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How to output a graph of multiple consecutive time points in Leonardo

Posted: Thu Jan 02, 2020 6:52 am
by Pat12138
Dear ENVI-met,

For example, I want to get a thermal comfort map containing 8:00 to 18:00. Is there any way to get it directly? Or does ENVI-met have the corresponding function to superimpose 11 pictures after outputting one picture every hour? Because I want to know the thermal comfort distribution of a day, not a point in time.

Best wishes,
Pat

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Thu Jan 02, 2020 11:39 am
by Tim
Hi Pat,

No, they have to be saved one by one but by on clicking on the blue dot of the next timesteps all settings are kept und you simply have to load the timestep with a doubleclick and then save the pictures. Saving the Leonardo map file, you are even able to save all settings, if you need to create the very same map (maybe of a different timestep) some time after closing Leonardo.

You could also check out the NetCDF output files which allow to load the data with the help of existing libraries into programs like RStudio oder ParaView where such automatized picture output routines are possible (I am sure about it for R, ParaView might be able to as well).

Best regards,
Tim

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Thu Jan 02, 2020 1:09 pm
by Pat12138
Dear Tim,

Thank you for your detailed answer, I will try the method you said.
In addition, I would like to ask whether this method is feasible. If I set the step size to 720 minutes, the simulation time to 24 hours, and the start time to 6 am, does it mean that I will get 6:00-17:00, 18:00-5:00, total Two blue dots, each blue dot is the result obtained by integrating 12 hours.
But because the time step is longer, will the results have a larger error?

Best wishes,
Pat

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Fri Jan 03, 2020 1:14 pm
by Pat12138
Dear Tim,

I have understood that the step size setting is not a solution to the problem, I am learning about software ParaView you mentioned, thank you for your help.

Best wishes,
Pat

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Fri Jan 03, 2020 3:05 pm
by Tim
Hi Pat,

Yes, that would not be the best solution since the output files just write out the current state of the simulation at the defined intervals. ParaView might be helpful for your task.

Best regards,
Tim

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Wed Jan 08, 2020 7:11 am
by Pat12138
Dear Tim,

I encountered a problem in learning paraview software.
After I imported the NetCDF file, I found that the minimum value of PMV / PPD in the data range is -999, which is absolutely impossible, but the values of temperature and absolute humidity are relatively normal. What causes this?

Best wishes,
Pat

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Wed Jan 08, 2020 7:33 am
by Pat12138
Dear Tim,

I guess the reason for the minimum value of the data range is -999, is it a rectangular building in the area, is it correct? If so, how do you quickly cut off the space occupied by the building in paraview?

In addtion,I added a PMV distribution map of ENVI-met at the same time. The black area is the building, and the maximum and minimum are 4.88 and 3.02, respectively.

thank you very much,
Pat

Re: How to output a graph of multiple consecutive time points in Leonardo

Posted: Wed Jan 08, 2020 9:11 am
by Tim
Hi Pat,

You are right. The NoDataValue of -999 is located inside the building. Maybe the Contour option in ParaView will help you cutting it but since I am no expert in ParaView, you need to check that by yourself, sorry.

Best regards,
Tim