3 ms·
Yep. A way that helps me visualize it is that a parallel curve is what you need to make a set of railroad tracks. The tracks have to always be a constant dist
by upwardbound 4y ago
Yep. A way that helps me visualize it is that a parallel curve is what you need to make a set of railroad tracks. The tracks have to always be a constant distance apart when measured along the direction locally perpendicular to the tracks - i.e. the direction of the train's axle.
- aaronblohowiak 4y agoif you have a curve you need to make a parallel to, like for making a two part form for bent lamination, a common trick is to use a washer. you run the washer along the reference curve and your pencil in the hole in the washer. this gives you the parallel curve offset by the width of the solid part of the washer.
- pciexpgpu 4y agoThis sounds even better. I was imagining a similar idea where for every point in the Bezier you have a normal that can extend both directions by a specified amount. The smoothness still requires some interpolation which shouldn’t be too further from normal Bezier interpolation.
- surfskatr 4y agoGreat way to put this thanks. Was also confused between parallel and translated curve, as when sketching a design I’d usually do the former.
- db48x 4y agoThat’s exactly what dilating a curve with a circle means :D