Frequency of image generation

[bell...@gmail.com]

I think  I read somewhere that the frequency that images are generated is influenced by the aggregate_interval setting, but I can't seem to find the information anywhere.

If someone could point me to it, it would be greatly appreciated.

rich

[vince]

A quick google pointed me to https://www.weewx.com/docs/customizing.htm which has some examples along those lines.

In the code it seems to be in imagegenerator.py and xtypes.py

 

[Karen K]

I am not sure if it is described in the customization guide.

In imagegenerator.py the function skipThisPlot() decides based on timestamp, aggregation interval, and file existence:

• If the image file does not exist, the file is created.
• If there is no aggregation, the file is created every archive interval.
• If the timestamp is after the file creation time + aggregation interval, the file is created. 
• If the timestamp is on an aggregation boundary (that is the whole hour for an hour interval or midnight for a day interval etc.), the file is created.
• Otherwise it is not created.

[bell...@gmail.com]

Thank! At this point I am pretty sure it isn't in any docs or wiki pages.  I was just about to 'crack open' the code.  This will save me the trouble of that.

rich