Hello everyone, I have built a convexhull from a list of points using the ConvexHully function of scipy.spatial

```
H=ConvexHull(points)
PH=H.points
vh=H.vertices
sh=H.simplices
go.Mesh3d(x=PH[:, 0],y=PH[:, 1], z=PH[:, 2],
name='Hull',
showlegend=True,
color='gray',
i=sh[:, 0], j=sh[:, 1], k=sh[:, 2],
opacity=1,
alphahull=1,
showscale=False)
```

and on the other hand I have drawn a surface from a grid, using go.Surface.

```
tx=grid[0]
ty=grid[1]
tz=grid[2]
X = np.linspace(min(tx), max(tx))
Y = np.linspace(min(ty), max(ty))
X, Y = np.meshgrid(X, Y)
Z = griddata((tx,ty),tz,(X,Y), method='linear)
go.Surface( x=X,y=Y,z=Z,
colorscale=blues,
opacity = 1,
name='Topography',
showlegend=True,
showscale=False)
```

I would like to erase the part of the convexhull that is above the surface.

Any suggestions?

Thanks