/vis/rayTracer/

RayTracer commands.

Sub-directories :

Commands :


trace [fileName]

Start the ray tracing.
Define the name of output JPEG file.

Available Geant4 state(s) : Idle

Parameters
fileName type s Omittable : default value = g4RayTracer.jpeg


column [nPixel]

Define the number of horizontal pixels.

Range : nPixel > 0

Available at all Geant4 states.

Parameters
nPixel type i


row [nPixel]

Define the number of virtical pixels.

Range : nPixel > 0

Available at all Geant4 states.

Parameters
nPixel type i


target [X] [Y] [Z] [Unit]

Define the center position of the target.

Available at all Geant4 states.

Parameters
X type d Omittable : default value = 0
Y type d Omittable : default value = 0
Z type d Omittable : default value = 0
Unit type s Omittable : default value = m Parameter candidates : pc km m cm mm mum nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi


eyePosition [X] [Y] [Z] [Unit]

Define the eye position.
Eye direction is calsurated from (target - eyePosition).

Available at all Geant4 states.

Parameters
X type d Omittable : default value = 0
Y type d Omittable : default value = 0
Z type d Omittable : default value = 0
Unit type s Omittable : default value = m Parameter candidates : pc km m cm mm mum nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi


lightDirection [Px] [Py] [Pz]

Define the direction of illumination light.
The vector needs not to be a unit vector, but it must not be a zero vector.

Range : Px != 0 || Py != 0 || Pz != 0

Available at all Geant4 states.

Parameters
Px type d Omittable : default value = 0.1
Py type d Omittable : default value = 0.2
Pz type d Omittable : default value = 0.3


span [span] [Unit]

Define the angle per 100 pixels.

Range : span>0.

Available at all Geant4 states.

Parameters
span type d Omittable : default value = 50
Unit type s Omittable : default value = deg Parameter candidates : rad mrad sr deg radian milliradian steradian degree


headAngle [headAngle] [Unit]

Define the head direction.

Range : headAngle>=0. && headAngle<360.

Available at all Geant4 states.

Parameters
headAngle type d Omittable : default value = 270
Unit type s Omittable : default value = deg Parameter candidates : rad mrad sr deg radian milliradian steradian degree


attenuation [Length] [Unit]

Define the attenuation length for transparent material.
Note that this value is independent to the attenuation length for the optical photon processes.

Range : Length > 0.

Available at all Geant4 states.

Parameters
Length type d Omittable : default value = 1
Unit type s Omittable : default value = m Parameter candidates : pc km m cm mm mum nm Ang fm parsec kilometer meter centimeter millimeter micrometer nanometer angstrom fermi


distortion [flag]

Distortion effect of the fish eye lens.

Available at all Geant4 states.

Parameters
flag type b Omittable : default value = 0


ignoreTransparency [flag]

Ignore transparency even if the alpha of G4Colour < 1.

Available at all Geant4 states.

Parameters
flag type b Omittable : default value = 0


backgroundColour [red] [green] [blue]

Set background colour: red green blue: range 0.->1.
E.g: /vis/rayTracer/backgroundColour 0 0 0

Available at all Geant4 states.

Parameters
red type d Omittable : default value = 1
green type d Omittable : default value = 1
blue type d Omittable : default value = 1