[esp-r] Re: Rotating a model with a predefined entity through 270º and getting some orientations of 450º resulting in warnings

[Jon Hand]

I tend to be rotating models less than 270 degrees and so we obviously need to put in
some logic checks to test if entities that are defined as a origin and rotation are run past
360 degrees. The warnings are from code that is reading the input file(s) - the actual
calculation may or may not be impacted.  

Pre-defined entities include both polygons (for mass) and one or more visual
bodies which can be passed to Radiance. The polygons are just points in space
and if they draw correctly in the model then they should not be an issue.
And if the bodies related to Radiance - well the test there would be to render
and image to confirm whether or not those bodies are mis-interpreted.

If, there were shading bodies that generated a warning then running a shading analysis
and looking at the patterns of shading and/or insulation should indicate whether
or not the shading pattern is silly.  

The other way to get into positive coordinates is to do a global transform
of the model. 

Regards, Jon Hand
________________________________________
From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk] on behalf of Christopher Heard [cheard at prodigy.net.mx]
Sent: 21 March 2019 16:08
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] Rotating a model with a predefined entity through 270º and getting some orientations of 450º resulting in warnings

I have just rotated a model with a predefined entity (a bed) through 270º around a point that ensures that the resulting model has all positive values for x and y for all vertices.

However for parts of the bed, warnings are issued that the orientation is 450º which is greater than the normal maximum of 359º.

I got rid of the warnings by manually editing the .geo file to change the offending values to 90º - I realise that manually editing the files for Esp-r models is strongly disapproved of, but  some of us who ‘grew up’ inputting models into DOE2.1e ASCII building description files before the days of graphical interfaces or even Joe Huang’s DrawBDL program (to check what had put into the BDL file was at least geometrically correct - the first time I used it was something of a revelation! - Walls flying in the air! - This an argument for not editing the Esp-r files directly) and so find it hard to kick the habit!

Has anyone else come across this feature when rotating a model? And more to the point does it matter? i.e. Will the insolation etc. calculations work with the 450º orientation or will it cause the works to gum-up?

Christopher Heard


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