Re: [EnergyPlus_Support] Coordinate systems

[Linda Lawrie <linda@xxxxxxxxxx>]

At 01:28 PM 5/18/2006, aboyemeplus wrote:

>1) In a relative coordinate system, are the coordinates of surface &
>subsurface vertices entered relative to the BUILDING ORIGIN or
>applicable ZONE ORIGIN ?

No Building Origin is ever entered.  Ergo, relative coordinates are 
relative to the Zone origin, if input.  Relative do also use both 
Building and North Axes.  (ref: IORef page 128 /pdf164)


>2) Is the North axis shown on the DXF file True or Building North?

The arrow on my DXF outputs are annotated "True North".


>3) By default, the Blast Translator converts models into the abosulte
>coordinate system. Is there a way of keeping the relative coordinate
>system when converting BLAST models?

No.


Linda

EnergyPlus WebSite: http://www.energyplus.gov
Owner: EnergyPlus_Support list
Member: EnergyPlus Development Team



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