[resolved] Make a point of a line the child of a parent mesh

[Dad72]

Hi,

I think all is said in the title.  I wish I could move a mesh that moves a point on a line using parent/child (on a points).  But this seems not possible or I don't know how to do it. Unless there's another solution, but I don't see.
I made an example on this PG. can someone help me.

http://www.babylonjs-playground.com/#YCVDD#2

Thanks

[adam]

http://www.babylonjs-playground.com/#YCVDD#4

[Dad72]

In fact, no.  Here's a more accurate PG.  And your solution does more Adam 

That's why I want to do a parent child relationship

http://www.babylonjs-playground.com/#YCVDD#5

[adam]

It still isn't clear to me what you are trying to achieve.

[Dad72]

I want to do the same thing in your PG, but by moving the gizmo, it moves the point to the line. 

It's for my editor, I want to create a pathfinding for the PNJ follow a path.  but in my editor, the user can change the path with the gizmo

[DigiHz Data]

@Dad72

You want to stretch/shrink the line?

[Dad72]

Yes, I want to move in any direction, and that the point of the line is still attached to the cylinder. 

[DigiHz Data]

Like this?

http://www.babylonjs-playground.com/#YCVDD#6

[adam]

I would use a LineSystem and each point in the array would be the position of your points meshes (like I did in the PG).

[DigiHz Data]

@Dad72 Do you have a custom version of the edit control in your PG?

You have "free rotation" and that is not in Satgurus original code.

[Dad72]

8 minutes ago, DigiHz Data said:

Like this?

http://www.babylonjs-playground.com/#YCVDD#6

No, This all moved the line, I want to move one single point (one or the other)

[DigiHz Data]

@Dad72

But you not have any "points", you mean that you want to move one of the cylinders but keep the line attaches while moving the selected cylinder?

[Dad72]

Yes

[Dad72]

I think that the ideal would be to connect points (vector3) as:

line.points[0].parent = box; 

There are points in a line:

 var points = [cylinder1.position, cylinder2.position];
var line = BABYLON.Mesh.CreateLines("lines", points, scene, true);

But points is not accessible in the line.

 

 

[DigiHz Data]

@Dad72

Almost there i think.

http://www.babylonjs-playground.com/#YCVDD#7

[adam]

11 minutes ago, Dad72 said:

 

I think that the ideal would be to connect points (vector3) as:

line.points[0].parent = box; 

 

A Vector3 doesn't have parent property.

[DigiHz Data]

@Dad72

This is what you want?

http://www.babylonjs-playground.com/#YCVDD#8

 

[Dad72]

Yes, that's right DigiHZ.  Big thanks for your help. 

[DigiHz Data]

BTW Dad72.

I know you not write english so good, you told me that before, but.-....

Do you read and understand english good?

[DigiHz Data]

Your welcome @Dad72

Keep in mind that it is a speciall version of edit control that i am using.

It only uses eular.

 

[adam]

@DigiHz Data Why are you disposing the lineMesh?

[DigiHz Data]

@adam

I not know how to update the lines positions.

[Dad72]

3 minutes ago, DigiHz Data said:

Do you read and understand english good?

Yes, my translator well translate the English to the french, but not very well french into English. 

Thanks again

[adam]

2 minutes ago, DigiHz Data said:

I not know how to update the lines positions.

Look at my PG.

[DigiHz Data]

@adam

You mean like this instead?

http://www.babylonjs-playground.com/#YCVDD#9