[Radiance-general] RE: Radmap: to produce irradiation map

[Francesco Anselmo]

Hi Prasanta,

You are using one month of hourly data, and in particular December.
Radiation his concentrated in the sun positions for each hour, 
therefore it is normal to see strong shadows coming from
the suns. This sun displacement inaccuracy becomes less important
with bigger weather datasets, but for one month of hourly data it is
inevitable.

Ensure to use the -dt 0 option to account for all suns. It should
be on by default, and for the December month it should not do much
difference, but when evaluating annual cumulative irradiation
it becomes important.

Regards,

Francesco