photgrid_t

type  photgrid_t

The photgrid_t type represents a grid of photometric data.

This grid may be used to interpolate the intensity (or related quantities) for a set of atmosphere parameter values.

subroutine  get_rank(rank)

Get the rank (dimension) of the grid.

Parameters

rank [integer ,out] :: Returned rank.

subroutine  get_axis(i, axis)

Get an axis of the grid.

Parameters

• i [integer ,in] :: Index of axis (between 1 and rank)

• axis [axis_t ,out] :: Returned axis.

subroutine  get_cache_count(cache_count)

Get the number of nodes currently held in the grid cache.

Parameters

cache_count [integer ,out] :: Returned number of nodes.

subroutine  get_cache_limit(cache_limit)

Get the grid cache occupancy limit.

Parameters

cache_limit [integer ,out] :: Returned occupancy limit.

subroutine  set_cache_limit(cache_limit, stat)

Set the grid cache occupancy limit.

Parameters

cache_limit [integer ,in] :: Occupancy limit.

Options

stat [integer ,out] :: Status code.

subroutine  interp_intensity(x_vec, mu, I, stat, deriv_vec)

Interpolate the photometric intensity, normalized to the zero-point flux.

Parameters

• x_vec (*) [real(RD),in] :: Atmosphere parameter values.

• mu [real(RD),in] :: Cosine of angle of emergence relative to surface normal.

• I [real(RD),out] :: Photometric intensity (/sr).

Options

• stat [integer ,out] :: Status code.

• deriv_vec (*) [logical ,in] :: Derivative flags.

subroutine  interp_E_moment(x_vec, k, E, stat, deriv_vec)

Interpolate the photometric E-moment, normalized to the zero-point flux.

Parameters

• x_vec (*) [real(RD),in] :: Atmosphere parameter values.

• k [integer ,in] :: Degree of of moment.

• E [real(RD),out] :: Photometric E-moment.

Options

• stat [integer ,out] :: Status code.

• deriv_vec (*) [logical ,in] :: Derivative flags.

subroutine  interp_D_moment(x_vec, l, D, stat, deriv_vec)

Interpolate the photometric D-moment, normalized to the zero-point flux.

Parameters

• x_vec (*) [real(RD),in] :: Atmosphere parameter values.

• l [integer ,in] :: Harmonic degree of moment.

• D [real(RD),out] :: Photometric D-moment.

Options

• stat [integer ,out] :: Status code.

• deriv_vec (*) [logical ,in] :: Derivative flags.

subroutine  interp_flux(x_vec, F, stat, deriv_vec)

Interpolate the photometric flux, normalized to the zero-point flux.

Parameters

• x_vec (*) [real(RD),in] :: Atmosphere parameter values.

• F [real(RD),out] :: Photometric flux.

Options

• stat [integer ,out] :: Status code.

• deriv_vec (*) [logical ,in] :: Derivative flags.