><01.trace>------------------------------------------------------------------------------
>>>>> > The demand for IT networking professionals continues to grow, and the
>>>>> > demand for specialized networking skills is growing even more
>>>>> rapidly.
>>>>> > Take a complimentary Learning@Cisco Self-Assessment and learn
>>>>> > about Cisco certifications, training, and career opportunities.
>>>>> >
>>>>> http://p.sf.net/sfu/cisco-dev2dev_______________________________________________
>>>>> > zvtm-devel mailing list
>>>>> > zvt...@li...
>>>>> > https://lists.sourceforge.net/lists/listinfo/zvtm-devel
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> The demand for IT networking professionals continues to grow, and the
>>>>> demand for specialized networking skills is growing even more rapidly.
>>>>> Take a complimentary Learning@Cisco Self-Assessment and learn
>>>>> about Cisco certifications, training, and career opportunities.
>>>>> http://p.sf.net/sfu/cisco-dev2dev
>>>>> _______________________________________________
>>>>> zvtm-devel mailing list
>>>>> zvt...@li...
>>>>> https://lists.sourceforge.net/lists/listinfo/zvtm-devel
>>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> The demand for IT networking professionals continues to grow, and the
>>>> demand for specialized networking skills is growing even more rapidly.
>>>> Take a complimentary Learning@Cisco Self-Assessment and learn
>>>> about Cisco certifications, training, and career opportunities.
>>>> http://p.sf.net/sfu/cisco-dev2dev
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> The demand for IT networking professionals continues to grow, and the
>>>> demand for specialized networking skills is growing even more rapidly.
>>>> Take a complimentary Learning@Cisco Self-Assessment and learn
>>>> about Cisco certifications, training, and career opportunities.
>>>> http://p.sf.net/sfu/cisco-dev2dev
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>>>>
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> The demand for IT networking professionals continues to grow, and the
>> demand for specialized networking skills is growing even more rapidly.
>> Take a complimentary Learning@Cisco Self-Assessment and learn
>> about Cisco certifications, training, and career opportunities.
>> http://p.sf.net/sfu/cisco-dev2dev
>>
>> _______________________________________________
>> zvtm-devel mailing list
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>>
>> ------------------------------------------------------------------------------
>> The demand for IT networking professionals continues to grow, and the
>> demand for specialized networking skills is growing even more rapidly.
>> Take a complimentary Learning@Cisco Self-Assessment and learn
>> about Cisco certifications, training, and career opportunities.
>> http://p.sf.net/sfu/cisco-dev2dev
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>