sl_create_rays_direct: Create direct rays

In SamsaRaLight: Simulate Tree Light Transmission Using Ray-Tracing

Create direct rays

Description

Create SamsaraLight diffuse rays of a plane with a classical sky hemisphere divided by meridians and parallels can use Standard Overcast Sky or Uniform Overcast Sky

Usage

sl_create_rays_direct(
  latitude_rad,
  declination_rad,
  nrj_direct_months,
  height_anglemin_rad,
  direct_anglestep_rad,
  slope_rad,
  bottom_azimut_rad,
  southazimut_ccw_rad,
  direct_startoffset_rad
)

Arguments

latitude_rad	double - Latitude of the plot (in radians)
declination_rad	double - Declination angle in radians:
nrj_direct_months	12 double vect - Monthly direct energy on a horizontal plan (in kWh.m-2)
height_anglemin_rad	double - Angle minimum between beam and soil (in radians)
direct_anglestep_rad	double - Hour angle between two diffuse beams (in radians)
slope_rad	double - Slope of the plan (in radians)
bottom_azimut_rad	double - Azimut of the vector orthogonal to the ground
southazimut_ccw_rad	double - Azimuth of south counterclockwise from x axis in the (x,y) system (in radians)
direct_startoffset_rad	double - Angle at which to start first direct ray (in radians)

Value

list of 3 elements : horizontal energy (double), slope energy (double) and diffuse rays (data.frame)

SamsaRaLight documentation built on April 16, 2026, 5:08 p.m.