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I would like to create a 2D graphics with lines, connecting points at integer coordinates and control the line's thickness expressed in the original coordinate system. E.g.

Line[{{0,0}, {1,0}, {2,1}, ...}]

such that the line has a thickness of 0.25 in terms of the coordinate system used for defining the points.

This should resemble the way you can define the radius of a Tube in 3D graphics.

Is this possible (in a convenient way)?

I know about Thickness (which uses plot-range-relative units) and AbsoluteThickness (which uses image-relative units). Neither is suitable, since the plot's range and size are not know in advance (they vary, e.g. inside a Manipulate).

This question Scaling edge thicknesses seems related, but the answers are not really good workarounds. Probably, Wolfram needs to add another option to solve this.

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    – Dunlop
    Commented Jan 26, 2020 at 19:49
  • $\begingroup$ Can you show a mimimal example of some code where you can demonstrate what you have tried? Especially to show what doesn't work? This would help others understand your problem $\endgroup$
    – Dunlop
    Commented Jan 26, 2020 at 19:50

1 Answer 1

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If you want round corners, StadiumShapeis a possibility : 

data = {{0, 0}, {1, 0}, {2, 1}}
Graphics[Line[data]]
Graphics[StadiumShape[#, 0.25] & /@ Partition[data, 2, 1]]

enter image description here enter image description here

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  • $\begingroup$ Good suggestion. I had never heard of StadiumShape (apparently, in 3D there is also CapsuleShape; you can, however ,accomplish that already through Tube with CapForm["Round"]). It would have been nice if Mathematica would show StadiumShape on the reference page for Line under 'See Also'. It is a bit unfortunate that StadiumShape is restricted to single line segments, but mapping it over a partition is not a big deal. Thanks. $\endgroup$
    – Tom Verhoeff
    Commented Jan 27, 2020 at 12:49

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