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[EnergyPlus_Support] Re: shadowing calc errors



What is an "IDF geometry viewer" .....?  Sketchup w/ new plugin? 
DesignBuilder? (I am unfamiliar with the term.)


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "coolshadow10a" <david@...>
wrote:
>
> Note that this error usually occurs when there are overlapping or
> duplicate shading surfaces.  No matter how many iterations you allow,
> overlapping shading surfaces shade each other infinitely (I would
> think).  You need to check your model carefully for repeat geometry
> with different surface names or for overlapping shading surfaces.  You
> will need a IDF geometry viewer to do this, or compare vertices in a
diff.
> 
> rds3
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "bish.dj61" <bish.dj@>
> wrote:
> >
> > OK, I've looked at the results of adding the diagnostic statement - 
> > great to remove warnings, but the shading doesn't work. Any help 
> > appreciated!
> > 
> > 
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Danny Bishop" 
> > <bish.dj@> wrote:
> > >
> > > Hi All
> > > I have some errors that I can't figure out what they mean. I did as 
> > it
> > > suggested and added the diagnostics statement, but I am not really 
> > sure what
> > > it is doing.
> > > 
> > > ******** Too many vertices [>=18] in shadow overlap errors 
> > occurring...
> > >    ************* These occur throughout the year and may occur 
> > several times
> > > for the same surfaces. You may be able to reduce them by adding
> > > DIAGNOSTICS,DoNotMirrorDetachedShading;
> > >    *************
> > >    ** Warning ** Too many vertices [>=18] in a shadow overlap
> > >    **   ~~~   ** Overlapping figure=Mir-OBJ:0169, Surface Class=
> > [Detached
> > > Shading:Building]
> > >    **   ~~~   **   This error occurred 1 times.
> > >    **   ~~~   ** Figure being Overlapped=Mir-OBJ:0201, Surface
> > > Class=[Detached Shading:Building]
> > >    *************
> > > 
> > > AND
> > > 
> > > ******** Too many figures [>=15000] in shadow overlap errors 
> > occurring...
> > >    ************* These occur throughout the year and may occur 
> > several times
> > > for the same surfaces. You may be able to reduce them by adding
> > > DIAGNOSTICS,DoNotMirrorDetachedShading;
> > >    *************
> > >    ** Warning ** Too many figures [>=15000] in a shadow overlap
> > >    **   ~~~   ** Overlapping figure=OBJ:0217, Surface Class=
> > [Detached
> > > Shading:Building]
> > >    **   ~~~   **   This error occurred 5 times.
> > >    **   ~~~   ** Figure being Overlapped=Mir-OBJ:0081, Surface
> > > Class=[Detached Shading:Building]
> > >    **   ~~~   ** Figure being Overlapped=OBJ:0024, Surface Class=
> > [Wall]
> > >    **   ~~~   ** Figure being Overlapped=OBJ:0306, Surface Class=
> > [Wall]
> > >    *************
> > > 
> > > Cheers/Danny
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> > >
> >
>



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