Question

So I made my own class in order to hold a 3D vertex. That basically looks like:

class Vertex                                    // Vertex Class
{
public:
    float x;                                // X Component
    float y;                                // Y Component
    float z;                                // Z Component

    float getX() {
        return x;
    }
    float getY() {
        return y;
    }
    float getZ() {
        return z;
    }
};

Now I need to make a 2D array of these but when I initialize it it won’t work. Basically each row will be a face of a polygon. And each column will contain a vertex of that row. So if one row is

(0,0,0) (1, 1, 1) (3, 3, 3) (4,4,4);

Then that row will represent a face with vertices (0,0,0) (1, 1, 1) (3, 3, 3) (4,4,4);

Now when I try to initialize it using

Vertex faces = new Vertex[num_faces][4];

It work work. This seems pretty simple so what am I doing wrong?

EDIT: I changed it to

Vertex *faces = new Vertex[num_faces][4];

and I get this error:

cannot convert from ‘Vertex (*)[4]’ to ‘Vertex *’

Answer 1

cannot convert from 'Vertex (*)[4]' to 'Vertex *'

The compiler is already telling you what you need to know, just change the type of faces:

Vertex (*faces)[4] = new Vertex[num_faces][4];