Overlapping X-axis Values at The Origin of The Graph

Question

AE104 2022-3-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1663859-overlapping-x-axis-values-at-the-origin-of-the-graph

回答： Poorna 2023-11-21

GUI125.PNG

Hello,

While I am plotting the data, the x-axis values are overlapping at the origin of the graph. Why does it happen and how can I solve this issue? Attached figure shows the issue.

Thank you,

scale_max_time = double(app.max_time_value)/2.0*19.6; % 19.6 us is time resolution based on the sampling rate. The sampling rate 51 kSps (100 Mhz (core clock)/4= 25 MHz. 25 MHz/ (480 + 12)).
timevalues = 1.0:19.6:scale_max_time; % 19.6 us is time resolution based on the sampling rate. The sampling rate 51 kSps.
array_max = ceil(app.max_time_value/2);
if (array_max > 1100)
array_max = 1100;
end
cla(app.UIAxes2);
hold(app.UIAxes2, 'on');
%colors = ['r', 'g', 'b', 'm', 'k', 'w', 'k', 'c','r', 'g', 'b', 'y', 'm', 'w', 'k', 'c']; 
colors = [0 0.4470 0.7410; 0.8500 0.3250 0.0980; 0.9290 0.6940 0.1250; 0.4940 0.1840 0.5560; 0.4660 0.6740 0.1880; 0.3010 0.7450 0.9330; 0.6350 0.0780 0.1840; 0 0 1; 1 0 0; 0 1 0; 0.15 0.15 0.15; 0.47 0.67 0.19; 1 0.41 0.16; 0.39 0.83 0.07; 0.06 1 1; 0.72 0.27 1]; 
legend_count = 1;
legend_str{1} = "";
for dmux = 1:16
for mux = 1:16
    if ((app.dmux_arr(dmux)==1) && (app.mux_arr(mux)==1) && (dmux==mux))
        legend_str{legend_count} = strcat('CH #', num2str(mux));
        legend_count = legend_count + 1;
            plot(app.UIAxes2, timevalues, squeeze(app.Voltages_Electrodes(dmux, mux, 1:array_max)), 'Color',colors(mux,:));
        app.Gauge.Value = (((app.Voltages_Battery(dmux, mux, 1))*100)/8.4); 
    end
end
end
legend(app.UIAxes2,legend_str,'AutoUpdate','off');
yline(app.UIAxes2, 0);  

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Answer 1

Poorna 2023-11-21

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在 MATLAB Online 中打开

Hi AE104,

I understand that you are encountering the issue of overlapping x-axis tick values in your plot.

This problem typically occurs when the x-ticks are tightly packed together. You can refer to the following solutions to address this issue and improve the readability of your plot:

One approach is to increase the size of the plot, which provides more space for the x-axis labels. By enlarging the plot, you can create more room for the x-axis ticks to be displayed without overlapping.
Another option is to limit the x-axis to a specific region of interest. By focusing on a particular x-axis range, you can allocate more space for the x-axis ticks. You can achieve this by using the "xlim" function, which allows you to set the lower and upper limits of the x-axis accordingly. A sample code is given below

xlim([x_min, x_max]);

Additionally, you can specify your own custom x-ticks using the "xticks" function. This provides you with the flexibility to choose and display specific x-tick values that are relevant to your data. By manually selecting the x-ticks, you can ensure that they are appropriately spaced and avoid overlapping issues. A sample code is given below.

xticks([-5 -2.5 -1 0 1 2.5 5])

Please refer to the following documentation to know more about the “xlim” and “xticks” functions.

Hope this Helps!

Best regards,

Poorna.