How do I rotate a text object in a 3D plot to appear to be painted on the wall?

I'm trying to rotate the text "Spiral" to appear as if it was painted on the X-Z wall of the following 3D plot

t = 0:pi/50:10*pi;

plot_handle = plot3(t,cos(t),sin(t));

grid('on')

box('on')

text_handle = text(15,1,0,'Spiral','FontSize',32,'HorizontalAlignment','center','VerticalAlignment','middle');

line([15 15],[1 1],[-1 1],'Color','r','LineWidth',2,'LineStyle','--')

ax = gca;

[az,el] = view;

xlabel('X axis')

ylabel('Y axis')

zlabel('Z axis')

xlim([0 10*pi])

ylim([-1 1])

zlim([-1 1])

After reading the documentation for the "rotate" function (https://www.mathworks.com/help/matlab/ref/rotate.html), I figured I need to rotate the text by "az" degrees around the dashed red line. However, the following does not result in my expected behavior. What am I doing wrong?

% Rotate text around dashed grey axis

rotate(text_handle,[15 1 -1],az,[15 1 1])

Answer 1

[Walter Roberson]

Use computer vision toolbox to draw the text into an array. Use warp() to texture map the array as a surface. It will now rotate with the view() or with rotate()

If you parent the surface returned from warp() to a hgtransform group, then you can manipulate position and rotation independently from other objects in the axes.

[Marcelo Caetano]

Thanks for the quick answer, Walter. I've never used the computer vision toolbox before. Could you please provide some sample code to exemplify how to convert text to an image array and also how to map the array as a surface?

[Walter Roberson]

https://www.mathworks.com/help/vision/ref/inserttext.html

https://www.mathworks.com/help/images/ref/warp.html

[Walter Roberson]

You might want to take the surface returned by warp() and apply AlphaData to it in order to make the background of the label box transparent.