How to move the top-point to the center of the pyramid?

[mike99]

If I make the panel like the image below,the top-point maybe far away from the center of the pyramid panel that based on a curved surface.
87048, the point in the red circle, don't affect the top-point, this is the reason for that?


and then I make this panel, hope each corner point can affect the top-point, but it seem don't work,
87049

so, if any ideas?

[damon.sidel]

Instead of creating the diagonal, I'd create another floating frame above the adaptive points and then place the center point from this. That's not entirely clear, so see the images/family attached.
87050

Each of the circled floating points is offset from the corresponding adaptive point, hosted on its xy reference plane, outlined in red. The offset is set to a parameter that I created, so you can control the height of the pyramid. Notice also that I've then created a "cross bar" from mid point of two sides of the floating frame. If each adaptive point is at a different coordinate, this gives a system by which the center point follows all of them, at least in a certain way. As for your second image, I haven't tackled that, because it's a little hard to tell where all the points are in 3D (the image reads flat). I think you can use a similar method as what I've shown: you may need to create multiple floating frames at different offsets to get the different heights and use host at intersection along the diagonals of the pyramid and each frame. See what you can do and how far you get and post again. I'll see if I can help.

[mike99]

Instead of creating the diagonal, I'd create another floating frame above the adaptive points and then place the center point from this. That's not entirely clear, so see the images/family attached.
87050

Each of the circled floating points is offset from the corresponding adaptive point, hosted on its xy reference plane, outlined in red. The offset is set to a parameter that I created, so you can control the height of the pyramid. Notice also that I've then created a "cross bar" from mid point of two sides of the floating frame. If each adaptive point is at a different coordinate, this gives a system by which the center point follows all of them, at least in a certain way. As for your second image, I haven't tackled that, because it's a little hard to tell where all the points are in 3D (the image reads flat). I think you can use a similar method as what I've shown: you may need to create multiple floating frames at different offsets to get the different heights and use host at intersection along the diagonals of the pyramid and each frame. See what you can do and how far you get and post again. I'll see if I can help.

Thanks a lot , nice idea!

[Alfredo Medina]

A diagonal with a mid point, which serves as a host for the apex point, should be enough: