Script to export all object locations [help]

Coding Python Support
1

Hi,

I am working on using blender as part of a pipeline for game work flow to go from prototyping in blender to building in Panda3D.

One thing that would speed up the process is if I could export a text file from blender that was possibly xml and had something like the following:

<object>
<name>
cube
</name>
<LocX>
0
</LocX>
<LocY>
0
</LocY>
<LocZ>
0
</LocZ>
<RotX>
0
</RotX>
<RotY>
0
</RotY>
<RotZ>
0
</RotZ>
<ScaleX>
1
</ScaleX>
<ScaleY>
1
</ScaleY>
<ScaleZ>
1
</ScaleZ>
<DimX>
2
</DimX>
<DimY>
2
</DimY>
<DimZ>
2
</DimZ>
</object>

Then do that for all objects in a scene. If anyone has an example of a system similar to this working, hell it could be structured:
Object: Cube
Loc(0,0,0)
Rot(0,0,0)
Scale(1,1,1)
Dim(2,2,2)

Whatever, doesn’t matter to me, I would just like to see an example I can play with and bastardize if someone can help, it would be much appreciated. I need to also get all light/camera info as well.

Thanks!
ZM

2

yeah, something like that would be immensely helpful to me also, but unfortunately I’ve no idea where to even begin, as I’m fairly new to blender

3

How these objects are set to that scene?
Is the scene build-up from the x*x size tiles, which are set side by side?

4

@Xjazz,

I’m not sure what the first part of your question is…but I’ll show you a real world example of my problem…scene from BGE:

http://minimustard.com/screen_shot_3.jpg

My closest quick approximation in panda3D:

http://minimustard.com/panda_screen_shot.jpg

So, the background of my scene is just one mesh, but I need a script to give me camera/light locations as well. Obviously the location won’t translate perfectly to Panda, however, if they are all relative to eachother, I can parse and build the .py to use in panda appropriately. I just need that relative location, and an automated way of doing it.

I hope that helps, it’s kind of hard to explain how I’m building it without writing an essay :slight_smile:

Thanks!
ZM

5

Do you want all objects in a scene or only those selected? Im just looking at the api, and it has everything you want… So I may be able to get everything you want printed in the terminal but I have no idea about how to get it in a txt file in python, but it would just mean copy and paste for you… is that ok?

6

@mandoragon –

I’d like to get everything in the scene, that way I can just omit objects that I don’t need, instead of reloading the scene to find things I missed. Also, I’m not actually sure how to view the terminal for blender on mac, do I just have to launch it from the terminal (never had a need to). But that copy/paste would be fine if you could explain how to do it.

7

When windows opens blender we have a consol/terminal where all the debugging comes back through…

What mac Os are you on atm?

8

10.5.8 I have tried doing an open /Applications/blender/blender.app, but that launches it with no console to be found.

9

Right, could you please follow this tutorial: http://blenderartists.org/forum/showpost.php?p=1267071&postcount=15

Im on my mac atm and it works. Tell me how you do…

10

Im just writing the script for you now, done half…

11

Awesome tip, got a console now :slight_smile:

Thanks much!

12

See how you find this, not sure exactly what dim was, Im guessing dimensions so maybe the bounding box or something of it…

Anyways heres the code:

import Blender

objects = Blender.Scene.GetCurrent().getChildren()

for s in objects:
	print 'Type:', s.getType(), '
' 'Object Name:', s.getName()
	print 'Scale:', s.getSize(), '
' 'Loc:', s.getLocation() 
	print 'RotX:', s.RotX, 'RotY:', s.RotY, 'RotZ:', s.RotZ, '
'

And heres an example of it working with the output:

http://i264.photobucket.com/albums/ii163/sycren/example.png
example.png1022×484

Please tell me what you think and how it works for you

13

Thanks so much mandoragon! That works awesome! I know enough python to be able to get this out to a text file, I think, but the console window will be great for debugging my mistakes as I figure out blender’s functions.

You’re a hero!
ZM

14

For Laethyn and others who might be searching for this in the future, here’s what I did:

import Blender
import bpy

def write(filename):
    out = file(filename, "w")
    objects = Blender.Scene.GetCurrent().getChildren()
    for s in objects:
        out.write('Type:' + s.getType() + '
' 'Object Name:' + s.getName() + 
        '
' 'Scale:' + str(s.getSize()) + '
' 'Loc:' + str(s.getLocation()) + 
        '
' 'RotX:' + str(s.RotX) + 'RotY:' + str(s.RotY) + 'RotZ:' + 
        str(s.RotZ) + '

')        
        
Blender.Window.FileSelector(write, "Export")

Works great! I used the terminal window for debugging a few of syntax errors I made, but now I can just open blender normally and run this without forcing a resolution.

(edited to not break the div)

15

Glad I could help, maybe you should add this to the python script respository…