[Octave-bug-tracker] [bug #58429] Export of plotted circles to SVG could use SVG circle primitive

[Pantxo Diribarne]

Follow-up Comment #5, bug #58429 (project octave):

I don't think it is possible to post-process a bunch of triangles and lines to
guess it they were intended to look like a circle or a polygon.

Another approach could be, in gl2ps_renderer, to overload
opengl_renderer::draw_marker, as we already do for
opengl_renderer::init_marker, and directly dump svg code using gl2psSpecial as
we do for text objects. 

I guess this won't work reliably for 3D scenes though.

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