Hi there, Let's say I have a set of points (4 or more) on the same plane. feet = [[0,0,0], [77,0,0], [14,45.50,0], [63,45.5,0]]; They represent the holes in PCBs; my goal is to generate simple supports. For the time being, I link the four points with a cross like https://github.com/MerryKombo/3DDesign/blob/master/assets/Server%20Rack/1U/boards/orangepi%20zero.png . I now need to generate something sturdier, with more links for bigger boards with holes not forming a square like in https://github.com/MerryKombo/3DDesign/blob/master/assets/Server%20Rack/1U/boards/zdcHZN2bVy.png . I was thinking of making a mesh (a mess?) of all points with the help of BOSL2 combinations() and pairs() functions (so that I get each point connected to every other point), but it looks like these functions are not adapted to lists of points, just to arrays. Would there be anything in more or less standard libraries to get the job done, or am I on my own? Thanks for your help. -- Bruno Verachten

If you just want to construct all pairs of distinct points then you can do something like pair_list = [for(p1=points, p2=points) if (p1!=p2) [p1,p2]]; On Fri, Jul 9, 2021 at 3:57 PM Verachten Bruno <gounthar@gmail.com> wrote: > Hi there, > > Let's say I have a set of points (4 or more) on the same plane. > > feet = [[0,0,0], [77,0,0], [14,45.50,0], [63,45.5,0]]; > > They represent the holes in PCBs; my goal is to generate simple supports. > For the time being, I link the four points with a cross like > > https://github.com/MerryKombo/3DDesign/blob/master/assets/Server%20Rack/1U/boards/orangepi%20zero.png > . > I now need to generate something sturdier, with more links for bigger > boards with holes not forming a square like in > > https://github.com/MerryKombo/3DDesign/blob/master/assets/Server%20Rack/1U/boards/zdcHZN2bVy.png > . > > I was thinking of making a mesh (a mess?) of all points with the help > of BOSL2 combinations() and pairs() functions (so that I get each > point connected to every other point), but it looks like these > functions are not adapted to lists of points, just to arrays. > > Would there be anything in more or less standard libraries to get the > job done, or am I on my own? > > Thanks for your help. > -- > Bruno Verachten > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org >

Nice, thank you Adrian. I will give it a go. On Sat, Jul 10, 2021 at 1:25 AM Adrian Mariano <avm4@cornell.edu> wrote: > > If you just want to construct all pairs of distinct points then you can do something like > > pair_list = [for(p1=points, p2=points) if (p1!=p2) [p1,p2]]; > > On Fri, Jul 9, 2021 at 3:57 PM Verachten Bruno <gounthar@gmail.com> wrote: >> >> Hi there, >> >> Let's say I have a set of points (4 or more) on the same plane. >> >> feet = [[0,0,0], [77,0,0], [14,45.50,0], [63,45.5,0]]; >> >> They represent the holes in PCBs; my goal is to generate simple supports. >> For the time being, I link the four points with a cross like >> https://github.com/MerryKombo/3DDesign/blob/master/assets/Server%20Rack/1U/boards/orangepi%20zero.png >> . >> I now need to generate something sturdier, with more links for bigger >> boards with holes not forming a square like in >> https://github.com/MerryKombo/3DDesign/blob/master/assets/Server%20Rack/1U/boards/zdcHZN2bVy.png >> . >> >> I was thinking of making a mesh (a mess?) of all points with the help >> of BOSL2 combinations() and pairs() functions (so that I get each >> point connected to every other point), but it looks like these >> functions are not adapted to lists of points, just to arrays. >> >> Would there be anything in more or less standard libraries to get the >> job done, or am I on my own? >> >> Thanks for your help. >> -- >> Bruno Verachten >> _______________________________________________ >> OpenSCAD mailing list >> To unsubscribe send an email to discuss-leave@lists.openscad.org > > _______________________________________________ > OpenSCAD mailing list > To unsubscribe send an email to discuss-leave@lists.openscad.org -- Bruno Verachten