computational-geometry-in-c/src/main.c

#include <stdio.h>

#include "vertex.h"
#include "math.h"

void chapter1() {
    // Initialize our chapter 1 polygon
    struct Vertex *v0  = new_vertex(0, 0, 0);
    struct Vertex *v1  = new_vertex(1, 10, 7);
    struct Vertex *v2  = new_vertex(2, 12, 3);
    struct Vertex *v3  = new_vertex(3, 20, 8);
    struct Vertex *v4  = new_vertex(4, 13, 17);
    struct Vertex *v5  = new_vertex(5, 10, 12);
    struct Vertex *v6  = new_vertex(6, 12, 14);
    struct Vertex *v7  = new_vertex(7, 14, 9);
    struct Vertex *v8  = new_vertex(8, 8, 10);
    struct Vertex *v9  = new_vertex(9, 6, 14);
    struct Vertex *v10 = new_vertex(10, 10, 15);
    struct Vertex *v11 = new_vertex(11, 7, 18);
    struct Vertex *v12 = new_vertex(12, 0, 16);
    struct Vertex *v13 = new_vertex(13, 1, 13);
    struct Vertex *v14 = new_vertex(14, 3, 15);
    struct Vertex *v15 = new_vertex(15, 5, 8);
    struct Vertex *v16 = new_vertex(16, -2, 9);
    struct Vertex *v17 = new_vertex(17, 5, 5);

    add_vertex(v0, v0, v1);
    add_vertex(v0, v1, v2);
    add_vertex(v0, v2, v3);
    add_vertex(v0, v3, v4);
    add_vertex(v0, v4, v5);
    add_vertex(v0, v5, v6);
    add_vertex(v0, v6, v7);
    add_vertex(v0, v7, v8);
    add_vertex(v0, v8, v9);
    add_vertex(v0, v9, v10);
    add_vertex(v0, v10, v11);
    add_vertex(v0, v11, v12);
    add_vertex(v0, v12, v13);
    add_vertex(v0, v13, v14);
    add_vertex(v0, v14, v15);
    add_vertex(v0, v15, v16);
    add_vertex(v0, v16, v17);

    init_ear(v0);

    print_polygon(v0);

    triangulate(v0);

    free_polygon(&v0);
}

int main()
{
    chapter1();
    return 0;
}