How does the surface plot in MATLAB surf work?

How does the surface plot in MATLAB surf work?

surf (Z) creates a surface plot and uses the column and row indices of the elements in Z as the x – and y -coordinates. surf (Z,C) additionally specifies the surface color. surf (ax, ___) plots into the axes specified by ax instead of the current axes.

How to plot the surface color of a matrix?

The function plots the values in matrix Z as heights above a grid in the x – y plane defined by X and Y. The color of the surface varies according to the heights specified by Z. surf (X,Y,Z,C) additionally specifies the surface color.

What’s the difference between Z and C in surface plot?

The surface plot uses Z for height and C for color. Specify the colors using a colormap, which uses single numbers to stand for colors on a spectrum. When you use a colormap, C is the same size as Z. Add a color bar to the graph to show how the data values in C correspond to the colors in the colormap.

How to create a semitransparent surface in MATLAB?

Create a semitransparent surface by specifying the FaceAlpha name-value pair with 0.5 as the value. To allow further modifications, assign the surface object to the variable s.

Where can I find matlab2tikz in my computer?

Place the matlab2tikz scripts (contents of src/ folder) in a directory where MATLAB can find it (the current directory, for example). b. Make sure that your LaTeX installation includes the packages Pgfplots (>=1.3). Generate your plot in MATLAB.

What are the ticks for MATLAB in TikZ?

The default MATLAB ticks (in may case 0.2, 0.4 .. 0.8 in the log axis) were ignored and instead the Tikz command ymode=log modified the ticks to 10^-0.5, 10^0 and so on. But I guess that is something too specific to be specified as a function argument.

How to generate a pgfplot in MATLAB?

Pgfplots (>=1.3). Generate your plot in MATLAB. Sometimes, MATLAB makes it hard to create matching LaTeX plots by keeping invisible objects around or stretches the plots too far beyond the bounding box. Use to first clean the figure of unwanted entities, and then convert it to TeX.

How are the colors specified in a surface plot?

Specify the colors for a surface plot by including a fourth matrix input, C. The surface plot uses Z for height and C for color. Specify the colors using a colormap, which uses single numbers to stand for colors on a spectrum.

How to change the location of the color bar?

colorbar(location) displays the colorbar in a specific location such as ‘northoutside’. Not all types of charts support modifying the colorbar location. colorbar(___,Name,Value) modifies the colorbar appearance using one or more name-value pair arguments. For example, ‘Direction’,’reverse’ reverses the color scale.

How to plot the surface in Matplotlib Python?

The code reads: The code works great to plot the surface. But when I try to add a colorbar to the above plot, I get the following error:

Can a 2D surface plot a 3D surface?

Disclaimer: I already read questions like 2D surface on a 3D surface plot external data in a file and 3D surface plots in TikZ but these did not solve my problem.

How to plot in MATLAB Using data from a txt file?

All I did so far was this: Which just reads the first value, 83743. note the parsing of the date into C: first is the date as given by you in dd-MM-yyyy format, which I flip to the official standard of yyyy-MM-dd, then your hour, which needs to be divided by 100, then a 0 for both minutes and seconds.

Can you plot a graph from a file?

I need to read data from a file and plot a graph with its data. The problem is: (2) The format contains information and characters that I don’t know how to deal with. What I’m trying to do is to plot the Date and Time against Temp1 and Temp2, not worrying about Pressure.