If X or Y is irregularly spaced, contourf calculates contours using a regularly spaced contour grid, then transforms the data to X or Y.Ĭreate a filled contour plot of the peaks function.
#Contour plot color matlab Patch
Returns the contour matrix C as calculated by the function contourc and used by clabel, a vector of handles h to patch graphics objects, and a contour matrix CF for the filled areas. The plot() function is used to draw points (markers) in a diagram. When X and Y are matrices, they must be the same size as Z, in which case they specify a surface as surf does. A circular color wheel showing the gradation of colors in the spectrum Code. Produce contour plots of Z using X and Y to determine the x- and y-axis limits. Matplotlib is a plotting library for the Python programming language and its numerical mathematics extension NumPy. The number of contour lines and the values of the contour lines are chosen automatically.ĭraws a contour plot of matrix Z with n contour levels.ĭraws a contour plot of matrix Z with contour levels at the values specified in vector v.Ĭontourf(X,Y,Z), contourf(X,Y,Z,n), and contourf(X,Y,Z,v) Specify the axes as the first input argument. What I mean is: either you have value 2 or 4 or 10 etc, not 2.2. the most probable thing is that your data is not 'gradual'. surfc (ax, ) plots into the axes specified by ax instead of the current axes. 2 Answers Sorted by: 7 Cinicos solution didnt work for me. Here's what I used: Set Data data (1:100)' (1:100) figure subplot (1,2,1) Binned Color contourf (data) subplot (1,2,2) Gradual Color pcolor (data) hold on shading interp contour (data,'LineColor','k') but. surfc (Z,C) additionally specifies the surface color. There are two ways to manually set the colors of a contour plot in MATLAB. A xlsread ('AR07W2011processed.
If you want it to extrapolate outside of the values of data reported, remove the 'non' from the 'scatteredInterpolant' command. The color of the filled areas depends on the current figure's colormap.ĭraws a contour plot of matrix Z, where Z is interpreted as heights with respect to a plane. surfc (Z) creates a surface and contour plot and uses the column and row indices of the elements in Z as the x - and y -coordinates. This plots the original data, the mesh that interpolates that data, and the contours it creates. Contourf (MATLAB Functions) MATLAB Function ReferenceĪ filled contour plot displays isolines calculated from matrix Z and fills the areas between the isolines using constant colors.
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