Steema Central

I'm creating a 3d surface, adding surface points with AddXYZ(x,y,z), the documentation says null (y) surface points are supported.

How do I add them ?

There doesn't seem to be an AddNullXZ(x,z)

Suggestions ?

Later,
Paul

Hi Paul,

You should set cell's colour to clNone to set a Null value as shown in the All Features\Welcome!\Chart Styles\Extended\Surface\With holes example in TeeChart's features demo, available at its program group.

Thanks for the info.

What you suggest works only if OpenGL is turned off.

I need OpenGL on for speed reasons.

Any other suggestions ?

The answer to null points in a OpenGL surface is to set NumXValues and NumZValues first and then just don't AddXYZ the points that are null.

Later,
Paul