Modify values at runtime about treepoem

[adamchainz]

only with monkey patching at current

Can you explain your use case?

[misilot]

I am trying to make a small and narrow code39 barcode.

I am looking at https://github.com/bwipp/postscriptbarcode/wiki/Resizing-Symbols where it is 0 0 instead of 10 10, but I think being able to modify the scale value might be more beneficial to me as that seems to at least help augment the shape I am looking for.

For example if you use the Online Generator https://the-burtons.xyz/barcode-generator/

Code39, Options: hidestars height=0.08 Scale 1 3 you get a barcode similiar to

If you have any other ideas on making it a small narrow barcode that would be great as well. Everything I have tried seems to result in a fairly large image.

Here is what my python looks like

        barcode_image = treepoem.generate_barcode(
            barcode_type='code39',  # One of the BWIPP supported codes.
            data=barcode,
            options={
                'hidestars': True,
                'includecheck': True,
                'includetext': False,
                'includecheckintext': False,
                'height': .08,
            })

Thanks!

[adamchainz]

I think it would work to add new arguments for these parameters, however I don't have time to write the code. I think we could call the arguments scale and moveto, as tuples of x, y coordinates, and set the defaults to the current values. Would you be able to write a PR, and check it works in your fork?

[adamchainz]

This is no longer required after #499, which should always calculate the bounding box correctly.