Changes between Initial Version and Version 1 of Ticket #5726, comment 1


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Timestamp:
05/08/24 10:40:09 (8 months ago)
Author:
mdavis

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  • Ticket #5726, comment 1

    initial v1  
    11This can be due to these things:
    22
    3 - (most likely) The results of overlay operations (such a difference) are subject to numerical rounding, which means that the results might not exactly match the input linework. This can cause spatial predicates to be inconsistent with expected results
     31. (most likely) The results of overlay operations (such a difference) are subject to numerical rounding, which means that the results might not exactly match the input linework. This can cause spatial predicates to be inconsistent with expected results
    44
    5 - (very rare) a bug in the overlay algorithm sometimes causes outputs to be very different from what is expected.  This would show up as a large difference in area from the expected value.
     52. (very rare) a bug in the overlay algorithm sometimes causes outputs to be very different from what is expected.  This would show up as a large difference in area from the expected value.
     6
     7The bottom line is that the results you are seeing are likely the unavoidable result of representing geometry using floating-point numbers, and thus are not a bug.