reorient center to best fit of BBOX? 2004-05-07 - By Graham D Clark
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Any suggestion for how to reorient center of object to best BBOX fit?
Ie if an elongated cubes points are rotated, center remains, then its
frozen, getting the center orientation back so that the BBOX would be
the same as the elongated cubes? (preferabley with y pointing in longest
direction of mesh)
Ie2 if a cylinders center is moved away and reorinted, and frozen, a way
to return the center as close as possible to the orginal orientation?
To see my issue quickly:
-get cube,
-put display in BBOX
-Rotate it
-freeze it
Now try to get the center orientation back via script.
I can do it manually with ref edges but I have many many objects with
centers way off and edgeloops commands are not yet exposed in any
version of XSI.
Perhaps first I need to move center to average vertices, and perhaps use
edge looping no corners, get top 20 % longest continuos edge loops,
collecting the end points and using the average vector as y orientation,
or perhaps reorienting a BBOX scaling in to mesh surface by checking for
points outside the BBOX, and reorinting until best fit...
Anyways these ideas seem kind of lame. Anyone have a suggestion? Is
there an easier way using basic XSI commands?
Thank you, Graham
-- ---- ---- ---- ---- ---- --
http://www.grahamdclark.com
2nd hand TD
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<P><FONT SIZE=2 FACE="Arial">Any suggestion for how to reorient center of
object to best BBOX fit?</FONT>
<BR><FONT SIZE=2 FACE="Arial">Ie if an elongated cubes points are rotated,
center remains, then its frozen, getting the center orientation back so that
the BBOX would be the same as the elongated cubes? (preferabley with y pointing
in longest direction of mesh)</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Ie2 if a cylinders center is moved away and
reorinted, and frozen, a way to return the center as close as possible to the
orginal orientation?</FONT></P>
<P><FONT SIZE=2 FACE="Arial">To see my issue quickly:</FONT>
<BR><FONT SIZE=2 FACE="Arial">-get cube,</FONT>
<BR><FONT SIZE=2 FACE="Arial">-put display in BBOX</FONT>
<BR><FONT SIZE=2 FACE="Arial">-Rotate it</FONT>
<BR><FONT SIZE=2 FACE="Arial">-freeze it</FONT>
<BR><FONT SIZE=2 FACE="Arial">Now try to get the center orientation back via
script.</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">I can do it manually with ref edges but I have
many many objects with centers way off and edgeloops commands are not yet
exposed in any version of XSI.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">Perhaps first I need to move center to average
vertices, and perhaps use edge looping no corners, get top 20 % longest
continuos edge loops, collecting the end points and using the average vector as
y orientation, or perhaps reorienting a BBOX scaling in to mesh surface by
checking for points outside the BBOX, and reorinting until best fit... </FONT><
/P>
<P><FONT SIZE=2 FACE="Arial">Anyways these ideas seem kind of lame. Anyone have
a suggestion? Is there an easier way using basic XSI commands?</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Thank you, Graham</FONT>
<BR><FONT FACE="Times New Roman">-- ---- ---- ---- ---- ---- --</FONT>
<BR><A HREF="http://www.grahamdclark.com"><U><FONT COLOR="#0000FF" FACE="Times
New Roman">http://www.grahamdclark.com</FONT></U></A>
<BR><FONT FACE="Times New Roman">2nd hand TD</FONT>
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