@wwwslinger another alternative would be to simplify the mesh while enforcing constraints on its surface. You can use the "Decimate" function of MeshLabServer for this.
@mikedh It used to work with visible=False, but stopped since I installed some python packages. The platform is the same as before, so this isn't the issue. I've tried to identify which python package broke the mesh-image generation, but in vain.
@science-code I can seem to find Decimate in there, just ParaDecimate -- is that the same? Do you have link to an example perhaps?
You need to install meshlab for that work.
To change the number of triangles in the final mesh, edit the value on line 21:
<Param type="RichInt" value="2000" name="TargetFaceNum"/>
Those filters are just for cleaning the mesh.
Hi, I am looking for a simple way to solve this problem in python: I have a mesh of a roof. The real object is composed of planes intersecting at sharp angles. However, the mesh I have has several thousand faces. I am looking for a way to merge all adjacent faces whose normals are within a certain angle. In other words, I want to merge all nearly coplanar faces. Is there a trimesh way of doing this? I was looking at trimesh.grouping.group_vectors, but I don't know how to enforce connectivity and also I don't know how to merge the groups.
Hello all, I want to compute the mean/gaussian curvature over a mesh and I'm looking at the curvature.ipynb example with the following code:
But I don't really understand what the
discrete_gaussian_curvature_measure(mesh, mesh.vertices, r)/sphere_ball_intersection(1, r)But I don't really understand what the
sphere_ball_intersection(1,r) call is about... what exactly is this example showing? Can I use this to calculate curvature at every vertex for an arbitrary mesh? How would I know what value of r to use?
Hello. For my project, I need to measure the distance between two STL files. I wrote a script that allows reading the files, positioning them in relation to each other in the desired position . I saw the module Trimesh.collision because it looks like a mesh - mesh comparer . So I tried to use min_distance_single to "get the minimum distance between any pair of objects, one in each manager" but I receive and error like this
I tried to upload a mesh from a .stl file (ASCII) . I discover this library recently, is there a module that can make me discover the distance between those two objects? I also wrote the question here: https://stackoverflow.com/questions/61159587/measure-distance-between-meshes?noredirect=1#comment108198970_61159587
Hi, I am just wondering if anyone has any recommends as to how to create an interactive UI with trimesh. I want a user to be able to open a file containing multiple meshes, display the meshes and have the user select one. Currently, I can open the file and modify meshes and extract information and show meshes I'm just not sure how I would allow a user to select one. Any help would be much appreciated.
hey you might check out the glooey widget example: https://github.com/mikedh/trimesh/blob/master/examples/widget.py
Hi all! I have a problem where I need to take a mesh "A" and divide it into 3 smaller, seperate meshes. I am slightly overwhelmed by the documentation and I am not sure which trimesh functions should I be using for this task. I've discovered graph.Split() (which reduced the amount of original vertices..?), Submesh() or trimesh.remesh.Subdivide()
Also is the functionality available which allows to specify the number parts in which I want to subdivide my mesh? example 3, 4 or 5 equal parts?
Note that I don't know the entire API well, but as far as I know you have operations to:
- split a mesh based on adjacency (so, in "separate bodies"): https://trimsh.org/trimesh.base.html#trimesh.base.Trimesh.split
- split a mesh based on a cut plane: https://trimsh.org/trimesh.base.html#trimesh.base.Trimesh.slice_plane
- create a "submesh" from another mesh by indicating the faces to use: https://trimsh.org/trimesh.base.html#trimesh.base.Trimesh.submesh
This may be a silly question but, how do I create a hierarchy of nodes to be exported with GLTF? I know how to add meshes to a scene, but I don't know how to create a tree of nodes with or without meshes and with different local transforms (ideally also with "extra" custom metadata).
Does someone know how to do this with Trimesh, that can share or point me to an example?
This is the one: mikedh/trimesh#929
Also: mikedh/trimesh#812
I am currently using trimesh to create multi view snapshots of geometries. Unfortunately, after a while of calling the scene.save_image method a couple of times issues occur: a random ZeroDivisionError and a random Process exit.
After around 446 iterations python crashes completely and it returns 'Process finished with exit code -1073740771 (0xC000041D)' Here the exit codes are different every time.
I do not see the memory/CPU/GPU statistics blowing up in the task manager.
Is there any reason why I cannot scene.set_camera from scene.camera ?
I'm trying to do something like this:
mesh = trimesh.load_mesh(in_fname, process=False)
scene_A = trimesh.Scene(mesh)
scene_B = trimesh.Scene(mesh)
scene_A.show() # play with the camera
scene_B.set_camera(**scene_A.camera)If scence_A.camera was a dict and the parameters of set_camera where matching the elements of this dict. This would work. My question is how can I get the parameters of the camera so that I can pass them to set_camera. I've the feeling that scene.camera misses some of the parameters required to properly set the camera using set_camera
Hello, is there a way how to display text (digits) in opengl window? When I add text entity to path, I can see it in Path2D.show(). But when I create Path3D I see no text. Is there any workaround? Creating Path2D for each digit, extrude it and add to scene is quite hardcore solution. Thanks for help
i need a help please
i want to flip obj vectors or faces does trimesh allow that ?
note i know nothing about the library