Solved About TimeLine Coordinate System

Hi,
I want to use my method to calculate the tangent and weight of the animation curve.

But I ran into a problem. I can’t know how the vector base of the coordinate system of the TimeLine panel is defined. In the 3D coordinate system, x=1 cm, y=1cm, z=1cm, but in the TimeLine panel, x= 1Frame ?1 second, y =1 cm?1%? or 1 Degree.

Thanks for any help!

Hello @chuanzhen,

thank you for reaching out to us. We are not quite sure how to interpret your question as the context is unclear to us.

1. Mangers are sealed from the SDK in the classic API, meaning you have no access to them.
2. The timeline (and as a matter of fact also the world coordinate system) has no implied unit. There is no direct translation as 1px == 1cm as both the horizontal axis and vertical axis depend on the zoom level.
3. When you are implementing your own track, you will get passed in the left and right time boundary in Draw() as clip_left and clip_right.

In case there are still open question for you, we would kindly ask you to reiterate your question to give us more clarity.

Cheers,
Ferdinand

Hello @chuanzhen,

thank you for reaching out to us. We are not quite sure how to interpret your question as the context is unclear to us.

1. Mangers are sealed from the SDK in the classic API, meaning you have no access to them.
2. The timeline (and as a matter of fact also the world coordinate system) has no implied unit. There is no direct translation as 1px == 1cm as both the horizontal axis and vertical axis depend on the zoom level.
3. When you are implementing your own track, you will get passed in the left and right time boundary in Draw() as clip_left and clip_right.

In case there are still open question for you, we would kindly ask you to reiterate your question to give us more clarity.

Cheers,
Ferdinand

@ferdinand Thanks for your detailed reply!
" 2.The timeline (and as a matter of fact also the world coordinate system) has no implied unit. There is no direct translation as 1px == 1cm as both the horizontal axis and vertical axis depend on the zoom level." solved my question！