The spectrograph image that you generate by using the ClusterSGPicServe action is stored in a cache, so IDOL Server can produce it more quickly when it is requested again.
Set ForceRefresh to True to generate the spectrograph image from scratch when you send a ClusterSGPicServe action. This ensures that the image is current.
Set ForceRefresh to False to retrieve the spectrograph image from the cache after it has been generated the first time.
Note: You can retrieve the spectrograph from the cache only if you request it in the same format (width and height) and for the same date and time.
| Actions: | ClusterSGPicServe |
| Type: | Boolean |
| Default: | False |
| Example: | ForceRefresh=True
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