trimesh | Python library for loading and using triangular meshes | Service Mesh library
kandi X-RAY | trimesh Summary
kandi X-RAY | trimesh Summary
Trimesh is a pure Python (2.7-3.4+) library for loading and using triangular meshes with an emphasis on watertight surfaces. The goal of the library is to provide a full featured and well tested Trimesh object which allows for easy manipulation and analysis, in the style of the Polygon object in the Shapely library. The API is mostly stable, but this should not be relied on and is not guaranteed: install a specific version if you plan on deploying something using trimesh. Pull requests are appreciated and responded to promptly! If you'd like to contribute, here is an up to date list of potential enhancements although things not on that list are also welcome. Here are some tips for writing mesh code in Python.
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Top functions reviewed by kandi - BETA
- Read mesh data into numpy arrays .
- Convert DXF file to trimesh entities .
- Load a 3D scene from a 3D file .
- Export a DXF file .
- Loads Materials Materials from a file - like object .
- Export a 3D mesh .
- Slice a list of faces .
- Load a 3D mesh .
- Make a mesh on a plane .
- Convert a PLY element into a dictionary .
trimesh Key Features
trimesh Examples and Code Snippets
Lines of Code : 78License : Permissive (BSD-3-Clause)
Copyauto vertBatch = gl::VertBatch::create();
vertBatch->begin( GL_POINTS );
for( auto p : mPoints ) {
vertBatch->vertex( p );
}
vertBatch->draw();
auto trimesh = TriMesh();
// we first add 3 positions to the TriMesh
trimesh.appendPosition( points_3d = [
(0., 0., 0.), (0., 0., 1.), (0., 1., 0.),
(1., 0., 0.), (1., 1., 0.), (1., 0., 1.),
(0., 1., 1.), (1., 1., 1.), (.25, .5, .5),
(.5, .25, .5), (.5, .5, .25), (.75, .5, .5),
(.5, .75, .5), (.5, .5, .75)
]
fig = plt.fi >>> import skeletor as sk
>>> mesh = sk.example_mesh()
>>> fixed = sk.pre.fix_mesh(mesh, remove_disconnected=5, inplace=False)
>>> skel = sk.skeletonize.by_wavefront(fixed, waves=1, step_size=1)
>>> skel
# Package
import trimesh
myobj = trimesh.load_mesh("tank.stl", enable_post_processing=True, solid=True) # Import Objects
myobj.show()
print(myobj.faces)
pip install trimesh[easy]
pip install trimesh[all]
$ pip install pip --upgrade
$ pip install setuptools --upgrade
input1 = vtk.vtkPolyData()
input2 = vtk.vtkPolyData()
input1.DeepCopy(Data1.GetOutput())
input2.DeepCopy(Data2.GetOutput())
# Append the two meshes
appendFilter = vtk.vtkAppendPolyData()
appendFilter.AddInputData(input1)
appendFilter.#this function to create a rotation matrix was taken from https://stackoverflow.com/q/63525482/6010071
def rotation_matrix_from_vectors(vec1, vec2):
a, b = (vec1 / np.linalg.norm(vec1)).reshape(3), (vec2 / np.linalg.norm(vec2)).reshappaths = inner.section(plane_origin=origin, plane_normal=norm)
# find the closed path entity with a centroid nearest to the plane origin
nearest, idx = _find_nearest_closed_path(origin, paths)
face_adjacency = trimesh.graph.face_adjacency(iimport numpy as np
import trimesh
import pyrender
import matplotlib.pyplot as plt
fuze_trimesh = trimesh.load('examples/models/fuze.obj')
mesh = pyrender.Mesh.from_trimesh(fuze_trimesh)
scene = pyrender.Scene()
scene.add(mesh)
camera = pyrCommunity Discussions
Trending Discussions on trimesh
QUESTION
I have a plane mesh. I just click on mesh -> create trimesh collision sibling
Then, I have a collision shape (concave polygon) and if i adding kinematicBody3d, or StaticBody3d, or RigidBody3d, etc. These objects are sliding (moving) on a surface (or not)
added object:
after a few seconds
but if I change collision shape mode, it will work correctly
...ANSWER
Answered 2021-Dec-15 at 09:22Rigid bodies are effected by physics. To control this, there are several paramters. What I think you might be looking for is the linear damp property
If you set it to 60, you should stop the object in one frame
QUESTION
Solved using sudo pip install -U
So when I do pip list --outdated I get:
ANSWER
Answered 2021-Oct-17 at 20:08See this, and as you can guess the problem here is Defaulting to user installation because normal site-packages is not writeable which relates to some permission related issues which I am not sure of.
You can use here python3 -m pip install -U .
A stable solution could be to reinstall python from scratch in your system.
QUESTION
Update 14-SEP-2021: Simplified problem even further to a smaller MRE. After some analysis, it doesn't seem Qt threading is the culprit, so corresponding Qt code was removed.
pyvistadoes not plot my volume along the correct axis and the output is garbled.ParaViewon the other hand plots things properly. How can I fix this?(NOTE: I cannot share the actual data because it is confidential. However, below you can see
pyvistaorients my data along thez-axis, when in fact it should be along thex-axis, and that it is garbled. I show the bounding box in ParaView.The results are the same regardless if I use the
fixed_pointvs.smartvolume mappers. I usefixed_pointsince I am on Windows.)
pyvista:
ParaView:
Plotting volumes in
pyvistais much slower than inParaView. Is there some way I can make this faster?The time for my code with
...pyvistavs.ParaViewis
ANSWER
Answered 2021-Sep-16 at 17:40In pyvista version 0.32.1, the lines of code in pyvista/plotting/plotting.py function add_volume here are problematic:
QUESTION
I would like to make a collision detector for a mesh I have imported from blender. The mesh is parented to a skeleton, which I use to deform the mesh. I would like to attach a collider to it in order to implement physics. Instead of attaching a general shape collider like a cube or sphere to the mesh, I want it to be an accurate copy of the mesh itself. I've tried adding a Trimesh Static Body, which does make a collider the same shape as the mesh, however since it's static, it won't deform with a skeleton. Is there a way to generate a collider the same shape as a mesh that would deform with a skeleton and also stay with the mesh as it moves around?
...ANSWER
Answered 2021-Aug-27 at 22:13You can make a collider the same shape as a skeleton / mesh that is deformed by a skeleton by using the BoneAttachement node, which is a subcategory of the Spatial class. By using this node, you can attach a primitive shape collider to each bone in your skeleton. This will result in a mostly accurate collider shape made up of many smaller colliders that will deform and stay with the skeleton.
Step 1:
Add a BoneAttachment node as a child of the Skeleton node in your model. Set the bone name property to whatever bone you would like the collision shape to follow. After this is done, any nodes parented to this BoneAttachment node will copy the transform of the bone which it is set to.
Step 2:
Add either a KinematicBody or an Area node as a child of the BoneAttachment node. Don't add a RigidBody, because they're meant to be controlled by physics only, so this won't work if you add it.
If you add a
KinematicBodynode, your collider won't be affected by physics, but other objects like aRigidBodywill still collide and bounce off of it.If you add an
Areanode, your collider won't directly affect any physics objects that come into contact with it (objects will pass right through it), but you can write a script that will cause some effect to happen when objects contact it. For example, you could make it so that when an object enters the area, a force is applied to it and it gets pushed away.
Step 3:
Add a CollisionShape node as a child of whatever PhysicsBody you chose in the last step. Choose the shape and configure its transform so it copies the shape of the part of the mesh you are working on. Then, repeat these steps for each bone of the skeleton until you have an accurately shaped collider.
QUESTION
I am looking for help building pyembree from source with CMake for Windows. Further details for the history of this question are listed here on GitHub. Windows support for pyembree on conda-forge was just removed, so any help that can be provided would be much appreciated!
Tested on:
OS: Windows 10 x64 Professional, Build 1909 Python: 3.8.10
Steps- Install Microsoft Visual C++ 14.X and Windows 10 SDK. These are required for building
cythoncode.
(NOTE: The version of Microsoft Visual Studio is not the same as the version of Microsoft Visual C++. Visual Studio 2015, 2017, and 2019 all have MSVCv14X build tools. At the time of this writing, installing the Visual Studio 2019 Build Tools with
MSVCv142 - VS 2019 C++ x64/x86 build toolsandWindows 10 SDK (10.0.18362.0)components will suffice (select the
Desktop development with C++Workload if installing Visual Studio 2019).
- Install vcpkg in
C:\\vcpkgand add the path to yourSystem Environment Variables:
ANSWER
Answered 2021-Aug-01 at 17:24CMake is actually not required. For complete instructions, please see my solution on Install pyembree on Windows without Conda #468.
QUESTION
I was wondering if you have used the library "trimesh" in python. It looks quite useful, but right now im having some trouble with the method "Trimesh.spli()" on the last line of the code attached. the code was working fine up to that line, which is suppose to return a list of trimesh objects.
However, when I try to run this code, I get the error ImportError: no graph engines available! Do you know how can I set up a graph engine? or if there is any turnaround this issue? Thanks for your support, Regards
...ANSWER
Answered 2021-May-08 at 03:03I found the issue. The library does not install all dependancies unless you ask for it. Usually, it only requires numpy.
One option to install most of the dependancies is:
QUESTION
I have a model in .glb format with nothing edit(but a mesh) in the scene. How do I apply a material of a glb/gltf mesh using Python? I am using Pygltflib and Trimesh although I can use other libraries.
...ANSWER
Answered 2021-Feb-11 at 09:12I can only give a genereal answer, because you did not provide any code, but you would do it like this in principal:
QUESTION
when I use anaconda python I can install this requirements.txt with no problem using pip install -r requirements.txt however, when I use venv, I get this error. Do you know how I can fix it? https://pastebin.com/raw/9eUc7H9x
...ANSWER
Answered 2021-Jan-07 at 00:02$ pip install pip --upgrade
$ pip install setuptools --upgrade
QUESTION
I'm a wee bit stuck.
I have a 3D point cloud (an array of (n,3) vertices), in which I am trying to generate a 3D triangular mesh from. So far I have had no luck.
The format my data comes in:
- (x,y) values in regularly spaced (z) intervals. Think of the data as closed loop planar contours stored slice by slice in the z direction.
- The vertices in my data must be absolute positions for the mesh triangles (i.e. I don't want them to be smoothed out such that the volume begins to change shape, but linear interpolation between the layers is fine).
Illustration:
...ANSWER
Answered 2020-Sep-04 at 06:49Actually there are two ways of having meshlab functionality in python:
- The first is MeshLabXML (https://github.com/3DLIRIOUS/MeshLabXML ) a third party, is a Python scripting interface to meshlab scripting interface
- the second is PyMeshLab (https://github.com/cnr-isti-vclab/PyMeshLab ) an ongoing effort done by the MeshLab authors, (currently in alpha stage) to have a direct Python bindings to all the meshlab filters
QUESTION
I'm totally new to this field, I'm using python and Trimesh to create a 3D model of a bone and I need to figure out how can I create or represent the thickness of the bone I only have surface of the bone which is ok, but I need also to represent how the bone looks inside this surface, Anyone has a clue on how to approach this problem?
Ask me if you need more information, I'm not sure what you need to know to understand the problem.
Thanks in advance.
...ANSWER
Answered 2020-Jul-02 at 14:15Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install trimesh
Here is an example of loading a mesh from file and colorizing its faces. Here is a nicely formatted ipython notebook version of this example. Also check out the cross section example or possibly the integration of a function over a mesh example.
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