![]() update_xaxes ( range =, zeroline = False, ) fig. Scatter ( x =, y =, text =, mode = "text", )) # Update axes properties fig. Figure () # Create scatter trace of text labels fig. add_vrect ( x0 = "", x1 = "", fillcolor = "LightSalmon", opacity = 0.5, layer = "below", line_width = 0, ) fig. add_vrect ( x0 = "", x1 = "", fillcolor = "LightSalmon", opacity = 0.5, layer = "below", line_width = 0, ), fig. Scatter ( x =, y =, mode = "lines", name = "temperature" )) # Add shape regions fig. Figure () # Add scatter trace for line fig. Traces also support optional text, although there is a textual equivalent to shapes in text annotations.Traces cannot be positioned absolutely but can be positioned relative to date coordinates in any subplot type.Shapes can be positioned absolutely or relative to data coordinates in 2d cartesian subplots only.Traces can optionally support hover labels and can appear in legends.The differences between these two approaches are that: Note: there are special methods add_hline, add_vline, add_hrect and add_vrect for the common cases of wanting to draw horizontal or vertical lines or rectangles that are fixed to data coordinates in one axis and absolutely positioned in another. Standalone lines, ellipses and rectangles can be added to figures using fig.add_shape(), and they can be positioned absolutely within the figure, or they can be positioned relative to the axes of 2d cartesian subplots i.e.scatter, scatter3d, scattergeo etc) can be drawn with mode="lines" and optionally support a fill="self" attribute, and so can be used to draw open or closed shapes on figures. Trace types in the scatter family (e.g.alpha(0.As a general rule, there are two ways to add shapes (lines or polygons) to figures: You can adjust the transparency with the alpha function. We can select a pre-set lighting algorithm which is good for curved surfaces. % Put a point to indicate where the light source is (for reference) Alternatively, you can also use camlight. You can place a light source at a particular location. You can control the shading of surface objects using the shading function. You can change colormaps either interactively: The default colormap for a figure is JET. It is represented by an M-by-3 matrix, where each row represents a color (in RGB). To see what the current colormap is for the current figure, use the command colormap: colormap It exists in all MATLAB graphics, but you see the effect of it mostly in 3D surfaces and images. ColormapsĬolormaps are MATLAB's way of mapping levels/intensities/values to colors. In fact, there are a number of cam* commands for manipulating the view camera. camorbit(180, 0) % 180 degrees about Z-axis view(50, 40) % azimuth and elevationĪnother way of changing the view is to use commands like camorbit. You can do it interactively from the figure window:īut you can also do it programmatically using the view command. In a 3D plot, you can change the orientation of the view. Let's first focus on the three different types of 3D plots:įor the rest of the tutorial, we'll take a look at each of these topics in detail. MATLAB's 3D plotting capability is just as versatile as the 2D plots. Legend( 'Signal', 'Location', 'Northwest') ![]() 'MarkerSize', 10) Īdding titles, labels, legends is as simple as using the commands title, xlabel, ylabel, legend. In the next section, we'll talk more about these properties. In fact, you have much more control by providing specific "properties" to the command. Just highlight a variable that you want to plot and click on the drop down menu to bring up the Plot Selector.Īs with many other MATLAB functions, plot takes additional arguments allowing you to customize the plot. You can also access these functions directly from the Workspace Browser. Use PLOT for single color, single marker size scatter plots. H = SCATTER(.) returns handles to the scatter objects created. SCATTER(AX.) plots into AX instead of GCA. SCATTER(.,M) uses the marker M instead of 'o'. SCATTER(X,Y,S) draws the markers at the specified sizes (S) SCATTER(X,Y) draws the markers in the default size and color. Length(X)-by-3 matrix, it directly specifies the colors of the Same length as X and Y, the values in C are linearly mapped If S is empty, theĬ determines the colors of the markers. MATLAB draws all the markers the same size. Vector the same length a X and Y or a scalar. S determines the area of each marker (in points^2). SCATTER(X,Y,S,C) displays colored circles at the locations specifiedīy the vectors X and Y (which must be the same size). To learn how to use these functions, use help or doc help scatter % doc scatter SCATTER Scatter/bubble plot. Here's a good summary of these plotting routines. MATLAB provides a variety of plotting routines, both in 2D and 3D.
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