sis-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Martin Desruisseaux (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SIS-407) OutOfMemoryError when reading Sentinel 1 image with GeoTIFF reader
Date Tue, 06 Mar 2018 15:35:00 GMT

     [ https://issues.apache.org/jira/browse/SIS-407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Martin Desruisseaux resolved SIS-407.
-------------------------------------
    Resolution: Fixed

> OutOfMemoryError when reading Sentinel 1 image with GeoTIFF reader
> ------------------------------------------------------------------
>
>                 Key: SIS-407
>                 URL: https://issues.apache.org/jira/browse/SIS-407
>             Project: Spatial Information Systems
>          Issue Type: Bug
>          Components: Storage
>    Affects Versions: 0.8
>            Reporter: Martin Desruisseaux
>            Assignee: Martin Desruisseaux
>            Priority: Major
>             Fix For: 1.0
>
>
> When opening a Sentinel 1 GeoTIFF image, the call to {{DataStore.getMetadata()}} cause
the JVM to attempt to allocate about one gigabyte of memory. This is not caused by the image
size, but rather by a mathematical error. In the {{LocalizationGridBuilder}} class, private
method {{infer}} computes the greatest common divisor of _X_ and _Y_ translations from the
grid origin. Sentinel 1 image have control points spaced by 1320 pixels on the _X_ axis, except
the very last point which is only 1302 pixels after the previous one. This cause {{LocalizationGridBuilder}}
to find a much smaller common divisor than expected (6 instead of 1320), which cause it to
attempt to create a localization grid much larger than it should be.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Mime
View raw message