It can be a single ColorSpec, one color per face, or one color per vertex (see "Remarks"). FaceAlpha = 0. fill3(___,Name,Value) modifies the Patch objects using one or more name-value arguments to set properties. a = rand (200); % Create a logical image that defines a rectangular boundary. Copy. Building off of @gnovice's answer, you can actually create filled plots with shading only in the area between the two curves. Change Colormap. Specify a transparency value between 0 (fully transparent) and 1 (fully opaque). See the help for EZMESH. Learn more about 3d plots, 3d, plotting MATLAB I created this program to draw a rectangle and fill the sides with color. Call the tiledlayout function to create a 2-by-1 tiled chart layout. I have a gray ([. g. write data to a new image with transparent background): % name the input and output files im_src = 'im0. Is there a way to e. )To create colors manually and assign them to the marker values, start with the RGB values of last desired color in the shade, say light pink for this example (i. The second vector is the bottom right. Since R2023b. . [TR,fileformat,attributes,solidID] = stlread (filename) also returns the file. C determines the patch colors. fill(X,Y,C) Cis a vector or matrix used as an index into the colormap. Learn more about plot, rectangle, outline, width, edge, none. When attempting to change parameters like transparency and face colour, it can get confusing, so let's simplify. Use this argument to control the color mapping of the isosurface with data different from that used to calculate the isosurface. Further, if the solution is specified as follows: A: B: Then the sum of your two variables is: 2 Therefore the sum of 2 values in A equals 3 (in general). The area is between a parabola, a line, and the positive x axis. Copy. To view the polygons in a 3-D view, use the view (3) command. C is a vector or matrix used as an index into the colormap. 2) If the x,y point is inside the bottom perimeter of the region as (X,Y, Z=Z0), then test for min (Z) <= z <= max (Z), where Z. . Tags fill; Community Treasure Hunt. x = linspace (0,10); y1 = sin (x); y2 = sin (3*x); tiledlayout (2,1) % Top plot ax1 = nexttile; plot. You can check this by getting the Renderer of the current figure before and after plot setting the FaceAlpha. 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). h = fill (. [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. 2-D Graphics Functions (pp 105-154) 3-D Graphics Function (pp 159-163) Contact Your Sales Rep. Hi, I am trying to plot a 3d cone. Description. 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. Find more on Axes Appearance in Help Center and File Exchange. If you get stuck, let me know where I can help. Usa la función rectángulo para dibujar un círculo. [TR,fileformat,attributes,solidID] = stlread (filename) also returns the file format of filename, attributes when the file is binary, and solid identification numbers when the file is text. 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. 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. 3. The plot3 calls draw circles around the tops of them to make the edge more visible. direction is a two- or three-element vector that describes the axis of rotation in conjunction with the origin of the axis of rotation. a = fill (x,y,'b'); a. . X, Y, and Z triplets specify the polygon vertices. shading flat each mesh line segment and face has a constant color determined by the color value at the endpoint of the segment or the corner of the face that has the smallest index or indices. If C is a row vector, length (C). fill3(___,Name,Value) modifies the Patch objects using one or more name-value arguments to set properties. i am not getting any figure at all. The X, Y, Z, C parameters can be followed by parameter/value pairs to specify additional properties of the patches. ylabel (target,txt) adds the label to the specified target object. Sign in to comment. 7. [255, 192, 203]) and then scale the values down to [0,1]. If you want different numbers of sides in all axes (for example a pyramid. . This section concentrates on use of the patch function. This argument overlays another data set by coloring the resulting isosurface. Transparency for All Objects in Axes. For example, fill3(X,Y,Z,C,'LineWidth',2) specifies a two-point border around all the patches. fill3(X,Y,Z,colorSpec) fills a polygon in 3D with a specific color. The test assumes that the sample data comes from a population with a normal distribution and a. but unfortounately just hollow culinders are generated. The fill3 function creates flat-shaded and Gouraud-shaded polygons. However, when I plot the white polygon with FaceALpha=1 above transparent elements, I can still see those elements below the polygon. Show 3 older comments. mat) is plotted on its own using fill3 it does not glitch (second picture). ,'PropertyName',PropertyValue) h = fill3(. Example: x=0:0. bar, bar3, colordef, colormap, fill, fill3, whitebg. Position of markers, specified as an M-by-2 matrix, where each row is an image coordinate pair of the form [x y], or an M-element vector of one of the points objects listed on the Point Feature Types page. can't add axis labels. Denote these values as gmax, gmin, then we can normalize the entire data set according to these values. Theme. h1=fill3 (X,Y,Z,C) 4x1 Patch array: Patch. In this syntax, a hole is defined as an area of dark pixels surrounded by lighter pixels. Series index, specified as a positive whole number or "none". fill3(X,Y,Z,colorSpec) fills a polygon in 3D with a specific color. 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. If X, Y, or Z is a matrix, fill3 develop n polygons, where n is a number of columns in the matrix. fill3(X,Y,Z,C) fill3(X,Y,Z,ColorSpec) fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. polarplot accepts one or more pairs of theta and rho inputs. 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. However, i want for example the second and third area to be the same color because they are the same behavior and the first and last be something different. The fliplr command is used to make sure the surface vertices are in the correct order. fill ( ___,Name,Value) modifies the patches using one or more name-value arguments to set properties. 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). 7676 10 0. Visualize the wind patterns by plotting the data in polar coordinates using the polarscatter function. I created the following 3d plot in MATLAB using the function plot3: Now, I want to get a hatched area below the "2d sub-graphs" (i. Description example alpha value sets the face transparency for objects in the current axes that support transparency. To plot one region, specify X, Y, and Z as vectors. If X, Y, or Z is a matrix, fill3 creates n polygons, where n is the number of columns in the matrix. fill3 (X, Y, Z, C) Rellena el polígono tridimensional. 01:2,0:0. 영역을 여러 개 플로팅하려면 X, Y, Z 를 각 열이 하나의 다각형에. 32,0] The resulting plot is as shown: How can I create a surf. I can specify the fill color of the shape. 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. 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. Fill3 Matlab /C Note: Using Matlab / C++ is not supported by the Visual Studio compiler. fill (X,Y,C) creates filled polygons from the data in X and Y with vertex color specified by C. 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). Graphics Functions. How can I also specify the border line color? Description. 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. e. I want to plot a cube of side length 10, that would be symmetrical from -5 to 5 and not -6 to 4. To plot one region, specify X, Y, and Z as vectors. Learn more about fill, 3d plots, area, fill3 The fill function creates colored polygons. 98,0. I am using matlab to plot three data series. You can specify any of the patch properties to change your patch objects. close all; % Close all figures (except those of imtool. 3D Polygon - draw planes with Matlab In this example we’re going to explain how to draw a 3D polygon using Matlab. How to plot a filled rectangle without edge?. Hello, Thanks, it works. CDataMapping = 'scaled'; 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 Call the tiledlayout function to create a 2-by-1 tiled chart layout. Plot 3D Color Line. Description. This MATLAB function fills three-dimensional polygons. Also, note that, "plot3" and "fill3" are high-level graphics functions. Change the value of ‘N’ to get different numbers of sides (I experimented with a pentagon and hexagon successfully). 5; % for 50% transparent. This code plots the plane spanned by any v1 and v2. fill3 closes the polygons by connecting the last vertex to the first when. The first vector is the top left corner. zlabel (ax, ___) adds the label to the axes specified by ax. Connect and share knowledge within a single location that is structured and easy to search. fill3 sets the patch object FaceColor property to flat, interp, or a ColorSpec depending upon the value of the C matrix. determines the color of the patch. . xc=1; yc=1; zc=1; % coordinated of the center L=10; % cube size (length of an ed. png'); Define marker size and adjust the x and y data: markersize = [1,1]; %//The size of marker is expressed in axis units, NOT in pixels x_low = x. Select a Web Site. Specify an n -by-1 or 1-by- n vector of colormap indices, where n is the number of polygonal regions. 01:2,0:0. Find the treasures in MATLAB Central and discover how the community can help you!In your slider callback for the slider, instead of calling the "fill3" function with all the original and new data, simply access the Patch object for the black line and edit its "ZData" property according to the new value given by the slider: blackLine = handles. [columnsInImage rowsInImage] = meshgrid (1:imageSizeX, 1:imageSizeY); % Next create the circle in the image. Then, specify flat or interpolated transparency by setting the FaceAlpha and EdgeAlpha properties to either 'flat' or 'interp'. MATLAB 2D plot parabolic line rotation to form a cone in 3D. example. Copy. I'm trying to plot a signal, for example cos(x), with a red gradient colormap for positive values and a blue one for negative values. fill3(x,y,z,blue, 'FaceAlpha',0. However, I need to update the position of this object over time. ^2. Learn more about fill3, 3d, fillFrom the matlab documentation. 2. 0. Returning NaN does not prove that V is not a gradient field. How do i do that ?imagesc can put the png on you plot. Description. If you are using MATLAB R2016b you can use the new fimplicit3 command: Theme. fill3(X,Y,Z,colorSpec) fills a polygon in 3D with a specific color. ,Xn,Yn,Cn) plots multiple two-dimensional filled polygonal regions on the same axes. Here's a small example for an arbitrary line. The fliplr command is used to make sure the surface vertices are in the correct order. Learn more about patch, fill3, line, plot3, facealpha MATLAB. fill3(X,Y,Z,C) fill3(X,Y,Z,ColorSpec) fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. . . You have to change the x-values in your plot, or you can change the axis labels. Copy. To plot one region, specify X, Y, and Z as vectors. Since you are working on R2019a, you should refer to the documentation specific for that release:Learn more about fill3, color MATLAB I would like to obtain different colors for the surfaces created using FILL3 function without scaling the indices specified as the argument. Specify the plot appearance. Copy. Accepted Answer. Theme. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. The fill3 function creates flat-shaded and Gouraud-shaded polygons. . The emulator can be used to run Windows 8 or Windows 8. So you can create a polygonal region in x and y, with a fixed z. The fill3 function creates flat-shaded and Gouraud-shaded polygons. For the latter you need the fliplr(A) command. Set the colors for the filled contour plot by changing the colormap. X, Y, and Z triplets specify the polygon vertices. polar accepts the LineSpec input argument to set the line style, marker symbol, and color of the plotted line. 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. The sixth vector is the left edge. Set the edge color to the same color value as the "FaceColor'. It can be a single ColorSpec, one color per face, or one color per vertex (see "Remarks"). If X, Y, or Z is a matrix, fill3 creates n polygons, where n is the number of columns in the matrix. Saltar al contenido. 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. h = viscircles ( ___) devuelve un identificador, h,. . fill3(X,Y,Z,C) fill3(X,Y,Z,ColorSpec) fill3(X1,Y1,Z1,C1,X2,Y2,Z2,C2,. Create the rectangle with curved corners by specifying the curvature as the scalar value 0. This emulator is open-source software and is being developed by Microsoft. But when I do the same in MATLAB. 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. This section concentrates on use of the patch function. Learn more about fill, 3d plots, area, fill3 Hi all, I am currently doing a 3D figure with 3 differents 2D-plots (representing 3 conditions) 1) How can I fill the area under the ploted curves ?Description. Plotting 3D cone using gnuplot of user data file. The function returns the x -, y -, and z - coordinates as three (n+1) -by- (n+1) matrices. ) Description. The third vector is the middle top corner. The fill function creates colored polygons. polar accepts only one pair of theta and rho inputs. So far I have been able to generate a rectangular surface using fill3 command the following string of c. An alternative is to use a function specifically for scattered points, which in matlab is the trisurf function. It seemed Matlab cannot close the polygon automatically, thus wouldn't color it. 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 Tagsfill (X1,Y1,C1,. If Y is a scalar, then potential expands it into a vector of the same length as X with all. All cells in a geometry must be of. figure. P0 is an array of 3 scalar numbers for. fill (xd, yd, 'r'); Besides it being easier to get the coordinates correct, there is another reason. 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. fill3 (X,Y,Z,C) 는 3차원 좌표축에 채워진 다각형 영역을 X, Y, Z 로 지정된 (x,y,z) 위치에 꼭짓점이 있는 Patch 객체로 플로팅합니다. The polyhedron has the previously stated polygon traits, but it additionally does not have isolated faces or dangling faces. x1 = linspace (0,pi/2,10); y1 = linspace (0,pi/2,10); z1 = sin (linspace (0,pi/2,10));The shading function controls the color shading of surface and patch graphics objects. fill ( ___,Name,Value) modifies the patches using one or more name-value arguments to set properties. Choose a web site to get translated content where available and see local events and offers. Patch properties control the appearance and behavior of Patch objects. x = linspace(0,8,50); y1 = besselj(2,x); y2 = besselj(3,x); plot(x,y1). However, the graph is 2-dimensional, with the points color-coded by z-coordinate. This is done by plot3. To create multiple polygons, specify X and Y as matrices where each column corresponds to a different polygon. Then just call patch or fill3 with the coordinates of those points, and whatever color you wish to fill it in with. Accepted Answer: Adam Danz. 0. Specify value as 'clear' or 'opaque', or as a number in the range [0, 1]. 86] z = [0,-2. example. Learn more about 3d plots MATLAB. with the following properties: * EDGES : 3-elements vector that defines the length of cube edges. . z=rand (1,24); s=rand (1,24); t=rand (1,24);The fill3 function is one way to make a patch object, and it provides a syntax with which you can directly specify the color. ) fill3(. We can avail ourselves of this in the following way: Define user data: x = 1:10; y = 5*rand (size (x)) + 2. Find more on Surface and Mesh Plots in Help Center and File Exchange. To plot one region, specify X, Y, and Z as vectors. Theme. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. But now I need to adapt it to accept multiple other shapes (hexagon, pentagon, etc. But when plotted in MATLAB, they both have the same bounds of [-1,1]*10^-3. The two surf calls (one for each cylinder) draws the cylinders. You have scattered 3d points, surf is made for rectangular grid data. axis equal. X, Y, and Z triplets specify a polygon vertices. Is there a way to make this surface transparent? I tried the 'FaceAlpha','0. Syntax. As others have pointed out, gray is the result of the Red, Green, and Blue are equal somewhere between 0 and 1 where black is [0 0 0] and white is [1 1 1]. When the graph is plotted, it makes a 2D chart. This function is an improvement over the CLINE function previously made available on TMW File Exchange. . , Xn, Yn, Cn) // It is used for multiple 2D filled areas in. 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. For example, fill3(X,Y,Z,C,'LineWidth',2) specifies a two-point border around all the patches. fill3 Si es necesario, conecta el último vértice al primer vértice para cerrar estos polígonos. collect all these values, find the global max and min values. . 5; Load the marker image: marker = imread ('icon. Commented: ml Lin on 25 Jun 2015. To plot one region, specify X, Y, and Z as vectors. 1 rectángulo ('Posición', [x, y, w, h]), donde x e y son las coordenadas iniciales, dibuje un rectángulo con longitud w y ancho h . To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. If X, Y, or Z is a matrix, fill3 creates n polygons, where n is the number of columns in the matrix. The problem is that i do not know ho to rotate it. i have a separate line along which i have to plot the cone). 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). To view the polygons in a 3-D view, use the view (3) command. I want to plot a cube of side length 10, that would be symmetrical from -5 to 5 and not -6 to 4. . x= (-10:0. Use dot notation to query and set properties. This page also shows you how to do it with patch (). 0. I have a 3D mesh that I'd like to plot with fill3() and colorize on a per-patch basis. How to draw the lines or edges of a cone in matlab. 3D volume plots [MATLAB: slice, isosurface, smooth3, isocaps, isonormals. it is already filled, let me explain: when you generate a surface with commands like fill3 patch surf surface. Facealpha bug in combination with 3D plots. Choose a web site to get translated content where available and see local events and offers. To set properties of all faces use patch. 7]) shape in a figure, which I generate using "fill. To change color and transparency all you have to write in example: Theme. Description The fillfunction creates colored polygons. To change color and transparency all you have to write in example:Comes from the documentation of fill3, which states that the fill3 command creates a patch object. Hi everybody, actually I've done a Matlab GUI with an object axes and a button. X, Y, and Z triplets specify the polygon vertices. Patches — Specify a different transparency value for each face and edge. 1 Answer. 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. 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. Here's a small example for an arbitrary line. This function plots the given datasets in a single figure and axis, and resembling the cover of Joy Divisions' Unknown Pleasures by Peter Saville (and in many other newspapers, journals, etc. To draw the sphere using the returned coordinates, use the surf or mesh functions. x = [2 0; 2 0; 4 4]; y = [0 2; 1 4; 0 2]; fill (x,y, 'r') One color per region. joyPlot - Ridgeline data representation. Description. Therefore in the right column of the above figure, A is the second variable, and B is the third variable. 1. The fill3 function creates flat-shaded and Gouraud-shaded polygons. The shading function controls the color shading of surface and patch graphics objects. clear all. Matlab ------ Cómo dibujar un círculo en Matlab. 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. wich cordinates can i useanimation facevertexcdata fill3 MATLAB. For example, 'Direction','reverse' reverses the color scale. By changing property values, you can modify certain aspects of the patch. Learn more about matrix, vector, for, loop, phase, angle, value, matlab, codeDescription. TR = stlread (filename) returns a triangulation object TR containing the triangles defined in an STL file. For example, 'LineWidth',2 sets the edge width to 2 points. How can i use fill3 to make a box. For performance reasons, potential sometimes does not sufficiently simplify partial derivatives, and therefore, it cannot verify that the field is gradient. I still think a one liner is nicer than several. patch (X,Y,Z,C) creates the polygons in 3-D coordinates using X, Y, and Z. If C is a 1-by-3 vector, it is assumed to be an RGB triplet, specifying a color directly. Jorrit on 14 Aug 2011. In a plot that uses no transpareny, I can easily plot a white polygon with the "fill"-command which results in a sharp boundary. zlabel (txt,Name,Value) additionally specifies the text object properties using one or more Name,Value pair arguments. This MATLAB function fills three-dimensional polygons. Skip to content. "If X, Y, and Z are matrices of the same size, fill3 forms a vertex from the corresponding elements of X, Y, and Z (all from the same matrix location), and creates one polygon from the data in each column. So i want to find a way to fill that circle with some color. fill3(X,Y,Z,C) fills three-dimensional. Syntax. fill3(X,Y,Z,C) fills three-dimensional polygons. com Create filled 3-D patches - MATLAB fill3. When creating each cuboid, multicuboid uses the following coordinate system. example. fill (xd, yd, 'r'); Besides it being easier to get the coordinates correct, there is another reason. shp = alphaShape (x,y,z) creates a 3-D alpha shape of the points (x,y,z) using the default alpha radius. In previous releases, datetime , duration , and categorical coordinates are converted to double values when they are stored in the XData , YData. XData (1:end-1); %leave out the nan. To plot multiple regions, specify X, Y, and Z as matrices where each column corresponds to a polygon. shp represents a polyhedron. e. PLOTCUBE (EDGES,ORIGIN,ALPHA,COLOR) displays a 3D-cube in the current axes. fill3(X,Y,Z,C) fills three-dimensional polygons. This table classifies and illustrates the common graphics functions. g. More specifically, we are going to draw several flat surfaces (planes) to build or model a box. Geographic Plots. Could you please tell how to extract mesh data from the handle h1=fill3(X,Y,Z,C) and export it in the text file ? I need the coordinates of the points on the surface created by fill3 command. Learn more about surf MATLAB Hi, I have a fill3 plot created using the following data below: x = [0,18. ,'PropertyName',PropertyValue) h = fill3(. You define a patch by specifying the coordinates of its vertices and some form of color data. To change color and transparency all you have to write in example:With these functions, you can create stacked or nested geometries. The short names and long names are MATLAB strings that specify one of eight predefined colors. When this data (attached at XYZ. Plot Dem Matlab from Microsoft Windows 8 is a Windows 8 emulator that can be used for Windows 8. Then reset the hold state to off. Apparently, putting 'figure(1)' inside the loop makes a huge difference. 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 fill3 function creates flat-shaded and Gouraud-shaded polygons. Create a set of 3-D points and compute the Delaunay triangulation using the delaunay function. Learn more about 3d plots, 3d, plotting MATLAB I created this program to draw a rectangle and fill the sides with color. C specifies color, where C is the vector or matrix. If C is a 1-by-3 vector, it is assumed to be an RGB. Find more on Lighting, Transparency, and Shading in Help Center and File Exchange. 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). The fill3 function creates flat-shaded and Gouraud-shaded polygons. It is possible to do this, but it involves some details which aren't obvious, so let's walk through what's involved. 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. Then display grid lines in the bottom plot by passing ax2 to the grid function. example. ) fill3(. Specify h as a surface, patch, line, text, or image object. xlabel ('Bootstrap Replicates') % x-axis label.