How to get the y-axis in the foreground while having the grids in the background?

Question

Amelie 2024-4-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2109501-how-to-get-the-y-axis-in-the-foreground-while-having-the-grids-in-the-background

评论： Adam Danz 2024-4-23

采纳的回答： Voss

在 MATLAB Online 中打开

Dear all,

this is a version of my code:

  figure() 
hold on 
grid on
set(gca, 'Layer', 'top')
jbfill(1:100,x(:,1)',y(:,1)',color.red, color.red,0,1);
    hold off
    xticks(0:1:100);
    title('Temperature');
    ylabel('Percent');
    xlabel('Months');
  
 

I have the following problem:

I try to get the grids in the background behind jbfill and the yaxis/ yticks above the jbfill, but jbfill is lying above the y-axis / y ticks and thus covering y-axis / y ticks. So in order to get the y-axis / y ticks above jbfill (to make them visible) I use " set (gca, 'Layer','top') " . But then the grids are automatically "above" jbfill although they should be not visible where the jbfill plot is.

Does someone have a hint how I can solve this problem?

Many thanks for your help!

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Adam Danz 2024-4-23

Hint: https://www.mathworks.com/matlabcentral/answers/475686-how-do-i-put-gridlines-on-the-bottom-layer-and-axes-on-the-top-layer#answer_389323

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Answer 1

Voss 2024-4-20

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https://ww2.mathworks.cn/matlabcentral/answers/2109501-how-to-get-the-y-axis-in-the-foreground-while-having-the-grids-in-the-background#answer_1444956

在 MATLAB Online 中打开

"I try to get the grids in the background behind jbfill and the yaxis/ yticks above the jbfill"

That's no going to work; the grids and ticks must "go together" - eitther all behind other stuff in the axes (if Layer is 'bottom') or all in front of other stuff in the axes (if Layer is 'top').

However, you can create your own lines that represent grid lines and place those behind of or in front of whatever you want.

Example:

x = 0:50;

y = rand(1,numel(x));

figure()

hold on

grid off

box on

set(gca, 'Layer', 'top')

% vertical grid line coordinates:

vxd = x([1 1],1:5:end);

vxd(end+1,:) = NaN;

vyd = repmat([0;1;NaN],1,size(vxd,2));

% horizontal grid line coordinates:

hxd = repmat([x([1 end]).'; NaN],1,11);

hyd = repmat(linspace(0,1,11),2,1);

hyd(end+1,:) = NaN;

% create the grid lines (before creating the patch):

line(vxd(:),vyd(:),'Color',0.15*[1 1 1],'LineStyle','--')

line(hxd(:),hyd(:),'Color',0.15*[1 1 1],'LineStyle','--')

% create a patch (on top of the grid lines):

patch(x([1 1:end end]),[0 y 0],'r')

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Voss 2024-4-21

You're welcome!

Adam Danz 2024-4-23

在 MATLAB Online 中打开

Starting in R2024a you can control the stack order of ConstantLine objects. The benefits of using a ConstantLine rather than a line() is that ConstantLines are 1-dimensional, you won't see the end of the line if the axes limits change, and the code is simpler.

Using @Voss's helpful demo,

x = 0:50;

y = rand(1,numel(x));

figure()

hold on

grid off

box on

set(gca, 'Layer', 'top')

% create the grid lines (before or after the patch)

xlines = x(1:5:end);

ylines = 0:.1:1;

xline(xlines, '--', 'Color', 0.15*[1 1 1], 'Layer','bottom')

yline(ylines, '--', 'Color', 0.15*[1 1 1], 'Layer','bottom')

% create a patch (on top of the grid lines):

patch(x([1 1:end end]),[0 y 0],'r')

xline|yline released in R2018b
array support in xline|yline: R2021a
Layer property added R2024a
Note that xline|yline have a default alpha value of 0.7 which can be changed using the Alpha property.

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