Free hand drawing

[Sreedhar_T]

Hello,

I have a GUI on which there are many controls and indicators. I want to provide a tool to the customer in which the customer can draw freely on those objects (type some information etc). Is it possible.

Can I get examples. Also let me know if this can be done using any tools (external) or by importing MS paint function into Labview.

Thanks

Sreedhar

[udka]

Hi Sreedhar,
-As far as i know, we use free hand drawing or text on image indicators. For that you can check Overlay examples provided here http://www.ni.com/example/25623/en/
-Is this what you want??

[tst]

LabVIEW doesn't allow free drawing on the FP, but I can think of a couple of options:

1. If they don't need to interact with the controls when they're doing this, then look at the Code Capture Tool - http://lavag.org/files/file/63-code-capture-tool/. The UI of the CCT can grab an image of the FP and then allow the user to annotate it with text and shapes. You can either have them use the CCT directly, or modify its code so that it matches your needs. Be sure to look at the licensing for it to see what you have to comply with.
2. If they do need to interact with the controls, then you can have a transparent picture control in the same VI and draw on that in the same way that the CCT does. If the decorations need to be visible while they interact with the controls, I would use two picture controls showing the same thing - one in front of the controls for drawing and a second one behind the controls for when you're done drawing. You then need to hide the front one when you're not drawing.

[Sreedhar_T]

Sounds cool.

Let me chck out both the options and get back.

Regards