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Microstation Item Type - Expression Syntax Definitions to calculate Length, Width, Height for cells/elements

Stuart Travis
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Hello Everyone

I am trying to create Expression Syntax Definitions to calculate Length, Width, Height (XYZ) when attaching item types to existing cells/elements.  

So far ,XYZ values have been difficult to automatically define in item types.

https://communities.bentley.com/products/microstation/b/microstation_blog/posts/ec-expressions-in-item-types---new-in-microstation-connect-edition-update-12

The above link gives some handy information and a list of pdf syntax.  However I cannot see anything suitable to generate XYZ data.

For example RAW dgn data shows the below for a cell:

Here is an example expression for volume 

this.GetElement().GetDisplayValue("Volume")

Is it possible to do something similar with XZY values?  Or use the RAW data (Range Low) minus (Range High)?

Thanks

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  • 0 Offline

    one thing i noticed that. if the Range Low Z value is negative, its having some issues with this expression this.GetElement().RangeLow.Z doesnt automatically update when the element has been changed or shortened in length.

  • 0 Offline in reply to rold

    Hi,

    rold said:
    its having some issues with this expression this.GetElement().RangeLow.Z doesnt automatically update when the element has been changed or shortened in length.

    can you share an example?

    With regards,

      Jan

    Bentley Accredited Developer: iTwin Platform - Associate
    Labyrinth Technology  |  dev.notes()  |  cad.point

  • 0 Offline in reply to Jan Šlegr

    Hi Jan, attach is a screen recording. I just made a cylinder and item type to report rangeLowZ. but as you can see in the video it doesnt automatically update

Reply
  • 0 Offline in reply to Jan Šlegr

    Hi Jan, attach is a screen recording. I just made a cylinder and item type to report rangeLowZ. but as you can see in the video it doesnt automatically update

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