I am probably 'shouting into the wind' with this but I would be pleased if someone can suggest a way forward.
I am aware, I think, that you cannot have a calculated value in an area tag, since you cannot add calculated parameter values to an Area, only shared parameters. So I want to tag an area, which I am calling a 'Development (Building) Footprint' Area, with some information based on the projected cost of building a square meter of floor. In my case I wish to create a number of 'dwelling' footprints and tag them to show the likely cost of building them. I am aware that the base information of cost per square meter I will have to manually enter but I would like this to be 'type driven' so I do not have to write it in for each dwelling footprint area type. I also have an instance value for the number of floors (assuming all floors have the same footprint) but I want Revit to multiply the cost per meter by the number of floors and the finally the available area to give the projected build cost per dwelling. The final issue of the area is also an issue in that my footprint includes the thickness of the external walls so I also need to subtract the area occupied by the external walls using a thickness factor maybe?
All suggestions much appreciated, thank you.
You can combine different parameters in formulas in the schedule to obtain these results. But, at the end, you won't be able to display a calculated value in the area tag anyway. Therefore, as an alternative., you could show an integer (as shared parameter), indicating a type of area. Then, in the schedule that integer can be used in formulas, combined with calculated values, to obtain different resuls, using IF staments, such as if (type of area = 1, ...) . This will allow you to make these calculations and see the results in the schedule view, while the tag will show just the integer that refers each type of area to the other information in the schedule.
OK. Thanks for the update.
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