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Changes between Initial Version and Version 1 of Ticket #6701


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Timestamp:
09/08/11 08:25:46 (13 years ago)
Author:
jmoore
Comment:

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  • Ticket #6701 – Description

    initial v1  
    22 
    33From Alex: 
    4 {{{ 
    5 I did a lot of reading of the code in the process and noticed that the sequential flag was not set on the BioFormats ImageWriter. This means that each time a new plane is written to the TIFF file, BioFormats reads the entire file to locate the positions of all the current IFD entries (see method loci.formats.tiff.TiffSaver.writeImageIFD(...)). If the current plane being written is less than the total count of IFD entries then the correct IFD entry is extracted for use. 
    64 
    7 Since the planes are written using incremental plane numbers I do not think this condition will ever be met. Thus it is safe to set the sequential flag to true. 
    8  
    9 }}} 
     5 > I did a lot of reading of the code in the process and noticed that the sequential flag was not set on the BioFormats ImageWriter. This means that each time a new plane is written to the TIFF file, BioFormats reads the entire file to locate the positions of all the current IFD entries (see method loci.formats.tiff.TiffSaver.writeImageIFD(...)). If the current plane being written is less than the total count of IFD entries then the correct IFD entry is extracted for use. 
     6 > 
     7 > Since the planes are written using incremental plane numbers I do not think this condition will ever be met. Thus it is safe to set the sequential flag to true. 

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