Request to support filename config when downloading a plot as a png

[danday74]

The plotly modebar provides a "download plot as a png" button

However, the image downloaded is always called "newplot.png"

Please provide a config point which will allow this default to be overriden - thanks

[alexcjohnson]

It's completely undocumented, but you can set graphDiv.fn (for filename - leave off the .png extension) and that will get used for the download. You can use that, but we should be able to do better. Perhaps layout.filename or something?

[etpinard]

layout.filename would help users affected by #1227

[alexcjohnson]

layout.filename would help users affected by #1227

I doubt it - if we can't set the filename to newplot.png we won't be able to set it to the user's choice of name either.

[danday74]

just to confirm that using graphDiv.fn worked - many thanks

        graphDiv.fn = "myfilename";
        Plotly.newPlot(graphDiv, data, layout, options);

[danday74]

want to close this off?

[etpinard]

I would leave this open. That graphDiv.fn = "" hack is not pretty. We could do better e.g.:

Plotly.newPlot(gd, [], {filename: ""})

// or
Plotly.newPlot(gd, [], {}, {downloadImageFilename: ""})

[alexcjohnson]

👍 for a config param eg Plotly.newPlot(gd, [], {}, {downloadImageFilename: ""})

[Braintelligence]

Hello everyone,
so the filename config referenced for Plotly.downloadImage is wrong? It doesn't seem to really work as well...

https://plot.ly/javascript/plotlyjs-function-reference/#plotlydownloadimage

EDIT: I realized this is about the modebar, so sorry for derailing a bit. Still, I can't get downloadImage to respect the filename config. It always pops out as newplot.png...

EDIT2: Nevermind, I had some formatting errors within the downloadImage-Call. Works as expected. Sorry for the trouble 😹

[etpinard]

This one was done in #2607 - released in v1.38.0

[HF-1]

Hi, does anyone know how I can access this feature in Python?

[alexcjohnson]

@fazola see https://plotly.com/python/configuration-options/#customizing-download-plot-options