Mvparts that don’t wipeout in elevation or section view

[g-eaux]

Hi everyone,

Only few of my mvparts were transparent in 2d plan or section view

I‘ve found out that it was related to the presence or not of a region in 2d blocks for top, bottom, face block 2d representation.

But looking threads about this subject, i’m surprise to see it can be seen:

• As a bug when there is no region (2004) https://forums.autodesk.com/t5/autocad-mep-forum/mvpart-solidity/m-p/958664
• As a bug when there is a region (2009) https://forums.autodesk.com/t5/autocad-mep-forum/mep2010-mvpart-display/td-p/2461335/highlight/true

What was real intention of developer: Region presence was expected or not ?

Thanks,

Gérald

[Martin_Langolf]

Hi @g-eaux,

It seems that you refer to regions (an pure AutoCAD feature), but the indicated links are discussing unexpected behaviour in MvParts, whereas the screenshot you provided is indicating valves.

Hence the question, could you please be more precise on what MvParts you are referring to and what the issue is with the top or side views of those MvParts? Additionally, could you please advise which MEP release you are using and provide a sample file for analyses?

Just as a side note, the display of MvParts (or MEP equipment) appears to work as expected, when the display of "2 Lines" is enabled in the Display Configuration Manager. Can you confirm this?

Cheers,

Martin

[g-eaux]

Hello Martin,

thanks for your reply,

what i want is that block based mvparts wipeout back mep componement when drawing 2d section, using "2d" and "plan" display in my elevation style for mvpart

i confirm that my parts wipeout as expected in my 2d section when using "2d line screened" display in my elevation style for mvpart

just a problem, i lose my  layer based color :

here are 2 examples of displaying the same part, with the same elevation style:

With region is the 2d block:

The part wipeout back componements

Witeout region in the 2d block:

sorry that the back component are in the same color, but we can see there is no wipeout

Why do i use 2d and plan style for mvparts ?

because they display light, just silhouette, and that what my customers like

what i want to know is: regions presence in 2d representation block was considered by Autodesk,

or this presence or not is only dependant of the 3d -> 2d generation process.

subsidiary question:

what is the best elevation style representation to have mvpart silhouette, whit wipeout, for both block  based mvparts and parametric mvparts ?

Thanks

Gérald

[Martin_Langolf]

Hi @g-eaux,

Please excuse the delay in getting back to you.

Just to get a better understanding of how the blocks are build up and what we can do to achieve the required results, could you please upload a sample drawing (in .DWG) that we can test on our end.

Cheers,

Martin

[Martin_Langolf]

Hi @g-eaux,

I would like to followup on this tread and the sample file (in DWG).

Could you please upload a drawing that we can analyse?

Cheers,

Martin

[g-eaux]

hi Martin,

i'd wish to respond you quickly, but i've fixed all my mvpart's block definition to contain region on all their surface.

so i need to build a new block based mvpart, and hope that it will have only partial region ...

the samples i've send you are pdf based.

i'l try to find some sample in my dwg backups

thanks

Gérald

[Martin_Langolf]

Hi @g-eaux,

I am glad to hear you were able to find a possible workaround and amending your MvParts can achieve the desired results.

Based on the PDF Screenshots it is hard to tell, what the root cause could be. From what I can see you should be able to achieve similar results, using a hidden display configuration, when creating a 2D section. But without the ability to analyse a sample file this is only a assumption.

Hence the question, are you OK with the workaround you found? - If yes, please tell our community in more details what exactly you did to achieve the desired results and mark your post as a solution.

Should this not be the case, I will wait for a sample drawing, in order to test it.

Cheers,

Martin

[g-eaux · Accepted solution]

hello Martin,

here is a dwg sample, containing :

• 2 parts: one with region in its definition, other not
• 2 elevations styles: default ugly one and 2d line based smart style, but not hiding back parts

My first answer was bad, I didn’t remember thes my parts was redefined in my drawing: using 2d line screened doesn’t fix the problem of wipeout : I only lose the “bylayer” color …

For me, I’ve a solution is to redfine my 2d block with region else to simple polyline.

But it’s boring, so I’d prefer to find a solution without region

regards, Gerald

[Martin_Langolf]

Hi @g-eaux

Please excuse the delay.

I got one of our MEP Experts to check the file you provided and received the following feedback that should help to achieve the wished results.

Make sure that the view blocks, needed by the Display Set used for the 2D section, all exist. Insert them and verify that they have the desired appearance. Create something new, using those MvParts. The angle of the existing parts may display as 90.0000, but that doesn’t mean it really is. Even 90.0000000001 will use the Model rep. By making a new configuration, you can be sure that they are truly orthogonal.

Please test if these tips can help to generate a 2D section with hidden MvParts in the background.

Hope this helps.

Cheers,

Martin

---

@Anonymous wrote:

hello Martin,

here is a dwg sample, containing :

• 2 parts: one with region in its definition, other not
• 2 elevations styles: default ugly one and 2d line based smart style, but not hiding back parts

My first answer was bad, I didn’t remember thes my parts was redefined in my drawing: using 2d line screened doesn’t fix the problem of wipeout : I only lose the “bylayer” color …

For me, I’ve a solution is to redfine my 2d block with region else to simple polyline.

But it’s boring, so I’d prefer to find a solution without region

regards, Gerald

---

[g-eaux]

Hello Martin,

thanks for your reply,i was no longer waiting for it.

I've checked what you suggest (may i say that your specialist should do it himself, by far i sent the drawing ?)

and i will respond myself to my question ...

- default elevation style provided by Autodesk displays uggly mvparts, even if the part is strictly orthogonal.

- to have à smart silhouette, you need to create your own 2d/plan based style,

but to whipeout other object behind, you need to change all your 2d representation block to fill them with a region.

regards

Gérald

[Martin_Langolf]

Hi @g-eaux,

I'm glad to hear you were able to find a suitable workaround to achieve the wished results and display the MvParts in the desired presentation.

If you wish to submit this as an improvement request, you may do so using this >>link<<

Please mark your answer as an accepted solution, if it answers your question.

Cheers,

Martin

[Martin_Langolf]

Hi @g-eaux

I would like to follow up on this post.

Can you please let me know if the provided information could be helpful and if your own workaround works for you.

If this is the case, please accept your post an an accepted solution.

Cheers,

Martin