Not sure if this is related but try setting the spacing and orientation after you allocate the image. <br><br>Cagatay <div><br><div class="gmail_quote">On Wed, Oct 24, 2012 at 3:06 PM, Wolfram Timm <span dir="ltr"><<a href="mailto:comail@mac.com" target="_blank">comail@mac.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I don't get the background of this problem:<br>
<br>
Inside a DLL I am trying to create a 3D ITK image of type unsigned short. This works (filewriter successful), when spacing is 1.0 for each dimension. Inside the DLL I get an Access Violation even preventing throwing the exception when choosing a different spacing like 0.2, 0.2, 2.0 (yes, awful anisotropy). This is independent of the use of ITKImportFilter or creating just an ITK image.<br>
<br>
Here's the relevant code (afaik):<br>
<br>
typedef unsigned short PixelType;<br>
typedef itk::Image< PixelType, 3 > ImageType;<br>
<br>
ImageType::Pointer img = ImageType::New();<br>
<br>
ImageType::SizeType size;<br>
size[0] = 512;<br>
size[1] = 512;<br>
size[2] = 86;<br>
<br>
ImageType::IndexType start;<br>
start.Fill(0);<br>
<br>
ImageType::RegionType region;<br>
region.SetIndex(start);<br>
region.SetSize(size);<br>
<br>
img->SetRegions(region);<br>
<br>
double origin[3];<br>
origin[0] = 0.0;<br>
origin[1] = 0.0;<br>
origin[2] = 0.0;<br>
img->SetOrigin(origin);<br>
<br>
ImportImageFilterType::SpacingType spacing;<br>
spacing[0] = 0.2;<br>
spacing[1] = 0.2;<br>
spacing[2] = 2.0;<br>
img->SetSpacing(spacing);<br>
<br>
try<br>
{<br>
log("img pre Allocate()");<br>
img->Allocate();<br>
log("img pos Allocate()");<br>
}<br>
catch( itk::ExceptionObject & exp )<br>
{<br>
log("Exception caught !");<br>
log((string)exp.GetDescription());<br>
}<br>
<br>
WriterType::Pointer writer = WriterType::New();<br>
<br>
writer->SetFileName("d:\\temp\\i.tif");<br>
<br>
writer->SetInput(img);<br>
<br>
try<br>
{<br>
writer->Update();<br>
}<br>
catch( itk::ExceptionObject & exp )<br>
{<br>
log("Exception caught !");<br>
log((string)exp.GetDescription());<br>
}<br>
<br>
<br>
Any help really is appreciated, since I don't get the problem here.<br>
<br>
Thanks.<br>
Wolfram<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><span style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Cemal Cagatay Bilgin</span><br style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
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