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FME Desktop 2020: The “clipper” tool fails to generate the expected result,

  • December 20, 2021
  • 5 replies
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jamal
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FME Desktop 2020: The “clipper” tool fails to generate the expected result,

 

In the screenshot below, I wanted to clip the blue color from the red color. As there is not intersection between these two colors, the result should be the red color itself. However, the result not exactly the red color.

 

What could be the issue here?

 

Clip_1382 

Clip_1383 

Clip_1384 

Clip_1385 

 

 

 

 

 

 

 

 

 

 

 

 

 

The data and the work bench are attached

Best answer by caracadrian

There seems to be a "bug" in the feature geometry.

If you insert a GeometryRefiner (I inserted it after GeometryCoercer) FME should give you the correct result.Refiner

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    5 replies

    caracadrian
    Contributor
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    • caracadrianContributor
    • Contributor
    • 571 replies
    • Best Answer
    • December 21, 2021

    There seems to be a "bug" in the feature geometry.

    If you insert a GeometryRefiner (I inserted it after GeometryCoercer) FME should give you the correct result.Refiner

    jamal
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    • jamal
    • Author
    • 342 replies
    • December 21, 2021

    Thank you caracadrian for the help.

     

    Does the “geometryrefiner” tool change the original geometry?

     

     

    Clip_1398

    caracadrian
    Contributor
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    • caracadrianContributor
    • Contributor
    • 571 replies
    • December 21, 2021

    Thank you caracadrian for the help.

     

    Does the “geometryrefiner” tool change the original geometry?

     

     

    Clip_1398

    This is a trick question 😀

    It does but it doesn't...

    If you are thinking at vertices, lines, arcs and so on, it doesn't.

    If you are thinking at path and curves, it does.

    I think the help explains it best:

    • Any homogeneous IFMEAggregate will become a multi (IFMEMultiCurve, IFMEMultiArea, IFMEMultiPoint, or IFMEMultiText).
    • Any IFMEAggregate or multi with only one member will be replaced by its single part.
    • Any IFMEDonut with no holes will become an IFMEPolygon or IFMEEllipse.
    • Any IFMEPath with only one segment will be replaced by that segment.
    • Consecutive IFMELine segments within an IFMEPath will be combined.

    https://docs.safe.com/fme/2021.2/html/FME_Desktop_Documentation/FME_Transformers/Transformers/geometryrefiner.htm

    jamal
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    • jamal
    • Author
    • 342 replies
    • December 21, 2021

    Thank you for the input. This is very useful

    jamal
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    • jamal
    • Author
    • 342 replies
    • March 15, 2022

    I found out that the “geometryrefiner” tool does change the geometry and appears not to bring the solution we are looking for.

     

    I’m not sure if this bug is going to be fixed soon

     

    Could be there a tool that can IDENTIFY the cause of this issue such that it can be fixed at the level of the source of data (AutoCAD)?

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