Portions of lines not displaying in ortho drawings

[bsaunders]

I am currently using AutoCAD Plant 2015 and am having some issues with portions of certain lines not appearing in my drawings and I'm not sure what's causing it.  The picture below should serve as an example.  Any help anybody could give would be very helpful.

[martinTstewart_Adsk]

For the community to help in troubleshooting this, answering the following questions may help:

• Is the Plant 3D 2015 extension 1 installed? Service Pack 2?
• How was the drawing/image created? Are we looking at a 3D Ortho projection with annotations added –all done in Plant 3D or ….?
• What are the parts that are missing lines? Custom? If out-of-the-box, what spec/catalog?
• Is the source drawing entirely made in Plant 3D or were other programs used? (i.e. Revit, Inventor, etc.)
• Is this happening on a lot of components and drawings, or just this one?
• Do other users get the same results on their computer?

[bsaunders]

Sure thing:

• While I can't seem to find anything that directly says whether or not I have extension 1 and service pack 2, I highly doubt that I have them.
• This image is from an ortho drawing from a model created completely in Plant 3D.
• The parts that are missing lines in this particular drawing are 8" 90 Deg Weld Elbows, though it has affected other parts, especially threaded fittings (like elbows, bushings, and tees).  These parts are custom parts (in that I opened Spec Editor and made them myself), but they were created using Spec Editor's built in models (Plant 3D Parametric Grahics).
• The source drawing is created entirely in Plant 3D.
• It has happened on a several different drawings that I've made over several different projects
• In my company, I'm the only CAD user so I wouldn't know if it would affect other users.

[martinTstewart_Adsk]

Here are some things to try. I recommend testing after each step.

1. Extension 1 is available as a ‘product enhancement’ for subscription customers at subscription.autodesk.com
2. After installing Ext 1, add Service Pack 2  (SP2 can also be installed without Extension 1, but if you do want Ext 1, apply Ext 1 first).
3. Purge your local data cache. With P3D and any Autodesk programs closed, go to Run and browse for the utility PnPLocalDataCachePurger.exe (Typical location: C:\Program Files\Autodesk\AutoCAD 2015\PLNT3D\PnPLocalDataCachePurger.exe)
4. Delete the files in your graphics cache. In Windows 7, for English, the folder is located at: C:\Users\<username>\AppData\Local\Autodesk\AutoCAD Plant 3D 2015\R20.0\enu\GraphicsCache Delete the content in this folder. (You may wish to place the existing cache in a backup folder) Restart Plant 3D and see if that fixes it.
5. Confirm you have current graphics card driver installed for your video card.

Let us know how it goes.

If my reply post was helpful, please give a "Kudos" or mark the "Accept as Solution" button below (or both).

[PeterQuinn]

Is this using the Ortho feature, or just doing a hide in model space?

If it's just doing a hide, then manipulating the view settings may help. Try turning on true silhouette edges.

[bsaunders]

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1. Extension 1 is available as a ‘product enhancement’ for subscription customers at subscription.autodesk.com
2. After installing Ext 1, add Service Pack 2  (SP2 can also be installed without Extension 1, but if you do want Ext 1, apply Ext 1 first).
3. Purge your local data cache. With P3D and any Autodesk programs closed, go to Run and browse for the utility PnPLocalDataCachePurger.exe (Typical location: C:\Program Files\Autodesk\AutoCAD 2015\PLNT3D\PnPLocalDataCachePurger.exe)
4. Delete the files in your graphics cache. In Windows 7, for English, the folder is located at: C:\Users\<username>\AppData\Local\Autodesk\AutoCAD Plant 3D 2015\R20.0\enu\GraphicsCache Delete the content in this folder. (You may wish to place the existing cache in a backup folder) Restart Plant 3D and see if that fixes it.
5. Confirm you have current graphics card driver installed for your video card.

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I now have Extension 1 and Service Pack 2 installed, I've purged my local data cache, deleted the files in my graphics cache, and updated the driver for my graphics card, but my problem persists

Mr. Quinn,

My model space seems fine.  I only experience this problem in views when making Ortho drawings, and even then, it only happens occasionally.  How do I access the "true silhouette edges" setting?

[EricNyh · Accepted solution]

This happens to me as well, P3D 2014 Extension 2.  I'd say 99% of the time it is because the pipe has a slight skew/slope to it.  You might need to go out 4 decimal places.

[bsaunders]

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@EricNyh wrote:

This happens to me as well, P3D 2014 Extension 2.  I'd say 99% of the time it is because the pipe has a slight skew/slope to it.  You might need to go out 4 decimal places.

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Wow!  That did it.  I don't know how you found that out, but it looks like that solved my problem

Thank you.

[darrelldixon]

You mean set units to 4 decimal places so you can confirm the slight skew?

Thanks.

[kschu1]

We're experiencing this issue with elbows as well.  So where do you set the units?   

Our project is in architectural not in decimal so does this make a difference?  

[EricNyh]

AutoCAD units, so use the UNITS command.  This is just to verify things aren't skewed.

Your issue looks to be a different issue.  Have you tried deleting the elbows and inserting new ones?