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<DIV>Thank you for the answer.</DIV>
<DIV>Can you point me to appropriate class/field name in osg</DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=xenon@alphapixel.com>Chris
Hanson</A> </DIV>
<DIV><B>Sent:</B> Wednesday, September 18, 2019 22:28</DIV>
<DIV><B>To:</B> <A title=osg-users@lists.openscenegraph.org>OpenSceneGraph
Users</A> </DIV>
<DIV><B>Subject:</B> Re: [osg-users] How to select OSGB tiles for current
zoom?</DIV></DIV></DIV>
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<DIV dir=ltr>Those max screen diameter values are using by projecting the
diameter of the bounding sphere (usually encoded in any Group-derived nodes)
through the modelview/projection matrix to assess its on-screen extent in
pixels. If it is above or below the threshold defined by the max screen diameter
field, that triggers a change in the selection of children.</DIV>
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<DIV class=gmail_quote>
<DIV class=gmail_attr dir=ltr>On Wed, Sep 18, 2019 at 12:55 PM
<<A>shlem@netvision.net.il</A>> wrote:<BR></DIV>
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<DIV>Hi</DIV>
<DIV>I wrote my own renderer based on DirectX.</DIV>
<DIV>Everything goes nice except one issue.</DIV>
<DIV>How I decide to show the some tile/node or its children regarding to
current zoom level?</DIV>
<DIV>Does each tile/none have some hints? (like 3mx files for example, that
have MaxScreenDiameter field)</DIV>
<DIV>Thanks in advance</DIV>
<DIV>Leonid
Shikhmatov</DIV></DIV></DIV></DIV></DIV>_______________________________________________<BR>osg-users
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<DIV> </DIV>
<DIV> </DIV>-- <BR>
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<DIV style="TEXT-ALIGN: center">Chris 'Xenon' Hanson, omo sanza lettere.
Xenon@AlphaPixel.com <A href="http://www.alphapixel.com/"
target=_blank>http://www.alphapixel.com/</A></DIV>
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