Use more defaults in pyWinCalc

[RDmitchell]

From Christian
Mon, Nov 21, 2:00 PM

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99% of the users that will use pyWinCalc will want to have the standard NFRC conditions, and will want to calculate glazing system u_values at 1m. This is all the default condition when they download WINDOW.

I don't want everybody to have to defined this, it should default to it, unless otherwise specified
optical_standard_path = "standards/W5_NFRC_2003.std"
optical_standard = pywincalc.load_standard(optical_standard_path)

glazing_system_width = 1.0 # width of the glazing system in meters
glazing_system_height = 1.0 # height of the glazing system in meters

This call:
glazing_system_u_environment = pywincalc.GlazingSystem(optical_standard=optical_standard,
solid_layers=[generic_clear_6mm_glass, generic_clear_3mm_glass],
gap_layers=[gap_1],
width_meters=glazing_system_width,
height_meters=glazing_system_height,
environment=pywincalc.nfrc_u_environments())

Should be this:
glazing_system_u_environment = pywincalc.GlazingSystem(solid_layers=[generic_clear_6mm_glass, generic_clear_3mm_glass],
gap_layers=[gap_1])

And it would be even more user friendly if you could do this:
glazing_system_u_environment = pywincalc.GlazingSystem(solid_layers=["products/CLEAR_6.DAT", 363],
gap_layers=["AIR",0.127])
you look at the solid_layers and if it is a string you see if the file exists and you test if it is a JSON or Optics data file, if you get a number, you download that from the IGSDB. For the gap you have to figure out the gas and make the gap.
if it is a mixture it could be [["AIR",0.1,"ARGON",0.9],0.127]

This way we don't even need this statement anymore:
gap_1 = pywincalc.Gap(pywincalc.PredefinedGasType.AIR, .0127) # .0127 is gap thickness in meters

We can make this a lot more user friendly by doing a bit of work behind the scenes. We want to be friendly to our users and make it as easy for them as possible.