[esp-r] Re: How does esp-r calculates the shading coefficients .shda

[Jon Hand]

Shading is calculated in the 'ish' module of ESP-r.  The code is documented
and is also described in Joe Clarke's book (2nd edition).  Note that there
are two sets of calculations - an initial pass to calculate shading (some
intermediate information is stored in temporary files) and a 2nd pass to
calculation the insolation distribution within rooms.

There are LOTS of transforms done.  In lots of different places so allocate
time for review of the code. There is a 'trace' facility that will write out the
intermediate results.

Consider also running the ish module in a debugging environment so you
can single-step through the calculations.

-Jon Hand
________________________________________
From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk] On Behalf Of l.lars [l.lars at gmx.de]
Sent: 27 March 2013 22:49
To: esp-r at lists.strath.ac.uk
Subject: [esp-r]  How does esp-r calculates the shading coefficients .shda

Hello,
is there a way to figure out, how ESP-r calculates the shading factors
you can find in the .shda file?
I wonna try to improve the software, so that you can use different
shading bodies. Not only boxes.

Thanks for your help
Lars



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