populate

Create an RGB image matrix of the observation using objects found by skysim.query and image configuration from an ImageSettings object.

Constants

MINIMUM_BRIGHTNESS

Minimum brightness for an object.

Functions

High-Level Functions

create_image_matrix(image_settings, ...)

Primary function for the populate module.

Low-Level Functions

get_empty_image(frames, image_pixels)	Initialize an empty image array.
get_seconds_from_midnight(local_time)	Calculate the number of seconds since midnight for some time value.
get_timed_background_colour(...)	Get the background colour for the image based on the colour-time mapping.
get_timed_magnitude(magnitude_mapping, ...)	Get the maximum magnitude value visible for a current time.
fill_frame_background(colour, frame_matrix)	Fill an RGB image with a colour.
filter_objects_brightness(maximum_magnitude, ...)	Filter a table of objects by the maximum magitude that can be seen.
filter_objects_fov(radec, fov, objects_table)	Filter a table of objects by their distance to a point.
magnitude_to_flux(magnitude)	Magnitude to flux conversion (relative to some reference value).
linear_rescale(data[, new_min, new_max])	Generic function to linearly scale data between some minimum and maximum.
get_scaled_brightness(object_table)	Add a new column to object_table with a relative [0,1] brightness value based on the "magnitude" column.
pixel_in_frame(xy, image_pixels)	Check if an xy pixel is in a square frame of size image_pixels.
add_object_to_frame(object_row, frame, ...)	Add a celestial object to the image.
fill_frame_objects(index, frame, ...)	Pickle-able function to call add_object_to_frame for a whole table of objects.
prepare_object_table(image_settings, ...)	Converts the star and planet tables into a single combined unit for a given frame.