Add multiline text annotation to graph with different colors

I am generating a plot of the calibration for 3 different sensors. I need to annotate it with the calibration constants, and I would like to color code the annotations.

Right now I am using a loop to create the annotation as one char array so I don't have to align each annotation individually:

for i=1:3
    labels(i,:)=['Probe ',num2str(i),' : ',num2str(cal_const(i),'%0.1f')];
end

I then add a title to my annotation block:

labels=strvcat('Calibration Constants','(in mm/volt)',labels)

And add it to my plot:

text(-1.35,-10,labels);

I would like to color rows 2-4 of 'labels' to correspond to the plotted calibration data, but it seems I would need to use individual text(...) commands to achieve this, which then puts me back in the situation of having to individually align 4 separate text annotations.

I am sure there are better ways to accomplish these annotations, what should I be doing instead?

Thanks, Jake

Answer 1

[Image Analyst]

That is most likely something you'll find only on Yair's site: http://undocumentedmatlab.com/?s=text+colors Hoever his solution might be more complicated to calling text() 3 times (I don't know). What's the big deal with aligning? You just use the same x value in all three calls to text(). No big deal.

[Jacob]

My concern with alignment was more with the y values - the required spacing between the lines will depend on the scale of the graph, won't it? If the y scale changes, then the y value that corresponds to 10 pts (+some space) will be different.

[Image Analyst]

I don't know. You'd have to try and see. Maybe you can change the units so that it's normalized to the size of the axes control instead of using the x,y ranges of the data that got plotted.

[KAE]

I have the same problem: want the y spacing to remain constant when I resize the figure.