Feature to export spectrum

30.07.2022 — Feature, 7th week, 8th week — 1 min read

In the radis app one of the most demanded feature is to download the spectrum . Now it is possible to download the spectrum in the form of a csv file .

1@app.post("/download-txt")
2async def download_txt(payload: Payload, background_tasks: BackgroundTasks):
3    try:
4        create_download_directory(DOWNLOADED_TXT_DIRECTORY)
5        spectrum = calculate_spectrum(payload)
6        file_name_txt = spectrum.get_name()
7        file_name = f"{file_name_txt}.csv"
8        file_path = f"{DOWNLOADED_TXT_DIRECTORY}/{file_name}"
9        if payload.use_simulate_slit is True:
10            print(" >> Applying simulate slit")
11            spectrum.apply_slit(payload.simulate_slit, "nm")
12    # returning the error response
13    except radis.misc.warning.EmptyDatabaseError:
14        return {"error": "No line in the specified wavenumber range"}
15    except Exception as exc:
16        print("Error", exc)
17        return {"error": str(exc)}
18    else:
19
20        wunit = spectrum.get_waveunit()
21        iunit = "default"
22        spectrum.savetxt(file_path,payload.mode,wunit=wunit,Iunit=iunit)
23        # running as a background task to delete the .spec file after giving the file response back
24        background_tasks.add_task(delete_spec, file_path)
25        return FileResponse(
26            file_path, media_type="application/octet-stream", filename=file_name
27        )

Thanks.