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SCATMECH > Classes and Functions >
Surface Scattering Models
> Instrument_BRDF_Model
Abstract class
Instrument_BRDF_Model
The abstract class Instrument_BRDF_Model was created
in order to classify a set of scattering models as improper
BRDF models. Models which inherit
Instrument_BRDF_Model should be understood to not
represent true scattering functions, but rather those which
would be measured by instruments under certain conditions.
Parameters:
| Parameter |
Data
Type |
Description |
Default |
| lambda |
double |
Wavelength of the light
in vacuum [µm].
(Inherited from BRDF_Model.) |
0.532 |
| type |
int |
Indicates whether the light is incident from above the
substrate or from within the substrate and whether the
scattering is evaluated in reflection or transmission.
The choices are:
0 : Light is incident from the above the substrate, and scattering is evaluated in reflection.
1 : Light is incident from the above the substrate, and scattering is evaluated in transmission.
2 : Light is incident from the within the substrate, and scattering is evaluated in reflection.
3 : Light is incident from the within the substrate, and scattering is evaluated in transmission.
For 1, 2, and 3, the substrate must be non-absorbing.
(Inherited from BRDF_Model). |
0 |
| substrate |
dielectric_function |
The
optical constants of the substrate, expressed as a
complex number (n,k) or, optionally, as a function of
wavelength.
(Inherited from BRDF_Model.) |
(4.05,0.05) |
See also:
SCATMECH Home, Conventions, BRDF_Model,
Include file:
#include "instrument.h"
Source code:
instrument.cpp
reg_instrument.cpp
Definition of public elements:
class Instrument_BRDF_Model
: public BRDF_Model
{
};
typedef Model_Ptr<Instrument_BRDF_Model> Instrument_BRDF_Model_Ptr;
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Current SCATMECH version: 7.22 (April 2021)
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