<DIV><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">I used the method <FONT size=3><FONT color=#000000>SetDisplayExtent(ext [0], ext [1], ext [2], ext [3], z, z) as you said,it did worked! but there still have a problem,</FONT></FONT></SPAN></DIV>
<DIV><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><FONT color=#000000 size=3>if the z in the method more than 10, the vtkimageactor can't show the picture</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><FONT color=#000000 size=3>,this is so strange,did any met it?</FONT></SPAN></DIV>
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<DIV> yours </DIV>
<DIV> roy</DIV>
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<DIV id=menu_sender><B>发件人:</B> "Marcelino Rodriguez Cancio"<marcelinorc@uclv.edu.cu>;</DIV>
<DIV><B>发送时间:</B> 2011年12月27日(星期二) 凌晨1:16</DIV>
<DIV><B>收件人:</B> "455535440"<455535440@qq.com>; <WBR></DIV>
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<DIV><B>主题:</B> RE: [vtkusers] vtkimageactor's SetZSlice</DIV></DIV>
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<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">You must not get the Extent From the Actor->DisplayExtent but from the vtkImageData->GetWholeExtent() method instead.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">Like this:<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>void SetZSlice(int z) <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>{<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">vtkImageData * img = jpgreader-></SPAN><SPAN lang=EN-US> </SPAN><A><SPAN lang=EN-US>GetOutputDataObject</SPAN></A><SPAN lang=EN-US>(0)</SPAN><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>double * ext = </SPAN><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">img->GetWholeExtent();</SPAN><SPAN lang=EN-US><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>this->SetDisplayExtent(ext [0], ext [1], ext [2], ext [3], z, z);<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US>}<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">Cheers<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d">Marcelino<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN lang=EN-US style="FONT-SIZE: 11pt; COLOR: #1f497d"><o:p> </o:p></SPAN></P>
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<P class=MsoNormal><B><SPAN lang=ES style="FONT-SIZE: 10pt">De:</SPAN></B><SPAN lang=ES style="FONT-SIZE: 10pt"> vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org] <B>En nombre de </B>455535440<BR><B>Enviado el:</B> domingo, 25 de diciembre de 2011 10:30 a.m.<BR><B>Para:</B> vtkusers<BR><B>Asunto:</B> [vtkusers] vtkimageactor's SetZSlice<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
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<P class=MsoNormal>merry christmas everybody.<o:p></o:p></P></DIV>
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<P class=MsoNormal>I met a problem of vtkimageactor,I used jpegreader to read 12 pictures ,then used vtkimageactor to show it,one of these jpegs was rendered.then i wanted to show another pictures ,So I called SetZSlice but it didn't work. I watch the souce of the method like below:<o:p></o:p></P></DIV>
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<P class=MsoNormal>void SetZSlice(int z) <o:p></o:p></P></DIV>
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<P class=MsoNormal>{this->SetDisplayExtent(<BR> this->DisplayExtent[0], this->DisplayExtent[1],<BR> this->DisplayExtent[2], this->DisplayExtent[3], z, z);}<o:p></o:p></P></DIV>
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<P class=MsoNormal>then I debug the program,the vtkimageactor's DisplayExtent is an array of 6 int ,valus -1,0,0,0,0,0, this is strange .Then I watch the vtkImageData which vtkimageactoe setinput,there is an arry named extent in it values 0 383 0 383 0 11, I think this means the picture data is saved,but why the method didn't work?<o:p></o:p></P></DIV>
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<P class=MsoNormal>I google this problem and find some people met the same problem,but there is no solution. Anyone can help us?<o:p></o:p></P></DIV>
<P class=MsoNormal><o:p> </o:p></P>
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<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><SPAN style="FONT-SIZE: 7.5pt; COLOR: gray">- XIII Simposio Internacional sobre Pensamiento Latinoamericano, del 26 al 27 de junio de 2012. Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba. http://www.uclv.edu.cu/13simp-pensamiento-latinoamericano<BR>-Universidad Central "Marta Abreu" de Las Villas. http://www.uclv.edu.cu<BR>-Participe en Universidad 2012, del 13 al 17 de febrero de 2012. Habana.Cuba. http://www.congresouniversidad.cu<BR>-Consulte la enciclopedia colaborativa cubana. http://www.ecured.cu/<BR><BR></SPAN><o:p></o:p></P></DIV><BR>
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<FONT face=Arial color=gray size=1>- XIII Simposio Internacional sobre Pensamiento Latinoamericano, del 26 al 27 de junio de 2012. Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba. http://www.uclv.edu.cu/13simp-pensamiento-latinoamericano<BR>-Universidad Central "Marta Abreu" de Las Villas. http://www.uclv.edu.cu<BR>-Participe en Universidad 2012, del 13 al 17 de febrero de 2012. Habana.Cuba. http://www.congresouniversidad.cu<BR>-Consulte la enciclopedia colaborativa cubana. http://www.ecured.cu/<BR><BR><BR></FONT></DIV></TINCLUDETAIL></DIV>