On 10/1/2015 5:03 PM, Cirilo Bernardo wrote: > I think in general VRML models suffer from a somewhat random (0,0,0) > reference > and even the orientation is typically 1 of 4 common orientations. This > is due in > part from the habits of whoever created the model and in part from the > modeling > software used. We will see more such problems when we have the capability to > use more types of models. The only scheme I can think of so far which may > help with this issue is to have an optional file alongside each 3D model > file to > provide information needed to put the model into a nominal position. For > models > not at (0,0,0) such a scheme would also save people from typing the same > information into the VRML scale/rotation/translation box all the time. > The down > sides of course are these extra files and the fact that if 2 files have > the same > name but different (0,0,0) someone will have to remember to edit the > positioning > file. The file is not intended to replace the scale/rotation/translation > within KiCad > but to transparently add to it. The model manager can make this happen > without > additional user interaction. Unfortunately this scheme can only help to > create the > nominal position - whatever a user decides that must be. It doesn't help > at all > if footprints change their (0,0) reference between projects, which is > the case for > the newer THT footprints in the KiCad libraries. > > Changes so far which can cause problems: > schematic symbols: > + many changed size and the location of connection points > + Diodes were made consistent so K is always Pin 1 (which I think should > have > been the case even for THT since K is the marked pin) > + Orientations may have changed > > footprints: > + (0,0) reference for THT components has changed; I'm not familiar at > all with > the orientation of SMT footprints so I can't say if they've changed, > but some > rules were put in place to ensure a consistent orientation. I suspect > the (0,0) > position remains the 'center of body' since that's what's required by > placing > machines, but I haven't been following the changes.
Has anyone checked if the position files are correct for THT footprints with the pin 1 reference points at 0,0? If this breaks user's position files used for pick & place, this is *really* bad and I would consider this a potential stable release blocker. Someone needs to confirm this so we can make a decision. > + Orientation has changed for many THT components > > VRML models: > + many have changed orientation > + many have changed (0,0,0) I would prefer that the orientation and scaling match footprint so the user doesn't have to change anything by default. In other words, the scaling is always 1 and the offsets and rotation angles are always 0. > > We should definitely provide big red warning signs for users telling them of > the potential problems and reminding them that they should archive all > existing projects before switching if they make use of the kicad libraries. > > - Cirilo > > > On Fri, Oct 2, 2015 at 6:24 AM, Wayne Stambaugh <stambau...@gmail.com > <mailto:stambau...@gmail.com>> wrote: > > The only down side is that as improvements are made to the 3D models, > they would not be visible. I hope at some point in the future our 3D > models could be improved (some of material properties are very wrong) > now that FreeCAD exports vrml files that the 3D viewer can use. I would > think the demos should track the latest and greatest to show case > KiCad's capabilities. > > The "everything" project archive sounds interesting but it should be > discussed outside this bug report. > > On 10/1/2015 4:15 PM, Chris Pavlina wrote: > > It's a right shame we don't have any standalone project archive format > > that holds *everything*. That would be *very* useful for this sort of > > thing, as well as just generally making sure projects can always be > opened. > > > > I wonder if there is any developer interest in that besides me. It's > > definitely on my list of things I'd like to work on post-release, but I > > don't have much time lately... > > > > On Oct 1, 2015 3:52 PM, "nnn" <nnn4...@o2.pl <mailto:nnn4...@o2.pl> > <mailto:nnn4...@o2.pl > <mailto:nnn4...@o2.pl>>> wrote: > > > > Why not to add 3d files (from some old revision of library) to > > projects folder and use paths relative to KIPRJMOD? If demos will > > refer to some special revision of library with 3d models they will > > break each time the models are moved or renamed. > > > > > > W dniu 01.10.2015 o 16:20, Wayne Stambaugh pisze: > > > > I just committed a fix for broken 3D model link in the interf_u > demo > > https://bugs.launchpad.net/kicad/+bug/1500956. While I was at > it, I > > looked at the rest of the demos that have board files and they > are > > broken (one partially) as well. Here is an opportunity for > > someone to > > help out the project and no programming experience is require. > > All you > > need to know is how to associate 3D models with footprints in > > Pcbnew and > > how to use bzr to create branch and a patch (well documented > many > > places). If someone has time to do this before the stable > > release, it > > really would be nice if our demos showed off the 3D models. > > > > Thanks, > > > > Wayne > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~kicad-developers > > Post to : kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net> > > <mailto:kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net>> > > Unsubscribe : https://launchpad.net/~kicad-developers > > More help : https://help.launchpad.net/ListHelp > > > > > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~kicad-developers > > Post to : kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net> > > <mailto:kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net>> > > Unsubscribe : https://launchpad.net/~kicad-developers > > More help : https://help.launchpad.net/ListHelp > > > > > > > > _______________________________________________ > > Mailing list: https://launchpad.net/~kicad-developers > > Post to : kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net> > > Unsubscribe : https://launchpad.net/~kicad-developers > > More help : https://help.launchpad.net/ListHelp > > > > _______________________________________________ > Mailing list: https://launchpad.net/~kicad-developers > Post to : kicad-developers@lists.launchpad.net > <mailto:kicad-developers@lists.launchpad.net> > Unsubscribe : https://launchpad.net/~kicad-developers > More help : https://help.launchpad.net/ListHelp > > _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
