[vtkusers] vtkPoint

Aron Helser aron.helser at kitware.com
Fri May 4 13:16:46 EDT 2018


That's exactly what the Glyph filter is for - it uses a single instance of
the geometry, drawn at different points in space. Modern graphics cards can
make that much faster than drawing separate geometry.
-Aron

On Fri, May 4, 2018 at 11:06 AM, Sam Raby <rabysam28 at gmail.com> wrote:

> I have used small spheres and small cubes, but the issue is that they are
> heavy if I use thousands  of them - that is why I am trying to use a simple
> point which is much lighter.
>
> On Fri, May 4, 2018 at 6:34 AM, Angela Noecker <noeckera at gmail.com> wrote:
>
>> What do you want your points to look like?  I assign a small sphere to
>> the glyph.
>>
>> On Thu, May 3, 2018 at 6:00 PM, Sam Raby <rabysam28 at gmail.com> wrote:
>>
>>>
>>> Thanks for the feedback. Here is the problem statement: I want to
>>> visualize points but I want the points to become larger/smaller as I zoom
>>> in/out. I could add glyph to each point, but glyph also wants me to assign
>>> a source to it, and I end up assigning for example a small Cubes, but I
>>> need to visualize a point not a cube. Is there a way to enable a point
>>> so that zoom in and out can change the size of point? or any alternative
>>> approach?
>>>
>>> Thanks
>>> Sam
>>>
>>> On Sun, Apr 22, 2018 at 3:34 PM, Angela Noecker <noeckera at gmail.com>
>>> wrote:
>>>
>>>> I add a glyph.
>>>>
>>>> > On Apr 22, 2018, at 3:01 PM, Sam Raby <rabysam28 at gmail.com> wrote:
>>>> >
>>>> > Hi
>>>> > When we use vtkPoint or vtkPointSource, as we zoom in and out, the
>>>> size of points does not change. Is there a way to enable this so that zoom
>>>> in and out can change the size of point?
>>>> > Thanks
>>>> > S
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>>>
>>>
>>
>
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