Hello to everybody, the search couldn’t solve my problem, so maybe somebody can help me here. what i want to do: I have 3 lists: List1: Is a calculated parameter - made out of shared parameters --> final unit --> m3/h List2: Is a calculated parameter - made out of shared parameters --> final u…

You are probably looking for a conversion function, if so, you could try the Convert Between Units node: http://dictionary.dynamobim.com/#/Core/Units/Action/Convert Between Units

hey @Yna_Db thank you for your answere. I already tried this node, but it is not made for MEP (HVAC) units… so i can’t use it for my problem.

Did you take a look at previous threads? https://forum.dynamobim.com/search?q=MEP%20unit%20conversion

yes - i have red them… but i could not solve my problem.

with which node, do you get out your values out of revit ? and how do you make calculations if the values come with “units” ?

Quick answer: [image] Remove characters of items Here is another OOTB way, if the number alwas is last and has mm as unit [image]

okay, i found an workaround. When i write die “calculated” value in an shared parameter – then it is converted with the MEPover (Set.ParameterAsProjectUnits) node to “m3/h”. So i can take the converted shared parameter - and use it for my further calculations/comparison in my python script.

@Yna_Db The Problem is not the “unit-text-figures” which are added to the numbers. The Problem is, that Revit does make an difference to the value, when i multiplay the “area” (unit = m2) with an figure (without an unit) when i write the result back to revit in an shared parameter --> which has t…

I would rather let a MEP specialist talk about that (I have also specified the title of this thread): [image] Revit to Excel - MEP Parameters Revit Hello Jonathan, The problems pertaining to the MEP parameters is a question of finding out the right conversions for your un…

I don’t really understand your question. You want Dynamo to know which unit is used for certain values and convert accordingly? Sounds like something you have to do manually yourself.

MEP units handling / conversions / list usage

Developers

Yna_Db October 9, 2017, 12:41pm 7

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MEP units handling / conversions / list usage

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