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Hi Sebastian,

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<div class="">you are correct. This API was modified between 5.0.x and 5.1.x as part of the</div>

<div class="">changes to support units in the model.</div>

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<div class="">On 5.0.x, getPixelsPhysicalSizeX() was returning an PrimitiveType object</div>

<div class="">which was unwrapped via getValue().</div>

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<div class=""><a href="http://downloads.openmicroscopy.org/latest/bio-formats5.0/api/ome/xml/meta/MetadataRetrieve.html#getPixelsPhysicalSizeX(int)" class="">http://downloads.openmicroscopy.org/latest/bio-formats5.0/api/ome/xml/meta/MetadataRetrieve.html#getPixelsPhysicalSizeX(int)</a></div>

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<div class=""><a href="http://downloads.openmicroscopy.org/latest/bio-formats5.0/api/ome/xml/model/primitives/PositiveFloat.html" class="">http://downloads.openmicroscopy.org/latest/bio-formats5.0/api/ome/xml/model/primitives/PositiveFloat.html</a></div>

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<div class="">On 5.1.x, the same method now returns a Length object, i.e a combination of a</div>

<div class="">value and a length unit.</div>

<div class=""><a href="http://downloads.openmicroscopy.org/latest/bio-formats5.1/api/ome/xml/meta/MetadataRetrieve.html#getPixelsPhysicalSizeX(int)" class="">http://downloads.openmicroscopy.org/latest/bio-formats5.1/api/ome/xml/meta/MetadataRetrieve.html#getPixelsPhysicalSizeX(int)</a></div>

<div class=""><a href="http://downloads.openmicroscopy.org/latest/bio-formats5.1/api/ome/units/quantity/Length.html" class="">http://downloads.openmicroscopy.org/latest/bio-formats5.1/api/ome/units/quantity/Length.html</a></div>

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<div class="">Other examples showing how to retrieve the unit or how to retrieve the length value</div>

<div class="">in a specific unit are given in:</div>

<div class=""><a href="https://www.openmicroscopy.org/site/support/bio-formats5.1/developers/matlab-dev.html#ome-metadata" class="">https://www.openmicroscopy.org/site/support/bio-formats5.1/developers/matlab-dev.html#ome-metadata</a></div>

<div class="">These are MATLAB examples but the same semantics should be portable to python-bioformats.</div>

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<div class="">Best,</div>

<div class="">Sebastien</div>

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<div class="">On 2 May 2015, at 11:04, Sebastian Rhode <<a href="mailto:sebrhode@gmail.com" class="">sebrhode@gmail.com</a>> wrote:</div>

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<div class="">Hi,</div>

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<div class="">I am using the BioFormats package 5.1.1 from python (via python-bioformats) and noticed, that my old code does not work any more.</div>

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<div class="">To get the scaling I used before:</div>

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<div class=""><b class="">getPixelsPhysicalSizeX(0).getValue().floatValue()</b></div>

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<div class="">but this seems to be now:</div>

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<div class=""><b class="">getPixelsPhysicalSizeX(0).value().floatValue()</b><br class="">

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<div class="">Is this correct and why was it changed? I am just curious? Or is the a issue of the python-bioformats wrapper?</div>

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<div class="">Cheers,</div>

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<div class="">Sebastian</div>

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