Order in which processes are applied

[David Serrano]

Gentlemen,

I'm applying two processes to some images (an ImageIdentifier followed by a PixelMath). To do that quicky, I select the two process icons and drag them on the desired image.

To my surprise, it works as expected whatever icon I drag. That's a surprise because, when I was a windows user (ugh...), I noticed that when copying or moving several files using drag and drop, the system always processed the file chosen to do the drag and drop operation first, and then the rest. So I expected PixInsight to:

 - perform ImageIdentifier followed by PixelMath if I dragged the ImageIdentifier icon, or
 - perform PixelMath followed by ImageIdentifier if I dragged the PixelMath icon.

That's not the case. I tried to play with the process icons' names to see if a plain alphabetical order was used but it seems it doesn't either. Then, what order does PixInsight choose?

[Juan Conejero]

Hi David,

When a set of more than one process icons is dropped on an "icon sensitive" object (e.g. an image, or a process interface control bar), processes are applied in positional order: from top to bottom and from left to right.

You must arrange the icons in the order they should be applied before starting to drag. When a multiple icon selection is defined, it doesn't matter which icon is clicked to start dragging.

[Niall Saunders]

processes are applied in positional order: from top to bottom and from left to right

What a simple concept  

That's why I like PixInsight so much !

Thanks all,