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pysdf's Issues

can't run

rosrun pysdf sdf2urdf.py plane.sdf plane.urdf
Traceback (most recent call last):
File "/home/afa/catkin_ws/src/pysdf/scripts/sdf2urdf.py", line 6, in
import pysdf
File "/home/afa/catkin_ws/devel/lib/python3/dist-packages/pysdf/init.py", line 34, in
exec(__fh.read())
File "", line 1, in
File "/home/afa/catkin_ws/src/pysdf/src/pysdf/parse.py", line 11, in
from tf.transformations import *
File "/opt/ros/noetic/lib/python3/dist-packages/tf/init.py", line 30, in
from tf2_ros import TransformException as Exception, ConnectivityException, LookupException, ExtrapolationException
File "/opt/ros/noetic/lib/python3/dist-packages/tf2_ros/init.py", line 38, in
from tf2_py import *
File "/opt/ros/noetic/lib/python3/dist-packages/tf2_py/init.py", line 38, in
from ._tf2 import *
ImportError: dynamic module does not define init function (init_tf2)

Colors not converted when defined in sdf files instead of the mesh file

I have a sdf file that defines the mesh and a red color the following way:

sdf file:

            <visual name='my_visual'>
                <pose frame=''>0 0 0 0 0 0</pose>
                <geometry>
                    <mesh>
                        <scale>1 1 1</scale>
                        <uri>model://package/meshes/file.stl</uri>
                    </mesh>
                </geometry>
                <material>
                    <ambient>1 0 0 1</ambient>
                    <diffuse>1 0 0 1</diffuse>
                    <specular>1 0 0 1</specular>
                </material>
            </visual>

converted file:

    <visual name="my_visual">
      <origin xyz="0 0 0" rpy="0 0 0"/>
      <geometry>
        <mesh filename="package://package/meshes/file.stl" scale="1 1 1"/>
      </geometry>
    </visual>

The urdf file does not have the color information. I had to define the color as a material and then add it after the sdf file is imported.

Color creation:

  <material name="red_color">
    <color rgba="1 0 0 1"/>
  </material>

Usage:

    <visual name="my_visual">
      <origin xyz="0 0 0" rpy="0 0 0"/>
      <geometry>
        <mesh filename="package://package/meshes/file.stl" scale="1 1 1"/>
      </geometry>
      <material name="red_color"/>
    </visual>

It would be nice for the converter to recognize the tag (maybe others too) and add the material creation and usage.

Does not generate urdf file

Hi!

I'm trying to use this piece of code to convert an SDF file to URDF. I run this in the command line:

$ rosrun pysdf sdf2urdf.py model.sdf model.urdf

and it shows the parsed tree in the terminal but it doesn't print anything.

Thanks for your help!
Nadia

limit Tag missing from joint. Aborting.

Hello,

I get the following console output from the program after and the process just hangs after that, does anyone have any solutions?

limit Tag missing from joint. Aborting.

pysdf error

Hi I am trying to covert frrom sdf file to urdf
and getting this error

eyup@eyup-FLEXDEX304:~/catkin_ws4/src/iq_sim/models/iris_base$ rosrun pysdf sdf2urdf.py model.sdf model.urdf
Traceback (most recent call last):
File "/home/eyup/catkin_ws4/src/pysdf/scripts/sdf2urdf.py", line 31, in
main()
File "/home/eyup/catkin_ws4/src/pysdf/scripts/sdf2urdf.py", line 17, in main
sdf = pysdf.SDF(file=args.sdf)
TypeError: init(): incompatible constructor arguments. The following argument types are supported:
1. pysdf.SDF(verts: numpy.ndarray[numpy.float32[m, 3], flags.c_contiguous], faces: numpy.ndarray[numpy.uint32[m, 3], flags.c_contiguous], robust: bool = True, copy: bool = True)

Invoked with: kwargs: file='model.sdf'

any idea to fix it?

cannot start program

Hi there,

I am getting the error

Traceback (most recent call last):
File "/Users/++++/pysdf/scripts/sdf2urdf.py", line 6, in
import pysdf
File "/Users/++++/opt/anaconda3/lib/python3.7/site-packages/pysdf/init.py", line 1, in
from parse import SDF, homogeneous2translation_quaternion, homogeneous2pose_msg, sdf2tfname, models_paths
ImportError: cannot import name 'SDF' from 'parse' (/Users/++++/opt/anaconda3/lib/python3.7/site-packages/parse.py)

Any idea on the cause?

ImportError: cannot import name 'SDF' from 'parse'

Hello,

I am a robotics student trying to use this code and I am running into a similar issue as another error listed, except I am using this in ROS and it was installed in my catkin_ws/src area. I am new to ROS and was hoping to see if you could help me understand what this error is and how to fix it if you have time. I know that anaconda/ROS don't play well and it seems to be trying to use the parse python module from anaconda instead of the parse.py provided in your package. Any help or guidance would be greatly appreciated, I tried googling but couldn't find cases like this one.

I am running ROS melodic on Ubuntu Bionic 18.04 and do have anaconda3 installed as well for other projects I am working on (non ROS). I have tried commenting out the anaconda3/bin file path in my .bashrc file but that doesn't seem to fix it either. Thank you once again for any help you can provide.

Kind regards,
Heather

Screenshot from 2020-11-22 10-13-31

sdf2urdf doesn't work

Hi! I'm trying to run sdf2urdf, but I'm getting the error:

Traceback (most recent call last):
File "/home/user/zephyr_ws/src/pysdf/scripts/sdf2urdf.py", line 6, in <module>
import pysdf
File "/home/user/zephyr_ws/devel/lib/python3/dist-packages/pysdf/__init__.py", line 34, in <module>
exec(__fh.read())
File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'parse'

The problem occurs either with or without using ROS. Do you have any idea to fix it, please?

cannot index file correctly

when I run command as followed, I find that cannot index the file that I want. what should I do to find this.

rosrun pysdf sdf2urdf.py /home/zsq/ROS/models/iris_with_standoffs_demo/model.sdf model.urdf
Error parsing SDF file /home/zsq/.gazebo/models/lunar_tranquillitatis_pit/model.sdf (XML or text declaration not at start of entity: line 2, column 0). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/lunar_tranquillitatis_pit/model-1_4.sdf (XML or text declaration not at start of entity: line 2, column 0). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/src_doorway/model.sdf (not well-formed (invalid token): line 761, column 12). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/submarine_sinking/model.sdf (not well-formed (invalid token): line 77, column 19). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/mpl_right_arm/model.sdf (XML or text declaration not at start of entity: line 16, column 0). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/submarine/model.sdf (not well-formed (invalid token): line 77, column 21). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/submarine_buoyant/model.sdf (not well-formed (invalid token): line 77, column 19). Ignoring model and continuing.
Error parsing SDF file /home/zsq/.gazebo/models/mpl_right_forearm/model.sdf (XML or text declaration not at start of entity: line 16, column 0). Ignoring model and continuing.
Failed to find included model (URI: iris_with_standoffs)
Failed to include model, see previous errors. Aborting.

what should I do to fix this problem?

sdf2urdf.py error

paresh@paresh-VirtualBox:/Robocon2018/robots$ rosrun pysdf sdf2urdf.py Robocon2018.sdf robocon2018.urdf
Traceback (most recent call last):
File "/home/paresh/catkin_ws/src/pysdf/scripts/sdf2urdf.py", line 31, in
main()
File "/home/paresh/catkin_ws/src/pysdf/scripts/sdf2urdf.py", line 17, in main
sdf = pysdf.SDF(file=args.sdf)
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 162, in init
self.from_file(kwargs['file'])
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 180, in from_file
self.world.from_tree(root, version=self.version)
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 211, in from_tree
self.models += [Model(tree=model_node, version=self.version) for model_node in node.findall('model')]
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 285, in init
self.from_tree(kwargs['tree'], **kwargs)
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 348, in from_tree
self.joints = [Joint(self, tree=joint_node) for joint_node in node.iter('joint')]
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 602, in init
self.from_tree(kwargs['tree'])
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 625, in from_tree
super(Joint, self).from_tree(node)
File "/home/paresh/catkin_ws/src/pysdf/src/pysdf/parse.py", line 270, in from_tree
self.name = node.attrib['name']
KeyError: 'name'
paresh@paresh-VirtualBox:
/Robocon2018/robots$

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