kicad-developers team mailing list archive

[Mário Luzeiro <mrluzeiro@xxxxx>]

Nice, 
I didn't mean to be parameters for the plugin, but just on relation what OCE options are available to you.
I think it is ok to have it internally fixed.

Mario
________________________________________
From: Cirilo Bernardo [cirilo.bernardo@xxxxxxxxx]
Sent: 10 March 2016 21:54
To: Mário Luzeiro
Cc: KiCad Developers
Subject: Re: [Kicad-developers] 3D plugin for STEP/IGES via OCE

Hi Mario,

 OCE has 2 basic form control parameters used in the tesselation:
deflection and deflectionAngle. These control the number of segments
in an arc and the max. error in NURBS surfaces. There are probably
a few more tolerance parameters but I don't know OCE well enough.

 Configuring plugin parameters is something I haven't addressed yet.
I can add a function to the plugin interface to ask kicad for the 3D
configuration directory and individual plugins can write default
configurations there, but in this case users need to read documentation
so they can adjust those parameters if necessary. Anyway, that would
be a good first step and in the future we might be able to add GUIs
for this task. Many plugins would require no configuration though and
the few that do wouldn't have many parameters. Since we don't
expect an overwhelming number of plugins, perhaps each class of
plugin (at the moment there is only the one class - 3DPlugin) could
have a single configuration file which holds the parameters for each
plugin type. Anyway, at the moment there is no urgent need for such
configuration since the defaults work well anyway. :)

- Cirilo


On Thu, Mar 10, 2016 at 8:57 PM, Mário Luzeiro <mrluzeiro@xxxxx<mailto:mrluzeiro@xxxxx>> wrote:
Excellent progress!

I believe it will need some discussion on how to integrate the dependency on OCE but hope a good compromise could be found.
It is good however that we got something to discuss.

What options does OCE offer you when convert the STEP to triangles? (i.e: on relation to quality/ detail of tesselation, materials, etc ?)

Mario
________________________________________
From: Kicad-developers [kicad-developers-bounces+mrluzeiro=ua.pt@xxxxxxxxxxxxxxxxxxx<mailto:ua.pt@xxxxxxxxxxxxxxxxxxx>] on behalf of Cirilo Bernardo [cirilo.bernardo@xxxxxxxxx<mailto:cirilo.bernardo@xxxxxxxxx>]
Sent: 10 March 2016 09:13
To: KiCad Developers
Subject: Re: [Kicad-developers] 3D plugin for STEP/IGES via OCE

Sorry, I doubled up on a link and missed the HackRF link:

https://drive.google.com/open?id=0By_XTJN-s8aXaTJidzZzOUhxWEk

- Cirilo

On Thu, Mar 10, 2016 at 8:11 PM, Cirilo Bernardo <cirilo.bernardo@xxxxxxxxx<mailto:cirilo.bernardo@xxxxxxxxx><mailto:cirilo.bernardo@xxxxxxxxx<mailto:cirilo.bernardo@xxxxxxxxx>>> wrote:
Hi folks,

 I have a 3D plugin built to support STEP and IGES visualization via OCE
and have linked 3 screenshots below.

https://drive.google.com/open?id=0By_XTJN-s8aXS1pKSE5uNVp0VG8
https://drive.google.com/open?id=0By_XTJN-s8aXclV4enBueWhnaGM
https://drive.google.com/open?id=0By_XTJN-s8aXclV4enBueWhnaGM

 The HackRF STEP model was created by Maurice via his KiCad StepUP
tools for FreeCAD.

 If people would like this plugin to be pushed into 3d_initial_merge then
let me know; I would need to add a CMake option to build it since it
depends on OCE and should not be built by default. Just remember that
these models will not be visible in 3DViewer until the current 3DViewer
has been replaced by one which uses the scenegraph objects from
3d_initial_merge.  Mario is making a lot of progress with his 3DViewer
branch, so hopefully it won't be too long before we have all the latest
3D visualization codes. :)

 One note: although the new 3D viewer will be able to directly use the
STEP/IGES models (no need to convert to VRML), actual MCAD
exports is still a long way away since it depends on the implementation
of a plugin system for reading and manipulating the PCB data itself.

 Thanks to Tom Wlostowski for the initial OCE investigations and his
sample c++ code for converting STEP to VRML.

- Cirilo