Two Peak Finder¶
The TwoPeakFinder device will integrate the input image in the vertical direction, then find two peaks, one left and one right from the zero_point.
Input to the Device¶
| Property key | Description |
|---|---|
| zeroPoint | The device will try to find a peak left, and a peak
right, from this point.
|
| threshold | TODO - currently unused.
|
| roi | The user-defined region of interest (ROI), specified
as [lowX, highX].
[0, 0] will be interpreted as ‘whole range’.
|
Commands¶
| Slot key | Description |
|---|---|
| reset | Reset error count.
|
Output of the Device¶
| Property key | Description |
|---|---|
| frameRate | The rate of incoming and outgoing images. It is
refreshed once per second.
|
| errorCount | Number of errors.
|
| peak1Value | Amplitude of the 1st peak.
|
| peak1Position | Position of the 1st peak.
|
| peak1Fwhm | FWHM of the 1st peak.
|
| peak2Value | Amplitude of the 2nd peak.
|
| peak2Position | Position of the 2nd peak.
|
| peak2Fwhm | FWHM of the 2nd peak.
|