How do I use std::vector for 3D coordinates in C++?

How do I use std::vector for 3D coordinates in C++?

You can use std::vector to store 3D coordinates by creating a vector of vectors. For example: std::vector<std::vector<double>> coordinates;.

Can you show me a code example?

Sure! Here's a simple example:

#include <vector>
#include <iostream>

int main() {
    std::vector<std::vector<double>> points = {{1.0, 2.0, 3.0}, {4.0, 5.0, 6.0}};
    for (const auto& point : points) {
        std::cout << "Point: (" << point[0] << ", " << point[1] << ", " << point[2] << ")\n";
    }
    return 0;
}

What if I want to add more points dynamically?

You can use the push_back method to add new points. For example:

std::vector<double> newPoint = {7.0, 8.0, 9.0};
points.push_back(newPoint);

How do I access a specific point in the vector?

You can access a specific point using its index. For example, to access the first point: points[0].