| ID: | 4735 |
| From: | Erich Heinzle <a1...@gmail.com> |
| Date: | Mon, 1 Feb 2021 11:04:23 +1030 |
| Subject: | Re: eeschema->gschem (was: Re: [pcb-rnd] Feature Request - i understand) |
| in-reply-to: | 4733 from smilie <sm...@posteo.de> |
| replies: | 4746 from smilie <sm...@posteo.de> |
--000000000000b9e6c905ba3b8468 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable The calculation is simple if the file format is well documented, indicating how the origin for a symbol's transformations is specified. It may be that no translations are needed beyond that associated with the x,y location on the schematic, prior to and/or after application of the rotation, but as i said, some refactoring will be needed, to allow a symbol and it's elements to be rotated correctly. Regards, Erich On Mon, 1 Feb 2021 07:56 smilie, <smilie@posteo.de> wrote: > Hello Erich, > > I just saw it. > The rotation matrix A, B, C, D. > There is a discussion in the forum about it. > But the calculation seems simple. > > | A B | > | C D | > > then corresponds to a simplified rotation: > 0 =C2=B0, 90 =C2=B0, 180 =C2=B0, 270 =C2=B0 > or mirrored > 0 =C2=B0, 90 =C2=B0, 180 =C2=B0, 270 =C2=B0 > > look here: > > https://forum.kicad.info/t/unit-orientation-mirror-matrix-explained/7839/= 2 > https://de.wikipedia.org/wiki/Drehmatrix > > > Matrix multiplication is just: > > x '=3D x * A - y * B > y '=3D x * C + y * D > > or so. > The difficulty is to turn every element with it. > > Regards, > smilie > > > > > Am Fri, 29 Jan 2021 22:00:46 +1030 > schrieb Erich Heinzle <a1039181@gmail.com>: > > > I implemented kicad eeschema symbol/lib -> gschem symbol conversion, bu= t > > decided that I would need to refactor to allow eeschema schematic > > conversion. > > > > I may give it a go at some point. It ground to a halt when I realised I > had > > to apply rotation matrices attached to symbols embedded in the eeschema > > schematic to the individual respective symbols, with all of the attenda= nt > > issues wrt pin labels/text etc. > > > > Regards, > > > > Erich > > > > On Fri, 29 Jan 2021 02:27 , <rnd2@igor2.repo.hu> wrote: > > > > > > > > > > > On Thu, 28 Jan 2021, smilie wrote: > > > > > > >Thanks, > > > > > > > >is there a script converting kicad eeschem to geda gschem? > > > > > > Maybe this one: > > > > > > https://github.com/erichVK5/translate2geda > > > > > > Not sure if it does schematics, tho. > > > > > > >Or can i read the kicad netlist to gschem? > > > > > > AFAIK gschem is not like pcb-rnd, it can't load schematics in alien > > > formats. > > > > > > >Sorry for all the questions. > > > >It will decreasing. > > > > > > No worries, this list is for having these questions! > > > > > > > > > > > > > > > > --000000000000b9e6c905ba3b8468 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"auto">The calculation is simple if the file format is well docu= mented, indicating how the origin for a symbol's transformations is spe= cified.<div dir=3D"auto"><br></div><div dir=3D"auto">It may be that no tran= slations are needed beyond that associated with the x,y location on the sch= ematic, prior to and/or after application of the rotation, but as i said, s= ome refactoring will be needed, to allow a symbol and it's elements to = be rotated correctly.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"au= to">Regards,</div><div dir=3D"auto"><br></div><div dir=3D"auto">Erich</div>= </div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">= On Mon, 1 Feb 2021 07:56 smilie, <<a href=3D"mailto:smilie@posteo.de">sm= ilie@posteo.de</a>> wrote:<br></div><blockquote class=3D"gmail_quote" st= yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello= Erich,<br> <br> I just saw it.<br> The rotation matrix A, B, C, D.<br> There is a discussion in the forum about it.<br> But the calculation seems simple.<br> <br> | A B |<br> | C D |<br> <br> then corresponds to a simplified rotation:<br> 0 =C2=B0, 90 =C2=B0, 180 =C2=B0, 270 =C2=B0<br> or mirrored<br> 0 =C2=B0, 90 =C2=B0, 180 =C2=B0, 270 =C2=B0<br> <br> look here:<br> <br> <a href=3D"https://forum.kicad.info/t/unit-orientation-mirror-matrix-explai= ned/7839/2" rel=3D"noreferrer noreferrer" target=3D"_blank">https://forum.k= icad.info/t/unit-orientation-mirror-matrix-explained/7839/2</a><br> <a href=3D"https://de.wikipedia.org/wiki/Drehmatrix" rel=3D"noreferrer nore= ferrer" target=3D"_blank">https://de.wikipedia.org/wiki/Drehmatrix</a><br> <br> <br> Matrix multiplication is just:<br> <br> x '=3D x * A - y * B<br> y '=3D x * C + y * D<br> <br> or so.<br> The difficulty is to turn every element with it.<br> <br> Regards,<br> smilie<br> <br> <br> <br> <br> Am Fri, 29 Jan 2021 22:00:46 +1030<br> schrieb Erich Heinzle <<a href=3D"mailto:a1039181@gmail.com" target=3D"_= blank" rel=3D"noreferrer">a1039181@gmail.com</a>>:<br> <br> > I implemented kicad eeschema symbol/lib -> gschem symbol conversion= , but<br> > decided that I would need to refactor to allow eeschema schematic<br> > conversion.<br> > <br> > I may give it a go at some point. It ground to a halt when I realised = I had<br> > to apply rotation matrices attached to symbols embedded in the eeschem= a<br> > schematic to the individual respective symbols, with all of the attend= ant<br> > issues wrt pin labels/text etc.<br> > <br> > Regards,<br> > <br> > Erich<br> > <br> > On Fri, 29 Jan 2021 02:27 , <<a href=3D"mailto:rnd2@igor2.repo.hu" = target=3D"_blank" rel=3D"noreferrer">rnd2@igor2.repo.hu</a>> wrote:<br> > <br> > ><br> > ><br> > > On Thu, 28 Jan 2021, smilie wrote:<br> > >=C2=A0 <br> > > >Thanks,<br> > > ><br> > > >is there a script converting kicad eeschem to geda gschem?=C2= =A0 <br> > ><br> > > Maybe this one:<br> > ><br> > > <a href=3D"https://github.com/erichVK5/translate2geda" rel=3D"nor= eferrer noreferrer" target=3D"_blank">https://github.com/erichVK5/translate= 2geda</a><br> > ><br> > > Not sure if it does schematics, tho.<br> > >=C2=A0 <br> > > >Or can i read the kicad netlist to gschem?=C2=A0 <br> > ><br> > > AFAIK gschem is not like pcb-rnd, it can't load schematics in= alien<br> > > formats.<br> > >=C2=A0 <br> > > >Sorry for all the questions.<br> > > >It will decreasing.=C2=A0 <br> > ><br> > > No worries, this list is for having these questions!<br> > ><br> > ><br> > ><br> > >=C2=A0 <br> <br> <br> <br> </blockquote></div> --000000000000b9e6c905ba3b8468--
Reply subtree:
4735 Re: eeschema->gschem (was: Re: [pcb-rnd] Feature Request - i understand) from Erich Heinzle <a1...@gmail.com>
4746 Re: eeschema->gschem (was: Re: [pcb-rnd] Feature Request - i from smilie <sm...@posteo.de>