[arriscad] database format

[Gary Thill]

       Fortunately, Roger astutely pointed out my dyslexia with regard 
to my email explanation below.
       As a result, kindly reverse all references to "source" and 
"target" if your head hasn't already exploded.
   
Gary Thill wrote:
>
>     As Roger mentioned, I believe you meant to say "...has changed the 
> /input /units from feet to inches".
>     Output display values can be changed at any time. /Input/ values 
> (database units) can only be changed
>     in an empty database.
>
>     Layers which are copied from any target drawing to a different 
> source drawing will automatically inherit
>     the database units (i.e. feet or inches) of the /source 
> /drawing...regardless of the drawings units set in the /target /
>     drawing.
>
>     The only exception is if the /source / drawing is completely 
> empty, such as database noname (noname.db).
>     In the case, the source drawing will automatically inherit the 
> database units of the /target /drawing.
>
>     This can happen when layers from an AutoCAD drawing (.dwg) are 
> translated into an ARRIS database
>     without indicating you wish to change the database units from feet 
> to inches along the way. Once there is data (i.e. graphics)
>     in n ARRIS layer, you can no longer change the database unit 
> value...unless you clear all the layers or make some crucial   
>     low-level modifications which Roger describes but I would not 
> necessarily recommend except as a last resort (no offense Roger).
>
>     After an /inches-to-feet /conversion oversight has been made, the 
> only way I know of to safely change the inches over to feet (without
>     using Roger's nifty workaround) is to copy the layers into another 
> drawing that already contains a database unit value of feet.
>   
>     The Paste From Clipboard function should not have the ability to 
> override the existing database unit value (i.e. feet) in a non-empty 
> drawing
>     regardless of the target drawings database units. If it does, 
> there is something amiss.
>
> Robert Head wrote:
>> I have copied a layer using the clipboard function and find that it 
>> has changed the output display format from feet to inches.  This is 
>> an ongoing problem and I know that it has to do with a database that 
>> was translated. 
>> I then go into Arris to try to change it back with the error message 
>> of "Cannot change UNITS - database not empty" although "Arris" did 
>> allow on the copy.  This has also rescaled all of my database by a 
>> factor of 3.91836735 including my existing sheets. 
>> Is it possible to make Arris reset the format? as it did on it's own?
>> At a loss :-(
>>
>>  
>> Robert Head
>> CLM Architect LLC
>> 248 231 4838
>>  
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>>   
>

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