[Radiance-general] gendyamtx - cumulative results

[Greg Ward]

Hi Jack,

I think the easiest method would be to extract the hours you want to accumulate from your WEA file, send them through gendaymtx and dctimestep like so:

	gendaymtx -of subyear.wea > subyear1.smx
	dctimestep -if -n 720 -o win1w_%03d.hdr winterior1w.vmx blinds30.xml westelev.dmx subyear1.smx
	pcomb win1w_*.hdr > win1w_sum.hdr
	rm win1w_*.hdr

This will generate 720 images corresponding to a month's worth of hourly inputs from window #1 on the west elevation.  The above steps (except the first) will have to be repeated for your different windows.  If you do a year at a time, you'll have to sum all these images together in batches, since pcomb only handles up to 1024 images at a time (so long as you don't run into system limits first).

I hope this addresses your question.  To be honest, I've never done anything like this and I'm not entirely sure I got it right.

Cheers,
-Greg

> From: Rob Guglielmetti <rob.guglielmetti at gmail.com>
> Date: June 7, 2013 11:26:03 AM PDT
> 
> Guess I'd better read that thing. Initially, it did not support 3 phase. Hopefully Andy or Greg or someone else who actually knows what the hell's going on can answer your question. =8-)
> 
> - Rob
> 
> On Jun 7, 2013, at 12:15 PM, Jack de Valpine <jedev at visarc.com> wrote:
> 
>> Sorry, but why not? I think Andy demos (for photocells) in the last version of his tutorial...
>> 
>> -Jack
>> 
>> On 6/7/2013 2:13 PM, Guglielmetti, Robert wrote:
>>> I think the simple answer is that gendaymtx currently doesn't support 3 phase. Weah.
>>> 
>>> - Rob
>>> 
>>> -----Original Message-----
>>> From: Jack de Valpine [mailto:jedev at visarc.com]
>>> Sent: Friday, June 07, 2013 11:24 AM
>>> To: Radiance general discussion
>>> Subject: [Radiance-general] gendyamtx - cumulative results
>>> 
>>> Hello All,
>>> 
>>> If I want to show cumulative results (images), eg lux hrs per year or lux hrs per month, what is the right way to do this for the 3 phase with dctimestep. So for example with an annual sky matrix generated with gendaymtx, do I sum this up somehow and then apply?
>>> 
>>> Thanks,
>>> 
>>> -Jack