private vtkUnsignedShortArray BuildVolumeImageData()
{
ushort[] volumeData = new ushort[this.SizeInVoxels];
int imageIndex = 0;
if (IsDataUnsigned())
{
foreach (IImageGraphicProvider slice in _displaySet.PresentationImages)
{
AddUnsignedSliceToVolume(volumeData, slice, imageIndex);
imageIndex++;
}
}
else
{
FindMinimumPixelValue();
foreach (IImageGraphicProvider slice in _displaySet.PresentationImages)
{
AddSignedSliceToVolume(volumeData, slice, imageIndex);
imageIndex++;
}
}
vtkUnsignedShortArray vtkVolumeData = new vtkUnsignedShortArray();
vtkVolumeData.SetArray(volumeData, new VtkIdType(volumeData.Length), 1);
return vtkVolumeData;
}
public static vtkUnsignedShortArray ConvertToVtkUnsignedShortArray(ushort[] ushortArray)
{
vtkUnsignedShortArray vtkUnsignedShortArray = new vtkUnsignedShortArray();
vtkUnsignedShortArray.SetArray(ushortArray, (VtkIdType) ushortArray.Length, 1);
return vtkUnsignedShortArray;
}
private static vtkImageData CreateVtkVolume(Volume volume)
{
var vtkVolume = new vtkImageData();
vtkVolume.RegisterVtkErrorEvents();
vtkVolume.SetDimensions(volume.ArrayDimensions.Width, volume.ArrayDimensions.Height, volume.ArrayDimensions.Depth);
vtkVolume.SetOrigin(0, 0, 0);
vtkVolume.SetSpacing(volume.VoxelSpacing.X, volume.VoxelSpacing.Y, volume.VoxelSpacing.Z);
if (volume.BitsPerVoxel == 16)
{
if (!volume.Signed)
{
using (var array = new vtkUnsignedShortArray())
{
array.SetArray((ushort[]) volume.Array, (VtkIdType) volume.ArrayLength, 1);
vtkVolume.SetScalarTypeToUnsignedShort();
vtkVolume.GetPointData().SetScalars(array);
}
}
else
{
using (var array = new vtkShortArray())
{
array.SetArray((short[]) volume.Array, (VtkIdType) volume.ArrayLength, 1);
vtkVolume.SetScalarTypeToShort();
vtkVolume.GetPointData().SetScalars(array);
}
}
}
else if (volume.BitsPerVoxel == 8)
{
if (!volume.Signed)
{
using (var array = new vtkUnsignedCharArray())
{
array.SetArray((byte[]) volume.Array, (VtkIdType) volume.ArrayLength, 1);
vtkVolume.SetScalarTypeToUnsignedChar();
vtkVolume.GetPointData().SetScalars(array);
}
}
else
{
using (var array = new vtkSignedCharArray())
{
array.SetArray((sbyte[]) volume.Array, (VtkIdType) volume.ArrayLength, 1);
vtkVolume.SetScalarTypeToSignedChar();
vtkVolume.GetPointData().SetScalars(array);
}
}
}
else
{
throw new NotSupportedException("Unsupported volume scalar type.");
}
// This call is necessary to ensure vtkImageData data's info is correct (e.g. updates WholeExtent values)
vtkVolume.UpdateInformation();
return vtkVolume;
}