We can't remove the scaling option until we make the VRML importer handle proper unit selection. I have routinely run into the case where I go OpenSCAD -> Wings3D -> KiCad and design a model using mm in OpenSCAD because it makes for easier computations (all the datasheet values are nicely given in mm) and then have to apply a scaling factor of 0.3937 to all the axes in KiCad to make it the proper size because we seem to have a hardcoded assumption about what unit system the VRML file is in.
In fact, the KLC says: WRL files do not specify absolute dimensions. KiCad normalizes model parameters to units of inches and the internal units (dimensionless) of the WRL model must be scaled accordingly. -Ian On Tue, Sep 29, 2020 at 4:50 PM Seth Hillbrand <s...@kipro-pcb.com> wrote: > There has been some discussion to removing the scale option here > altogether. The logic being that if you need the model scaled, you should > be doing this in your solid CAD not in your electronic CAD. I have come > around to this idea and it might be worth implementing rather than doing > the scale limiting. > > -Seth > > On Tue, Sep 29, 2020 at 4:52 AM Mário Luzeiro <mrluze...@ua.pt> wrote: > >> Hi all, >> >> I'm wondering if it is safe to limit the scale of shapes to be positive >> values? >> >> Applying negative scales will cause inverted shapes and render issues on >> the models. >> >> Could be that anyone in the world is using negative scale values? >> or should be safe to limit it? >> >> This is related with this issues: >> https://gitlab.com/kicad/code/kicad/-/issues/5817 >> >> Mario >> _______________________________________________ >> 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 >> > > > -- > [image: KiCad Services Corporation Logo] > Seth Hillbrand > *Lead Developer* > +1-530-302-5483 <+12126039372> > Davis, CA > www.kipro-pcb.com i...@kipro-pcb.com > _______________________________________________ > 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 >
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