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<DIV><FONT face=Arial size=2>Hi, guys:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have some suggestions for IGSTK.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>*creating FLTK UIs for controlling transfer
function and level window</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Because most of image-guided surgery application
may need UIs for transfer function and level window, a lot of redundant
efforts of application developers could be reduced if IGSTK provides UIs. Level
window UI may be integrated into View class or not.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>IGSTK is dependent on FLTK so it's a very good
place to put common UI classes.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Maybe, you guys already planned to create those.. I
don't know.</FONT></DIV>
<DIV><FONT face=Arial size=2><BR>*3D annotation should be in front of the
object<BR> : applying 3D transform (object and camera) -> use vtk 2D
text objects to show annotation. (scaling may be done depending on
Z-coordinate)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I think 3D annotations might become behind
objects.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It might be irritating to rotate and pan
cameras to find necessary 3D annotations.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>So, I suggest to use 2D text objects after
transforming.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If vtk's annotation 3D widgets support or behave
like that, we don't need to worry.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>Hee-Su</FONT></DIV>
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