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This sub surface was not in the same plane as its base surface.

asked 2023-04-25 06:22:19 -0500

budich's avatar

updated 2023-04-25 10:53:13 -0500

Hi,

Please help. I have a problem when making two windows that it says, "This subsurface was not in the same plane as its base surface" I attached the idf file "Nara Tipikal 3 U.idf" in this gdrive link https://drive.google.com/drive/folder...

the error

This sub surface is missing its base surface: 
A new zone object has been automatically created for this surface.
However it is still missing a base surface.
Error:  FenestrationSurface:Detailed, U_1K03
This sub surface is missing its base surface: 
A new zone object has been automatically created for this surface.
However it is still missing a base surface.
Warning:  FenestrationSurface:Detailed, U_1K04
This sub surface was not in the same plane as its base surface.
It has been automatically fixed.

Error:  FenestrationSurface:Detailed, U_1K04
This sub surface is not contained by its base surface.

thank you very much regards, Budijanto

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Comments

I feel that the window is not set on the desired surface. Or maybe the coordinates of the window are different from the surface

Masoud's avatar Masoud  ( 2023-04-25 14:52:29 -0500 )edit

Great Thank you you are correct

budich's avatar budich  ( 2023-04-26 03:27:55 -0500 )edit

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answered 2023-04-25 15:48:00 -0500

updated 2023-04-25 18:40:06 -0500

Both "U_1K03" and "U_1K04" have duplicates (i.e. 2x instances of each in the IDF).

In addition, subsurfaces must link an opaque (base) surface; those are missing in both "U_1K03" instances, and in one instance of "U_1K04". The other "U_1K04" instance does reference a base surface, "U_1D02":

FenestrationSurface:Detailed,
    U_1K04,  !- Name
    Window,  !- Surface Type
    Exterior Window,  !- Construction Name
    U_1D02,  !- Building Surface Name
    ,  !- Outside Boundary Condition Object
    ,  !- View Factor to Ground
    ,  !- Frame and Divider Name
    ,  !- Multiplier
    4,  !- Number of Vertices

Yet there are also 2x instances of "U_1D02" in the IDF: one facing outdoors, the other facing another surface, "1733D2".

I suspect you're after the latter: 2x matching interior walls. When matched interior surfaces reference each other this way, their coupled subsurfaces must also reference each other as outside boundary condition objects. I suspect the 4x subsurface instances were meant to represent 2x pairs of matching subsurfaces. I haven't looked into the vertices; nonetheless, try the following corrections:

  • single instance for each object
  • a unique name for each instance
  • ensure subsurfaces link base surfaces
  • ensure matching subsurfaces reference each other
  • finally ensure coupled sets of vertices match, and that they're in the correct order
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Comments

Great Thank you you are correct

budich's avatar budich  ( 2023-04-26 03:27:32 -0500 )edit

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Asked: 2023-04-25 06:22:19 -0500

Seen: 153 times

Last updated: Apr 26 '23