Annex F, SubPhysicalUnit precisions

SubPhysicalUnit precisions

Annex F (normative) SubPhysicalUnit precisions#

Pulse#

Some attributes are named “[EFFECT]Pulse” (for example Shutter(n)StrobePulse). They should behave like a triangular function. Here is how they are defined:

• The main PhysicalUnit is a frequency which allows to modify the duration of the period T.
• t = 0s corresponds to the activation of the channel function.
• The TimeOffset SubPhysicalUnit is the offset of the end of the pulse from 0, the activation of the channel function, as a percentage of the period T.
• The DutyCycle SubPhysicalUnit corresponds to the fraction of one period in which the value is not 0.

Figure 5. Pulse-like attribute and their SubPhysicalUnits

If there aren’t any value given by the user, the TimeOffset and DutyCycle SubPhysicalUnits are defaulted to 100%:

Figure 6. Default Pulse-like attribute and their SubPhysicalUnits

PulseClose#

Some attributes are named “[EFFECT]PulseClose” (for example IrisPulseClose). They should behave like a decreasing ramp. Here is how they are defined:

• The main PhysicalUnit is a frequency which allows to modify the duration of the period T.
• t = 0s corresponds to the activation of the channel function.
• The TimeOffset SubPhysicalUnit is the offset of the end of the pulse from 0, the activation of the channel function, as a percentage of the period T.
• The DutyCycle SubPhysicalUnit corresponds to the fraction of one period in which the value is not 0.

Figure 7. PulseClose-like attribute and their SubPhysicalUnits

If there aren’t any value given by the user, the TimeOffset and DutyCycle SubPhysicalUnits are defaulted to 100%:

Figure 8. Default PulseClose-like attribute and their SubPhysicalUnits

PulseOpen#

Some attributes are named “[EFFECT]PulseOpen” (for example Frost(n)PulseOpen). They should behave like an increasing ramp. Here is how they are defined:

• The main PhysicalUnit is a frequency which allows to modify the duration of the period T.
• t = 0s corresponds to the activation of the channel function.
• The TimeOffset SubPhysicalUnit is the offset of the end of the pulse from 0, the activation of the channel function, as a percentage of the period T.
• The DutyCycle SubPhysicalUnit corresponds to the fraction of one period in which the value is not 0.

Figure 9. PulseOpen-like attribute and their SubPhysicalUnits

If there aren’t any value given by the user, the TimeOffset and DutyCycle SubPhysicalUnits are defaulted to 100%:

Figure 10. Default PulseOpen-like attribute and their SubPhysicalUnits

Revision History

This section lists all the changes that are made to GDTF.