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ValueError: could not convert string to float: 'C'

See original GitHub issue

In [3]: svg.path.parse_path("M 5 1 v 7.344 A 3.574 3.574 0 003.5 8 3.515 3.515 0 000 11.5 C 0 13.421 1.579 15 3.5 15 A 3.517 3.517 0 007 11.531 v -
   ...: 7.53 h 6 v 4.343 A 3.574 3.574 0 0011.5 8 3.515 3.515 0 008 11.5 c 0 1.921 1.579 3.5 3.5 3.5 1.9 0 3.465 -1.546 3.5 -3.437 V 1 z")
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-3-5f3c4d12c583> in <module>
----> 1 svg.path.parse_path("M 5 1 v 7.344 A 3.574 3.574 0 003.5 8 3.515 3.515 0 000 11.5 C 0 13.421 1.579 15 3.5 15 A 3.517 3.517 0 007 11.531 v -7.53 h 6 v 4.343 A 3.574 3.574 0 0011.5 8 3.515 3.515 0 008 11.5 c 0 1.921 1.579 3.5 3.5 3.5 1.9 0 3.465 -1.546 3.5 -3.437 V 1 z")

~/.local/lib/python3.9/site-packages/svg/path/parser.py in parse_path(pathdef, current_pos)
    177             radius = float(elements.pop()) + float(elements.pop()) * 1j
    178             rotation = float(elements.pop())
--> 179             arc = float(elements.pop())
    180             sweep = float(elements.pop())
    181             end = float(elements.pop()) + float(elements.pop()) * 1j

ValueError: could not convert string to float: 'C'

Valid SVG:

<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16">
  <path d="M 5 1 v 7.344 A 3.574 3.574 0 003.5 8 3.515 3.515 0 000 11.5 C 0 13.421 1.579 15 3.5 15 A 3.517 3.517 0 007 11.531 v -7.53 h 6 v 4.343 A 3.574 3.574 0 0011.5 8 3.515 3.515 0 008 11.5 c 0 1.921 1.579 3.5 3.5 3.5 1.9 0 3.465 -1.546 3.5 -3.437 V 1 z" style="line-height:normal;-inkscape-font-specification:Sans;text-indent:0;text-align:start;text-decoration-line:none;text-transform:none;marker:none" color="#000" font-weight="400" font-family="Sans" overflow="visible" fill="#474747"/>
</svg>

Issue Analytics

State:
Created 2 years ago
Comments:19 (14 by maintainers)

Top GitHub Comments

1reaction

tatarizecommented, Mar 25, 2021

Yeah, svgelements has that as a function approximate_arcs_as_cubics() or something like that that’ll go through and replace the damned things. My personal preference is a circular arc with a control point and endpoint. You only need 3 points to define a circle and they’d be easy to write by hand, etc. I even raised and issue at WC3 for it. No joy.

0reactions

regebrocommented, Mar 29, 2021

“Mostly the existence of an unrecognized character is supposed to end the parsing right there.”

Oh, right, I totally forgot about that. Good call.