[vtkusers] Mesh Lines

[Bhanu Hariharan]

Hi Lubos,
Just a quick question. When I put the 2 actors into an assembly, do I still
need to set SetResolveCoincidentTopologyToPolygonOffset() for the 2 mappers?

Or Is there a similar function for the assembly as a whole?

Thanks,
Bhanu


On Tue, May 1, 2012 at 12:41 PM, Bhanu Hariharan <bhanu at petrotel.com> wrote:

> I tried the vtkActors for both but didnt change the behavior. Could you
> tell me how to group them into an assembly. Thanks so much for your help so
> far.
>
>
> On Tue, May 1, 2012 at 12:02 PM, Lubos Brieda <lbrieda at yahoo.com> wrote:
>
>> What happens if you use two regular actors (not LOD for the mesh), but
>> set one to wireframe representation, and possibly also group them into an
>> assembly? And make sure to make the lines thicker.
>>
>> (I just finished working on a VTK-based GUI and that's the approach we
>> took and it worked fine.)
>>
>>   ------------------------------
>> *From:* Bhanu Hariharan <bhanu at petrotel.com>
>> *To:* Lubos Brieda <lbrieda at yahoo.com>
>> *Cc:* "vtkusers at vtk.org" <vtkusers at vtk.org>
>> *Sent:* Tuesday, May 1, 2012 11:39 AM
>>
>> *Subject:* Re: [vtkusers] Mesh Lines
>>
>> Thanks Lubos for your reply. I tried increasing thickness but the
>> behavior remains the same as before.
>>
>> I also want to add that the wireframe looks broken only at times at
>> places when I am rotating and also depends on the zoom level. If I dont
>> zoom at all it is fine but when I start zooming, the lines look broken
>> randomly.
>>
>>
>> On Tue, May 1, 2012 at 9:32 AM, Lubos Brieda <lbrieda at yahoo.com> wrote:
>>
>> Also try to make them thicker (under actor->GetProperty()). Not sure if
>> this is related but I've found that superimposing a wireframe actor with
>> the default line thickness over a solid one makes the lines come and go
>> unless you increase their thickness.
>>
>>    ------------------------------
>> *From:* Bhanu Hariharan <bhanu at petrotel.com>
>> *To:* Jothybasu Selvaraj <jothybasu at gmail.com>
>> *Cc:* vtkusers at vtk.org
>> *Sent:* Tuesday, May 1, 2012 10:25 AM
>> *Subject:* Re: [vtkusers] Mesh Lines
>>
>> Thanks for your reply. I do have SetAmbient(1) set in my code but that
>> doesn't help.
>> Any more ideas will be greatly appreciated.
>>
>> Thanks,
>> Bhanu
>>
>>
>> On Tue, May 1, 2012 at 4:10 AM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:
>>
>> May be you need to manipulate the lighting of the actors.
>>
>> Can you try SetAmbient(1)?
>>
>> Jothy
>>
>> On Mon, Apr 30, 2012 at 10:03 PM, Bhanu Hariharan <bhanu at petrotel.com>wrote:
>>
>> Hi,
>>
>> I am using VtkUnstructuredGrid to render a 3D grid where each cube/block
>> is marked by 8 world coordinates. Each grid block has a color
>> associated with it and I am using a vtkLookUpTable for this.
>>
>> I also have defined grid lines/mesh to show on top of this to mark the
>> grid blocks. For this I use vtkLODActor.
>>
>> The problem is when I rotate the grid, the grid lines appear broken
>> depending on how I rotate and the level of zoom.
>>
>>
>> Does anyone have a clue why this could be happening..Any help with this
>> would be greatly appreciated.
>>
>> Thanks,
>> Bhanu
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>>
>>
>> --
>> Jothy
>>
>>
>>
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>>
>> Visit other Kitware open-source projects at
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