Question

Extract Geometry Traits

  • 10 April 2013
  • 2 replies
  • 9 views
davideagle
Rank
Badge +14
I have a bunch of features that have Geometry Traits attached as a result of an upstream process I have carried out to find out if they are valid. I now want to manipulate those traits and I'm pretty confident that I need to use the GeometryPropertyExtractor. But no matter what I enter into the parameter 'Traits to Extract' I cannot get anything to be extracted. If I inspect the features I can see the traits but I'm not clear how to reference them so I can get at them... does anyone have any experinece with traits that they can share? Thanks!

2 replies

david_r
Rank
Userlevel 4
Hi Dave,

 

 

could you perhaps post the output of one of these features as it appears in a Logger?

 

 

David
mark2atsafe
Rank
Userlevel 4
Badge +25
As far as I know, the GeometryPropertyExtractor is the way to go here. I've just tried creating/extracting traits and it seems to work OK.

 

 

Some thoughts:

 

 

- You don't have a Geometry XQuery set do you?

 

- Is this an older workspace open in a newer FME? Can you replace the transformers to see if that helps?

 

- What does it look like saved as a mapping file? Mine is below. Does your's look significantly different?

 

 

Weak, I know. I think the best thing is to send the support team a copy of the data and see what we can find.

 

 

DEFAULT_MACRO GeometryPropertyExtractor_PARAMETER

 

 

INCLUDE [                                                              \\

 

   if { {No} == {Yes} } {                                              \\

 

      puts {MACRO GeometryPropertyExtractor_ACTION ACTION EXTRACT_TRAITS_PREFIXED}; \\

 

   } else {                                                            \\

 

      puts {MACRO GeometryPropertyExtractor_ACTION ACTION EXTRACT_TRAITS}; \\

 

   };                                                                  \\

 

   if { {EXTRACT_TRAITS} == {EXTRACT_GEOMNAME} } {                     \\

 

   } else {                                                            \\

 

      puts {MACRO GeometryPropertyExtractor_PARAMETER PARAMETER _count}; \\

 

   };                                                                  \\

 

]

 

 

FACTORY_DEF * GQueryFactory                                            \\

 

   FACTORY_NAME GeometryPropertyExtractor_GQuery                       \\

 

   INPUT  FEATURE_TYPE GeometryPropertySetter_SET                      \\

 

   $(GeometryPropertyExtractor_ACTION)                                 \\

 

   $(GeometryPropertyExtractor_PARAMETER)                              \\

 

   OUTPUT UNTOUCHED FEATURE_TYPE GeometryPropertyExtractor_UNTOUCHED   \\

 

   OUTPUT RESULT FEATURE_TYPE GeometryPropertyExtractor_EXTRACTED

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