Package index

Generate Sky EXRs

Functions for generating different sky models

generate_moon_latlong()

Generate the atmosphere with the moon

generate_planets()

Generate a bright-planet image array

generate_sky()

Generate a Hosek-Wilkie sky dome array

generate_sky_latlong()

Generate a location and time-specific sky dome (optionally with stars)

generate_stars()

Generate a star-field array aligned with generate_sky()

generate_sun_disk() generate_moon_disk()

Generate Sun and Moon Disk Radiance Images

Downloading

Download and manage model data

download_sky_data()

Download Prague Sky Model Coefficient Data

list_sky_data()

List cached sky data files

clear_sky_data()

Clear cached sky data files

Model Metadata

Prepare location, time, and model settings for native Prague sky queries

get_prague_sky_metadata()

Prepare Location and Time Metadata for Native Prague Sky Queries

Sample Values

Functions to sample specific values from the atmospheric model

calculate_sky_radiance()

Sample Prague sky radiance at a chosen wavelength.

calculate_sky_values()

Sample a direction from the Prague model.

calculate_sun_brightness()

Sample sun luminance at the disk center.

pkgdown utils

Internal but must be exported to meet CRAN guidelines