Distance Joint 2D not working as described?

Questions & Answers
1

From the documentation here:

“Note that unlike the Spring Joint 2D, the Distance Joint is rigid and does not allow the distance between the objects to vary.”

However, in practice, it acts more like a string or rope, where the distance specified is a maximum, not an exact.

To replicate:

Add two Game Objects to the scene.

Give them each a Rigidbody 2D.

Set Gravity Scale to 0 on both.

Give one (or both) of them a Distance Join 2D with the other object as the target.

Run the scene and move around one of the objects (either in the inspector or through a script)

So either the documentation was wrong, this is a bug, or I’m missing something obvious.

Thoughts?

2

Yes, I think its the description you understand differently. with good reason imo.

look at the other one:
“The Spring Joint 2D component allows two Sprite objects controlled by rigidbody physics to be attached together as if by a spring. The spring will apply a force along its axis between the two objects, attempting to keep them a certain distance apart.”

http://docs.unity3d.com/Documentation/Components/class-SpringJoint2D.html

3

I’ve run into the same discrepancy between the description and actual behaviour of DistanceJoint2D. It’s behaving like what I’d expect from the slider joint.

My current workaround: use SpringJoint2D, set Frequency to 0. this keeps the joint objects at a fixed distance without any elasticity of the link.

4

Its still not working! If you trying to move main parent object distance become increase

5

In new version of Unity they added option 111158-spring.pngof Auto Configure Distance. that is the reason
Just Disable Auto Configure Distance in Spring Joint 2D component and its DONE111158-spring.png

,Just Disable Auto Configure Distance in Spring joint 2D and its DONE

111158-spring.png