How to plot 3d graphs from multiple .dat files in matlab?

In summary, to import and plot multiple .dat files in MATLAB, use the <code>importdata</code> and <code>plot3</code> functions respectively. Multiple 3D graphs can be plotted on the same plot by using the <code>hold on</code> command and labeling the axes and adding a title can be done with the <code>xlabel</code>, <code>ylabel</code>, <code>zlabel</code>, and <code>title</code> functions. To save a 3D graph as an image file, use the <code>saveas</code> function with the appropriate file extension.
  • #1
s_hy
61
0
In my project I basically need to plot 3D color coded surface graphs using MATLAB taking input from multiple .dat files (i have 1000 .dat files). In each file I have parameters x and y, and when I take multiple files, each having a different value of z, I can finally plot a graph. so does anyone know how to take input from these multiple .dat files and draw a 3D graph in MATLAB?

thank you.
 
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  • #2
Read the files one at a time and put the contents in a 3D matrix, while iterating the coordinate z file by file.
 

1. How do I import multiple .dat files into MATLAB?

To import multiple .dat files into MATLAB, you can use the importdata function. This function reads data from a text file and returns the data in a structure array with fields for the data and text. You can then access the data from each file using indexing.

2. How do I plot a 3D graph in MATLAB?

To plot a 3D graph in MATLAB, you can use the plot3 function. This function takes three vectors as inputs, representing the x, y, and z coordinates of the data points. You can also specify the color and style of the line using additional parameters.

3. Can I plot multiple 3D graphs on the same plot?

Yes, you can plot multiple 3D graphs on the same plot in MATLAB. You can use the hold on command to add additional plots to an existing plot. Make sure to use the plot3 function for each graph and specify different colors or styles to differentiate them.

4. How do I label the axes and add a title to a 3D graph?

To label the axes and add a title to a 3D graph in MATLAB, you can use the xlabel, ylabel, zlabel, and title functions. These functions take a string as an input and will label the corresponding axis or add a title to the graph.

5. How do I save a 3D graph in MATLAB as an image file?

To save a 3D graph in MATLAB as an image file, you can use the saveas function. This function takes the figure handle and a filename as inputs and will save the graph as an image file in the specified format. Make sure to use the appropriate file extension, such as .png or .jpg.

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