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No parameter "Elevation" to be found

  • September 18, 2023
  • 3 replies
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sparks
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Hi, I'm following the FME Desktop Basic training, now doing exercise "Flood Risk Project" (under "Use Conditional Values"). As it is clear that I'm newbie to FME, so maybe this is a stupid question: where can I find the parameter "Elevation"? See pics attached here. This parameter is not listed in the AttributeManager, nor in other Read items. The FME workspace can be found here. Maybe I overlooked something?

FME exercise Flood Risk ProjectFME exercise Flood Risk Project - AttributeManager

Best answer by samatsafe

Hello @sparks​. Thanks for getting in touch. I can help you with this question.

I think I can see the problem. You are correct that the AttributeManager in your workspace (based on the screenshot) does not have access to an attribute called Elevation. The reason is that the instructions specify to place the AttributeManager after the AttributeRenamer. In your workspace, it is placed before the AttributeRenamer.

If you open the AttributeRenamer, you'll see it renames a less readable attribute, _band{0}.value, to Elevation. So, if you move the AttributeManager after the AttributeRenamer, you should have access to this renamed attribute. Please give that a try and let me know if it works.

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samatsafe
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  • September 18, 2023

Hello @sparks​. Thanks for getting in touch. I can help you with this question.

I think I can see the problem. You are correct that the AttributeManager in your workspace (based on the screenshot) does not have access to an attribute called Elevation. The reason is that the instructions specify to place the AttributeManager after the AttributeRenamer. In your workspace, it is placed before the AttributeRenamer.

If you open the AttributeRenamer, you'll see it renames a less readable attribute, _band{0}.value, to Elevation. So, if you move the AttributeManager after the AttributeRenamer, you should have access to this renamed attribute. Please give that a try and let me know if it works.


sparks
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  • September 19, 2023

That did the trick. I overlooked the AttributeRenamer completely. I feel myself stupid... Thanks for your help!


samatsafe
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  • September 19, 2023
sparks wrote:

That did the trick. I overlooked the AttributeRenamer completely. I feel myself stupid... Thanks for your help!

@sparks​, you're welcome. An easy detail to miss. Please let me know if you have any more questions.


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