Dimension/Leader arrowheads will not display

When I place a dimension or leader the arrowhead(s) will show until I accept the placement THEN the arrowhead(s) disappear. I thought that maybe the arrowheads might just be very small but when I dropped the dimension and select elements only the lines were found. The arrowhead is a cell. I changed it to a different cell, something weird just to see if it would work and it did work. I placed the cell into the drawing with no problem too. I even copied a dimension from  another drawing, imported the dim style but nothing seems to work.

Does anybody have an idea on why this is happening,

Thanks

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  • Do you need to use the cell for your terminators? Under the dimension settings dialog go to the Geometry Tab. Under terminators set the Arrowhead to Filled and under the Symbols drop down just set arrow to Default. You will get a solid arrowhead similar to your cell. THe only difference would be that the wide end of the arrowhead would be straight across rather than V shaped. I looked at your file and the cell. I thought maybe the cell being created as a Point Cell rather than a Graphic Cell was causing the issue. I changed it to a Graphic Cell with no change. Using the the Default Filled arrowhead works fine.

    By the way, I opened another file and set the dimension style to use your cell and everything works fine. That tells me it is file specific and the file you are working in has some sort of corruption. I would start a new file as I suggested prviously and not beat myself up trying to fix your current file.

    Microstation CONNECT 10.17.00.209

    ORD CONNECT 2021 R1 10.10.1.3

    Microstation v8i SS 10 08.11.09.919

    Power InRoads v8i 08.11.09.615

    ORD CONNECT 2021 R1 10.10.1.3

    ProjectWise 10.0.3.453

  • Thank you mwlong, I would like to say that normally I would have done your suggestion about not using the cell. Unfortunately, we are using this cell from our DOT and it is a part of the standards. I will suggest that we create a new file.
    I'm happy to know that the things I have tried are some of the things that others would have recommended. I'm also glad that it seems to be an isolated problem.
    Thanks again to everyone that gave this their attention.
  • Hello,
    Apologies, I only noticed the file after posting!
    There appears to be some issues with the file which were not resolved with compressing the file and running the VerifyDGN MDL, which are steps recommended in the article:
    communities.bentley.com/.../recovering-corrupt-dgn-and-dwg-files

    I would also recommend merging the file into a fresh seed file.

    Regards
    Derval Canny.



  • I also Compressed the design file & ran Verifydgn prior to trying a new file. I found it a little odd the Verifydgn returned no errors. I did not expect Verifydgn to repair any part of the file since I ave never had any file repaired using this "tool". Users need Bentley to supply a better tool for this.

    Microstation CONNECT 10.17.00.209

    ORD CONNECT 2021 R1 10.10.1.3

    Microstation v8i SS 10 08.11.09.919

    Power InRoads v8i 08.11.09.615

    ORD CONNECT 2021 R1 10.10.1.3

    ProjectWise 10.0.3.453

  • Hi,

    I don't think there is a real issue with your file, it is just that some settings need to be corrected.

    In your active dimension settings, you have selected an Open Arrowhead, but also you have specified to use the Symbol/Cell:  AHT to be used as the arrowhead (was that intended, or did you want an open arrowhead in the end?).


    Upon placement of the -associated- dimension, that cell is placed in your dgn file as a shared cell:

    My guess is that something went wrong upon placing the dimension/cell in the dgn file:
    When a cell from a library is placed in another file, MicroStation first compares the master units of both files to determine a scaling factor (just like with reference files being attached). For that comparison it uses the unit definitions that are specified in the file: Units.def in the folder: ..\Workspace\System\Data\, folder location in CONNECT Edition is: ...\MicroStation\Default\Data (specified in MS_CUSTOMUNITDEF).

    In your case, the master units in the file: dimensionprob.dgn had the label: FT, in the cell library, that label was specified as: '
    Since MicroStation did find the label: FT, but did not find the label: '  , it could not find determine a proper conversion scale and placed a definition of the cell in your dgn file.

    To resolve, you will first have to correct the master unit label definition in your cell library and set the label for the cell/model: AHT to: FT as well (File>Save Settings to keep the changes).

    Once you have done that, the easiest way to replace the already existing AHT shared cell definition in your dgn file is to:
    1 - specify a different Symbol/Cell name in your active Dimension settings
    2 - select the command: Change dimension
    3 - identify and accept the dimension that does not show the arrowhead
    4 - open your attached cell library (Element>Cells)
    5 - make sure the option: Use Shared Cells has a Check mark
    6 - verify that the cell: AHT displays as: Shrd in the column: Where
    7 - select that -Shrd- cell: AHT
    8 - click the delete button in the cell library dialog and accept to delete that cell
    9 - specify the Symbol/Cell name: AHT, in your active Dimension settings
    10 - repeat steps 2 and 3

    Instead of setting parameters/attributes for your dimensions over and over again, I recommend to define and save a dimension style for your dimensions.
    Those styles you can maintain in a dgnlib and use/import in your other files. Please see the various wiki articles that are available for this purpose:

    https://communities.bentley.com/products/microstation/w/microstation__wiki/18599.apply-dimension-style-to-existing-dimensions-which-have-no-dimension-style
    http://communities.bentley.com/products/microstation/w/microstation__wiki/microstation-dimensions 

    HTH

    Regards,

    Henk