text out on axes

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Jason
Jason on 10 Oct 2014
Answered: Mike Garrity on 10 Oct 2014
I load an image onto an axes and want to display text in the top left hand corner. As I often display the image at different zoom factors, using the text using x,y wont work for all Zoom factors. Is there away to say irrespective of zoom, always plot at a certain coordinate on the underlying axes?
  1 Comment
Jason
Jason on 10 Oct 2014
I will give it a go thanks. Was just wondering if you could text onto an image but use locations from the axes. Thanks IA

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Accepted Answer

Mike Garrity
Mike Garrity on 10 Oct 2014
Yes, text has a 'Units' property. If you set this to one of the "screen space" units (I just made that term up), then it is relative to the lower-left corner of the axes.
For example:
text(2*72, 1*72, 'My String', 'Units', 'points')
Will create a text string which stays 2 inches in from the left and 1 inch up from the right (a point is 1/72 inch), even when you pan or zoom.

More Answers (1)

Image Analyst
Image Analyst on 10 Oct 2014
Can't you just divide the x,y by the zoom factor and text() it with those adjusted coordinates?

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