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<DIV><FONT face=Arial size=2>Dear vtkers:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I use the following code ot load and view a BMP
image. but It's too slow.</FONT></DIV>
<DIV><FONT face=Arial size=2>for a bmp image of 240*320 it takes more than 6
seconds.And the </FONT></DIV>
<DIV><FONT face=Arial size=2>interaction is also slow. what's the
reason?</FONT><FONT face=Arial size=2>it's the same with
vtkTIFFReader.</FONT></DIV>
<DIV><FONT face=Arial size=2>The following is the program:</FONT></DIV>
<DIV><FONT size=2> </DIV>
<DIV><FONT face=Arial>BOOL CImaDoc::OnOpenDocument(LPCTSTR lpszPathName)
</FONT></DIV>
<DIV><FONT face=Arial>{</FONT></DIV>
<DIV><FONT face=Arial>if
(!vtkMFCDocument::OnOpenDocument(lpszPathName))</FONT></DIV>
<DIV><FONT face=Arial>return FALSE;</FONT></DIV>
<DIV><FONT face=Arial>// TODO: Add your specialized creation code
here</FONT></DIV>
<DIV><FONT face=Arial>this->ImageReader = vtkBMPReader::New();</FONT></DIV>
<DIV><FONT face=Arial>this->Mapper =vtkDataSetMapper::New();</FONT></DIV>
<DIV><FONT face=Arial>this->Actor =vtkActor::New();</FONT></DIV>
<DIV><FONT face=Arial>this->Actor->SetMapper(Mapper);</FONT></DIV>
<DIV><FONT
face=Arial>this->ImageReader->SetFileName(lpszPathName);</FONT></DIV>
<DIV><FONT
face=Arial>this->Mapper->SetInput(this->ImageReader->GetOutput());</FONT></DIV>
<DIV><FONT face=Arial>this->Props->AddItem(this->Actor);</FONT></DIV>
<DIV><FONT face=Arial>this->Actor->VisibilityOn();</FONT></DIV>
<DIV><FONT face=Arial>return TRUE;</FONT></DIV>
<DIV><FONT face=Arial>}</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV><FONT face=Arial>
<DIV>regards,</DIV>
<DIV> </DIV>
<DIV>zj zhang</FONT></FONT></DIV></BODY></HTML>