What is the camera's clipping range ? It might be that the clipping range when viewing a single slice with the direction of projection along its normal, ends up with a size of 0 along the z direction. <br><br>This is consistent with the fact that you have no issues viewing it at an angle, when the clipping range will be non-zero.<br>
<br>If this is indeed the case, you'd want to disable the InteractorStyle's "AutoAdjustCameraClippingRange" ivar and set the range yourself to half the pixel spacing along z, on either side of the slice in question.<br>
<br>This is how vtkImageViewer2.cxx handles this. <br><br><br><div class="gmail_quote">On Wed, Aug 12, 2009 at 2:58 PM, Doug Hoppes <span dir="ltr"><<a href="mailto:dhoppes@mbfbioscience.com">dhoppes@mbfbioscience.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Hi all,</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> I’ve got a strange problem and not sure
what is causing it. I have loaded an image stack (10 images) into a VTK
window. When the user uses the mouse wheel, I move through the image plane by
setting all of the images to be invisible, but the current plane.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> The weird situation is that, if I am looking at
the image stack head-on (the camera is pointing directly at the top of the
image plane), when I scroll through the plane, some of the images do not show.
If I move my mouse slightly, the image shows immediately. If I am placing the camera
askew to the image stack (so that you see the stack at an angle), everything
works fine.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> I tried calling the InteractorStyle->Render()
after setting the image plane to be visible, but, that doesn’t seem to
work.</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Doug</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">----------------------------------------------------------------------</span></font></p>
<p><font size="3" face="Times New Roman"><span style="font-size: 12pt;">Doug Hoppes</span></font> <a href="mailto:dhoppes@mbfbioscience.com" target="_blank">dhoppes@mbfbioscience.com</a></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Senior Software Engineer</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">MBF Bioscience (Microbrightfield, Inc.)</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">+1.802.288.9290 ext: 119</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"><a href="http://www.mbfbioscience.com" target="_blank">www.mbfbioscience.com</a></span></font><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"></span></font></p>
<p><font size="3" face="Times New Roman"><span style="font-size: 12pt;"> </span></font></p>
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