Add tapering option to pcbnew line segment

[Seth Hillbrand]

It would be nice to have the option of setting a start and end line width for individual segments in pcbnew. This would be a smooth taper from a wide, low-impedance trace to a narrower trace. Note, the taper should have an option for linear or curved.

[Seth Hillbrand (sethh)]

This is wishlist. Just noting it here so I don't forget later.

[Nick Østergaard (nickoe)]

Remember the microwave toolbox tools.

[Seth Hillbrand (sethh)]

@nickoe, you are right, one can backend a shape description file into a parametric necking but that's not really the idea here. I am envisioning having two traces of different widths be connected by a taper item. This is a logical extension of teardrops (see attached image), so I'm just noting here for my v6 list.

[KiCad Janitor (kicad-janitor)]

KiCad bug tracker has moved to Gitlab. This report is now available here: https://gitlab.com/kicad/code/kicad/-/issues/2092