If X and Y are matrices, MATLAB draws one polygon per column. To change color and transparency all you have to write in example:Insert hold off in between plots so that new plots clear the old ones. The RGB triple is a three-element row vector whose elements specify the intensities of the red, green, and blue components of the color; the intensities must be in the range [0 1]. fill3 (X, Y, Z, C) // It fills three-dimensional polygon. you can normalize by the global maximum value of the triangles in the fill3 line. How can I also specify the border line color?Description. Sign in to comment. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. . To create a 2D logical image of a solid circle (a disc), you can use code like this: % diameter, center, and image size. It can be a single ColorSpec, one color per face, or one color per vertex (see "Remarks"). This page also shows you how to do it with patch (). The loop runs in parallel when you have the Parallel Computing Toolbox™ or when you create a MEX function or standalone code. On the left hand side there is a clear figure which is I would like to obtain. The fliplr command is used to make sure the surface vertices are in the correct order. If C is a row vector, length (C) must equal size (X,2) and size (Y,2); if C is a column vector, length (C) must equal size (X,1) and size (Y,1). collect all these values, find the global max and min values. This table classifies and illustrates the common graphics functions. Series index, specified as a positive whole number or "none". fill3. ylabel ( ___,Name,Value) modifies the label appearance using one or more name-value pair arguments. 3. 此 MATLAB 函数 将填充多边形区域绘制为补片，其顶点位于由 X 和 Y 指定的 (x,y) 位置。 要绘制一个区域，请将 X 和 Y 指定为向量。 要绘制多个区域，请将 X 和 Y 指定为矩阵，其中每列对应一个多边形。. shading faceted flat shading with superimposed black mesh lines. The [x;x]. Plotting 3D cone using gnuplot of user data file. Q&A for work. fill3 (X,Y,Z,C) plots filled polygonal regions on 3-D axes as Patch objects with vertices at the ( x, y, z) locations specified by X, Y, and Z. ) fill(. So one call per end of the cylinder. [X,Y,Z] = peaks; figure contourf (X,Y,Z,20) colormap (hot) title ( 'Hot Colormap')fill3() does not fill between planes. To change color and transparency all you have to write in example:Learn more about 3d plots MATLAB Hi, I am trying to create a 3D representation of a rectangle using 8 coordinates of (x,y,z). Patches can be specified using any of the input argument combinations in previous syntaxes. fill3(X,Y,Z,C) fills three-dimensional polygons. 01:2); ineq = (x>=1)& (y>0. I am not sure if this is because I am misunderstanding how data is stored in the fill3. Commented: ml Lin on 25 Jun 2015. please take a look to my code. ); h. Matlab plotting only every Xth point. Reissuing the ylabel command causes the new label to replace the old label. 7]) shape in a figure, which I generate using "fill. The function can plot one or more regions, customize. If C is a 1-by-3 vector, it is assumed to be an RGB triplet, specifying a color directly. direction is a two- or three-element vector that describes the axis of rotation in conjunction with the origin of the axis of rotation. zlabel (txt,Name,Value) additionally specifies the text object properties using one or more Name,Value pair arguments. fill3(X,Y,Z,C) fills three-dimensional polygons. Synopsis fill3(X,Y,Z,C)fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. png slices and creates 3D models from the slices. [B] = bwboundaries (binaryImage_new,'holes'); I then used fill3 to draw the plots in 3D and cover the empty white spaces with a cyan colour and the whole process loops again with a new slice. Example: x=0:0. You have scattered 3d points, surf is made for rectangular grid data. Polar Plots. 0. . fill3 closes the. Denote these values as gmax, gmin, then we can normalize the entire data set according to these values. Specify the colors using a colormap, which uses single numbers to stand for colors on a spectrum. You define a patch by specifying the coordinates of its vertices and some form of color data. example. g. patch (X,Y,C) adds the filled two-dimensional patch to the current axes. 86] z = [0,-2. Los triples X, Y y Z especifican los vértices del polígono. Find the treasures in MATLAB Central and discover how the community can help you! Start Hunting! An. Here's a small example for an arbitrary line. What this implies you can retrieve the XData and YData coordinates of the first child of the output of viscircles, get rid of the nan at the end, and fill () 'color', 'r'); xd = h. Specify value as 'clear' or 'opaque', or as a number in the. Use airSlate automation to take team performance to the next level. To change color and transparency all you have to write in example: Theme. Then display grid lines in the bottom plot by passing ax2 to the grid function. When the SeriesIndex value is a number, MATLAB uses the number to calculate an index for automatically assigning colors when you call plotting functions. The plot3 calls draw circles around the tops of them to make the edge more visible. A value of 0 makes the objects transparent, and value of 1 makes the objects fully opaque. i have a separate line along which i have to plot the cone). Use dot notation to query and set properties. . hatching) is difficult if not impossible, an alternative is to simply adjust the alpha transparency of the filled patch. Include a third data input to vary marker size and represent a third dimension. BW = poly2mask (xi,yi,m,n) computes a binary region of interest (ROI) mask, BW, of size m -by- n, from an ROI polygon with vertices at coordinates xi and yi. with the following properties: * EDGES : 3-elements vector that defines the length of cube edges. Copy. Description. Función de función rectangular: crea un objeto rectangular bidimensional. See below for a comparison of those three cases with painters vs the default OpenGL Renderer. I have a function that plots a circle in 3d if given the center the normal of the circle and the radius. Each object corresponds to a different column of Y. I'm going to plot these two Bessel functions. Please see attached file. Skip to content. See the help for EZMESH. The distinction between row and column vectors is crucial. It is my understanding that you want to generate a similar shape by using “surf” plot as “fill3” plot does but i t is p ossible that the surface plotted by the surf function appears different from the surface plotted by fill3 because they use different algorithms to generate the surface. Copy. Patrik Ek on 3 Mar 2014. (Lets call it A, also it is sorted according to A(:,1) )The third column is an additional number which ranges from 1 to 100. Usa la función rectángulo para dibujar un círculo. Assign the colormap to your axes, and then use the rows of the colormap to assign color to each patch. However, when using the fill command, I find it's filling up unwanted spaces. C specifies color, where C is the vector or matrix. We can avail ourselves of this in the following way: Define user data: x = 1:10; y = 5*rand (size (x)) + 2. fill3 (X,Y,Z,C) plots filled polygonal regions on 3-D axes as Patch objects with vertices at the ( x, y, z) locations specified by X, Y, and Z. Call the tiledlayout function to create a 2-by-1 tiled chart layout. joyPlot - Ridgeline data representation. Specify h as a surface, patch, line, text, or image object. Facealpha bug in combination with 3D plots. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. Learn more about fill3, transparent polygonsfill (X1,Y1,C1,. The modal parameter data is combined with the sensor position information to visualize the various bending modes of the wing. Connect and share knowledge within a single location that is structured and easy to search. MATLAB-仅在绘制完所有内容后才显示图形,matlab,plot,Matlab,Plot,我试着画一个二维有限元解，一个三角形一个三角形地画，就像这样： for i=1:K figure (1) fill3 (x,y,z,c) hold on end 问题是，当我运行代码时，它会实时绘制所有三角形，这样我就可以看到绘制的每个三角形. The fill3 command can be used to create the surface between your line and the y-axis. Here's a small example for an arbitrary line. This code plots the plane spanned by any v1 and v2. 6)&(x+z>1. Suppose you have multiple measurement series with mean, max and min for each data point. )Answers (1) Image Analyst on 28 Sep 2015. write data to a new image with transparent background): % name the input and output files im_src = 'im0. MATLAB Graphics Formatting and Annotation 3-D Scene Control Lighting, Transparency, and Shading. ,' PropertyName',PropertyValue) h = fill. The elements of specify the vertices of a polygon. mat, which includes the variables direction, speed, humidity, and C. zlabel (ax, ___) adds the label to the axes specified by ax. fill3 (X, Y, Z, C) Rellena el polígono tridimensional. Plot the surface defined by the triangulation. Since R2023b. Here is a snippet from a piece of my code which plots orbits of three celestial bodies which I think will help you: for i = 1:j, %j is an arbitrary number input by the user plot(x, y, '*') plot(x2, y2, 'r') plot(xa, ya, '+') grid on drawnow %drawnow immediately plots the point(s) hold on %hold on keeps the current plot for future plot additions %dostuff to x,y,x2,y2,xa,ya end Patch appearance and behavior. 2D plots cannot be plotted at 3D locations. You have to change the x-values in your plot, or you can change the axis labels. fill3(X,Y,Z,C) fill3(X,Y,Z,ColorSpec) fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. Use the “hold on” command to plot the two lines separately. g. To plot one region, specify X, Y, and Z as vectors. alpha alphadata varies the transparency across all image, patch, surface, and. 7:0. Postscript. it is already filled, let me explain: when you generate a surface with commands like fill3 patch surf surface. Use this argument to control the color mapping of the isosurface with data different from that used to calculate the isosurface. The example below plots the random markers in a transparent red with 10% opacity by setting FaceColorData to uint8 (255* [1;0;0;0. I'm writing code in which I use MATLAB's fill command to plot 2D shapes. Creating MATLAB 3d plot. This function is an improvement over the CLINE function previously made available on TMW File Exchange. Q&A for work. X, Y, and Z triplets specify the polygon vertices. polar accepts only one pair of theta and rho inputs. First, specify the transparency values by setting the AlphaData property to an array the same size as the ZData property. 1 Answer. the function uses the plot3 command. So far I have been able to generate a rectangular surface using fill3 command the following string of c. Also i want the circle to be transparent (i think alpha command ) Please help. . . The fourth vector is the mid edge. 0. Fill (X1, Y1, C1, X2,. Copy. gm = multicuboid (W,D,H,Name,Value) creates a multi-cuboid geometry using one or more Name,Value pair arguments. Specify h as a surface, patch, line, text, or image object. 3. Create a set of 3-D points and compute the Delaunay triangulation using the delaunay function. Return the two “Line” objects as an output argument from the “plot” function and then set the “LineWidth” property for each. There are four vertices, and the data is represented as three vectors. R2021a: The XData, YData, and ZData properties on Patch objects created with the fill and fill3 functions return values of the original data type The XData , YData , and ZData properties on a Patch object created by the fill or fill3 functions return the coordinates using the original input data type, rather than returning them as double values. To do that, I have first cropped the object from the images and then planning to use scatteredinterpolant function to get the interpolated plane in between these two images. determines the color of the patch. Patches support a variety of coloring options that are useful. Filled three-dimensional polygons. Synopsis fill3(X,Y,Z,C)fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. Although creating a pattern (i. When attempting to change parameters like transparency and face colour, it can get confusing, so let's simplify. I want the border line color the same as the fill color. Well, I did mention how to do that, but only briefly. I have attached here the depth images and the cropped images and a. Description. h2=fill3(X,Y,Z,[0 0 1]) note that the order of introduction of points matters, if you jump to an opposite vertex the square will look like a bow tie. fill3 (X,Y,Z,C) plots filled polygonal regions on 3-D axes as Patch objects with vertices at the ( x, y, z) locations specified by X, Y, and Z. Edited: Patrik Ek on 3 Mar 2014. Specify the axes as the first input argument. This MATLAB function plots filled polygonal regions as patches with vertices at the (x,y) locations specified by X and Y. Learn more about 3d plots MATLAB. Copy. fill3(___,Name,Value) modifies the Patch objects using one or more name-value arguments to set properties. The fill3 function creates flat-shaded and Gouraud-shaded polygons. Discrete Data Plots. Description. 6. Skip to content. Add a second rectangle that has the shortest side completely curved by specifying the curvature. fill3 (points (1,:), points (2,:), points (3,:), 'b') colors the circle shape in blue. The fill3 function creates flat-shaded and Gouraud-shaded polygons. Apparently, putting 'figure(1)' inside the loop makes a huge difference. Tested Example A number of numbers are given in the left corner of the. 01:2,0:0. That eliminates the if test each pass at the cost of a little code upfront that duplicates that in the loop. Specify value as 'clear' or 'opaque', or as a number in the range [0, 1]. FaceVertexCData=Color {tt}; Comes from the documentation of fill3, which states that the fill3 command creates a patch object. fill3 command working strangely?. So i want to find a way to fill. If X, Y, or Z is a matrix, fill3 develop n polygons, where n is a number of. If potential cannot verify that V is a gradient field, it returns NaN. [B] = bwboundaries (binaryImage_new,'holes'); I then used fill3 to draw the plots in 3D and cover the empty white spaces with a cyan colour and the whole process loops again with a new slice. fill3 (X, Y, Z, C) // It fills three-dimensional polygon. . Theme. Editor's Note: This file was selected as MATLAB Central Pick of the Week. com Create filled 3-D patches - MATLAB fill3. What this implies you can retrieve the XData and YData coordinates of the first child of the output of viscircles, get rid of the nan at the end, and fill () 'color', 'r'); xd = h. Inconsistent results when increasing number of. fill3 sets the patch object FaceColor property to flat, interp, or a ColorSpec depending upon the value of the C matrix. So you can create a polygon out of your lines by going along your first curve than coming back along your second curve. If X, Y, or Z is a matrix, fill3 creates n polygons, where n is the number of columns in the matrix. t = 0:0. Learn more about plot, rectangle, outline, width, edge, none. The XData, YData, and ZData properties on a Patch object created by the fill or fill3 functions return the coordinates using the original input data type, rather than returning them as double values. below the blue and red curves). Not all types of charts support modifying the colorbar location. Copy. h1=fill3 (X,Y,Z,C) 4x1 Patch array: Patch. example. So far, i have created a plane with fill3, resulting a parallelipiped shape (matchbox) (for the record, a 2d place could work also, using fill3 with 4 points). 6); fill3(x(:),y(:),z(:), 'r') box on grid on Using plot3 also was not very good. example. Choose a web site to get translated content where available and see local events and offers. fill3(___,Name,Value) 通过使用一个或多个名称-值参数设置属性来修改 Patch 对象。可以使用上述语法中的任何输入参数组合来指定补片。例如，fill3(X,Y,Z,C,'LineWidth',2) 指定一个围绕所有补片的两点边框。有关属性列表，请参阅Patch 属性。 Description. This is done by plot3. If you are you used to 255 color values from HTML for example, you can divide by 255 to get a value between 0 and 1. I am not sure if how I said this makes much sense. . If the polygon is not already closed, then poly2mask closes the polygon automatically. xc=1; yc=1; zc=1; % coordinated of the center L=10; % cube size (length of an ed. bar, bar3, colordef, colormap, fill, fill3, whitebg. X, Y, and Z triplets specify a polygon vertices. X, Y, and Z triplets specify the polygon vertices. fill ( ___,Name,Value) modifies the patches using one or more name-value arguments to set properties. Fill BetweenOne question I'm often asked is how to fill the area between two plotted curves. 2. When the SeriesIndex value is a number, MATLAB uses the number to calculate an index for automatically assigning colors when you call plotting functions. How to fill a 3D plot?. Accepted Answer: Adam Danz. Skip to content. Here's a small example for an arbitrary line. It is similar to the Windows 8 emulator but is limited to the Windows 7. If X, Y, or Z is a matrix, fill3 develop n polygons, where n is a number of columns in the matrix. This is done by plot3. 1. fill3 close the polygons by linking the last vertex to the first when necessary. By default, the lighting method is flat, which applies light uniformly across the faces of the sphere that are facing the light source. When creating each cuboid, multicuboid uses the following coordinate system. surf (Z) creates a surface plot and uses the column and row indices of the elements in Z as the x - and y -coordinates. fill3 (X,Y,Z,C) plots filled polygonal regions on 3-D axes as Patch objects with vertices at the ( x, y, z) locations specified by X, Y, and Z. 2 using a new version of Microsoft Windows. . It is my understanding that you want to generate a similar shape by using “surf” plot as “fill3” plot does but i t is p ossible that the surface plotted by the surf function appears different from the surface plotted by fill3 because they use different algorithms to generate the surface. This section concentrates on use of the patch function. sphere ( ___) plots the sphere without returning the. Plots a 3D line with color encoding along the length using the patch function. l is the length of the box in the x-direction, % w is the width of the box in the y-direction, and h is the height of the. You can also use fill3: fill3(A,B,C) Also you can use patch: patch(A,B,C,[0,6]) %fourth argument gives a gradient of colors, alternatively you can use 'red' or 'blue' Or as mentioned in the comments, you can use the following: SearchYou are not providing surface data to fill3, just points, so there is no clearly defined triangulation, and it is trying to fill between consecutive vertices (which may be in no particular order). fill3(X,Y,Z,C) fill3(X,Y,Z,ColorSpec) fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. Specify an n -by-1 or 1-by- n vector of colormap indices, where n is the number of polygonal regions. Plot 3D Color Line. fill3 closes the polygons by connecting the last vertex to the first when. Specify an n -by-1 or 1-by- n vector of colormap indices, where n is the number of polygonal regions. e. h = viscircles ( ___) devuelve un identificador, h,. clear all. The vertices of the polygon are specified by triples of components of X, Y, and Z. You have the data for the lower and upper values of z in the cylinder. 5 25. 1 rectángulo ('Posición', [x, y, w, h]), donde x e y son las coordenadas iniciales, dibuje un rectángulo con longitud w y ancho h . fill3(X,Y,Z,C) fills three-dimensional polygons. p = patch; c = p. I2 = imfill (I) fills holes in the grayscale image I. A number of MATLAB ® functions create patch objects — fill, fill3, isosurface, isocaps, some of the contour functions, and patch. z=rand (1,24); s=rand (1,24); t=rand (1,24); Here is another very helpful MATLAB doc on how to manually setting the colormap for a patch object (surf and trisurf are both using patch to draw things): Coloring Mesh and Surface Plots Here is what the numerical solution using quadratic elements is like for $-\Delta u = 1$ with homogeneous Dirichlet boundary data on an L-shape domain. all you have to do is to collect the handle, for instance. X, Y, and Z triplets specify the polygon vertices. Thus, I have written something like: axes01 = fill3 (X1, Y1, Z1, C1) When I need to re-position this object, I wrote: set (axes01, 'XData', X2) set (axes01, 'YData', Y2) set. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. triplot (T,x,y,LineSpec) also specifies the line style of the triangulation. How can I also specify the border line color? Description. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. This section concentrates on use of the patch function. Reissuing the zlabel command causes the new label to replace the old label. Well, I did mention how to do that, but only briefly. What is the way to do this on MATLAB? I attempted to use fill3 and a mesh but the result was not very good [x,y,z] = meshgrid(0:0. But now I need to adapt it to accept multiple other shapes (hexagon, pentagon, etc. fig1. 01:2,0:0. function creates colored polygons. surf (Z,C) additionally specifies the surface color. However, the border line color is always black. fill3 (X,Y,Z,C) plots filled polygonal regions on 3-D axes as Patch objects with vertices at the ( x, y, z) locations specified by X, Y, and Z. The shading function controls the color shading of surface and patch graphics objects. you can normalize by the global maximum value of the triangles in the fill3 line. Create matrices x and y. fill3 returns a column vector of handles to patch objects, one handle per patch. a = fill (x,y,'b'); a. If X, Y, or Z is a matrix, fill3 creates n polygons, where n is the number of columns in the matrix. In Matlab, graphical objects like lines, surfaces, and patches can be grouped to share a common parent defining a set of spatial transformations (translation, scaling, and rotation) that apply to. Specify an n -by-1 or 1-by- n vector of colormap indices, where n is the number of polygonal regions. Description. triplot (TO) plots the triangles defined by a 2-D triangulation or delaunayTriangulation object. If X, Y, or Z is a matrix, fill3 creates n polygons, where n is the number of columns in the matrix. patch(X,Y,Z,C) creates a patch in three-dimensional coordinates. 1. This MATLAB function plots filled polygonal regions on 3-D axes as Patch objects with vertices at the (x,y,z) locations specified by X, Y, and Z. So you can't express things like the x=0 plane. png'; % read in the source image (this gives an m * n * 3 array) RGB_in = imread ( im_src ); [m, n] = size ( RGB_in (:,:,1) ); % locate the pixels whose. 3. can't add axis labels. Return the two “Line” objects as an output argument from the “plot” function and then set the “LineWidth” property for each. a = rand (200); % Create a logical image that defines a rectangular boundary. Is there an equivalent to Matlab’s fill3 in Plots. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. As shown above, the base of my 3D benchy. all you have to do is to collect the handle, for instance. fill3(X,Y,Z,colorSpec) fills a polygon in 3D with a specific color. 7 . I'm writing code in which I use MATLAB's fill command to plot 2D shapes. I am using matlab to plot three data series. parfor loopvar = initval:endval; statements; end executes a series of MATLAB ® statements for values of loopvar between initval and endval , inclusive, which specify a vector of increasing integer values. Classic HTML gray is [128, 128, 128]. fimplicit3 (@ (x,y,z) abs (x)+abs (y)+abs (z)-1) You may also be interested in fplot, fplot3, fsurf, fmesh, fcontour, and fimplicit (some of these have been available since R2016a, but fimplicit3 was added in R2016b). When i press the button, through a button callback, i draw a 3d circle through this function, passing the handles. Visualizations of fully 3D data sets] 3D specialized plots [MATLAB: ribbon, quiver, quiver3, fill3, stem3, sphere, cylinder. Syntax. . If you get stuck, let me know where I can help. Then display grid lines in the bottom plot by passing ax2 to the grid function. The function GRIDDATA can be used to interpolate and plot data in 3-D as follows: ZI = griddata (x,y,z,XI,YI) fits a surface of the form z = f (x,y) to the data in the (usually) nonuniformly spaced vectors (x,y,z). MATLAB Graphics 2-D and 3-D Plots Surfaces, Volumes, and Polygons Surface and Mesh Plots Find more on Surface and Mesh Plots in Help Center and File Exchange Tags fill (X1,Y1,C1,. 01:2); ineq = (x>=1)& (y>0. Let us now use the plotting capabilities of MATLAB to plot the plane and the line. 영역 하나를 플로팅하려면 X, Y, Z 를 벡터로 지정하십시오. You also can create geometries where some cells are empty; for example, hollow cylinders, cubes, or spheres. matlab function 3d plot geometry Share Improve this question Follow Filled 3-D polygons in 3-space. Theme. (1,4:6) and AA(2,1:3). Hi, I have data matrix with NaN, and I want to fill the polygon colored. Geographic Plots. To create one patch, specify X and Y as vectors. The sixth vector is the left edge. fill3(X,Y,Z,C) fills three-dimensional. Copy. 3232 0. 2. Copy. Learn more about fill3 MATLABSyntax. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. The function can plot one or more regions, customize the fill colors, and modify the patches after creation. . Fill (X, Y, ColorSpec) // It is used to fill 2D polygons identified by X and Y with the color specified. I have a matrix with all the XYZ values as a 3D volume but I need to ju. C determines the color of the patch. To create multiple polygons, specify X and Y as matrices where each column corresponds to a different polygon. @AnderBiguri I have a kind of RGB image (a 3D matrix in my case) so, I want to select and fill a specific zone of the image (a rectangle) with specific values (ex: [0. The cylinder fuction ( [X,Y,Z] = cylinder) generates coordinates of surface vertices and after using surf, matlab draws a cylinder surface. 0. How to draw the lines or edges of a cone in matlab. To get a visual idea where the data lies, I plotted the individual series as patches (limited by min and max) on top of each other with a semitransparent color. The mesh plot uses Z for height and C for color. 5 . By changing property values, you can modify certain aspects of the patch. Tracing the points shows that they have x, y, and z coordinates. Learn more about fill, fill3 . The fliplr command is used to make sure the surface vertices are in the correct order. I would just like to ask something additional. You define a patch by specifying the coordinates of its vertices and some form of color data. By default, new plots clear existing plots and reset axes properties, such as the title. Also, note that, "plot3" and "fill3" are high-level graphics functions. mathworks. Something similar to the solution previously discussed in:. Then use Java’s setWindowOpacity method to set the window’s transparency value. fill3 (X1, Y1, Z1, 'red') I wanna make a box with fill3 but when i typed in the 2nd fill3 code (the red one), it does not produce a surface. Learn more about fill3, interpolation, rectangular element57. You can then manipulate the patch object to set further properties like transparency. [X,Y,Z] = sphere (n) returns the x -, y -, and z - coordinates of a sphere with a radius equal to 1 and n -by- n faces. XData (1:end-1); %leave out the nan. 3. 1)&(x+y+z>1. rotate (h,direction,alpha) rotates the graphics object h by alpha degrees. The color of the surface varies according to the heights specified by Z. 7676 10 0.