contourf plot different display problem

I want to draw a contour plot, the data is similar, the colormap is the same (created by jet(17)), and the data range is the same (caxis([1 17])), the difference is that:

in plot1, the data range is 1-12,

in plot2, the data range is 1-15.

below is the result:

the value in the red circle is in the same color but the display is not.

I also attached the test file and test code.

is there anyway to solve this problem?

Thanks!

Yu

[Walter Roberson]

I do not see any obvious problem with those plots ?

Remember, when you call contour() or contourf() without passing in a contour level list (non-scalar) then the routines will automatically pick the levels to contour at according to the data range.

[Yu Li]

I revise the description, please see posted.

[jonas]

Walter is right, the two plots have different levellists. If you add this name-value pair in both contour calls then you will get your desired plots

[xc1,yc1]=contourf(...,'levellist',[0:2:20]);

[Yu Li]

Ok, since setting the level list can make the contour have the same range of value, so what is the meaning of caxis for? seems caxis has the same effect, is there any mistake with my understanding?

https://www.mathworks.com/help/matlab/ref/caxis.html

[jonas]

It's not the same. The caxis sets the max and min for the colorbar and levellist specifies the contour levels to be drawn. Try setting

caxis([0 100])

and you will see what happens.

[Yu Li]

Ok I got it.

Thank you very much!

Bests!

Yu