int main()
{
std::cerr << "### There should be three errors following this line...\n";
assert(! read("data/read_test/bug_1.xyz"));
assert(! read("data/read_test/bug_2.xyz"));
assert(! read("data/read_test/bug_3.xyz"));
std::cerr << "### ... Done. Now, there should not be any error.\n";
assert(read("data/read_test/ok_1.xyz"));
assert(read("data/read_test/ok_2.xyz"));
assert(read("data/read_test/ok_3.xyz"));
std::vector<PointVectorPair> pv_pairs;
read("data/read_test/ok_2.xyz", pv_pairs);
assert(pv_pairs.size() == 4);
assert(pv_pairs[0] == std::make_pair(Point_3(2,3,4), Vector_3(4,4,2)));
assert(pv_pairs[1] == std::make_pair(Point_3(3,4,6), Vector_3(0,0,0)));
assert(pv_pairs[2] == std::make_pair(Point_3(3,6,7), Vector_3(3,5,6)));
assert(pv_pairs[3] == std::make_pair(Point_3(1,3,4), Vector_3(4,6,8)));
pv_pairs.clear();
assert(read_off("data/read_test/ok_1.off", pv_pairs));
assert(pv_pairs.size() == 4);
assert(pv_pairs[0] == std::make_pair(Point_3(3,2,0), Vector_3(1,2,3)));
assert(pv_pairs[1] == std::make_pair(Point_3(1,2,3), Vector_3(0,0,0)));
assert(pv_pairs[2] == std::make_pair(Point_3(4,5,6), Vector_3(0,0,0)));
assert(pv_pairs[3] == std::make_pair(Point_3(7,8,9), Vector_3(0,0,0)));
pv_pairs.clear ();
assert(read_ply("data/read_test/simple.ply", pv_pairs));
assert(pv_pairs[0] == std::make_pair(Point_3(1,1,1), Vector_3(2,2,2)));
assert(pv_pairs[1] == std::make_pair(Point_3(3,3,3), Vector_3(4,4,4)));
assert(pv_pairs[2] == std::make_pair(Point_3(5,5,5), Vector_3(6,6,6)));
pv_pairs.clear ();
assert(read_ply("data/read_test/simple_ascii.ply", pv_pairs));
assert(pv_pairs[0] == std::make_pair(Point_3(1,1,1), Vector_3(2,2,2)));
assert(pv_pairs[1] == std::make_pair(Point_3(3,3,3), Vector_3(4,4,4)));
assert(pv_pairs[2] == std::make_pair(Point_3(5,5,5), Vector_3(6,6,6)));
pv_pairs.clear ();
assert(read_ply("data/read_test/simple_with_flag.ply", pv_pairs));
assert(pv_pairs[0] == std::make_pair(Point_3(1,1,1), Vector_3(2,2,2)));
assert(pv_pairs[1] == std::make_pair(Point_3(3,3,3), Vector_3(4,4,4)));
assert(pv_pairs[2] == std::make_pair(Point_3(5,5,5), Vector_3(6,6,6)));
return 0;
}
returnPLY loadPly(FILE* f)
{
PlyFile* input;
// get the ply structure and open the file
input = read_ply(f);
// read in the data
store_ply(input,
&vertices, &faces,
&vertexcount, &facecount,
&vertexnormals, &facenormals);
// close the file
close_ply(input);
printf("vertexcount: %d\n", vertexcount);
/*find_center(cx, cy, cz, x_min, x_max,
y_min, y_max, z_min, z_max);
printf("geometry center = %f %f %f \n", cx, cy, cz);
printf("geometry bound = x: %f %f y: %f %f z: %f %f\n",
x_min, x_max, y_min, y_max, z_min, z_max); */
returnPLY _returnPLY(vertices,faces,vertexcount,facecount,vertexnormals, facenormals);
return _returnPLY;
}
read_file()
{
int i,j;
int elem_count;
char *elem_name;
/*** Read in the original PLY object ***/
in_ply = read_ply (stdin);
for (i = 0; i < in_ply->num_elem_types; i++) {
/* prepare to read the i'th list of elements */
elem_name = setup_element_read_ply (in_ply, i, &elem_count);
if (equal_strings ("vertex", elem_name)) {
/* create a vertex list to hold all the vertices */
vlist = (Vertex **) malloc (sizeof (Vertex *) * elem_count);
nverts = elem_count;
/* set up for getting vertex elements */
setup_property_ply (in_ply, &vert_props[0]);
setup_property_ply (in_ply, &vert_props[1]);
setup_property_ply (in_ply, &vert_props[2]);
vert_other = get_other_properties_ply (in_ply,
offsetof(Vertex,other_props));
/* grab all the vertex elements */
for (j = 0; j < elem_count; j++) {
vlist[j] = (Vertex *) malloc (sizeof (Vertex));
get_element_ply (in_ply, (void *) vlist[j]);
}
}
else
get_other_element_ply (in_ply);
}
close_ply (in_ply);
}
int open_ply(const char* filename)
{
/* bounding box */
int I;
struct triangle_t* t,**cursor;
float x1=+1e18f,x2=-1e18f;
float y1=+1e18f,y2=-1e18f;
float z1=+1e18f,z2=-1e18f;
PlyProperty vert_prop[3]={
{ "x", Float32, Float32, 0, 0, 0, 0, 0},
{ "y", Float32, Float32, 4, 0, 0, 0, 0},
{ "z", Float32, Float32, 8, 0, 0, 0, 0}
};
PlyProperty face_prop ={"vertex_indices", Int32, Int32, 4,PLY_LIST, Int32, Int32, 0};
PlyProperty** props=NULL;
int numvertices,numproperties,numtriangles,numstrips,numfaces;
int clockwise;
struct {int nverts,*verts;} face;
int h,k;
float maxdim;
PlyFile* ply=0;
FILE* file = fopen( filename, "rb" );
if (!file)
return 0;
ply = read_ply(file);
if (!ply)
{
fclose(file);
return 0;
}
cursor=&(mesh.triangles);
props = get_element_description_ply(ply, "vertex", &numvertices, &numproperties);
mesh.vertices=(struct vertex_t*)malloc(sizeof(struct vertex_t)*numvertices);
mesh.numvertices=numvertices;
get_element_setup_ply(ply, "vertex", 3,vert_prop);
for( k=0;k<numvertices; ++k)
{
struct vertex_t* v=mesh.vertices+k;
get_element_ply( ply, (void*)v);
x1=min2(x1,v->x);x2=max2(x2,v->x);
y1=min2(y1,v->y);y2=max2(y2,v->y);
z1=min2(z1,v->z);z2=max2(z2,v->z);
}
/* normalize to unit box to [-1,+1],[-1,+1],[-1,+1] mantaining proportions */
maxdim=max2(x2-x1,y2-y1);
maxdim=max2(maxdim,z2-z1);
for( k=0;k<numvertices; ++k)
{
struct vertex_t* v=mesh.vertices+k;
v->x=2*((v->x-x1)/maxdim-0.5f);
v->y=2*((v->y-y1)/maxdim-0.5f);
v->z=2*((v->z-z1)/maxdim-0.5f);
}
numtriangles=0;
if (props = get_element_description_ply( ply, "face", &numfaces, &numproperties))
{
get_element_setup_ply( ply, "face", 1, &face_prop);
for(h=0; h<numfaces; h++ )
{
get_element_ply( ply, (void*)&face);
for(k=2; k<face.nverts;++k)
{
t=(struct triangle_t*)malloc(sizeof(struct triangle_t));
t->i0=face.verts[0 ];
t->i1=face.verts[k-1];
t->i2=face.verts[k ];
t->next=0;
(*cursor)=t;
cursor=&(t->next);
}
free(face.verts);
}
}
else
{
props = get_element_description_ply( ply, "tristrips", &numstrips, &numproperties);
get_element_setup_ply(ply,"tristrips",1,&face_prop);
for(k=0; k<numstrips;++k )
{
get_element_ply( ply, (void*)&face);
clockwise=1;
for (I=2;I< face.nverts; I++)
{
if (face.verts[I] == -1)
{
I += 2;
clockwise = 1;
}
else
{
t=(struct triangle_t*)malloc(sizeof(struct triangle_t));
t->i0=face.verts[I-2];
t->i1=face.verts[I-1];
t->i2=face.verts[I ];
if (!clockwise) swap_int(t->i1,t->i2);
t->next=0;
(*cursor)=t;
cursor=&(t->next);
clockwise = 1-clockwise;
}
}
free(face.verts);
}
}
//close_ply( ply );
fclose(file);
set_normals();
return 1; /* ok */
}
void
read_file(void)
{
int i,j;
int elem_count;
char *elem_name;
PlyFile *in_ply;
/*** Read in the original PLY object ***/
in_ply = read_ply (stdin);
for (i = 0; i < in_ply->num_elem_types; i++) {
/* prepare to read the i'th list of elements */
elem_name = setup_element_read_ply (in_ply, i, &elem_count);
if (equal_strings ("vertex", elem_name)) {
/* create a vertex list to hold all the vertices */
vlist = (Vertex **) malloc (sizeof (Vertex *) * elem_count);
nverts = elem_count;
/* set up for getting vertex elements */
setup_property_ply (in_ply, &vert_props[0]);
setup_property_ply (in_ply, &vert_props[1]);
setup_property_ply (in_ply, &vert_props[2]);
for (j = 0; j < in_ply->elems[i]->nprops; j++) {
PlyProperty *prop;
prop = in_ply->elems[i]->props[j];
if (equal_strings ("r", prop->name)) {
setup_property_ply (in_ply, &vert_props[3]);
per_vertex_color = 1;
}
if (equal_strings ("g", prop->name)) {
setup_property_ply (in_ply, &vert_props[4]);
per_vertex_color = 1;
}
if (equal_strings ("b", prop->name)) {
setup_property_ply (in_ply, &vert_props[5]);
per_vertex_color = 1;
}
if (equal_strings ("nx", prop->name)) {
setup_property_ply (in_ply, &vert_props[6]);
has_normals = 1;
}
if (equal_strings ("ny", prop->name)) {
setup_property_ply (in_ply, &vert_props[7]);
has_normals = 1;
}
if (equal_strings ("nz", prop->name)) {
setup_property_ply (in_ply, &vert_props[8]);
has_normals = 1;
}
}
vert_other = get_other_properties_ply (in_ply,
offsetof(Vertex,other_props));
/* grab all the vertex elements */
for (j = 0; j < elem_count; j++) {
vlist[j] = (Vertex *) malloc (sizeof (Vertex));
vlist[j]->r = 1;
vlist[j]->g = 1;
vlist[j]->b = 1;
get_element_ply (in_ply, (void *) vlist[j]);
}
}
else if (equal_strings ("face", elem_name)) {
/* create a list to hold all the face elements */
flist = (Face **) malloc (sizeof (Face *) * elem_count);
nfaces = elem_count;
/* set up for getting face elements */
setup_property_ply (in_ply, &face_props[0]);
face_other = get_other_properties_ply (in_ply,
offsetof(Face,other_props));
/* grab all the face elements */
for (j = 0; j < elem_count; j++) {
flist[j] = (Face *) malloc (sizeof (Face));
get_element_ply (in_ply, (void *) flist[j]);
}
}
else
get_other_element_ply (in_ply);
}
close_ply (in_ply);
free_ply (in_ply);
}
main(int argc, char *argv[])
{
int i,j,k;
PlyFile *in_ply;
PlyFile *out_ply;
int nelems;
char **elist;
int file_type;
float version;
int nprops;
int num_elems;
PlyProperty **plist;
PlyProperty **plist_copy;
PlyProperty *prop;
char *elem_name;
char *data;
int offset;
int *offset_list;
int **lists;
int *list_count;
char **list_ptr;
int verbose_flag = 0;
#ifndef WRITE_ASCII
#ifndef WRITE_BINARY
fprintf (stderr, "'%s' compiled incorrectly.\n", argv[0]);
fprintf (stderr,
"Must have WRITE_ASCII or WRITE_BINARY defined during compile.\n");
exit (-1);
#endif
#endif
/* maybe print out help message */
#ifdef WRITE_ASCII
if (argc > 2 || (argc == 2 && !equal_strings (argv[1], "-p"))) {
fprintf (stderr, "usage: %s [flags] <infile >outfile\n", argv[0]);
fprintf (stderr, " -p (print element labels)\n");
exit (0);
}
#endif
#ifdef WRITE_BINARY
if (argc > 1) {
fprintf (stderr, "usage: %s <infile >outfile\n", argv[0]);
exit (0);
}
#endif
if (argc == 2 && equal_strings (argv[1], "-p"))
verbose_flag = 1;
/* open the input and output files */
in_ply = read_ply (stdin);
elist = get_element_list_ply (in_ply, &nelems);
#ifdef WRITE_ASCII
out_ply = write_ply (stdout, nelems, elist, PLY_ASCII);
#endif
#ifdef WRITE_BINARY
out_ply = write_ply (stdout, nelems, elist, PLY_BINARY_BE);
#endif
/* allocate space for various lists that keep track of the elements */
plist_copy = (PlyProperty **) malloc (sizeof (PlyProperty *) * nelems);
offset_list = (int *) malloc (sizeof (int) * nelems);
lists = (int **) malloc (sizeof (int *) * nelems);
list_count = (int *) malloc (sizeof (int));
/* go through each kind of element that we learned is in the file */
/* and come up with a list that has offsets for all properties */
for (i = 0; i < nelems; i++) {
/* get the description of the element */
elem_name = elist[i];
plist = get_element_description_ply(in_ply, elem_name, &num_elems, &nprops);
/* make room for a list of the lists in an element, so that */
/* we can later easily free up the space created by malloc'ed lists */
list_count[i] = 0;
lists[i] = (int *) malloc (sizeof (int) * nprops);
/* set up pointers into data */
offset = 0;
for (j = 0; j < nprops; j++) {
plist[j]->offset = offset;
offset += 8;
if (plist[j]->is_list) {
plist[j]->count_offset = offset;
lists[i][list_count[i]] = offset - 8;
list_count[i]++;
offset += 8;
}
}
offset_list[i] = offset;
/* copy the property list */
plist_copy[i] = (PlyProperty *) malloc (sizeof (PlyProperty) * nprops);
prop = plist_copy[i];
for (j = 0; j < nprops; j++) {
prop->name = plist[j]->name;
prop->external_type = plist[j]->external_type;
prop->internal_type = plist[j]->external_type;
prop->offset = plist[j]->offset;
prop->is_list = plist[j]->is_list;
prop->count_external = plist[j]->count_external;
prop->count_internal = plist[j]->count_external;
prop->count_offset = plist[j]->count_offset;
prop++;
}
element_layout_ply (out_ply, elem_name, num_elems, nprops, plist_copy[i]);
}
/* copy the comments and obj_info */
copy_comments_ply (out_ply, in_ply);
copy_obj_info_ply (out_ply, in_ply);
/* finish the header for the output file */
header_complete_ply (out_ply);
/* copy all the element information */
for (i = 0; i < nelems; i++) {
/* get the description of the element */
elem_name = elist[i];
plist = get_element_description_ply(in_ply, elem_name, &num_elems, &nprops);
/* allocate space for an element */
data = (char *) malloc (8 * offset_list[i]);
/* set up for getting elements */
get_element_setup_ply (in_ply, elem_name, nprops, plist_copy[i]);
put_element_setup_ply (out_ply, elem_name);
/* possibly print out name of element */
if (verbose_flag)
fprintf (out_ply->fp, "%s:\n", elem_name);
/* copy all the elements */
if (list_count[i]) {
/* need to free the lists */
for (j = 0; j < num_elems; j++) {
get_element_ply (in_ply, (void *) data);
put_element_ply (out_ply, (void *) data);
for (k = 0; k < list_count[i]; k++) {
list_ptr = (char **) (data + lists[i][k]);
free (*list_ptr);
}
}
}
else {
/* no lists */
for (j = 0; j < num_elems; j++) {
get_element_ply (in_ply, (void *) data);
put_element_ply (out_ply, (void *) data);
}
}
}
/* close the PLY files */
close_ply (in_ply);
close_ply (out_ply);
}
int _tmain(int argc, _TCHAR* argv[])
{
#ifdef WIN32
_fmode = _O_BINARY;
#endif
printf("This is QSplatMake version %s.\n", QSPLATMAKE_VERSION);
// Parse command-line params
//strncasecmp(char*s1,char*s2,size_t n):compare first n chars of s1 and s2
//ignore case and return 0 if equal else if s1>s2 return >0 else if s1<s2 return <0;
if ((argc < 4) ||
!strncasecmp(argv[1], "-h", 2) ||
!strncasecmp(argv[1], "--h", 3))
usage(argv[0]);
bool is_pointfile = false;
int i = strncasecmp(argv[1], "point" , 5);
if(!strncasecmp(argv[1], "point" , 5))
is_pointfile = true;
const char *infilename = argv[2];
const char *outfilename = argv[3];
float threshold = 0;
printf("argv2:%s\n",infilename);
printf("argv3:%s\n",outfilename);
if (argc >= 5 && !strncasecmp(argv[1], "-m", 2)) {
threshold = atof(argv[2]);
infilename = argv[3];
outfilename = argv[4];
}
// Read the .ply file
int numleaves, numfaces;
face *faces;
bool havecolor;
QTree_Node *leaves;
std::string comments;
if (!read_ply(infilename, numleaves, leaves, numfaces, faces, havecolor, comments)) {
fprintf(stderr, "Couldn't read input file %s\n", infilename);
exit(1);
}
if (numleaves < 4) {
fprintf(stderr, "Ummm... That's an awfully small mesh you've got there...\n");
exit(1);
}
if(!is_pointfile)
if (numfaces < 4) {
fprintf(stderr, "Ummm... I need a *mesh* as input. That means triangles 'n stuff...\n");
exit(1);
}
// Compute per-vertex normals
if(!is_pointfile)
{
find_normals(numleaves, leaves, numfaces, faces);
// Merge nodes
merge_nodes(numleaves, leaves, numfaces, faces, havecolor, threshold);
// Compute initial splat sizes
find_splat_sizes(numleaves, leaves, numfaces, faces);
}
else
{
compute_splat_sizes(numleaves, leaves);
}
// Don't need face data any more
delete [] faces;
// Initialize the tree
QTree qt(numleaves, leaves, havecolor);
// Build the tree...
qt.BuildTree();
// ... and write it out
qt.Write(outfilename, comments);
system("PAUSE");
return 0;
}
int main(int argc, char** argv) {
parse_args(argc,argv);
auto mesh = read_ply(filename_ply, flipface, normalizesize, flipyz);
Serializer::write_json(mesh, filename_igl, false);
}
bool
TrisetObject::loadPLY(QString flnm)
{
m_position = Vec(0,0,0);
m_scale = Vec(1,1,1);
typedef struct Vertex {
float x,y,z;
float r,g,b;
float nx,ny,nz;
void *other_props; /* other properties */
} Vertex;
typedef struct Face {
unsigned char nverts; /* number of vertex indices in list */
int *verts; /* vertex index list */
void *other_props; /* other properties */
} Face;
PlyProperty vert_props[] = { /* list of property information for a vertex */
{"x", Float32, Float32, offsetof(Vertex,x), 0, 0, 0, 0},
{"y", Float32, Float32, offsetof(Vertex,y), 0, 0, 0, 0},
{"z", Float32, Float32, offsetof(Vertex,z), 0, 0, 0, 0},
{"red", Float32, Float32, offsetof(Vertex,r), 0, 0, 0, 0},
{"green", Float32, Float32, offsetof(Vertex,g), 0, 0, 0, 0},
{"blue", Float32, Float32, offsetof(Vertex,b), 0, 0, 0, 0},
{"nx", Float32, Float32, offsetof(Vertex,nx), 0, 0, 0, 0},
{"ny", Float32, Float32, offsetof(Vertex,ny), 0, 0, 0, 0},
{"nz", Float32, Float32, offsetof(Vertex,nz), 0, 0, 0, 0},
};
PlyProperty face_props[] = { /* list of property information for a face */
{"vertex_indices", Int32, Int32, offsetof(Face,verts),
1, Uint8, Uint8, offsetof(Face,nverts)},
};
/*** the PLY object ***/
int nverts,nfaces;
Vertex **vlist;
Face **flist;
PlyOtherProp *vert_other,*face_other;
bool per_vertex_color = false;
bool has_normals = false;
int i,j;
int elem_count;
char *elem_name;
PlyFile *in_ply;
/*** Read in the original PLY object ***/
FILE *fp = fopen(flnm.toAscii().data(), "rb");
in_ply = read_ply (fp);
for (i = 0; i < in_ply->num_elem_types; i++) {
/* prepare to read the i'th list of elements */
elem_name = setup_element_read_ply (in_ply, i, &elem_count);
if (equal_strings ("vertex", elem_name)) {
/* create a vertex list to hold all the vertices */
vlist = (Vertex **) malloc (sizeof (Vertex *) * elem_count);
nverts = elem_count;
/* set up for getting vertex elements */
setup_property_ply (in_ply, &vert_props[0]);
setup_property_ply (in_ply, &vert_props[1]);
setup_property_ply (in_ply, &vert_props[2]);
for (j = 0; j < in_ply->elems[i]->nprops; j++) {
PlyProperty *prop;
prop = in_ply->elems[i]->props[j];
if (equal_strings ("r", prop->name) ||
equal_strings ("red", prop->name)) {
setup_property_ply (in_ply, &vert_props[3]);
per_vertex_color = true;
}
if (equal_strings ("g", prop->name) ||
equal_strings ("green", prop->name)) {
setup_property_ply (in_ply, &vert_props[4]);
per_vertex_color = true;
}
if (equal_strings ("b", prop->name) ||
equal_strings ("blue", prop->name)) {
setup_property_ply (in_ply, &vert_props[5]);
per_vertex_color = true;
}
if (equal_strings ("nx", prop->name)) {
setup_property_ply (in_ply, &vert_props[6]);
has_normals = true;
}
if (equal_strings ("ny", prop->name)) {
setup_property_ply (in_ply, &vert_props[7]);
has_normals = true;
}
if (equal_strings ("nz", prop->name)) {
setup_property_ply (in_ply, &vert_props[8]);
has_normals = true;
}
}
vert_other = get_other_properties_ply (in_ply,
offsetof(Vertex,other_props));
/* grab all the vertex elements */
for (j = 0; j < elem_count; j++) {
vlist[j] = (Vertex *) malloc (sizeof (Vertex));
get_element_ply (in_ply, (void *) vlist[j]);
}
}
else if (equal_strings ("face", elem_name)) {
/* create a list to hold all the face elements */
flist = (Face **) malloc (sizeof (Face *) * elem_count);
nfaces = elem_count;
/* set up for getting face elements */
setup_property_ply (in_ply, &face_props[0]);
face_other = get_other_properties_ply (in_ply,
offsetof(Face,other_props));
/* grab all the face elements */
for (j = 0; j < elem_count; j++) {
flist[j] = (Face *) malloc (sizeof (Face));
get_element_ply (in_ply, (void *) flist[j]);
}
}
else
get_other_element_ply (in_ply);
}
close_ply (in_ply);
free_ply (in_ply);
if (Global::volumeType() == Global::DummyVolume)
{
float minX, maxX;
float minY, maxY;
float minZ, maxZ;
minX = maxX = vlist[0]->x;
minY = maxY = vlist[0]->y;
minZ = maxZ = vlist[0]->z;
for(int i=0; i<nverts; i++)
{
minX = qMin(minX, vlist[i]->x);
maxX = qMax(maxX, vlist[i]->x);
minY = qMin(minY, vlist[i]->y);
maxY = qMax(maxY, vlist[i]->y);
minZ = qMin(minZ, vlist[i]->z);
maxZ = qMax(maxZ, vlist[i]->z);
}
minX = floor(minX);
minY = floor(minY);
minZ = floor(minZ);
maxX = ceil(maxX);
maxY = ceil(maxY);
maxZ = ceil(maxZ);
int h = maxX-minX+1;
int w = maxY-minY+1;
int d = maxZ-minZ+1;
m_nX = d;
m_nY = w;
m_nZ = h;
m_position = Vec(-minX, -minY, -minZ);
// bool ok;
// QString text = QInputDialog::getText(0,
// "Please enter grid size",
// "Grid Size",
// QLineEdit::Normal,
// QString("%1 %2 %3").\
// arg(d).arg(w).arg(h),
// &ok);
// if (!ok || text.isEmpty())
// {
// QMessageBox::critical(0, "Cannot load PLY", "No grid");
// return false;
// }
//
// int nx=0;
// int ny=0;
// int nz=0;
// QStringList gs = text.split(" ", QString::SkipEmptyParts);
// if (gs.count() > 0) nx = gs[0].toInt();
// if (gs.count() > 1) ny = gs[1].toInt();
// if (gs.count() > 2) nz = gs[2].toInt();
// if (nx > 0 && ny > 0 && nz > 0)
// {
// m_nX = nx;
// m_nY = ny;
// m_nZ = nz;
// }
// else
// {
// QMessageBox::critical(0, "Cannot load triset", "No grid");
// return false;
// }
//
// if (d == m_nX && w == m_nY && h == m_nZ)
// m_position = Vec(-minX, -minY, -minZ);
}
else
{
Vec dim = VolumeInformation::volumeInformation(0).dimensions;
m_nZ = dim.x;
m_nY = dim.y;
m_nX = dim.z;
}
m_vertices.resize(nverts);
for(int i=0; i<nverts; i++)
m_vertices[i] = Vec(vlist[i]->x,
vlist[i]->y,
vlist[i]->z);
m_normals.clear();
if (has_normals)
{
m_normals.resize(nverts);
for(int i=0; i<nverts; i++)
m_normals[i] = Vec(vlist[i]->nx,
vlist[i]->ny,
vlist[i]->nz);
}
m_vcolor.clear();
if (per_vertex_color)
{
m_vcolor.resize(nverts);
for(int i=0; i<nverts; i++)
m_vcolor[i] = Vec(vlist[i]->r/255.0f,
vlist[i]->g/255.0f,
vlist[i]->b/255.0f);
}
// only triangles considered
int ntri=0;
for (int i=0; i<nfaces; i++)
{
if (flist[i]->nverts >= 3)
ntri++;
}
m_triangles.resize(3*ntri);
int tri=0;
for(int i=0; i<nfaces; i++)
{
if (flist[i]->nverts >= 3)
{
m_triangles[3*tri+0] = flist[i]->verts[0];
m_triangles[3*tri+1] = flist[i]->verts[1];
m_triangles[3*tri+2] = flist[i]->verts[2];
tri++;
}
}
m_tvertices.resize(nverts);
m_tnormals.resize(nverts);
m_texValues.resize(nverts);
Vec bmin = m_vertices[0];
Vec bmax = m_vertices[0];
for(int i=0; i<nverts; i++)
{
bmin = StaticFunctions::minVec(bmin, m_vertices[i]);
bmax = StaticFunctions::maxVec(bmax, m_vertices[i]);
}
m_centroid = (bmin + bmax)/2;
m_enclosingBox[0] = Vec(bmin.x, bmin.y, bmin.z);
m_enclosingBox[1] = Vec(bmax.x, bmin.y, bmin.z);
m_enclosingBox[2] = Vec(bmax.x, bmax.y, bmin.z);
m_enclosingBox[3] = Vec(bmin.x, bmax.y, bmin.z);
m_enclosingBox[4] = Vec(bmin.x, bmin.y, bmax.z);
m_enclosingBox[5] = Vec(bmax.x, bmin.y, bmax.z);
m_enclosingBox[6] = Vec(bmax.x, bmax.y, bmax.z);
m_enclosingBox[7] = Vec(bmin.x, bmax.y, bmax.z);
m_pointStep = qMax(1, nverts/50000);
// QMessageBox::information(0, "", QString("%1 %2 %3\n%4 %5"). \
// arg(m_nX).arg(m_nY).arg(m_nZ). \
// arg(m_vertices.count()). \
// arg(m_triangles.count()/3));
m_fileName = flnm;
return true;
}
bool
MeshGenerator::loadPLY(QString flnm)
{
PlyProperty vert_props[] = { /* list of property information for a vertex */
{"x", Float32, Float32, offsetof(Vertex,x), 0, 0, 0, 0},
{"y", Float32, Float32, offsetof(Vertex,y), 0, 0, 0, 0},
{"z", Float32, Float32, offsetof(Vertex,z), 0, 0, 0, 0},
{"nx", Float32, Float32, offsetof(Vertex,nx), 0, 0, 0, 0},
{"ny", Float32, Float32, offsetof(Vertex,ny), 0, 0, 0, 0},
{"nz", Float32, Float32, offsetof(Vertex,nz), 0, 0, 0, 0},
{"red", Uint8, Uint8, offsetof(Vertex,r), 0, 0, 0, 0},
{"green", Uint8, Uint8, offsetof(Vertex,g), 0, 0, 0, 0},
{"blue", Uint8, Uint8, offsetof(Vertex,b), 0, 0, 0, 0},
};
PlyProperty face_props[] = { /* list of property information for a face */
{"vertex_indices", Int32, Int32, offsetof(Face,verts),
1, Uint8, Uint8, offsetof(Face,nverts)},
};
/*** the PLY object ***/
PlyOtherProp *vert_other,*face_other;
bool per_vertex_color = false;
bool has_normals = false;
int i,j;
int elem_count;
char *elem_name;
PlyFile *in_ply;
/*** Read in the original PLY object ***/
FILE *fp = fopen(flnm.toLatin1().data(), "rb");
in_ply = read_ply (fp);
for (i = 0; i < in_ply->num_elem_types; i++) {
/* prepare to read the i'th list of elements */
elem_name = setup_element_read_ply (in_ply, i, &elem_count);
if (equal_strings ("vertex", elem_name)) {
/* create a vertex list to hold all the vertices */
m_vlist = (Vertex **) malloc (sizeof (Vertex *) * elem_count);
m_nverts = elem_count;
/* set up for getting vertex elements */
setup_property_ply (in_ply, &vert_props[0]);
setup_property_ply (in_ply, &vert_props[1]);
setup_property_ply (in_ply, &vert_props[2]);
for (j = 0; j < in_ply->elems[i]->nprops; j++) {
PlyProperty *prop;
prop = in_ply->elems[i]->props[j];
if (equal_strings ("r", prop->name) ||
equal_strings ("red", prop->name)) {
setup_property_ply (in_ply, &vert_props[3]);
per_vertex_color = true;
}
if (equal_strings ("g", prop->name) ||
equal_strings ("green", prop->name)) {
setup_property_ply (in_ply, &vert_props[4]);
per_vertex_color = true;
}
if (equal_strings ("b", prop->name) ||
equal_strings ("blue", prop->name)) {
setup_property_ply (in_ply, &vert_props[5]);
per_vertex_color = true;
}
if (equal_strings ("nx", prop->name)) {
setup_property_ply (in_ply, &vert_props[6]);
has_normals = true;
}
if (equal_strings ("ny", prop->name)) {
setup_property_ply (in_ply, &vert_props[7]);
has_normals = true;
}
if (equal_strings ("nz", prop->name)) {
setup_property_ply (in_ply, &vert_props[8]);
has_normals = true;
}
}
/* grab all the vertex elements */
for (j = 0; j < elem_count; j++) {
m_vlist[j] = (Vertex *) malloc (sizeof (Vertex));
get_element_ply (in_ply, (void *) m_vlist[j]);
}
}
else if (equal_strings ("face", elem_name)) {
/* create a list to hold all the face elements */
m_flist = (Face **) malloc (sizeof (Face *) * elem_count);
m_nfaces = elem_count;
/* set up for getting face elements */
setup_property_ply (in_ply, &face_props[0]);
/* grab all the face elements */
for (j = 0; j < elem_count; j++) {
m_flist[j] = (Face *) malloc (sizeof (Face));
get_element_ply (in_ply, (void *) m_flist[j]);
}
}
else
get_other_element_ply (in_ply);
}
close_ply (in_ply);
free_ply (in_ply);
vcolor = new float[m_nverts*3];
for(int i=0; i<m_nverts; i++)
{
vcolor[3*i+0] = m_vlist[i]->r/255.0f;
vcolor[3*i+1] = m_vlist[i]->g/255.0f;
vcolor[3*i+2] = m_vlist[i]->b/255.0f;
}
QMessageBox::information(0, "", QString("Loaded input mesh : vertices %1 faces %2").\
arg(m_nverts).\
arg(m_nfaces));
return true;
}
read_file()
{
int i,j;
int elem_count;
char *elem_name;
/*** Read in the original PLY object ***/
in_ply = read_ply (stdin);
/* examine each element type that is in the file (vertex, face) */
for (i = 0; i < in_ply->num_elem_types; i++) {
/* prepare to read the i'th list of elements */
elem_name = setup_element_read_ply (in_ply, i, &elem_count);
if (equal_strings ("vertex", elem_name)) {
/* create a vertex list to hold all the vertices */
vlist = (Vertex **) malloc (sizeof (Vertex *) * elem_count);
nverts = elem_count;
/* set up for getting vertex elements */
/* (we want x,y,z) */
setup_property_ply (in_ply, &vert_props[0]);
setup_property_ply (in_ply, &vert_props[1]);
setup_property_ply (in_ply, &vert_props[2]);
/* we also want normal information if it is there (nx,ny,nz) */
for (j = 0; j < in_ply->elems[i]->nprops; j++) {
PlyProperty *prop;
prop = in_ply->elems[i]->props[j];
if (equal_strings ("nx", prop->name)) {
setup_property_ply (in_ply, &vert_props[3]);
has_nx = 1;
}
if (equal_strings ("ny", prop->name)) {
setup_property_ply (in_ply, &vert_props[4]);
has_ny = 1;
}
if (equal_strings ("nz", prop->name)) {
setup_property_ply (in_ply, &vert_props[5]);
has_nz = 1;
}
}
/* also grab anything else that we don't need to know about */
vert_other = get_other_properties_ply (in_ply,
offsetof(Vertex,other_props));
/* grab the vertex elements and store them in our list */
for (j = 0; j < elem_count; j++) {
vlist[j] = (Vertex *) malloc (sizeof (Vertex));
get_element_ply (in_ply, (void *) vlist[j]);
}
}
else if (equal_strings ("face", elem_name)) {
/* create a list to hold all the face elements */
flist = (Face **) malloc (sizeof (Face *) * elem_count);
nfaces = elem_count;
/* set up for getting face elements */
/* (all we need are vertex indices) */
setup_property_ply (in_ply, &face_props[0]);
face_other = get_other_properties_ply (in_ply,
offsetof(Face,other_props));
/* grab all the face elements and place them in our list */
for (j = 0; j < elem_count; j++) {
flist[j] = (Face *) malloc (sizeof (Face));
get_element_ply (in_ply, (void *) flist[j]);
}
}
else /* all non-vertex and non-face elements are grabbed here */
get_other_element_ply (in_ply);
}
/* close the file */
/* (we won't free up the memory for in_ply because we will use it */
/* to help describe the file that we will write out) */
close_ply (in_ply);
}
int CTriangleObj::_loadPLYFile(FILE *fp)
{
Vector3i*& m_pTriangle = (Vector3i*&)m_pPolygon;
int i, j, elem_count, nverts, nfaces;
char *elem_name, buff[200];
Vertex vlist;
Face flist;
PlyOtherProp *vert_other,*face_other;
PlyProperty vert_props[] = { /* list of property information for a vertex */
{"x", Float32, Float32, offsetof(Vertex,x), 0, 0, 0, 0},
{"y", Float32, Float32, offsetof(Vertex,y), 0, 0, 0, 0},
{"z", Float32, Float32, offsetof(Vertex,z), 0, 0, 0, 0},
{"nx", Float32, Float32, offsetof(Vertex,nx), 0, 0, 0, 0},
{"ny", Float32, Float32, offsetof(Vertex,ny), 0, 0, 0, 0},
{"nz", Float32, Float32, offsetof(Vertex,nz), 0, 0, 0, 0},
};
char *elem_names[] = { /* list of the kinds of elements in the user's object */
"vertex", "face"
};
PlyProperty face_props[] = { /* list of property information for a face */
{"vertex_indices", Int32, Int32, offsetof(Face,verts), 1, Uint8, Uint8, offsetof(Face,nverts)},
};
/*** Read in the original PLY object ***/
Free();
PlyFile *in_ply = read_ply (fp);
if (in_ply==NULL) return 0;
for (i = 0; i < in_ply->num_elem_types; i++){
/* prepare to read the i'th list of elements */
elem_name = setup_element_read_ply (in_ply, i, &elem_count);
if (equal_strings ("vertex", elem_name)){
/* create a vertex list to hold all the vertices */
m_nVertexCount = nverts = elem_count;
m_pVertex = new Vector3d [m_nVertexCount];
assert(m_pVertex!=NULL);
/* set up for getting vertex elements */
setup_property_ply (in_ply, &vert_props[0]);
setup_property_ply (in_ply, &vert_props[1]);
setup_property_ply (in_ply, &vert_props[2]);
vert_other = get_other_properties_ply (in_ply, offsetof(Vertex,other_props));
/* grab all the vertex elements */
for (j = 0; j < elem_count; j++) {
get_element_ply (in_ply, (void *) &vlist);
Vector3d *p = &m_pVertex[j];
p->x = vlist.x;
p->y = vlist.y;
p->z = vlist.z;
}
}
else if (equal_strings ("face", elem_name)) {
m_nPolygonCount = nfaces = elem_count;
/* create a list to hold all the face elements */
m_pTriangle = new Vector3i[m_nPolygonCount];
assert(m_pTriangle!=NULL);
/* set up for getting face elements */
setup_property_ply (in_ply, &face_props[0]);
face_other = get_other_properties_ply (in_ply, offsetof(Face,other_props));
/* grab all the face elements */
for (j = 0; j < elem_count; j++) {
get_element_ply (in_ply, (void *) &flist);
if (flist.nverts !=3){
sprintf(buff, "Found a face with %d vertices!\n", (int)flist.nverts);
puts(buff);
}
Vector3i *ptri = &m_pTriangle[j];
ptri->x = flist.verts[0];
ptri->y = flist.verts[2];
ptri->z = flist.verts[1];
}
}
else if (equal_strings ("tristrips", elem_name)) {
int *ibuff = _readTriangleStrip(fp, elem_count);
m_pTriangle=_parseStrip2Triangles(ibuff, elem_count, m_nPolygonCount);
delete [] ibuff;
}
else{
get_other_element_ply (in_ply);
}
}
close_ply (in_ply);
return 1;
}