<div>Hello there?</div> <div> </div> <div>I thought extent means spacing multiply by dimension, but then I doubt it since from my vtkImageData, I get the spacing using GetSpacing() and it gives:</div> <div>spacing[0] = 2</div> <div>spacing[0] = 2</div> <div>spacing[0] = 3.125</div> <div> </div> <div>and GetDimensions() gives:</div> <div>dimension[0] = 128</div> <div>dimension[1] = 128</div> <div>dimension[2] = 94</div> <div> </div> <div>but then, GetExtent() gives:</div> <div>extent[0]=0</div> <div>extent[1]=127</div> <div>extent[2]=0</div> <div>extent[3]=127</div> <div>extent[4]=0</div> <div>extent[5]=93</div> <div>means extent in x direction = 128, extent in y direction = 128, </div> <div>and extent in x direction = 94.</div> <div> </div> <div>And my other questions are:</div> <div>What is the difference between UpdateExtent, wholeExtent, and Extent of vtkImageData?</div> <div> </div> <div>Thx beforehand.</div>
<div> </div> <div>Best regards,</div> <div>.Tanya.</div><p>
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