Tracing an outline

[Geo]

@geoffk

has to be very accurate not an approximation so I can fit object to the shape.

Converting pixels to vector geometry is, by nature, inaccurate.

@geoffk

sketchups organic drawing tools are pretty crude

There’s little one might call ‘refined’ about jaggy square pixels.
Proficient use of SU’s native tools and Bezier extensions will yield far more accurate and smoother results.
See … Tweaking Tool Tips — SketchUp Sage Site

@Gully_Foyle

I have grown increasingly confident in my ability to trace intricate curves using SU’s limited drawing tools–primarily the Line and Arc tools–and you can exercise far greater control over segmentation. Additionally, there are various plugins to help with tracing curves and controlling their segment spacing. Perhaps you should consider importing the logos as traceable images and tracing them by hand in SU. You certainly have the greatest control over the outcome that way.

-Gully