Contour plot matlab

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Help Center Help Center. The column and row indices of Z are the x and y coordinates in the plane, respectively. Specify levels as a scalar value n to display the contour lines at n automatically chosen levels heights. To draw the contour lines at specific heights, specify levels as a vector of monotonically increasing values. To draw the contours at one height k , specify levels as a two-element row vector [k k]. Specify the options after all other input arguments.

Contour plot matlab

Create matrices X and Y , that define a grid in the x-y plane. Define matrix Z as the heights above that grid. Then plot the contours of Z. Define Z as a function of X and Y. In this case, call the peaks function to create X , Y , and Z. Then plot 20 contours of Z. Define Z as a function of two variables, X and Y. Then create a contour plot of that function, and display the labels by setting the ShowText property to 'on'. Create a contour plot of the peaks function. Make the contour lines thicker by setting the LineWidth property to 3. Insert NaN values wherever there are discontinuities on a surface. The contour function does not draw contour lines in those regions. Define matrix Z as a sampling of the peaks function. Replace all values in column 26 with NaN values.

Create a contour plot that contour plot matlab labels with one digit after the decimal point followed by the letter m. Next, create a contour plot and specify the LabelFormat property as a handle to mylabelfun.

Help Center Help Center. A contour plot represents a 3-D surface by plotting lines that connect points with common z -values along a slice. For example, you can use a contour plot to visualize the height of a surface in two or three dimensions. You can create a contour plot with emphasis on selected contour lines by splitting the data and creating two overlapping contour plots. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select:.

Help Center Help Center. The column and row indices of Z are the x and y coordinates in the plane, respectively. Specify levels as a scalar value n to display the contour lines at n automatically chosen levels heights. To draw the contour lines at specific heights, specify levels as a vector of monotonically increasing values. To draw the contours at one height k , specify levels as a two-element row vector [k k]. Specify the options after all other input arguments. For a list of properties, see Contour Properties.

Contour plot matlab

Help Center Help Center. Specify X , Y , and Z as the coordinate data. Specify xslice , yslice , and zslice as the slice locations using one of these forms:. To draw one or more slice planes that are orthogonal to a particular axis, specify the slice arguments as a scalar or vector. To draw a single slice along a surface, specify all the slice arguments as matrices that define a surface.

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When X is a vector, the values must be strictly increasing or decreasing. Define Z as a function of X and Y. Select a Web Site Choose a web site to get translated content where available and see local events and offers. The properties listed here are only a subset. When you do not specify the levels, the contour3 function chooses the levels automatically. This table lists the named color options, the equivalent RGB triplets, and hexadecimal color codes. Off-Canvas Navigation Menu Toggle. Custom Line Width. You cannot use this value when the FaceAlpha property is set to 'flat'. LevelStep — Spacing between contour lines 0 default scalar numeric value. In this case, call the peaks function to create X , Y , and Z. Create two plots in a 2-by-1 tiled chart layout. Contour line width, specified as a positive value in points. Example: 3.

Description A contour plot displays isolines of matrix Z. Label the contour lines using clabel. Z must be at least a 2-by-2 matrix.

The purple region corresponds to heights between 2 and 3. Because fcontour uses adaptive evaluation, the actual number of evaluation points is greater. Transform the color data in CData so that it conforms to the surface. Based on your location, we recommend that you select:. Examples collapse all Plot Contours of Function. FunctionContour Properties. Output Arguments collapse all M — Contour matrix matrix. Similarly, set the y -axis tick values and associated labels. LineWidth — Line Width 0. Open Mobile Search. When you use a colormap, C is the same size as Z. Example: contourf Z,'ShowText','on' displays the contour line labels. Show contours close to 0 and 1 by setting the LevelList property.