How can I pass the CRC attributes as a published user parameter (e.g., $(CRC_ATTR))
The purpose is to automate the workspace, without having to re-enter the attributes manually in the CRCCalculator transformer.
FME Desktop 2014 SP3
Thanks,
Sami
Best Answer
Passing CRC attributes as a published parameter
+12- Contributor
Hi ,
Best answer by takashi
Hi Sami,
I don't think there is a way to pass a user parameter to the attribute list of the CRCCalculator. But you can use the FMEFunctionCaller (or Python / Tcl scripting) to call the @CRC function passing a user parameter as its argument.
e.g. assuming that $(CRC_ATTR) is comma separated attribute names:
-----
@CRC(ATTRIBUTES,$(CRC_ATTR))
See this page to learn more about the @CRC function.
FME Factory and Function Documentation (http://docs.safe.com/fme/html/FME_FactFunc/index.html)
Takashi
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- Best Answer
Hi Sami,
I don't think there is a way to pass a user parameter to the attribute list of the CRCCalculator. But you can use the FMEFunctionCaller (or Python / Tcl scripting) to call the @CRC function passing a user parameter as its argument.
e.g. assuming that $(CRC_ATTR) is comma separated attribute names:
-----
@CRC(ATTRIBUTES,$(CRC_ATTR))
See this page to learn more about the @CRC function.
FME Factory and Function Documentation (http://docs.safe.com/fme/html/FME_FactFunc/index.html)
Takashi
+12- Contributor
Thanks Takashi for the tip,
I referred to the documentation link that you provided..
FMEFunctionCaller has solved this issue for me!
+4- Contributor
Hi Sami,
I don't think there is a way to pass a user parameter to the attribute list of the CRCCalculator. But you can use the FMEFunctionCaller (or Python / Tcl scripting) to call the @CRC function passing a user parameter as its argument.
e.g. assuming that $(CRC_ATTR) is comma separated attribute names:
-----
@CRC(ATTRIBUTES,$(CRC_ATTR))
See this page to learn more about the @CRC function.
FME Factory and Function Documentation (http://docs.safe.com/fme/html/FME_FactFunc/index.html)
Takashi
Hi @takashi, how would I include the feature geometry in this function. Would I need to use the GeometryExtractor transformer first? Is this answer still relevant with FME 2018? I can't see any options to select "All Attributes" with the CRCCalculator transformer.
+4- Contributor
Hi @takashi, how would I include the feature geometry in this function. Would I need to use the GeometryExtractor transformer first? Is this answer still relevant with FME 2018? I can't see any options to select "All Attributes" with the CRCCalculator transformer.
I just discovered the answer... The @CRC function can be altered to accept GEOM as a parameter, or the ALL option can be used to calculate a CRC value on All attributes and geometry.