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Description
Type |
Integer |
Description |
Duration of active part in video line |
"Set" effect |
— |
"Get" effect |
Returns the active duration of video line currently involved |
Classification
Class |
Channel |
Category |
Camera Timing |
Level |
Expert |
Identifiers
String |
Hactive_ns |
C, C++ |
MC_Hactive_ns |
.NET |
MC.Hactive_ns |
Numerical |
735 |
This parameter is expressed in nanoseconds (10-9 s).
The active part of the line is, by definition, this section of time when the camera sequentially provides pixel luminance information. The remaining inactive part of the line is called the horizontal blanking.
This parameter is a measure of the width of the camera active window. It results from a computation based on HCsync_Aft_ns and HCsync_Bfr_ns. Therefore it cannot be set by the user.
It is used to characterize analog area-scan cameras. It is meaningless for digital and line-scan cameras. In these cases, the parameter Hactive_Px is used instead.