scatter3 -- plotting points with different colors attributes (2024)

FAQs

What is scatter3 colors in Matlab? ›

scatter3( X , Y , Z , S , C ) specifies the circle colors. You can specify one color for all the circles, or you can vary the color. For example, you can plot all red circles by specifying C as "red" . scatter3(___, 'filled' ) fills in the circles, using any of the input argument combinations in the previous syntaxes.

RGB Triplet — Create a custom color by specifying a three-element row vector whose elements are the intensities of the red, green, and blue components of a color. The intensities must be in the range [0,1] . For example, you can specify a shade of pink as [1 0.5 0.8] .

Draw a 3-D scatter plot. A marker is plotted at each point defined by the coordinates in the vectors x , y , and z . The size of the markers is determined by s , which can be a scalar or a vector of the same length as x , y , and z . If s is not given, or is an empty matrix, then a default value of 8 points is used.

You can use the linespec argument to specify a named color, but to specify a custom color, set an object property. For example, Line objects have a Color property. Create a plot with a purple line that has circular markers. Specify only the line and marker symbols in the linespec argument.

Possible color values are 'black', 'white', 'red', 'green', 'blue', 'cyan', 'magenta', 'yellow', 'gray', 'lightBlue', 'orange', 'darkGreen'.

To determine the bit depth of your system's screen, enter this command at the MATLAB prompt. 8-bit displays support 256 colors. An 8-bit display can produce any of the colors available on a 24-bit display, but only 256 distinct colors can appear at one time.

All of the line properties can be controlled by keyword arguments. For example, you can set the color, marker, linestyle, and markercolor with: plot(x, y, color='green', linestyle='dashed', marker='o', markerfacecolor='blue', markersize=12).

Specify Colormap Colors for 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. When you use a colormap, C is the same size as Z .

To display a truecolor image, call the imshow function or open the Image Viewer app. For example, this code reads a truecolor image into the MATLAB workspace and then displays the image. This sample code uses the variable name RGB to represent a truecolor image in the workspace.

One way to adjust the marker size in a scatter plot is by using the 's' parameter in the plt. scatter() function. The 's' parameter allows you to specify the size of the markers in points. In this example, we have defined three lists: 'x', 'y', and 'marker_size'.

What is the marker size in scatter3d? ›

scatter3d(x,y,z) creates a scatter plot with markers at the locations specified by x , y , and z . The default type of the marker is a circle, the default color is "blue" and the default marker size is 36. This means the circle surrounding the marker has an area of 36 points squared.

Dot markers are available in three sizes:

Small: 5-8mm. Standard: 10-13mm. Extra Large: 18-23mm.

Color from Light to Dark:

START LIGHT! You can always add more color and go darker, but you can't go to the opposite way. Color in the lightest shades first, then build up darker colors. Try to plan out highlights in advance and know which areas you're going to keep white (you can't erase marker!)

COLOR CHANGING MARKERS: The color changing markers use a fun blending technology where layering one color on top of another creates an entirely new third color, allowing kids to explore new hues and color combinations.

A scatter plot is a simple plot of one variable against another. The MATLAB® functions plot and scatter produce scatter plots. The MATLAB function plotmatrix can produce a matrix of such plots showing the relationship between several pairs of variables.

3D scatter plots are used to plot data points on three axes in the attempt to show the relationship between three variables. Each row in the data table is represented by a marker whose position depends on its values in the columns set on the X, Y, and Z axes.

___ = colorize(___, Name,Value ) specifies options using one or more name-value pair arguments in addition to any combination of arguments from previous syntaxes. Use this syntax to specify the options to estimate false-colored and color-infrared (CIR) images of the input data.

An indexed image consists of an image matrix and a colormap. A colormap is a c-by-3 matrix of data type double with values in the range [0, 1]. Each row of the colormap specifies the red, green, and blue components of a single color. The pixel values in the image matrix are direct indices into the colormap.