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Writing characters with the robot

I want the robot to write characters (A to Z) on a board for demonstration purposes. What is the best way to realize this without to "define" each single character on my own? 

 

Regards

 

Peter  

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Hi Peter,

 

I believe defining each character is the simplest solution.

 

You could also try to vectorize an alphabet using image processing functions.

Basically this would allow you to use different fonts. But the effort is very high

compared to the simple definition.

 

Regards

 

Alexander

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Hello Alexander,

 

thanks for the response. As I understand there exist no VI like an editor where I could write text and as an output I get the pixel information.

 

Thanks a lot.

 

Regards Peter

 

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Hello Peter,

 

as I am not a LabVIEW specialist I do not know whether such a VI exists or not.

But I rather doubt it. Using the image processing VIs it seems feasable to me, though.

Only retrieving the pixel information seems to me is not enough as the robot should draw

lines (or splines). You should ask some image processing specialist which functions

would do the trick.

 

Regards

 

Alexander

 

 

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Peter,

 

Are you wanting to type in a message and have the robot write the text on a board, or integrate a camera and have the robot re-write/draw what the demonstrator writes on a piece of paper under a camera?  Using a camera, it is fairly straight-forward to threshold the image, define the contour of the shape/letters, then generate a series of coordinates based from the contour.  However, if you want to type in text and have the robot physically write the text on a board, it will probably take defining a set of points for each letter.

Carlton
CLA
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Hello Carlton,

thanks for your reply. I want the robot to write some text I have typed in. This is partly realized with defining every single character. Since I need some more projects for my students you gave me a new idea with rewriting a text or a drawing using a camera. 

 

Many thanks

 

Peter 

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