How can I change the position of the numbers in colorbar?

Dear, I would like to define the position of the number in that I have in colorbar.

To explain better, I am adding an image to show what I have and what I would like to have. This is the image.

Be attention on the 300ºC!

Cheers!

[Adam Danz]

All 4 yellow circles look the same to me. Does the colorbar represent the range of colors within each of those yellow circles? The range within the circles is much smaller than the range of your colorbar. I think what you want to do is rescale the colors in your image or rescale the colorbar. Is that correct? Could you share the code that produced this image?

[yogan sganzerla]

Dear Adan, Thanks for your replay!

The circle look like the same because the time is short. But if I increase the time the circle will be gradient will be more visible.

The range of my colorbar is corret! But the numbers are in vertical position (look the number 295) ans I would like to change the position to horizontal (Like the number 300).

The image below you can see the diferençe between them.

[Adam Danz]

I see. What you want to do is to rotation the orientation of the tick labels on your colorbar; not reposition them.

Could you share your code? When I produce a colorbar, the tick labels are already horizontally oriented.

[yogan sganzerla]

Yes Adam!

I will attach the code.

Cheers!

[jonas]

Correct me if I am wrong, but I believe you have actually rotated this image before uploading. In reality you want a horizontal colorbar with vertical ticklabels, yes?

As Adam Danz pointed out, the default text orientation on colorbars is always horizontal, but you want vertical right?

[Adam Danz]

...or do you want a vertical colorbar with horizontal ticks? That one's easy:

 h=colorbar('southoutside');

I don't know of a way to rotate the tick marks of a colorbar.

Answer 1

[jonas]

Rotating the ticklabels are surprisingly difficult. Ticklabels can not be rotated, but they can be replaced by normal text which in turn can be rotated. Here is a function to rotate the ticklabels of any colorbars with linear scale. Report back to me if you find any bugs. The ticklabels will always be on the right side (vertical) or below (horizontal) the colorbar.

function CTixRotate(cb)
cb.TickLabels={}

%%Grab some position properties for later use
ax_pos=get(gca,'position')
ax_limx=get(gca,'XLim')
ax_limy=get(gca,'YLim')
cb_pos=get(cb,'position')
cb_lim=get(cb,'limits')

%%Grab colorbar ticks
tix=cb.Ticks;

%%Create cell array with ticklabels
tixlabels=sprintfc('%.2g',tix)'

%%Normalized coordinates for ticks
%%Vertical colorbar
if cb_pos(4)>cb_pos(3)
    ny=linspace(cb_pos(2),cb_pos(2)+cb_pos(4),numel(tix))';
    nx=repmat(cb_pos(1)+cb_pos(3),numel(tix),1)
%%Horizontal colorbar
else
    nx=linspace(cb_pos(1),cb_pos(1)+cb_pos(3),numel(tix))';
    ny=repmat(cb_pos(2),numel(tix),1)
end

%%Convert from normalized (nx,ny) to axes (x,y) coordinates
ky=(diff(ax_limy)/((ax_pos(2)+ax_pos(4))-ax_pos(2)));
kx=(diff(ax_limx)/((ax_pos(1)+ax_pos(3))-ax_pos(1)));
y=ky.*ny-ky*ax_pos(2)+ax_limy(1);
x=kx.*nx-kx*ax_pos(1)+ax_limx(1);

%%Write out ticklabels
if cb_pos(4)>cb_pos(3)
    ht=text(x,y,tixlabels',...
        'rotation',-90,'verticalalignment','bottom','horizontalalignment','center')
else
    ht=text(x,y,tixlabels',...
        'rotation',-90,'verticalalignment','mid','horizontalalignment','left')
end
end

Example:

cb=colorbar;
cb.Position=[.5 .3 .05 .6];
caxis([5 10])
axis([2 7 90 100])
CTixRotate(cb)