How do I find the coordinates of a point in MATLAB?

How to get the exact position of a plotted point?

  1. hold on;
  2. function getPoint(varargin)
  3. currentPoint = get(gca, ‘CurrentPoint’);

How do I extract data from a MATLAB figure?

You can get the data from a plot by accessing the XData and YData properties from each Line object in the axes.

  1. Make the figure containing the plot the current figure.
  2. Call the gca command to get the current axes within that figure.
  3. Get the coordinates from the XData and YData properties of the Line object.

How do I extract data from a Matlab figure?

How do I get the coordinates of a picture?

Get Coordinates from an Image

  1. Open the image toolbar. Click an image to open the image toolbar:
  2. Choose the coordinates tool. Choose the coordinates tool in the toolbar:
  3. Click image points.
  4. Copy image coordinates to the clipboard.
  5. Paste the image coordinates into an expression.

How do you get input in Matlab?

x = input( prompt ) displays the text in prompt and waits for the user to input a value and press the Return key. The user can enter expressions, like pi/4 or rand(3) , and can use variables in the workspace. If the user presses the Return key without entering anything, then input returns an empty matrix.

How do you use Ginput?

[ x , y ] = ginput( n ) allows you to identify the coordinates of n points within Cartesian, polar, or geographic axes. To choose a point, move your cursor to the desired location and press either a mouse button or a key on the keyboard. Press the Return key to stop before all n points are selected.

How do I export data from MATLAB?

You can export a cell array from MATLAB® workspace into a text file in one of these ways:

  1. Use the writecell function to export the cell array to a text file.
  2. Use fprintf to export the cell array by specifying the format of the output data.

What is CData MATLAB?

CData — Image color data. 64-by-64 array (default) | vector or matrix | 3-D array of RGB triplets. Image color data, specified in one of these forms: Vector or matrix — This format defines indexed image data. Each element defines a color for one pixel of the image.

How to step through figure data in MATLAB?

Edit: one can also step through the figure data in Matlab, by loading the figure using the command “s=load (‘Figure.fig’,’-mat’)”. The solutions using “get” never really worked for me.

How can I read MATLAB data in Python?

If anyone else happens upon this: Matlab figures are just “.mat” files. The scipy.io library in Pylab can read Matfiles into numpy structures using the ‘loadmat’ command. One can then browse the figure data in Python and locate the data.

How do I get the number on a plot in MATLAB?

at the MATLAB Command Window. If you have more than one line on the plot, the GET function will return a cell array. To retrieve the numbers inside of this cell array, use indexing.

How do I read a fig file in MATLAB?

Instead, users can directly read and analyze the *.fig file by loading it into Matlab memory using the load() function, since *.fig files are basically simple MAT files with a .fig (rather than .mat) file extension.