htrdr

Solving radiative transfer in heterogeneous media
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commit 3246ad893218e2aef2ac7dd6cf1bb51c3083f0f5
parent 0f455297c2c927146340afe4fac33a130fec6c40
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Fri, 14 Feb 2025 16:14:40 +0100

planets: update of the "output" section of the man

The output documented for the volumic radiative budget was not the
correct one: the estimate of the per realisation time was missing.

The text of the section has been broken down into paragraphs for easier
reading.

Diffstat:
Mdoc/htrdr-planets.1.in | 16+++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/doc/htrdr-planets.1.in b/doc/htrdr-planets.1.in @@ -20,7 +20,7 @@ .\" .\" You should have received a copy of the GNU General Public License .\" along with this program. If not, see <http://www.gnu.org/licenses/>. -.Dd November 6, 2024 +.Dd February 14, 2025 .Dt HTRDR-PLANETS 1 .Os .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" @@ -456,12 +456,14 @@ For an image rendering in the visible part of the spectrum the output is an .Xr htrdr-image 5 whose pixel components store 4 estimates. +.Pp The first, second, and third pairs of floating point values encode the estimated integrated radiance in W/sr/m^2 for the X, Y, and Z components of the CIE 1931 XYZ color space. The first value of each pair is the expected value of the average radiance of the pixel. The second value is its associated standard deviation. +.Pp The fourth and final pair records the microsecond estimate of the computation time per radiative path and its standard error. .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" @@ -474,12 +476,15 @@ whose first and second pixel components store the expected value and the standard error of the estimated brightness temperature .Pq in K , respectively. +.Pp The third and fourth components record the expected value and the standard deviation of the pixel radiance which is either an integrated radiance in W/sr/m^2 or a spectral radiance in W/sr/m^2/nm depending on whether this radiance was calculated for a spectral range or at a single wavelength. +.Pp The fifth and sixth pixel components are not used. +.Pp Finally, the last 2 components of the pixel record the estimate in microseconds of the computation time per radiative path and its standard error. @@ -500,19 +505,24 @@ The other values are set to 0. .Ss Volumic Radiative Budget For volumic radiative budget .Pq option Fl r -the output is a list of 5 ASCII values per line, with as many lines as +the output is a list of 7 ASCII values per line, with as many lines as there are tetrahedra in the volume mesh as an argument to the .Fl r option. The lines follow the order of the input meshes. +.Pp For each line, the first 2 values correspond to the expected value of the volumic radiative budget of the tetrahedron (in W/m^3) and its standard error. -The remaining 3 values are the sum of the Monte Carlo weights, the sum +.Pp +The following 3 values are the sum of the Monte Carlo weights, the sum of the Monte Carlo weights squared, and the total number of Monte Carlo weights used to calculate the preceding quantities. Their purpose is to help calculate the expected value and standard error of the volumic radiative budget for a set of tetrahedra. +.Pp +Finally, the last two values are the estimate and associated standard +error of the calculation time per radiative path. .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" .\" Returned status .\""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""