### Configuration Space/ Joint Space

Posted:

**19 Jul 2019, 03:34**Hello,

I have a confusion in configuration space for a robotics arm.

I know C-space have the dimension of number of joints in a robot. for example 7-DOF robot will have 7-D C-Space.

So when we implement motion planning algorithms like RRT, PRM or any other planning algorithms in C-Space, if choose a random point in C-space (say for example 5.5) how does a single random point corresponds to 7-D C-space. I mean don’t we need to specify a vector 7 different random points to denote a point in C-Space?

Thanks in advance

I have a confusion in configuration space for a robotics arm.

I know C-space have the dimension of number of joints in a robot. for example 7-DOF robot will have 7-D C-Space.

So when we implement motion planning algorithms like RRT, PRM or any other planning algorithms in C-Space, if choose a random point in C-space (say for example 5.5) how does a single random point corresponds to 7-D C-space. I mean don’t we need to specify a vector 7 different random points to denote a point in C-Space?

Thanks in advance