[Paraview-developers] Glyph Filter Uniform Spatial Distribution

[Christophe Bourcier]

Hi,

I would have guessed that there is some threshold before Uniform
Spatial Distribution actually do the masking to distribute the glyphs.
Below this threshold, use every points to compute the glyphs. Above,
use a uniform spatial distribution. I thought that Maximum number of
sample points was doing that, but it is not. A test could be added to
check if Number Of Points <= Maximum number of sample points before
doing the masking. What do you think?

Christophe

2016-06-23 17:01 GMT+02:00 Mathieu Westphal <mathieu.westphal at kitware.com>:
> That's great ! I never used these button nor think of this usage for it,
> thanks !
> I agree with you about the "too many" problem.
>
> Mathieu Westphal
>
> On Thu, Jun 23, 2016 at 4:54 PM, Utkarsh Ayachit
> <utkarsh.ayachit at kitware.com> wrote:
>>
>> You could also suggest that they can just change the default:
>>
>> https://blog.kitware.com/new-in-paraview-easy-saving-of-custom-defaults-in-paraview/
>>
>> Both AllPoints & Every N'th Point  can cause generation of "too many"
>> glyphs for really large datasets causing worse usability issues.
>>
>> On Thu, Jun 23, 2016 at 9:33 AM, Mathieu Westphal
>> <mathieu.westphal at kitware.com> wrote:
>> > Hi
>> >
>> > I have a bunch of user angry at the default value of Uniform Spatial
>> > Distribution for the Glyph Filter, because with small datasets it
>> > doesn't
>> > generate anything and new users thinks the filter did not work.
>> >
>> > I would say that i got distracted by it at first as well, and since the
>> > settings is far down the panel , it is not easy to find at first use,
>> > and
>> > for a toolbar enabled filter it's not good.
>> >
>> > That being said, the easy fix is to change the default value AllPoints
>> > or
>> > Every N'th Point which at least generate one glyph, what do you think
>> > about
>> > that ?
>> >
>> > Another fix would be to ensure Uniform Spatial Distribution generate at
>> > least one glyph, but i'm afraid it would be incorrect algorithm wise ?
>> >
>> > Any thougths on that ?
>> >
>> > Mathieu Westphal
>> >
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>
>
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