contourf plot different display problem
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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
6 个评论
Walter Roberson
2018-10-5
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
2018-10-5
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
2018-10-5
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
2018-10-5
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