Surf Matlab Axis

MATLAB is a very practical and powerful tool for solving many different types of problems, and you should appreciate this more after going through some of the demos. Solving a system of equations. quiver3(,'PropertyName',PropertyValue,) specifies property name and property value pairs for the quiver chart that the function creates. Here's how one can use those colors in MATLAB. This command sets the ZLimMode property for the axes to 'auto'. 3D Graphics in MATLAB We'll introduce different types of plotting in 3D. But surf is designed for Cartesian coordinates and the dimensions don't work out correctly to simply do surf(sph2cart(theta, phi, r)). The part that I like most is that it will work with irregular-grid subplots (see example below). When I run the example you gave here, the x and y axis labels were fine, but when I run the following codes: figure X = linspace(0,1,10);. >> surf(x,y,z) In most installations you can manipulate the plot with the mouse. Same for a grayscale image - it has two indexes, row and column, so it's 2D. • WHAT MATLAB IS NOT. MATLAB always maps the minimum CLim value to the first color in the colormap and the maximum CLim value to the last color in the colormap, whether or not there are really any. js, and webgl, no plugins or downloads are required. axis square makes the current axes region square (or cubed when three-dimensional). I need some help moving an image in Matlab and I'm not sure where to start. points = detectSURFFeatures(I) returns a SURFPoints object, points, containing information about SURF features detected in the 2-D grayscale input image I. Plotting in 3D in MATLAB SnugglyHappyMathTime. However, you can specify these values manually by setting the appropriate property. Surf plot: Data dimensions must agree. An overview of contour, mesh, plot3, and surf. Wednesday, April 15th, 2015 Reference page in Help browser doc view >> surf Backdrop - Matlab HG2 axes can be. axis([Xmin Xmax Ymin Ymax]) To copy a figure (plot) to the clipboard in Windows metafile format, type print –dmeta in the matlab. and Matlab will translate. ^2; % surface plot surf other 3D objects in MATLAB Klein bottle. MATLAB menetapkan harga maksimum dan minimum data untuk memilih batas sumbu untuk membuat jangkauan batas. This command sets the ZLimMode property for the axes to 'auto'. The scaled color values are used as. This is alright, but I'd like to compare plots from multiple runs of my model, which means that if the range of the 4th variable changes then a particular shade in one plot does not correspond to that same shade in. another reason for using m-files. movie(M,n,fps) plays the movie at fps frames per second. cla deletes all graphics objects that have visible handles from the current axes. The LabelFontSizeMultiplier property of the axes contains the label scale factor. Reader Evan suggested in the comment section of the previous post with this method I am essentially using two different color parameters, the RGB triplet and the transparency, to display one element of data, the gravity residual “elevation”, and that the slope is shown already in the gradient of the colors. The ZLIM command changes the range of the z-axis shown (you can likewise use XLIM and/or YLIM). 1 1 Written By: Yair Moshe Technion – Electrical Engineering Department Signal and Image Processing Laboratory May 2004 2 GUI with Matlab - Outline. If the current axes are empty, then the legend is empty. Learn more about axis, surf, z-axis MATLAB. The axis (not axes) function provides simplified access to commonly used properties that control the scaling and appearance of axes. MATLAB enables you to specify any values for the axes CLim property, even if these values do not correspond to the CData of the graphics objects displayed in the axes. The hold command allows users to add multiple plots to the same axis. please see figure (a surf plot without mesh) probability distribution @ time point. surfc Same as surf with contour plot underneath. , as in the original). The mapping from C to the current colormap is defined by colormap and caxis. Axes オブジェクトまたは PolarAxes オブジェクトを指定できます。座標軸を指定しない場合、axis により現在の座標軸 (gca) の範囲が設定されます。 座標軸を指定するときには、それ以外の文字ベクトルの入力引数を一重引用符で囲みます。 例: axis(ax,'tight'). Now, also Y axis not starting from one, however the first value is started from 1. i have data and i need to draw them in matlab x=is angles(0 30 60 90 120 360) y=is results (1 6 8 4 ) how can i draw them in regtangular polar mesh surf i dont know about matlab that much could any one help me in it knowing that these are for antenna half wave dipole antenna thanks friends and plz if u have any word about the subject plz tell me i need every information thanks. You can manually specify the range of the axes for x and y by using axis([xmin xmax ymin ymax]). When I took a course in grad school on statistical image processing, I saw a very interesting plot where data is shown as a surf plot and underneath, on the ground or x-y plane, an image is shown. Adding text and legend. Use this option if you change the limits and then want to set them back to the default values. pcolor(C) draws a pseudocolor plot. You can use the object to fill the points interactively. Whether it's for research, a school assignment, or a work presentation, 3-D plots are great for visualizing what a complicated set of data looks like. The following code makes a plot of the. Display the colorbar and use a IPUcolormap. 0) libraries for BRISK, ORB, FREAK, and SURF Methods. The control file is used to call the cube_plot. You can help. How can I insert xyz label and title in 3D plotting. How do I add 2 Y axis to my MATLAB Plot?. The value lies between 0 and 1. I need some help moving an image in Matlab and I'm not sure where to start. Use this option if you change the limits and then want to set them back to the default values. For example, See Also. The MarkerStyle1, MarkerStyle2, and LineStyle values correspond to the marker specification in I1, marker specification in I2, and line style and color. One of the easiest and most visually pleasing ways of plotting three-dimensional data onto a 2-D surface is imagesc. This MATLAB function sets the z-axis tick labels for the current axes. The Axes chapter in the Using MATLAB Graphics. Adding axes labels, titles. share | improve this question. When the data aspect ratio mode is auto, MATLAB adjusts the data. I'm working on a model which develops some surfaces in spherical coordinates which I would like to plot. Now, also Y axis not starting from one, however the first value is started from 1. The function plots the values in matrix Z as heights above a grid in the x-y plane defined by X and Y. Learn more about surf, plot, color, axis MATLAB. Note that graphing the more refined points would be a bad idea - there are now over one million nodes and MATLAB will have a hard time rendering such a surface. Generates portable C code using a C++ compiler that links to OpenCV (Version 3. By default, the axes font size is 10 points and the scale factor is 1. com/t/matlab-plotting-mini-. In case you didn't know, MATLAB allows you to quickly take a MATLAB script and publish a formated report (HTML, Word, LaTeX, XML, PPT), where the figures are automatically converted to various graphics format, including EPS. I need some help moving an image in Matlab and I'm not sure where to start. The instructions provided include tools to plot wire-frame objects, 3D plots, curves, surfaces, etc. Introduction to Matlab Isaac Tetzloff - [email protected] I have allowed two options in the UI. Asked by sermet. A better solution is to have MATLAB read the file without destroying the labels. The legend automatically updates when you add or delete data series from the axes. My problem is that the plot comes up with the axes corresponding to the indexing location (row #, column. How to make a graph with multiple axes in MATLAB ®. for whatever reason I cannot come up with I am not able to plot a surf figure I have generated in MATLAB and then converted to tikz using the script available here. The x-axis tick marks should be at points with coordinates. I have already made a mesh grid of my x and y but I am confused on how to plug my gaussian function in as Z. Hello, I try to understand the workings of the spectrogram function by reproducing the same plot that the spectrogram function gives by using the output parameters of the spectrogram function. hist Aggregates the data into equally spaced bins. Just put a sensible scale that's suitable for reading the graph, and if you need to label the data points then do that on the data points, not on the axes. The FontSize property of the axes contains the axes font size. Mostrar líneas de eje a través de Origin. The part that I like most is that it will work with irregular-grid subplots (see example below). Hi everyone, I have been trying to add axis to a surf plot i have. a systematical matlab plotting tutorial - 09. I need some help moving an image in Matlab and I'm not sure where to start. Here is one proper solution based on the integrated function patch in MATLAB. The limits span the range of the plotted data. Learn more about surf, colorbar MATLAB. and can automatically generate contours, display volumetric data, interpolate shading colors and even display non-Matlab made images. matlab provides many useful instructions for the visualization of 3D data. start() doc help -i % browse with Info: Browse help interactively: help() help help or doc doc: Help on using help: help(plot. MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and proprietary programming language developed by MathWorks. What follo ws is a v ery brief description of three options (m ultiple graphs in one windo w, c hanging the viewp oin t for 3-D plots, and con trolling axes). The full. for whatever reason I cannot come up with I am not able to plot a surf figure I have generated in MATLAB and then converted to tikz using the script available here. XLimMode, YLimMode, and ZLimMode change to 'auto'. Always include axis labels that have, when appropriate, units. By default, the x-axis and y-axis appear along the outer bounds of the axes. As Z I have 5*7 measured values. This can be useful for a variety of things but when I first learned about it, I was a bit confused by how the axes seem to be flipped sometimes when you do this. Dobrushkin,Lippitt Hall 202C, 874-5095,[email protected] Whether it's for research, a school assignment, or a work presentation, 3-D plots are great for visualizing what a complicated set of data looks like. In the first experiment, we are going to work with a sphere and are going to rotate our view angle without changing any size. The complex plane has a real axis (in place of the x-axis) and an imaginary axis (in place of the y-axis). and Matlab will translate. If you do not specify separate color data (C), MATLAB uses the matrix (Z) to determine the coloring of the. Use this option if you change the limits and then want to set them back to the default values. Looks like you solved your problem with the dates, but just as a note, normally axes don't need irregular tick marks. surf(X,Y,Z) creates a three-dimensional surface plot, which is a three-dimensional surface that has solid edge colors and solid face colors. I have allowed two options in the UI. MATLAB provides documentation for all of their built in functions. It does not matter if you display it as a 2D flat gray scale image or as a surface where the height above some plane is proportional to the value of the image (the gray level) at that point -- it's still a 2D variable no matter that it looks "3D-ish" when plotted with surf. [X,Y,Z] = peaks; surf(X,Y,Z) grid off. In our example, you can plot surf(x) just as happily. How do I change height and colour of cylinder made with SURF? we can use Matlab to plot a cylinder using surf be to change the viewpoint and relabel the axes :). The function plots the values in matrix Z as heights above a grid in the x-y plane defined by X and Y. Histogram Functions bar Creates a bar chart. Your first suggestion works well to solve the z axis label problem that I had. Calling the function isAllowAxesRotate on the rotate3d object, h, with a vector of axes handles, axes, as input will return a logical array of the same dimension as the axes handle vector which indicate whether a rotate operation is permitted on the axes objects. Plot of spheres in Matlab created using the 'sphere' function. Matlab graphics. A better solution is to have MATLAB read the file without destroying the labels. cylinder treats its first argument as a. Anatomía de las gráficas en MATLAB El entorno MATLAB ofrece una variedad de funciones para gráfica de datos además de herramientas de GUI para crear y modificar la visualización de las gráficas. Hover over values, scroll to zoom, click-and-drag to rotate and pan. Supports MATLAB ® Function block for BRISK, FREAK, and SURF methods only. Color axis of surf plot. [X,Y,Z] = peaks; surf(X,Y,Z) grid off. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. how to make fft2 surf plot with z axis in dB?. Originally meant to be used with image data, this function is. I have 3 matrices:. MATLAB is a very practical and powerful tool for solving many different types of problems, and you should appreciate this more after going through some of the demos. Use this option if you change the limits and then want to set them back to the default values. Learn more about surf, colorbar MATLAB. Learn more about surf, plot, color, axis MATLAB. • surf(X,Y,Z,C): is the same as mesh. MATLAB EXAMPLES 189. The scaled color values are used as. caxis ans = 1 192 The blue color of the ocean is the first color in the colormap and is mapped to the lowest data value (1). The next three lines all modify the axes, changing the labels and the title. Hover over values, scroll to zoom, click-and-drag to rotate and pan. The first subplot is the first column of the first row, the second subplot is the second column of the first row, and so on. cylinder generates x-, y-, and z-coordinates of a unit cylinder. It can also be used to manipulate and plot the data returned by these functions. 3D graphs - plots and volumes in Matlab. The control file. The facilities include built-in functions for plotting wire-frame objects, space-curves, shaded surfaces. Color axis of surf plot. We want to rotate a plot (3D), by hand using "rotate3d on", to our desired viewpoint, and then save that rotation to be applied exactly the same to all future plots. Adding axes labels, titles. Here's how one can use those colors in MATLAB. Figures can contain menus, toolbars, user-interface objects, context menus, axes, or any other type of graphics object. You can use solve to solve a system of equations. Unlike high-level area creation functions, such as surf or mesh, surface does not respect the settings of the figure and axes NextPlot properties. Histogram Functions bar Creates a bar chart. You can plot the data in a 2-D or 3-D view using either a linear or a logarithmic scale. Any and all help would be much appreciated, thanks!!. Therefore, you need to perform a translation so that the intended axis of rotation is temporarily at the origin. quiver3(,'PropertyName',PropertyValue,) specifies property name and property value pairs for the quiver chart that the function creates. F = getframe gets a frame from the current axes. See Normalize Data with Differing Magnitudes for more information. rotate(h,direction,alpha) rotate(,origin) Description. Set these properties to either 'on' or 'off'. matlab provides many useful instructions for the visualization of 3D data. showMatchedFeatures(___,PlotOptions, {MarkerStyle1, MarkerStyle2, LineStyle}) lets you specify custom plot options in a cell array containing three values. Get the inside view on MATLAB and Simulink Insights and information from the engineers who design, build and support MathWorks products Subscribe to All Blogs Meet the Bloggers. Open Mobile Search. However from the surface plot you can see that the z-axis does not remain the same for these 4 plots. This MATLAB function plots vectors with directions determined by components (u,v,w) at points determined by (x,y,z). daspect sets or queries values of the axes object DataAspectRatio and DataAspectRatioMode properties. exploring Plot Features, Plot editing, and tricks to present plots in best way while documentation …. Learn more about surf, colorbar MATLAB. I'm working on a model which develops some surfaces in spherical coordinates which I would like to plot. The matrix contains a series of values intended to be plotted at specified (x,y) coordinates. We would now like to start covering techniques for plotting three-dimensional data. Matlab graficos3 d 1. zlim auto sets an automatic mode, enabling the axes to determine the z-axis limits. Looks like you solved your problem with the dates, but just as a note, normally axes don't need irregular tick marks. MATLAB menetapkan harga maksimum dan minimum data untuk memilih batas sumbu untuk membuat jangkauan batas. Use this option if you change the limits and then want to set them back to the default values. So if the z axis runs from 0 up to 2 the hull goes from 2 down to 1. Multiple Axes in MATLAB ®. 2-D plots The basic command for making a 2-D plot is "plot". another reason for using m-files. if you do not want MATLAB to create an axes if one does not already exist. This MATLAB function sets the z-axis tick labels for the current axes. In 2 dimensions, you can give the command axis([xmin xmax ymin ymax]) and in 3 dimensions, you can give the command axis([xmin xmax ymin ymax zmin zmax]) to set the range on the axes. When using hold on, you should only use it after the rst plot command has been issued. The function plots the values in matrix Z as heights above a grid in the x-y plane defined by X and Y. The Colormap property of Figure graphics objects. here i am only going to plot one channel, and it is a vector. Especifique el modo como manual, auto o una de las opciones semiautomáticas, como 'auto x'. Draw axis on 3D-object surface. axes, cla, gcf, findobj. Create a 3-D scatter plot and use view to change the angle of the axes in the figure. 'Surf' and 'Mesh' are two functions that generate. The limits span the range of the plotted data. The handle is visible if the HandleVisibility property of the object is set to 'on'. You will see updates in your activity feed; You may receive emails, depending on your notification preferences. If you have ever struggled with the label alignment issue in MATLAB's 3-D plots --- by default axis labels are placed horizontally no matter how you rotate the plot --- here is a simple fix. In exploring surf, I can't wrap my head around how to implement meshgrid. MATLAB Answers. IAP 2006 Introduction to MATLAB: Graphics MATLAB Help Browser MATLAB + Graphics + MATLAB Plotting Tools + Annotating Graphs + Basic Plotting Commands + Figure Properties + Axes Properties + 3D Visualization + Creating 3D Graphs Other Toolboxes. You may want to be more specific in controlling formatting, though, in which case you can use num2str to force a given format (like for values such as 8192 and greater you can write as '8K', etc. MATLAB always maps the minimum CLim value to the first color in the colormap and the maximum CLim value to the last color in the colormap, whether or not there are really any. MATLAB Tutorial Chapter 3. MATLAB enables you to specify any values for the axes CLim property, even if these values do not correspond to the CData of the graphics objects displayed in the axes. Toggle Main Navigation. If axes do not exist, then this command creates them. This file can be used to set the figure's default view in the PDF to be the same with the open figure window in MATLAB. MATLAB/Octave Python Description; doc help -i % browse with Info: help() Browse help interactively: help help or doc doc: help: Help on using help: help plot: help. I need some help moving an image in Matlab and I'm not sure where to start. Set the axis to xy (JNBHFTD, DPMPSNBQ, DPMPSCBS, BYJT) • In the bottom axis of the subplot, plot the 3-D surface of Z (TVSG) 37. cylinder treats its first argument as a. With the linked axes option, I use the maximum value of either data set to set the z axis extents for both data sets. This MATLAB function creates a primitive, three-dimensional surface plot. Looks like you solved your problem with the dates, but just as a note, normally axes don't need irregular tick marks. how to make fft2 surf plot with z axis in dB?. Un trazado (plot. ejemplo axis ydirection , donde ydirection es ij , coloca el origen en la esquina superior izquierda de los ejes. and can automatically generate contours, display volumetric data, interpolate shading colors and even display non-Matlab made images. A solid of revolution is generated when a function, for example y = f(x), rotates about a line of the same plane, for example y = 0. Generates portable C code using a C++ compiler that links to OpenCV (Version 3. Swap axis in 3d figure. Matlab graficos3 d 1. >> contour(x,y,z,20) Or a 3D plot with 20 contour curves >> contour3(x,y,z,20) Final Comments This is just the tip of the plotting iceberg. Toggle Main Navigation. Plotting multiple sets of data on the same axes is a useful feature of Matlab. How to change surf function axis values to not Learn more about surf, array, index, axes, axis, range, limits This is a Matlab forum and questions about Matlab. The current axes is the target for graphics output when you create axes children. • surf(X,Y,Z,C): is the same as mesh. Hi everyone, I have been trying to add axis to a surf plot i have. How do I control axis tick labels, limits, and Learn more about axis, axes, tick, ticklabel, mode, manual, location, limit, limits, xticklabel, yticklabel MATLAB. i really don't understand what you explained in the topic "Set Ydata in matlab". Understanding the Color Matrix Input in surf(). Solving a system of equations. [X,Y,Z] = peaks; surf(X,Y,Z) grid off. We would now like to start covering techniques for plotting three-dimensional data. But the x and y axis label alignment issue still exists. i intend use matlab plot probability distribution stochastic process on state space. Following labels the axes and creates a title. You may want to be more specific in controlling formatting, though, in which case you can use num2str to force a given format (like for values such as 8192 and greater you can write as '8K', etc. share | improve this question. Title and Axis Labels. • MATLAB® is a very popular language for technical computing • Used by students, engineers, and scientists, research institutes, and industries all over the world. Tools for Axis Label Alignment in MATLAB. Color axis of surf plot. Function File: caxis ([cmin cmax]). The detectSURFFeatures function implements the Speeded-Up Robust Features (SURF) algorithm to find blob features. Supports MATLAB ® Function block for BRISK, FREAK, and SURF methods only. Matlab provides many facilities for visualization of 3D information or data (x, y, z). If you do not specify separate color data (C), MATLAB uses the matrix (Z) to determine the coloring of the. The Z-values for the axis command, 0 to 25, we found by plotting without this command and seeing how MatLab itself scaled the axes. MATLAB performs a linear transformation on this data to obtain colors from the current colormap. showMatchedFeatures(___,PlotOptions, {MarkerStyle1, MarkerStyle2, LineStyle}) lets you specify custom plot options in a cell array containing three values. axis([xmin xmax ymin ymax]) Sets scaling for the x- and y-axes on the current plot. wa Matlab code to calculate the potential of line cha Matlab code to plot field for 2 point charges; Matlab code to calculate Magnetic Flux of solenoid. cla deletes all graphics objects that have visible handles from the current axes. Asked by sermet. Specifying the figure or axes enables MATLAB ® to fit the movie to the available size. In our example, you can plot surf(x) just as happily. In 2 dimensions, you can give the command axis([xmin xmax ymin ymax]) and in 3 dimensions, you can give the command axis([xmin xmax ymin ymax zmin zmax]) to set the range on the axes. There is a property called alpha. We’re going to show some simple experiments in Matlab to create 3D graphs by using the built-in function ‘cylinder’. In Matlab complex numbers can be created using x = 3 - 2i or x = complex(3, -2). Rotations are performed about the origin. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Understanding the Color Matrix Input in surf(). x y Cambie la ubicación de las líneas del eje para que se crucen en el punto de origen estableciendo las propiedades del objeto. The LabelFontSizeMultiplier property of the axes contains the label scale factor. The limits span the range of the plotted data. When using hold on, you should only use it after the rst plot command has been issued. For outputs to paged formats, for example, PostScript and PDF, the page size is specified by the figure’s papersize property together with the paperunits property. Is there a method to get/save the current rotation of a surf plot. another reason for using m-files. Matlab provides many facilities for visualization of 3D information or data (x, y, z). you should either try to filter your data in matlab, or create a plot with no axes in matlab and with a defined viewport and make the graph the right size, save it as png picture and then add the axes in your socument with pgfplots. axis([xmin xmax ymin ymax]) atau untuk gafik tiga dimensi, axis([xmin xmax ymin ymax zmin zmax]) Gunakan perintah axis auto agar MATLAB secara otomatis mengatur pemilihan batas. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. However, there's a caveat that it only works on axes created using subplot. %I wanna insert xyz axis and title for this figure 1 with codes. MATLAB performs a linear transformation on this data to obtain colors from the current colormap. In this tutorial, I am decribing the classification of three dimentional [3D] MATLAB plot. That is, if the range of the 4th variable is [2,3], then surf() will use values of 2 as very deep blue and 3 as a bright yellow. MATLAB is a very practical and powerful tool for solving many different types of problems, and you should appreciate this more after going through some of the demos. Use this option if you change the limits and then want to set them back to the default values. This example shows how to rotate an object about an arbitrary axis. I am not an expert at all in Matlab. Originally meant to be used with image data, this function is. Figures can contain menus, toolbars, user-interface objects, context menus, axes, or any other type of graphics object. For example, See Also. We want to rotate a plot (3D), by hand using "rotate3d on", to our desired viewpoint, and then save that rotation to be applied exactly the same to all future plots. Below is what I've tried with drawing a circle, but only a few points are showing up. Gráficos 3D en MATLAB Pedro Corcuera Dpto. Adding axes labels, titles. It simply adds the surface object to the current axes. Skip navigation Sign in. The limits span the range of the plotted data. Matlab code to calculate and plot pulses on a loss Matlab code to calculate the voltage on the trans MatLab function to plot Amplitude Envelopes of. axis auto sets MATLAB to its default behavior of computing the current axes limits automatically, based on the minimum and maximum values of x, y, and z data. Now, also Y axis not starting from one, however the first value is started from 1. Hello, I try to understand the workings of the spectrogram function by reproducing the same plot that the spectrogram function gives by using the output parameters of the spectrogram function. How can I insert xyz label and title in 3D plotting. R/S-Plus MATLAB/Octave Description; help. The limits automatically update to incorporate new data added to the axes. How to adjust axes properties in MATLAB ®. The Matlab documentation recommends that a power of 2 be used for optimal computation time. This command creates a legend for the current axes or chart returned by gca. The Matlab function 'sphere' generates the x-, y-, and z-coordinates of a unit sphere for use with 'surf' and 'mesh'. This MATLAB function generates a surface mesh described by three n+1-by-n+1 matrices, enabling surf(x,y,z) to plot an ellipsoid with center (xc,yc,zc) and semi-axis lengths (xr,yr,zr). The function plots the values in matrix Z as heights above a grid in the x-y plane defined by X and Y. The official color for Loyola Green is given as RGB:0-104-87, and Loyola Gray is given as RGB:200-200-200 (found on Loyola's Logos/University Signature page. Matlab code to calculate and plot pulses on a loss Matlab code to calculate the voltage on the trans MatLab function to plot Amplitude Envelopes of. 'Surf' and 'Mesh' are two functions that generate. However from the surface plot you can see that the z-axis does not remain the same for these 4 plots. Just put a sensible scale that's suitable for reading the graph, and if you need to label the data points then do that on the data points, not on the axes. This is alright, but I'd like to compare plots from multiple runs of my model, which means that if the range of the 4th variable changes then a particular shade in one plot does not correspond to that same shade in. Orient this surface with respect to the axes ( rotate ). One solution is the file readColData. Unlike high-level area creation functions, such as surf or mesh, surface does not respect the settings of the figure and axes NextPlot properties. You may want to be more specific in controlling formatting, though, in which case you can use num2str to force a given format (like for values such as 8192 and greater you can write as '8K', etc. Three-dimensional plots (or 3D graphs) can be created by this numerical software. I am getting the following errors:! Package pgfkeys Error: I do not know the key '/tikz/axis lines' and I am goin g to ignore it.