Gizmo/Mesh movement limitation

Questions
1

Hello everyone,
is it possible to make gizmo (eq. Yplane) move only inside 2d square? To add something like

if(position.x < min.x || position.x > max.x) {
return false;
}
if(position.z < min.z || position.z > max.z) {
return false;
}

inside yPlaneGizmo.dragBehavior.onDragObservable

here’s the playground for example:

2

pinging @Cedric

3

You can check the attached mesh and constrain its position. If you have no mesh, you can add a transient transform. Once it’s done, it’s just a matter of setting the position in onDragObservable. Like this:

constrained mesh gizmo | Babylon.js Playground

1 Like
4

as always, thank for the fast reply @Cedric :smiley: what about if the plane is rotated? I think there’s need to be a method that takes position of mesh and rotation of plane? So it could calculate eq. max position of x with the given x, z?
https://playground.babylonjs.com/#5Z8Q7H#2

5

You can multiply the position by the invert of the plane world matrix. then do the clipping and multiply back the result by the plane world matrix.

Works with position/scale/orientation.

2 Likes