[vtkusers] How to query actors visible in the render window

[Weiguang Guan]

Thanks, David. The new class is very useful for my application.

Weiguang

On Wed, 19 Sep 2007, David E DeMarle wrote:

> vtkAreaPicker
>
> On 9/19/07, Weiguang Guan <guanw at rhpcs.mcmaster.ca> wrote:
>>
>> Hello,
>>
>> Is there a way to determine which actors are visible in the render window
>> (those that are not clipped by the viewing frustum) ? Thanks.
>>
>> Weiguang
>>
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