kicad-developers team mailing list archive

[jean-pierre charras <jean-pierre.charras@...>]

Milan Horák a écrit :
> Hello Dick,
>
> but C:\Program Files\kicad\share\modules\packages3d\discret does not 
> work, but C:\Program Files\kicad\modules\packages3d\discret works.
>
> Is that OK?
>
>
> Question for Jean-Pierre: in Wings3D resistor.wings is 10 grid squares 
> long, but in pcbnew R4 is approx 8 grid suares long (1/10"grid) - 10mm 
> (4/10").
>
> In discret.mod there is this definition:
>
> Na "discret/resistor.wrl"
> Sc 0.400000 0.400000 0.400000
> Of 0.000000 0.000000 0.000000
> Ro 0.000000 0.000000 0.000000
>
> Sc is for scale 0.4
> Of is for offset
> Ro is for rotation
>
> It means then that resistor.wings model is 1" long.
> And all models (R3, R4, R5, R6 and R7) are created only by scaling the 
> default model.
>
> Do I understand all of it the right way? Do I miss something?
This is the right way.
And a lot of footprints uses this feature (capacitors, smd footprints 
...).
This feature spares a lot of time to create a footprint + its 3D shape.
And you can use more than one 3D shape.
This is usefull to add a heat sink 3D shape to a power transistor 3D 
shape, or an i.c. shape to an i.c. socket for instance
( one can adjust the second 3D shape scale, orientation and position 
offset to do that)
> Got one problem - nice, realistic and smooth (one color without color 
> stripes) resistor.wrl is 140kB - can it be so or is it too much?
>
> Milan
on my computer, resistor.wr l (one color without color stripes) is 20kB, 
but a nice and realistic shape can grow...
.wrl files are in ascii format, so they can be large for a realistic and 
beautifull shape.

--

Jean-Pierre CHARRAS

Maître de conférences
Directeur d'études 2ieme année.
Génie Electrique et Informatique Industrielle 2
Institut Universitaire de Technologie 1 de Grenoble
BP 67, 38402 St Martin d'Heres Cedex

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