data loss in volume when reconstructing a anisotropic voxel

[baladastagiri14]

Hi all,

ConstantImageSourceType::Pointer outVol=ConstantImageSourceType::New(); ConstantImageSourceType::PointType origin_out; ConstantImageSourceType::SizeType size_out; ConstantImageSourceType::SpacingType spacing_out; size_out[0] = ctDIM1;// 512 size_out[1] = ctDIM3;//120 size_out[2] = ctDIM2;//512 spacing_out[0] = 0.4238; spacing_out[1] = 1; spacing_out[2] = 0.4238;

origin_out[0] = -0.5*(size_out[0]-1)*(spacing_out[0]);
origin_out[1] = -0.5*(size_out[1]-1)*(spacing_out[1]);
origin_out[2] = -0.5*(size_out[2]-1)*(spacing_out[2]);
outVol->SetOrigin(origin_out);
outVol->SetSpacing(spacing_out);
outVol->SetSize(size_out);
outVol->SetConstant(0);

When i tried to reconstruct a anisotropic voxel there is loss of data in the top & bottom portion of volume and the same doesnt happen if i try to reconstruct it with equal spacing out in all three direction

could you please help me out to figure out this issue

I have attached two images with same pixelspacing and variable pixelspacing for your reference,

[SimonRit]

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