write_test()
{
int i,j;
PlyFile *ply;
int nelems;
char **elist;
int file_type;
float version;
int nverts = sizeof (verts) / sizeof (Vertex);
int nfaces = sizeof (faces) / sizeof (Face);
/* create the vertex index lists for the faces */
for (i = 0; i < nfaces; i++)
faces[i].verts = vert_ptrs[i];
/* open either a binary or ascii PLY file for writing */
/* (the file will be called "test.ply" because the routines */
/* enforce the .ply filename extension) */
#if 1
ply = ply_open_for_writing("test", 2, elem_names, PLY_ASCII, &version);
#else
ply = ply_open_for_writing("test", 2, elem_names, PLY_BINARY_BE, &version);
#endif
/* describe what properties go into the vertex and face elements */
ply_element_count (ply, "vertex", nverts);
ply_describe_property (ply, "vertex", &vert_props[0]);
ply_describe_property (ply, "vertex", &vert_props[1]);
ply_describe_property (ply, "vertex", &vert_props[2]);
ply_element_count (ply, "face", nfaces);
ply_describe_property (ply, "face", &face_props[0]);
ply_describe_property (ply, "face", &face_props[1]);
/* write a comment and an object information field */
ply_put_comment (ply, "author: Greg Turk");
ply_put_obj_info (ply, "random information");
/* we have described exactly what we will put in the file, so */
/* we are now done with the header info */
ply_header_complete (ply);
/* set up and write the vertex elements */
ply_put_element_setup (ply, "vertex");
for (i = 0; i < nverts; i++)
ply_put_element (ply, (void *) &verts[i]);
/* set up and write the face elements */
ply_put_element_setup (ply, "face");
for (i = 0; i < nfaces; i++)
ply_put_element (ply, (void *) &faces[i]);
/* close the PLY file */
ply_close (ply);
}
void
write_file()
{
int i,j,k;
PlyFile *ply;
int num_elems;
char *elem_name;
/*** Write out the final PLY object ***/
ply = ply_write (stdout, nelems, elist, file_type);
/* describe what properties go into the vertex and face elements */
ply_element_count (ply, "vertex", nverts);
ply_describe_property (ply, "vertex", &vert_props[0]);
ply_describe_property (ply, "vertex", &vert_props[1]);
ply_describe_property (ply, "vertex", &vert_props[2]);
ply_describe_property (ply, "vertex", &vert_props[3]);
ply_describe_property (ply, "vertex", &vert_props[4]);
ply_describe_property (ply, "vertex", &vert_props[5]);
ply_describe_other_properties (ply, vert_other, offsetof(Vertex,other_props));
ply_element_count (ply, "face", nfaces);
ply_describe_property (ply, "face", &face_props[0]);
ply_describe_other_properties (ply, face_other, offsetof(Face,other_props));
ply_describe_other_elements (ply, other_elements);
for (i = 0; i < num_comments; i++)
ply_put_comment (ply, comments[i]);
for (i = 0; i < num_obj_info; i++)
ply_put_obj_info (ply, obj_info[i]);
ply_header_complete (ply);
/* set up and write the vertex elements */
ply_put_element_setup (ply, "vertex");
for (i = 0; i < nverts; i++)
ply_put_element (ply, (void *) vlist[i]);
/* set up and write the face elements */
ply_put_element_setup (ply, "face");
for (i = 0; i < nfaces; i++)
ply_put_element (ply, (void *) flist[i]);
ply_put_other_elements (ply);
/* close the PLY file */
ply_close (ply);
}
/******************************************************************************
Add a comment to a PLY file descriptor.
Entry:
plyfile - PLY file descriptor
line - line containing comment
******************************************************************************/
void add_comment (PlyFile *plyfile, char *line)
{
int i;
/* skip over "comment" and leading spaces and tabs */
i = 7;
while (line[i] == ' ' || line[i] == '\t')
i++;
ply_put_comment (plyfile, &line[i]);
}
