arifzaman's profile - activity

I am working on Ubunto 20.4 with ROS noetic. I am having intel Real sense D415 camera by which I can visualize the point cloud on Rviz.

1. I want to get xyz coordinates of each pointcloud and from that I want to separate min and max point xyz coordinates.
2. After getting the min and max values of pointcloud i want to input my target xyz coordinates and want to compute the error difference.

I am very much new to ROS and doesn't have good programming experience as well. I will be very much thankful if anyone can share me any sample code or guide me step by step as i have searched almost all ROS forums but didn't get my answer.

I have gone through this code (https://www.programmersought.com/arti...) but it gives out several errors.

[ERROR] [1622062315.967796]: bad callback: <function callback_pointcloud at 0x7fe9857b61f0>
Traceback (most recent call last):
  File "/opt/ros/noetic/lib/python3/dist-packages/rospy/topics.py", line 750, in _invoke_callback
    cb(msg)
  File "/home/arif/catkin_ws/src/perception_pcl/pcl_ros/src/pcl_ros/xyz.py", line 14, in callback_pointcloud
    print (" x : %.3f  y: %.3f  z: %.3f") %(p[0],p[1],p[2])
TypeError: unsupported operand type(s) for %: 'NoneType' and 'tuple'

Kindly help me out, I will be very much thankful to you.

Thanks Ranjit, Got your Point.

I also have the same error and the map is not updating. How to fix this?

I also exactly got same error. My Octomap is also not updating. Have you got any solution? or is there anyone can help?

No, the values which i am getting are like: value of x : 85.66250610351562 value of y : 48.047407150268555 value of z

Thanks you so much Ranjit, I have answered the ques. In my application I have to calculate the volume of soil from poin

Thanks you so much Ranjit, I have answered the ques, kindly check it if anything still wrong? Thanks again.

Thanks you so much Ranjit, I have answered the ques, kindly check it if anything still wrong? Thanks again.

Thanks Ranjit once again, I have worked on my code and got the x,y,z coordinates and then finally got the volume of my p

2.(Call get_depth function for obtaining the distance of that pixel into the point cloud.) def get_depth(self, x, y):

2.(Call get_depth function for obtaining the distance of that pixel into the point cloud.) def get_depth(self, x, y):

Hello Ranjit, once again thank you so much for helping me. According to the link you have provided I have got code up to

Hello Ranjit, once again thank you so much for helping me. According to the link you have provided I have got code up to

Hello Ranjit, once again thank you so much for helping me. According to the link you have provided I have got code up to

Respected Sir, Tons of thanks for your response. As soon as I had got your answer I started working to extract xyz coord

Thank you so much for your comment, I have corrected my code, and now its working and giving the xyz values.

Respected Sir, I am working on Ubunto 20.4 with ROS noetic. I am having intel Real sense D415 camera by which I can visu

How to get xyz coordinates of pointcloud using Intel Real Sense D415? I am working on Ubunto 20.4 with ROS noetic. I am

I have made the launch file running, hope this helps. Here I have (camera/depth/color/points) topic and I am using Intel

Respected member I am very much new to ROS and I exactly want to filter the xyz all at one so have you got any launch fi