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Re: [EnergyPlus_Support] geometry problem with alignment of window on none horizontal roof





Probably because you have 7 verticies for the roof and 4 for the window. Try splitting up the roof surface into several (4?) surfaces so you can simplify the geometry of the surface containing the window.

On 1/4/2012 5:42 AM, Jean marais wrote:
 

Hello Group,
I'm having trouble with a couple of window surfaces sitting on a very slightly none horizontal roof (please don't ask why it's not horizontal). The first time e+ ran, it threw an error that the difference between the base surface and the window surface was more than 180 deg. I reversed the verticies order, but now the difference seems even larger. Funnily looking at it in openstudio, I don't see any errors nearly this big.

Here's an example where I've already reversed the order:

BuildingSurface:Detailed,
118300_Roof_0_0_0, !- Name
Roof, !- Surface Type
1, !- Construction Name
51482D, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0, !- View Factor to Ground
7, !- Number of Vertices
-23.716795928400,-3.049668700700,4.850463841400, !- X,Y,Z ==> Vertex 1 {m}
-23.416829502300,-5.505177516300,4.850463838900, !- X,Y,Z ==> Vertex 2 {m}
-22.810640840000,-5.753296600100,4.850463839400, !- X,Y,Z ==> Vertex 3 {m}
-22.388041230000,-6.253733680100,4.850463839400, !- X,Y,Z ==> Vertex 4 {m}
-22.120806470000,-6.197311320100,4.850463839400, !- X,Y,Z ==> Vertex 5 {m}
-20.641571547600,-6.306840390000,4.850463837700, !- X,Y,Z ==> Vertex 6 {m}
-20.641571547600,-3.044599250000,4.850463837700; !- X,Y,Z ==> Vertex 7 {m}

! Window, 1,440m2

FenestrationSurface:Detailed,
118300_Roof_0_0_0_0_0_0_Win, !- Name
Window, !- Surface Type
1001, !- Construction Name
118300_Roof_0_0_0, !- Building Surface Name
, !- Outside Boundary Condition Object
0, !- View Factor to Ground
, !- Shading Control Name
, !- Frame and Divider Name
1, !- Multiplier
4, !- Number of Vertices
-22.584122814200,-3.577712414500,4.850463821025, !- X,Y,Z ==> Vertex 4 {m}
-22.584122814200,-4.777712414500,4.850463821025, !- X,Y,Z ==> Vertex 3 {m}
-21.384122814200,-4.777712414500,4.850463821025, !- X,Y,Z ==> Vertex 2 {m}
-21.384122814200,-3.577712414500,4.850463821025; !- X,Y,Z ==> Vertex 1 {m}
!REVERSE

GlobalGeometryRules,
UpperLeftCorner, !- Starting Vertex Position
Counterclockwise, !- Vertex Entry Direction
Absolute; !- Coordinate System

Building,
Untitled, !- Name
0.0, !- North Axis {deg}
Suburbs, !- Terrain
0.04, !- Loads Convergence Tolerance Value
0.4, !- Temperature Convergence Tolerance Value {deltaC}
FullExterior, !- Solar Distribution
25; !- Maximum Number of Warmup Days

Site:Location,
C4AFD6, !- Name
0.0, !- Latitude {deg}
0.0, !- Longitude {deg}
0.0, !- Time Zone {hr}
0.0; !- Elevation {m}

Zone,
51482D, !- Name
0.0, !- Direction of Relative North {deg}
0.0, !- X Origin {m}
0.0, !- Y Origin {m}
0.0, !- Z Origin {m}
, !- Type
1; !- Multiplier


-- 
Richard A. Raustad
Senior Research Engineer
Florida Solar Energy Center
University of Central Florida
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Phone:   (321) 638-1454
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