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JacquesLB (2) [Avatar] Offline
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Point sizes are scaled from a "default" size, but I can't find the (terminal dependent) absolute value of this default.

I wish to set a single point (pt 6) in a 3D splot to get a fixed circle of (physical) size 1, in the plane of the screen, when I change view with the mouse. This is to illustrate 3D coordinate systems (see the simplified example below).

I managed to adjust the size by trial and error, but it would much more convenient to compute the scaling factor from known values. Hence, I need the default point size...

Any idea?

Thank you.


PS: load the file interactively in gnuplot, then use the mouse to change view. The two blue circles (seen as ellipses) should stay tangent to the black one, whatever the view point.
philipp.janert (286) [Avatar] Offline
I am sorry, I don't have an answer for you. For a terminal like wxt,
it's not even clear what units the size of a point symbol should be
given (pixels?).

Cute demo, by the way.