intensity plot and MSnode-window communication

[Rus]

Two questions:

1) Is there an intensity plot function that can be called from the mathscript window to display 2D arrays (such as a grayscale image), similar to the matlab function "image" or "imagesc"? The only options I saw were to display a 2D array on a 3D plot. Yes, I know the intensity plot is available in the variable display window, but I would really prefer a command-line option.

2) When I wire a variable to a matlab script node and run the VI, that variable becomes available in the matlab command-line window. I find this very convenient. Is it possible to do this (or something like this) with the mathscript node and window? I know I can communicate between the node and window with globals, but I have to go through the trouble of defining globals, and this only works if I create a project for my VI, which is just far too much overhead.

thanks.

[GrantM]

Hello,

In response to your first question, we currently do not have such a function.  However, such functionality is on the roadmap for a future release.  As for the second question, each MathScript node is currently sandboxed -- that is, it has its own variable space.  This was done so that there is no variable collision between different MathScript nodes.  We will be improving the interaction between the MathScript node and the MathScript Window in the future and your suggestion is one idea we are considering.  It would most likely be an option on the node and not enabled by default to prevent any variable collisions.

You do not need to create a project in order to use globals to share data between the MathScript node and the MathScript Window.  However, the MathScript node and the MathScript Window need to be in the same application instance.  Thus, if you are already using projects, make sure you launch the MathScript Window from the same project in which your VI is located.  If you are using the default application context (no projects open), then you should be able to share a variable "a" between a MathScript node and the MathScript Window by typing in each:

global a

Grant M.
Staff Software Engineer | LabVIEW Math & Signal Processing | National Instruments