Plotting two sets of 3D points on same graph

If I have a data set consiting of two sets of X, Y, and Z values. The data is collected by two sensors at the same time.

IS it possible to map both sets of points (X,Y,Z) on the same graph and distinguish the sets by colour?

How would I go about grating such a graph?

Answer 1

[Kevin Phung]

You can plot multiple points on a graph by using the

hold on

function. take a look:

https://www.mathworks.com/help/matlab/ref/hold.html

heres an example with different colors:

x= 1:5
y= 1:5
y2 = 5:-1:1

figure
plot(x,y,'r') % you can use character codes to specific color.. like 'r' for red, ' b' for blue
hold on
plot(x,y2,'Color',[0 1 0]) %or by assinging RBG values to the color property of a line.

instead of the hold on, you can also plot multiple sets with the plot function:

plot(x,y,'r',x2,y2,'b')

[Andrew Dickinson]

Thank you for the information will try

Answer 2

[Mauro Fusco]

Hi,

you can use, for example, mesh to make two surfaces representing Z values over the X,Y grid. For example (assuming X,Y , and computing Z1 and Z2 for making the example):

x = 0:0.1:1; % x values

y = 0:0.1:4; % y values

[X,Y] = meshgrid(x,y); %build a grid

Z1 = sin(X)+cos(Y); % simulated z1 values

Z2 = X.^2 - Y.^2; %simulated z2 values

figure;

m1 = mesh(Z1); %plot surface sensor 1

m1.FaceColor = 'red'; %select color

hold on;

m2 = mesh(Z2); %plot surface sensor 2

m2.FaceColor = 'blue'; %select color

[Andrew Dickinson]

Thank you for this option will try it