[vtkusers] How to insert points to construct a 3d object

[Melissa Goh]

I read from a text file. The xyz values are obtained from a 3d image in
ImageJ.

How do I vary the neighborhood size and sample spacing?

Melissa

On Tue, Mar 6, 2012 at 10:52 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:

> vtkSurfcaeReconstructionFilter docs say that the neighborhood size and
> sample spacing should be set if desired. Can you try varying those?
>
> Jothy
>
>
> On Tue, Mar 6, 2012 at 2:50 PM, Jothybasu Selvaraj <jothybasu at gmail.com>wrote:
>
>> How is your xyz calculated?
>>
>> Do you read it from afile or calculate manually?
>>
>> Jothy
>>
>> On Tue, Mar 6, 2012 at 2:45 PM, Melissa Goh <melissagoh27 at gmail.com>wrote:
>>
>>> Hi David,
>>>
>>> I have attached a screenshot of the 3d object. Below is my code snippets:
>>>
>>> *vtkPolyData strip = new vtkPolyData();
>>> vtkPoints points = new vtkPoints();
>>>
>>> for (int i=0; i<xyz.length; i++){
>>>      points.InsertNextPoint(xyz[i][0], xyz[i][1], xyz[i][2]);
>>> }
>>> strip.SetPoints(points);
>>>
>>> vtkSurfaceReconstructionFilter surface = new
>>> vtkSurfaceReconstructionFilter();
>>> surface.SetInput(strip);
>>> vtkContourFilter cf = new vtkContourFilter();
>>> cf.SetInputConnection(surface.GetOutputPort());
>>> cf.SetValue(0,0.0);
>>>
>>> vtkReverseSense reverse = new vtkReverseSense();
>>> reverse.SetInputConnection(cf.GetOutputPort());
>>> reverse.ReverseCellsOn();
>>> reverse.ReverseNormalsOn();
>>> reverse.Update();
>>>
>>> vtkPolyDataMapper map = new vtkPolyDataMapper();
>>> map.SetInput(reverse.GetOutput());
>>> map.ScalarVisibilityOff();
>>> *
>>> Appreciate your help! :)
>>>
>>> Thanks,
>>> Melissa
>>>
>>> On Tue, Mar 6, 2012 at 8:22 PM, David Doria <daviddoria at gmail.com>wrote:
>>>
>>>> On Mon, Mar 5, 2012 at 11:05 PM, Melissa Goh <melissagoh27 at gmail.com>
>>>> wrote:
>>>> > Hi David,
>>>> >
>>>> > I am using vtkPolyData to create a 3d nucleus surface based on the
>>>> set of
>>>> > data points. The structure doesn't seems right. I am not sure of how
>>>> to
>>>> > insert the points in correct order.
>>>> >
>>>> > Melissa
>>>>
>>>> You'll have to give us more information. *Why* does it not seem right?
>>>> What is wrong with the order you are using? Can you provide some
>>>> screenshots? Or the data? Or your code?
>>>>
>>>> David
>>>>
>>>
>>>
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>>
>>
>> --
>> Jothy
>>
>>
>
>
> --
> Jothy
>
>
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