Display Mode
The data returned can vary drastically depending on the display mode of the TrnQuery. The display mode is split into the following mutually exclusive options:
Ordering Trend sample options
- 0 - Order returned samples from oldest to newest
- 1 - Order returned samples from newest to oldest. This mode is not supported when the Raw data option has been specified.
Condense method options
- 0 - Set the condense method to use the mean of the samples.
- 4 - Set the condense method to use the minimum of the samples.
- 8 - Set the condense method to use the maximum of the samples.
- 12 - Set the condense method to use the newest of the samples.
Stretch method options
- 0 - Set the stretch method to step.
- 128 - Set the stretch method to use a ratio.
- 256 - Set the stretch method to use raw samples (no interpolation).
Gap Fill Constant option
- n - the number of missed samples that the user wants to gap fill) x 4096.
Last valid value option
- 0 - If we are leaving the value given with a bad quality sample as 0.
- 2097152 - If we are to set the value of a bad quality sample to the last valid value (zero if there is no last valid value).
Raw data option
- 0 - If we are not returning raw data, that is we are using the condense and stretch modes to compress and interpolate the data.
- 4194304 - If we are to return totally raw data, that is no compression or interpolation. This mode is only supported if we have specified the DataMode of the query = 1. When using this mode, more samples than the maximum specified above will be returned if there are more raw samples than the maximum in the time range.
Published June 2018