How to add three dimensional data points to MATLAB

I want to add 3D data points associated with spacecraft debris positions in space. Do I create a 3 x n matrix of Latitude, Longitude, Altitude? The goal is to use the multiobjective genetic algroithm to locate the maximum density of debris objects at a given point in time and plot it.

[KSSV]

How you have the points? I mean in what format?

[Timothy Turk]

Here is an example of one object. There are thousands that would need to go into a matrix.

Latitude -85.27494, Longitude, -132.52163, Altitude 790 kilometers, where -latitude is south of the equator and -longitude is west of the prime meridian (PM).

Latitude is 0 to 90 degrees in nothern hemishere and 0 to -90 in the southern hemisphere.

Longitude is 0 to 180 degrees east of the PM and 0 to -180 west of the PM.

Hope this helps.

Thanks for helping me.

[Adam Danz]

Are you asking how to create such data or how to organize data that you already have!?

The goal is very unclear.

To create such a 3D grid,

>> n = 100; 
>> lat = linspace(-90,90,n); 
>> lon = linspace(-180,180,n); 
>> alt = linspace(0,1000,n); 
>> [LA,LO,AL] = meshgrid(lat,lon,alt);

[Timothy Turk]

Thank you for helping me.

I do have the data and I am looking to organize and display it in grid like you have provided.

Some examples of the data are:

Latitude, Longitude, Altitude

-85.27494, -132.52163, 790 km

-85.90271, -133.11105, 790 km

-85.91974, -145.27083, 790 km

-85.63104, -149.66237, 790 km

-85.68855, -158.26341, 790 km

Do I use something like the following to access the data from an array?

ineedX = find(Xgrid >= 0 & Xgrid <= 90);

ineedY = find(Ygrid >= -180 & Ygrid <= 180);

ineedZ = find(Zgrid >= 650 & Zgrid <= 850);

DataExtract = Data(ineedX,ineedY,ineedZ);

n = 100;

lat = linspace(-90,90,n);

lon = linspace(-180,180,n);

alt = linspace(0,1000,n);

[LA,LO,AL] = meshgrid(lat,lon,alt);

[Adam Danz]

Better to use logical indexing; if your data are a mx3 matrix as you show above,

ineedX = longitude >= 0 & longitude <= 90; 
ineedY = latitude >= -180 & latitude <= 180; 
ineedZ = altitude >= 650 & altitude <= 850; 

select = ineedX & ineedY & ineedZ; 

m(select, :)

[Timothy Turk]

Thank you, Adam.

Answer 1

[KSSV]

Refer this: https://in.mathworks.com/matlabcentral/answers/412639-creating-surface-plot-from-a-matrix-with-3-columns