[error] [CreateToPointCloud2Msg] Width and Step sizes must be greater than 0

[mvanlobensels]

Hi @neka-nat,

I have created the following simple ROS node to convert from a PointCloud2 to a Cupoch point cloud back to PointCloud2. This is based on your latest python example to convert from Cupoch to PointCloud2, however using the unchanged pointcloud does not work:

class PointCloudFilter:

    def __init__(self):
        self._point_cloud_sub = rospy.Subscriber('/camera1/depth/color/points', PointCloud2, self.point_cloud_callback)
        self._filtered_point_cloud_pub = rospy.Publisher('/camera1/depth/color/filtered', PointCloud2, queue_size=1)

    def point_cloud_callback(self, msg):
        pointcloud = cph.io.create_from_pointcloud2_msg(msg.data, cph.io.PointCloud2MsgInfo.default(msg.width, msg.point_step))

        data, info = cph.io.create_to_pointcloud2_msg(pointcloud)

if __name__ == '__main__':
    rospy.init_node('point_cloud_filter')
    filter = PointCloudFilter()
    rospy.spin()

However, this results in the following error:
[error] [CreateToPointCloud2Msg] Width and Step sizes must be greater than 0.

This is running on my laptop (x86_64), Python 3.6.9, CUDA 11.4. Thank you in advance.

[neka-nat]

Thanks!
This is probably the same problem.
#74
Please try to use the latest master.

[mvanlobensels]

Thank you for your quick reply. I suppose you mean this is not available via pip? So build from source? Is it possible for you to update the pip package?

[neka-nat]

It needs to be built.
The pip package update will be coming soon.

[mvanlobensels]

Thank you @neka-nat!

Unfortunately, I get build errors when building from source.

Killed
CMake Error at cupoch_geometry_generated_occupancygrid.cu.o.Release.cmake:280 (message):
  Error generating file
  /tmp/cupoch/build/src/cupoch/geometry/CMakeFiles/cupoch_geometry.dir//./cupoch_geometry_generated_occupancygrid.cu.o

Edit: My apologies, I misread #74. My node indeed works as it should!

[neka-nat]

I released v0.2.2.0.
Please try it!