ICEpdf
  1. ICEpdf
  2. PDF-729

Not a number (NaN) error when calculating function 2 result

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: 5.0.5
          • Fix Version/s: 5.0.6
          • Component/s: Core/Parsing
          • Labels:
            None
          • Environment:
            any

            Description

            The forum user posted a PDF file that contains two gradient painted shapes. Both gradients had a section of black toward the middle of the gradient. On closer inspection our type 2 function code was returning an NaN when calculating the three colour values from the 1 digit input.

            The NaN is being caused by Math.pow(-1.6, 1.13) which seem a bit strange to me.

              Activity

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              Patrick Corless created issue -
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              Patrick Corless added a comment -

              I've updated the Function_2.java code to avoid having a negative base value and the gradient now appears to paint correctly.

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              Patrick Corless added a comment - I've updated the Function_2.java code to avoid having a negative base value and the gradient now appears to paint correctly.
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #40438 Thu Mar 27 10:18:34 MDT 2014 patrick.corless PDF-729 fixed NaN return value when encountering a negative input.
              Files Changed
              Commit graph MODIFY /icepdf/branches/icepdf-5.0.1/icepdf/core/src/org/icepdf/core/pobjects/functions/Function_2.java
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              Patrick Corless added a comment -

              Did some regression testing and the fix appears to be valid.

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              Patrick Corless added a comment - Did some regression testing and the fix appears to be valid.
              Patrick Corless made changes -
              Field Original Value New Value
              Status Open [ 1 ] Resolved [ 5 ]
              Fix Version/s 5.0.6 [ 11381 ]
              Resolution Fixed [ 1 ]
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #40445 Thu Mar 27 12:26:59 MDT 2014 patrick.corless PDF-729 fixed NaN return value when encountering a negative input.
              Files Changed
              Commit graph MODIFY /icepdf/trunk/icepdf/core/src/org/icepdf/core/pobjects/functions/Function_2.java
              Patrick Corless made changes -
              Status Resolved [ 5 ] Closed [ 6 ]

                People

                • Assignee:
                  Patrick Corless
                  Reporter:
                  Patrick Corless
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                  Dates

                  • Created:
                    Updated:
                    Resolved: