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List:       openjdk-2d-dev
Subject:    [OpenJDK 2D-Dev] strange behaviour with Area.substract
From:       philip.race () oracle ! com (Phil Race)
Date:       2012-03-19 16:34:30
Message-ID: 4F676016.20107 () oracle ! com
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Hi,

You probably should start off on the developer forums with these sort
of user questions. This list isn't such a forum. Its for cooperation on
the implementation of Java2D in OpenJDK.

A more appropriate post to this list would be referring to the lines
of JDK internal source code you believe are at fault and proposing
a solution.

-phil.


On 3/19/2012 12:50 AM, Geronimo Ma. Hernandez wrote:
> Hello,
>
> I realized a strange behavior setting up a compound shape. I reduced my app to
> a small test-case, which I added. I also added a picture to visualize what
> happens.
> The jar is executable and I tested it with jdk 1.6.0_30 and jdk 1.7.0_03
>
> The lines of interest are from method reCalcShape() of class FailedShape
> In this method a GeneralPath is assembled and a part of a circle should get
> subtracted from the GeneralPath.
>
> I added a boolean "avoidFailure" to switch between strange behavior and normal
> operation.
>
> The difference between both test-cases is the point, *when* the circle is
> created.
>
> In my code, there's no transformation, but it looks like whether changing the
> coordinate of a Point creates a transformation. This is not desired, so I'd
> like to know, whether the strange behavior is some lack of understanding or
> whether it might be a bug.
>
>
> kind regards
>
> Gero


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