New Blender Importer/Exporter for Blender 2.82

[Jose Alfonso]

I forgot to say that I used Blender 3.2.1.

[Matthew Morrison]

I forgot to say that I used Blender 3.2.1.

Try now. That python error was a logic error on my part. I've added an LDraw panel to simplify export. I will add more detailed instructions soon.

https://github.com/cuddlyogre/ExportLDra...2-07-31-00

[Jose Alfonso]

Try now. That python error was a logic error on my part. I've added an LDraw panel to simplify export. I will add more detailed instructions soon.

https://github.com/cuddlyogre/ExportLDra...2-07-31-00

When I enable the new script:

Code:

addon_utils.disable: ExportLDraw-2022-07-31-00 not disabled
Modules Installed (ExportLDraw-2022-07-31-00) from 'C:\\Users\\JA\\Documents\\ExportLDraw-2022-07-31-00.zip' into 'C:\\Users\\JA\\AppData\\Roaming\\Blender Foundation\\Blender\\2.83\\scripts\\addons'
[Errno 2] No such file or directory: 'C:\\Users\\JA\\AppData\\Roaming\\Blender Foundation\\Blender\\2.83\\scripts\\addons\\ExportLDraw-2022-07-31-00\\config\\ImportOptions.json'
Traceback (most recent call last):
  File "C:\Program Files\blender-2.83\2.83\scripts\modules\addon_utils.py", line 351, in enable
    mod = __import__(module_name)
  File "C:\Users\JA\AppData\Roaming\Blender Foundation\Blender\2.83\scripts\addons\ExportLDraw-2022-07-31-00\__init__.py", line 56, in <module>
    _modules_loaded = [_namespace[name] for name in _modules]
  File "C:\Users\JA\AppData\Roaming\Blender Foundation\Blender\2.83\scripts\addons\ExportLDraw-2022-07-31-00\__init__.py", line 56, in <listcomp>
    _modules_loaded = [_namespace[name] for name in _modules]
KeyError: 'operator_panel_ldraw'

[Matthew Morrison]

When I enable the new script:

Code:

addon_utils.disable: ExportLDraw-2022-07-31-00 not disabled
Modules Installed (ExportLDraw-2022-07-31-00) from 'C:\\Users\\JA\\Documents\\ExportLDraw-2022-07-31-00.zip' into 'C:\\Users\\JA\\AppData\\Roaming\\Blender Foundation\\Blender\\2.83\\scripts\\addons'
[Errno 2] No such file or directory: 'C:\\Users\\JA\\AppData\\Roaming\\Blender Foundation\\Blender\\2.83\\scripts\\addons\\ExportLDraw-2022-07-31-00\\config\\ImportOptions.json'
Traceback (most recent call last):
  File "C:\Program Files\blender-2.83\2.83\scripts\modules\addon_utils.py", line 351, in enable
    mod = __import__(module_name)
  File "C:\Users\JA\AppData\Roaming\Blender Foundation\Blender\2.83\scripts\addons\ExportLDraw-2022-07-31-00\__init__.py", line 56, in <module>
    _modules_loaded = [_namespace[name] for name in _modules]
  File "C:\Users\JA\AppData\Roaming\Blender Foundation\Blender\2.83\scripts\addons\ExportLDraw-2022-07-31-00\__init__.py", line 56, in <listcomp>
    _modules_loaded = [_namespace[name] for name in _modules]
KeyError: 'operator_panel_ldraw'

I accidentally pushed a release that was missing a file. Please download the most current release again and tell me if you are still getting the error.

[Jose Alfonso]

I accidentally pushed a release that was missing a file. Please download the most current release again and tell me if you are still getting the error.

It works. In the LDraw panel I have checked "Export polygons" to export a part. Blender system console still shows an error about "config\\ImportOptions.json". And when exporting it just says "list index out of range" before the text "Export complete".

I miss the lines type 2 and 5 in the exported part. For type 2 I will use the edges of two faces whose normals are more than 30º apart (same value as EdgeSplit Modifier). Type 5 would be the rest of the edges: the two first points are from the edge and the other two are the other vertex of the faces (triangle) or just choose between two (quadrilateral).

[Matthew Morrison]

It works. In the LDraw panel I have checked "Export polygons" to export a part. Blender system console still shows an error about "config\\ImportOptions.json". And when exporting it just says "list index out of range" before the text "Export complete".

I miss the lines type 2 and 5 in the exported part. For type 2 I will use the edges of two faces whose normals are more than 30º apart (same value as EdgeSplit Modifier). Type 5 would be the rest of the edges: the two first points are from the edge and the other two are the other vertex of the faces (triangle) or just choose between two (quadrilateral).

If you mark an edge sharp, it will export as line type 2. I'll see if I can make it work automatically like you suggested.

There is no line type 5 handling at the moment, mostly because Blender doesn't have any good way to display them. I'll try what you suggested with them too.

[Ming Zhang]

I export the monkey-head.blender, but the ldr file only have 140byte. Partdesigner can open the ldr file, but there's nothing in it.

please tell me where's wrong. thx

[Matthew Morrison]

I export the monkey-head.blender, but the ldr file only have 140byte. Partdesigner can open the ldr file, but there's nothing in it.

please tell me where's wrong. thx

It sounds like you’re not exporting as geometry. 

 Would you mind sharing the blend file you’re working with? Or share a screenshot of your export settings?

[Matthew Morrison]

So can this export a model as a .ldr file or only single parts and if it can what setup is required? I'm asking because the README file didn't seem to say how only that you could export but didn't say exactly what! I would appreciate any information you can provide me!

It’s possible to export ldr files and parts, but the workflow is a bit unrefined. I’ll put together a video explaining how to do common tasks and post a link here when it’s done.

[Sam Potter]

when i try to export a imported ldraw file I get this error

Python: Traceback (most recent call last):
  File "C:\Users\*\AppData\Roaming\Blender Foundation\Blender\3.4\scripts\addons\ExportLDraw-2023-02-02\operator_export.py", line 124, in execute
    ldraw_export.do_export(bpy.path.abspath(self.filepath))
  File "C:\Users\*\AppData\Roaming\Blender Foundation\Blender\3.4\scripts\addons\ExportLDraw-2023-02-02\ldraw_export.py", line 54, in do_export
    ldraw_file.parse_header(hline)
AttributeError: 'LDrawFile' object has no attribute 'parse_header'

[Matthew Morrison]

when i try to export a imported ldraw file I get this error

Python: Traceback (most recent call last):
  File "C:\Users\*\AppData\Roaming\Blender Foundation\Blender\3.4\scripts\addons\ExportLDraw-2023-02-02\operator_export.py", line 124, in execute
    ldraw_export.do_export(bpy.path.abspath(self.filepath))
  File "C:\Users\*\AppData\Roaming\Blender Foundation\Blender\3.4\scripts\addons\ExportLDraw-2023-02-02\ldraw_export.py", line 54, in do_export
    ldraw_file.parse_header(hline)
AttributeError: 'LDrawFile' object has no attribute 'parse_header'

I've pushed a fix. Please update to the newest version and let me know if it is still happening.

https://github.com/cuddlyogre/ExportLDra...2023-02-09

[Sam Potter]

I've pushed a fix. Please update to the newest version and let me know if it is still happening.

https://github.com/cuddlyogre/ExportLDra...2023-02-09

thanks for the quick fix it works, but the orientation of the pieces don't stay

[Matthew Morrison]

thanks for the quick fix it works, but the orientation of the pieces don't stay

Would you mind sharing the blend file file you are working with so that I can troubleshoot?

[Sam Potter]

Would you mind sharing the blend file file you are working with so that I can troubleshoot?

thanks for your quick response. I dont think it's specific to any blend file but if you want here it is.

fyi, if the "Active Object" is a ldraw object it exports screwy

[Matthew Morrison]

thanks for your quick response. I dont think it's specific to any blend file but if you want here it is.

fyi, if the "Active Object" is a ldraw object it exports screwy

Please try the new release.
https://github.com/cuddlyogre/ExportLDra...3-02-11-02

I'm going to write up a proper tutorial eventually, but here is a basic checklist for exporting.

Make sure all your objects are set to -90,0,0 rotation and color code is filled in in the LDraw panel.
In the LDraw panel, make sure your active object has all of its header lines filled in.
If Export polygons is not checked, make sure the filename is filled out for the object.

[Sam Potter]

Please try the new release.
https://github.com/cuddlyogre/ExportLDra...3-02-11-02

I'm going to write up a proper tutorial eventually, but here is a basic checklist for exporting.

Make sure all your objects are set to -90,0,0 rotation and color code is filled in in the LDraw panel.
In the LDraw panel, make sure your active object has all of its header lines filled in.
If Export polygons is not checked, make sure the filename is filled out for the object.

it seems to be fixed. thanks a lot

[Matthew Morrison]

it seems to be fixed. thanks a lot

Thank you for reporting the bug! This part of the plugin really benefited from it.

[Sam Potter]

can you add the ability to export edges?