Re: Simple 2-body URDF fails to load in pyBullet

2020-10-13T21:15:07+00:00

I am able to load the urdf, but since there are no visual elements to the links, nothing appears in the gui.
Your script works for me but since there is no main loop, it initializes the gui, loads the robot, then exits. When I add a while loop, it leaves the GUI open, and looks ok

Statistics: Posted by jwhitman — Tue Oct 13, 2020 9:15 pm

Simple 2-body URDF fails to load in pyBullet

2020-09-22T16:52:50+00:00

I'm new to pyBullet. I have a simple 2 body URDF that passes the "check_urdf" test. It also has the expected "urdf_to_graphiz" output. However, when I run a simple python script to load it pyBullet fails to load the URDF.

Code:

(pyBullet) :$ lsb_release -aNo LSB modules are available.Distributor ID: UbuntuDescription:    Ubuntu 20.04.1 LTSRelease:        20.04Codename:       focal(pyBullet) :$ uname -aLinux SEDACS29L 4.4.0-18362-Microsoft #476-Microsoft Fri Nov 01 16:53:00 PST 2019 x86_64 x86_64 x86_64 GNU/Linux

I'm running pyBullet 3.0.1.

My simple script is,

Code:

import pybullet as pimport pybullet_data as pdp.connect(p.GUI)p.setAdditionalSearchPath(pd.getDataPath())plane = p.loadURDF("plane.urdf")urdf = p.loadURDF("test.urdf",[0,0,1.0],  useFixedBase=False

The output of running this script is,

Code:

(pyBullet) :$ python test_load_urdf.py pybullet build time: Sep 14 2020 02:24:09startThreads creating 1 threads.starting thread 0started thread 0 argc=2argv[0] = --unusedargv[1] = --start_demo_name=Physics ServerExampleBrowserThreadFunc startedX11 functions dynamically loaded using dlopen/dlsym OK!X11 functions dynamically loaded using dlopen/dlsym OK!Creating contextCreated GL 3.3 contextDirect GLX rendering context obtainedMaking context currentGL_VENDOR=VMware, Inc.GL_RENDERER=llvmpipe (LLVM 10.0.0, 256 bits)GL_VERSION=3.3 (Core Profile) Mesa 20.0.8GL_SHADING_LANGUAGE_VERSION=3.30pthread_getconcurrency()=0Version = 3.3 (Core Profile) Mesa 20.0.8Vendor = VMware, Inc.Renderer = llvmpipe (LLVM 10.0.0, 256 bits)b3Printf: Selected demo: Physics ServerstartThreads creating 1 threads.starting thread 0started thread 0 MotionThreadFunc thread startedven = VMware, Inc.ven = VMware, Inc.numActiveThreads = 0stopping threadsThread with taskId 0 exitingThread TERMINATEDdestroy semaphoresemaphore destroyeddestroy main semaphoremain semaphore destroyedfinishednumActiveThreads = 0btShutDownExampleBrowser stopping threadsThread with taskId 0 exitingThread TERMINATEDdestroy semaphoresemaphore destroyeddestroy main semaphoremain semaphore destroyed

I'm completely stumped. The URDF is very simple.

Code:

What am I missing here?

Statistics: Posted by joehays — Tue Sep 22, 2020 4:52 pm

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Re: Simple 2-body URDF fails to load in pyBullet

Simple 2-body URDF fails to load in pyBullet