Main changes:
- dynamic creation of idiomatic python fields corresponding to ASSIMP ones,
- hidding of pointers,
- use of numpy for transformation and mesh data storage
For instance, to access the list of meshes of a children of the root
node, previously we did:
scene.mRootNode.contents.mChildren[1].contents.mMeshes
Now, it is:
scene.rootnode.children[1].meshes
Arrays are now regular Python list.
Also added a 'post-processing' to access directly to certain objects,
and not through their index. For instance:
Before:
mymesh_id = scene.mRootNode.contents.mChildren[1].contents.mMeshes[2]
mymesh = scene.mMeshes[mymesh_id]
Now:
scene.rootnode.children[1].meshes[2]
Initialization of the Python wrappers is not delayed anymore: everything
is done during the loading (which leads to long start time, but prevent
unexpected slowing at runtime)
This commit also remove several 'ad-hoc' manipulation that should not
be needed anymore.
While here, use Python logging when necessary.
This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.
PyAssimp Readme
---------------
-- a simple Python wrapper for Assimp using ctypes to access
the library. Tested for Python 2.6. Known not to work with
Python 2.4.
Note that pyassimp is by no means considered mature. It works,
but it is far away from wrapping Assimp perfectly.
USAGE
=====
To get started with pyAssimp, examine the sample.py script, which
illustrates the basic usage. All Assimp data structures are
wrapped using ctypes. All the data+length fields in Assimp's
data structures (such as 'aiMesh::mNumVertices','aiMesh::mVertices')
are replaced by simple python lists, so you can call len() on
them to get their respective size and access members using
[].
For example, to load a file named 'hello.3ds' and print the first
vertex of the first mesh, you would do (proper error handling
substituted by assertions ...):
> from pyassimp import pyassimp, errors
>
> try:
> scene = pyassimp.load('hello.3ds')
> except AssimpError, msg:
> print(msg)
> return
> assert len(scene.meshes)
> mesh = scene.meshes[0]
> assert len(mesh.vertices)
> print(mesh.vertices[0])
> # don't forget this one, or you will leak!
> pyassimp.release(scene)
INSTALL
=======
PyAssimp requires a assimp dynamic library (DLL on windows,
so on linux :-) in order to work. The default search directories
are:
- the current directory
- on linux additionally: /usr/local/lib
To build that library, refer to the Assimp master INSTALL
instructions. To look in more places, edit ./pyassimp/helper.py.
There's an 'additional_dirs' list waiting for your entries.
7000ea05c5