Crashes in continuous scatterplot

[Mohit Sharma]

Hi,

I am using ttk 0.9.8. The continuousScatterplot  crashes for certain resolution, say 1000x1000. If I change the resolution to 1001X1001 then It is able to generate the CSP. Mostly it runs fine but if I run it for an ensemble then for some particular instance it'll fail. Even if I try to generate the CSP for that instance only, it'll seg fault and just changing the resolution fixes it. Few times I got double free() message.

Is it a known issue and has there been any fix for this in later versions? Because I was planning to install the latest version just to fix this but that'll be a big effort because I'll have to update the ubuntu too.

Thanks,

Mohit Sharma

[Julien Tierny]

Dear Mohit,

thanks a lot for your email.

> I am using ttk 0.9.8.

That version was released about four years ago and a lot has changed since.
I'd recommend to try to reproduce the issue with the latest version (1.2.0). If the problem persists, thanks for sending us the an example dataset that exemplifies the issue such that we can have a closer look into it.

> Because I was planning to install the latest version just to fix this but
> that'll be a big effort because I'll have to update the ubuntu too.

We provide binary packages (*deb) for Ubuntu 20.04 and 22.04, which are the official current long-term-support releases of Ubuntu.

I hope this helps.

Best regards,
--
Dr Julien Tierny
CNRS Researcher
Sorbonne Universite
https://julien-tierny.github.io/

[Mohit Sharma]

Hi,

I tried it with TTK 1.2. The same crash is still happening. Here is the data file. Try to generate a 1000 X 1000 CSP for the two fields in this data. It'll crash. Y-resolution doesn't matter i.e. for any 1000 X t, it crashes.

Regards,

Mohit Sharma

[Mohit Sharma]

Hi,

Were you able to fix it?

Thanks,

Mohit Sharma