getContourLineCoord​inates

Version 1.1.0 (2.93 KB) by Adam Danz
Get a table of contour line coordinates from a contour object.
1.7K Downloads
Updated Thu, 14 May 2020 14:06:00 +0000

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Use the outputs from any of the contour plot functions to produce a table of (x,y) coordinates of the contour lines organized by contour level and group.

[cm, h] = contour(___);
contourTable = getContourLineCoordinates(cm);
--or--
contourTable = getContourLineCoordinates(h);

contourTable =
Level.........Group..........X............Y
____________________________________
-5.8504.........1..........0.44266....-1.75
-5.8504.........1..........0.375........-1.8038
-5.8504.........1..........0.25..........-1.8526
-5.8504.........1..........0.125........-1.8498
etc....

Where Level is the contour level in the LevelList of a contour object, Group is a grouping variable for contour levels, and (X,Y) are coordinates along the contour lines.

Cite As

Adam Danz (2024). getContourLineCoordinates (https://www.mathworks.com/matlabcentral/fileexchange/74010-getcontourlinecoordinates), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2019b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on Contour Plots in Help Center and MATLAB Answers
Acknowledgements

Inspired by: Extract contour data from contour matrix C

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Version Published Release Notes
1.1.0

(x,y) coordinates are now in order of proximity within each level. Improved documentation.

1.0.1

Reformatted description, no changes to code.

1.0.0