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<DIV><FONT face=Verdana><FONT size=2>Hi, Patrick,</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2></FONT></FONT> </DIV>
<DIV><FONT face=Verdana><FONT size=2>There is a problem due to
TransformPhysicalPointToIndex function, which belongs to Bug#
738,</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>but it seems that this critial bug has not
been fixed.</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2></FONT></FONT> </DIV>
<DIV><FONT face=Verdana><FONT size=2>When I load
IGSTK\Sandbox-Release-8\Testing\Data\E000192,</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>press the left mouse button on the sagittal
view in FourViewsTrackingWithCT app continuously, </FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>then the index changes little bye one, when
the index of sagittal viewer was changed to 0, I press the</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>mouse button onto the sagittal image, it
says "Picked point outside image". I tracked this bug, </FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>and found that it is due to index round up
problem.</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2></FONT></FONT> </DIV>
<DIV><FONT face=Verdana><FONT size=2>For example, the origin is
-153.6640625,</FONT></FONT></DIV>
<DIV><FONT face=Verdana size=2>the spacing is 0.671875</FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2>the physical coordinate is
16.3203</FONT></FONT></DIV>
<DIV><FONT face=Verdana size=2>so the according index is </FONT></DIV>
<DIV>(16.3203+153.6640625)/0.671875 = 252.9999813953,</DIV>
<DIV>it was truncated to 252. </DIV>
<DIV> </DIV>
<DIV>Then resliceImage function will change the orthogonal image slice. </DIV>
<DIV> </DIV>
<DIV>I also found this behaviour will occur when certain DICOM dataset is
loaded. When I load other DICOM dataset,</DIV>
<DIV>the axial and coronal slice will have problem, but sagittal view does not
change when mouse pressed. It is because </DIV>
<DIV>that certain origin and spacing parameters trigger this problem.</DIV>
<DIV> </DIV>
<DIV>Thanks!</DIV>
<DIV> </DIV>
<DIV>Fucang</DIV></BODY></HTML>