Bug 499178 - two columns of data have cross-aliased plotting at the regions that one of them is undefined (NaN)
Summary: two columns of data have cross-aliased plotting at the regions that one of th...
Status: REPORTED
Alias: None
Product: kst
Classification: Applications
Component: plotting (show other bugs)
Version: 2.0.8
Platform: Ubuntu Linux
: NOR major
Target Milestone: ---
Assignee: kst
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-01-27 02:20 UTC by vesselin kavalov
Modified: 2025-01-27 02:23 UTC (History)
0 users

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
screenshot of the problematic plot (52.08 KB, image/png)
2025-01-27 02:20 UTC, vesselin kavalov
Details
the csv file that demonstrated the problem (1.61 MB, text/csv)
2025-01-27 02:23 UTC, vesselin kavalov
Details

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Description vesselin kavalov 2025-01-27 02:20:19 UTC
Created attachment 177703 [details]
screenshot of the problematic plot

SUMMARY


STEPS TO REPRODUCE
1. CSV file with 2 colums of data. One of them has normal numerical values from beginning to end.
2. The other one is undefined till the the middle of the file (total about 74,000 lines) and then has some data,
then goes undefined (empty) for a shot while, then some value for a bit longer and then undefined to the end
3. 

OBSERVED RESULT
When plotted the regions where the second data is undefined, the tool displays the values of the first data, so the 2 curves overlap and creates the impression that the second data is mirroring the first one 

EXPECTED RESULT
The plot should be  just missing where the data is not defined

SOFTWARE/OS VERSIONS
PRETTY_NAME="Ubuntu 24.04.1 LTS"
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 vesselin kavalov 2025-01-27 02:21:30 UTC
I have the corresponding CSV file but there was no option to attach a second file
Comment 2 vesselin kavalov 2025-01-27 02:23:22 UTC
Created attachment 177704 [details]
the csv file that demonstrated the problem