Mixed tabulated interface law¶
Description¶
The Mixed Tabulated interface law allows giving tabulated spectral values for reflection and transmission coefficients, for incidence angles between 0° and 90°. The coefficients are unpolarized, hence the “mixed” name. If you can provide polarized coefficients, use the polarized version instead.
The provided data consists in three angle variable spectra:
er : External reflection
ir : Internal reflection
t : Transmission
External reflection correspond to rays coming from the front side of the geometry (side the normal is oriented to). Internal reflection correspond to the back side (opposed to surface normal). The transmission coefficient is symmetric.
Note
Using this feature requires an Advanced Edition license
Children Nodes¶
External reflection spectrum for multiple angles |
|
Internal reflection spectrum for multiple angles |
|
Tansmission spectrum for multiple angles |
Parameters¶
none
Ocean XML 6.1 example¶
The following example was truncated, download full example
<intlaw type="mixtabulated" name="intlaw">
<avspectrum name="er" numwl="81" scale="angle">
3.80E-07 3.85E-07 3.90E-07 3.95E-07 [...]
0 0.2414 0.2926 0.3337 0.3527 [...]
5 0.2458 0.2964 0.3357 0.3524 [...]
10 0.2585 0.3068 0.3405 0.3502 [...]
15 0.278 0.3206 0.3441 0.342 [...]
20 0.3004 0.3319 0.34 0.3212 [...]
25 0.3182 0.3321 0.3198 0.28 [...]
[...]
</avspectrum>
<avspectrum name="ir" numwl="81" scale="angle">
3.80E-07 3.85E-07 3.90E-07 3.95E-07 [...]
0 0.2457 0.2947 0.3365 0.3551 [...]
5 0.257 0.3041 0.3411 0.3537 [...]
10 0.2846 0.3237 0.3467 0.3428 [...]
15 0.3174 0.3344 0.3297 0.2965 [...]
20 0.3196 0.299 0.2549 0.1883 [...]
25 0.2432 0.1771 0.1025 0.0438 [...]
[...]
</avspectrum>
<avspectrum name="t" numwl="81" scale="angle">
3.80E-07 3.85E-07 3.90E-07 3.95E-07 [...]
0 0.7639 0.7092 0.6687 0.6492 [...]
5 0.7595 0.7054 0.6667 0.6494 [...]
10 0.7468 0.695 0.6619 0.6517 [...]
15 0.7271 0.6812 0.6583 0.66 [...]
20 0.7047 0.67 0.6625 0.6809 [...]
25 0.6869 0.6698 0.6829 0.7222 [...]
[...]
</avspectrum>
</intlaw>