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<div class="moz-cite-prefix">On 21.05.2014 04:38, David E DeMarle
wrote:<br>
</div>
<blockquote
cite="mid:CANjZAi9_6DUsHsCw4wdyjXn9t7evHj2y+WzPa0L-CAGTzy76sQ@mail.gmail.com"
type="cite"><br>
<br>
On Tuesday, May 20, 2014, Ahmet Doğan <<a
moz-do-not-send="true" href="mailto:isimtic@gmail.com">isimtic@gmail.com</a>>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
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<div bgcolor="#FFFFFF" text="#000000">
<div>frustum behaves like box clip doesn't it?</div>
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<div>There are differences, but yes very similar.</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0
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<div> I just need to extract cells by user view or like xy xz
yz axis. like taking picture I don't need behind of dataset
how can it be done? not possible with vtk? </div>
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<div>I'ld love to be proven wrong but I don't think so, not in all
cases. It boils down to occlusion culling.</div>
<div><br>
</div>
Zooming lessens the pixel resolution problem in scan conversion or
ray casting, but isn't perfect.
<div><br>
<div>Extract surface into normal generation into frustum dotted
with view vector and cull the non negative results is close
but it will get some corner cases wrong too. It isn't
resolution dependent at least.</div>
<div><br>
</div>
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</blockquote>
what is that exactly because I need it just take a picture of an
object from one side to put it 2d drawing that way ,there wont be
edge. is there any example how can i do what you mean in vtk?<br>
<blockquote
cite="mid:CANjZAi9_6DUsHsCw4wdyjXn9t7evHj2y+WzPa0L-CAGTzy76sQ@mail.gmail.com"
type="cite">
<div>
<div>I'ld like to hear about any other solutions out there since
the question comes up every once in a while.</div>
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<div> <br>
On 21.05.2014 03:54, David E DeMarle wrote:<span
class="Apple-style-span" style=""> </span></div>
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<blockquote type="cite">Not much. It is a limitation of the
screen space algorithm whch can pick at most one cell per
pixel.
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</div>
<div>Frustum selection is an object space algorithm and
doesn't have the same limitation, but it can not cull
occluded cells.<br>
<div>
<div><br>
On Tuesday, May 20, 2014, Ahmet Doğan <<a
moz-do-not-send="true"
href="javascript:_e(%7B%7D,'cvml','isimtic@gmail.com');"
target="_blank">isimtic@gmail.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
On 21.05.2014 03:21, Ahmet Doğan wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex"> On 21.05.2014 03:12,
Ahmet Doğan wrote:<br>
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex"> with
vtkHardwareSelector cells are changing on
zooming How can I disable it.<br>
<br>
Please check the image I added<br>
<br>
thank you<br>
<br>
<br>
On 20.05.2014 21:18, Bill Lorensen wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex"> It has been
replaced by vtkHardwareSelector<br>
<br>
<br>
On Tue, May 20, 2014 at 2:01 PM, Ahmet Doğan
<<a moz-do-not-send="true">isimtic@gmail.com</a>>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex"> hi,<br>
<br>
What's happened vtkVisibleCellSelector in
vtk 6 and up. I cant see any<br>
information on migrate page<br>
<br>
Kind regards.<br>
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<br>
-- <br>
David E DeMarle<br>
Kitware, Inc.<br>
R&D Engineer<br>
21 Corporate Drive<br>
Clifton Park, NY 12065-8662<br>
Phone: 518-881-4909<br>
</blockquote>
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<br>
-- <br>
David E DeMarle<br>
Kitware, Inc.<br>
R&D Engineer<br>
21 Corporate Drive<br>
Clifton Park, NY 12065-8662<br>
Phone: 518-881-4909<br>
</blockquote>
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