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;
}
void write_file(const char* strName)
{
int i;
PlyFile *ply;
int num_elem_types;
/*** Write out the transformed PLY object ***/
FILE* pFile = fopen(strName,"w");
ply = write_ply (pFile, nelems, elem_names, PLY_ASCII);
/* describe what properties go into the vertex elements */
describe_element_ply (ply, "vertex", nverts);
describe_property_ply (ply, &vert_props[0]);
describe_property_ply (ply, &vert_props[1]);
describe_property_ply (ply, &vert_props[2]);
if (has_normals) {
describe_property_ply (ply, &vert_props[4]);
describe_property_ply (ply, &vert_props[5]);
describe_property_ply (ply, &vert_props[6]);
}
if (texture_coords) {
describe_property_ply (ply, &vert_props[7]);
describe_property_ply (ply, &vert_props[8]);
}
describe_element_ply (ply, "face", nfaces);
describe_property_ply (ply, &face_props[0]);
for (i = 0; i < ncomments; i++)
append_comment_ply (ply, comments[i]);
append_comment_ply (ply, "converted from OBJ by obj2ply");
header_complete_ply (ply);
/* set up and write the vertex elements */
put_element_setup_ply (ply, "vertex");
for (i = 0; i < nverts; i++)
put_element_ply (ply, &vVertex[i]);//(void *) &vlist[i]);
/* set up and write the face elements */
put_element_setup_ply (ply, "face");
for (i = 0; i < nfaces; i++){
int idx[3];
memcpy(idx,&vIndex[i*3],sizeof(int)*3);
Face f;
f.nverts = 3;
f.verts = idx;
put_element_ply (ply, (void *)&f);// &flist[i]);
}
close_ply (ply);
free_ply (ply);
fclose(pFile);
}
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);
}
write_file()
{
int i;
PlyFile *ply;
char **elist;
int num_elem_types;
/*** Write out the transformed PLY object ***/
elist = get_element_list_ply (in_ply, &num_elem_types);
ply = write_ply (stdout, num_elem_types, elist, in_ply->file_type);
/* describe what properties go into the vertex elements */
describe_element_ply (ply, "vertex", nverts);
describe_property_ply (ply, &vert_props[0]);
describe_property_ply (ply, &vert_props[1]);
describe_property_ply (ply, &vert_props[2]);
describe_other_properties_ply (ply, vert_other, offsetof(Vertex,other_props));
describe_other_elements_ply (ply, in_ply->other_elems);
copy_comments_ply (ply, in_ply);
append_comment_ply (ply, "modified by xformply");
copy_obj_info_ply (ply, in_ply);
header_complete_ply (ply);
/* set up and write the vertex elements */
put_element_setup_ply (ply, "vertex");
for (i = 0; i < nverts; i++)
put_element_ply (ply, (void *) vlist[i]);
put_other_elements_ply (ply);
close_ply (ply);
free_ply (ply);
}
write_file()
{
int i;
PlyFile *ply;
int num_elem_types;
/*** Write out the transformed PLY object ***/
ply = write_ply (stdout, nelems, elem_names, PLY_ASCII);
/* describe what properties go into the vertex elements */
describe_element_ply (ply, "vertex", nverts);
describe_property_ply (ply, &vert_props[0]);
describe_property_ply (ply, &vert_props[1]);
describe_property_ply (ply, &vert_props[2]);
describe_element_ply (ply, "face", nfaces);
describe_property_ply (ply, &face_props[0]);
append_comment_ply (ply, "created by platoply");
header_complete_ply (ply);
/* set up and write the vertex elements */
put_element_setup_ply (ply, "vertex");
for (i = 0; i < nverts; i++)
put_element_ply (ply, (void *) &vlist[i]);
/* set up and write the face elements */
put_element_setup_ply (ply, "face");
for (i = 0; i < nfaces; i++)
put_element_ply (ply, (void *) &flist[i]);
close_ply (ply);
free_ply (ply);
}
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);
}
void write_file ( void )
/******************************************************************************/
/*
Purpose:
WRITE_FILE writes the PLY file to the standard output unit.
Modified:
17 January 2011
Author:
Greg Turk
*/
{
int i;
int num_elem_types;
PlyFile *ply;
/*
Write out the transformed PLY object.
*/
ply = write_ply (stdout, nelems, elem_names, PLY_ASCII);
/*
Describe what properties go into the vertex elements.
*/
describe_element_ply (ply, "vertex", nverts);
describe_property_ply (ply, &vert_props[0]);
describe_property_ply (ply, &vert_props[1]);
describe_property_ply (ply, &vert_props[2]);
if ( has_normals )
{
describe_property_ply (ply, &vert_props[3]);
describe_property_ply (ply, &vert_props[4]);
describe_property_ply (ply, &vert_props[5]);
}
if (texture_coords)
{
describe_property_ply (ply, &vert_props[6]);
describe_property_ply (ply, &vert_props[7]);
}
describe_element_ply (ply, "face", nfaces);
describe_property_ply (ply, &face_props[0]);
/*
Insert the comments.
*/
for (i = 0; i < ncomments; i++)
{
append_comment_ply (ply, comments[i]);
}
append_comment_ply (ply, "converted from OBJ by obj2ply");
header_complete_ply (ply);
/*
Set up and write the vertex elements.
*/
put_element_setup_ply (ply, "vertex");
for (i = 0; i < nverts; i++)
{
put_element_ply (ply, (void *) &vlist[i]);
}
/*
Set up and write the face elements.
*/
put_element_setup_ply (ply, "face");
for (i = 0; i < nfaces; i++)
{
put_element_ply (ply, (void *) &flist[i]);
}
close_ply ( ply );
free_ply ( ply );
return;
}
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);
}
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;
}
void
TrisetObject::save()
{
bool has_normals = (m_normals.count() > 0);
bool per_vertex_color = (m_vcolor.count() > 0);
QString flnm = QFileDialog::getSaveFileName(0,
"Export mesh to file",
Global::previousDirectory(),
"*.ply");
if (flnm.size() == 0)
return;
typedef struct PlyFace
{
unsigned char nverts; /* number of Vertex indices in list */
int *verts; /* Vertex index list */
} PlyFace;
typedef struct
{
float x, y, z; /**< Vertex coordinates */
float nx, ny, nz; /**< Vertex normal */
uchar r, g, b;
} myVertex ;
PlyProperty vert_props[] = { /* list of property information for a PlyVertex */
{"x", Float32, Float32, offsetof( myVertex,x ), 0, 0, 0, 0},
{"y", Float32, Float32, offsetof( myVertex,y ), 0, 0, 0, 0},
{"z", Float32, Float32, offsetof( myVertex,z ), 0, 0, 0, 0},
{"nx", Float32, Float32, offsetof( myVertex,nx ), 0, 0, 0, 0},
{"ny", Float32, Float32, offsetof( myVertex,ny ), 0, 0, 0, 0},
{"nz", Float32, Float32, offsetof( myVertex,nz ), 0, 0, 0, 0},
{"red", Uint8, Uint8, offsetof( myVertex,r ), 0, 0, 0, 0},
{"green", Uint8, Uint8, offsetof( myVertex,g ), 0, 0, 0, 0},
{"blue", Uint8, Uint8, offsetof( myVertex,b ), 0, 0, 0, 0}
};
PlyProperty face_props[] = { /* list of property information for a PlyFace */
{"vertex_indices", Int32, Int32, offsetof( PlyFace,verts ),
1, Uint8, Uint8, offsetof( PlyFace,nverts )},
};
PlyFile *ply;
FILE *fp = fopen(flnm.toAscii().data(),
bin ? "wb" : "w");
PlyFace face ;
int verts[3] ;
char *elem_names[] = { "vertex", "face" };
ply = write_ply (fp,
2,
elem_names,
bin? PLY_BINARY_LE : PLY_ASCII );
int nvertices = m_vertices.count();
/* describe what properties go into the PlyVertex elements */
describe_element_ply ( ply, "vertex", nvertices );
describe_property_ply ( ply, &vert_props[0] );
describe_property_ply ( ply, &vert_props[1] );
describe_property_ply ( ply, &vert_props[2] );
describe_property_ply ( ply, &vert_props[3] );
describe_property_ply ( ply, &vert_props[4] );
describe_property_ply ( ply, &vert_props[5] );
describe_property_ply ( ply, &vert_props[6] );
describe_property_ply ( ply, &vert_props[7] );
describe_property_ply ( ply, &vert_props[8] );
/* describe PlyFace properties (just list of PlyVertex indices) */
int ntriangles = m_triangles.count()/3;
describe_element_ply ( ply, "face", ntriangles );
describe_property_ply ( ply, &face_props[0] );
header_complete_ply ( ply );
/* set up and write the PlyVertex elements */
put_element_setup_ply ( ply, "vertex" );
for(int i=0; i<m_vertices.count(); i++)
{
myVertex vertex;
vertex.x = m_vertices[i].x*m_scale.x;
vertex.y = m_vertices[i].y*m_scale.y;
vertex.z = m_vertices[i].z*m_scale.z;
if (has_normals)
{
vertex.nx = m_normals[i].x;
vertex.ny = m_normals[i].y;
vertex.nz = m_normals[i].z;
}
if (per_vertex_color)
{
vertex.r = 255*m_vcolor[i].x;
vertex.g = 255*m_vcolor[i].y;
vertex.b = 255*m_vcolor[i].z;
}
put_element_ply ( ply, ( void * ) &vertex );
}
put_element_setup_ply ( ply, "face" );
face.nverts = 3 ;
face.verts = verts ;
for(int i=0; i<m_triangles.count()/3; i++)
{
int v0 = m_triangles[3*i];
int v1 = m_triangles[3*i+1];
int v2 = m_triangles[3*i+2];
face.verts[0] = v0;
face.verts[1] = v1;
face.verts[2] = v2;
put_element_ply ( ply, ( void * ) &face );
}
close_ply ( ply );
free_ply ( ply );
fclose( fp ) ;
QMessageBox::information(0, "Save Mesh", "done");
}
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;
}
void
MeshGenerator::savePLY(QString flnm)
{
m_meshLog->moveCursor(QTextCursor::End);
m_meshLog->insertPlainText("Saving Mesh");
PlyProperty vert_props[] = { /* list of property information for a PlyVertex */
{"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 PlyFace */
{"vertex_indices", Int32, Int32, offsetof( Face,verts ),
1, Uint8, Uint8, offsetof( Face,nverts )},
};
PlyFile *ply;
FILE *fp = fopen(flnm.toLatin1().data(), "wb");
Face face ;
int verts[3] ;
char *elem_names[] = { "vertex", "face" };
ply = write_ply (fp,
2,
elem_names,
PLY_BINARY_LE );
/* describe what properties go into the PlyVertex elements */
describe_element_ply ( ply, "vertex", m_nverts );
describe_property_ply ( ply, &vert_props[0] );
describe_property_ply ( ply, &vert_props[1] );
describe_property_ply ( ply, &vert_props[2] );
describe_property_ply ( ply, &vert_props[3] );
describe_property_ply ( ply, &vert_props[4] );
describe_property_ply ( ply, &vert_props[5] );
describe_property_ply ( ply, &vert_props[6] );
describe_property_ply ( ply, &vert_props[7] );
describe_property_ply ( ply, &vert_props[8] );
/* describe PlyFace properties (just list of PlyVertex indices) */
describe_element_ply ( ply, "face", m_nfaces );
describe_property_ply ( ply, &face_props[0] );
header_complete_ply ( ply );
/* set up and write the PlyVertex elements */
put_element_setup_ply ( ply, "vertex" );
for(int ni=0; ni<m_nverts; ni++)
put_element_ply ( ply, ( void * ) m_vlist[ni] );
/* set up and write the PlyFace elements */
put_element_setup_ply ( ply, "face" );
for(int ni=0; ni<m_nfaces; ni++)
put_element_ply ( ply, ( void * ) m_flist[ni] );
close_ply ( ply );
free_ply ( ply );
m_meshProgress->setValue(100);
}
write_file()
{
int i;
PlyFile *ply;
char **elist;
int num_elem_types;
/*** Write out the transformed PLY object ***/
elist = get_element_list_ply (in_ply, &num_elem_types);
ply = write_ply (stdout, num_elem_types, elist, in_ply->file_type);
/* describe what properties go into the vertex elements */
/* (position x,y,z and normals nx,ny,nz if they were provided) */
describe_element_ply (ply, "vertex", nverts);
describe_property_ply (ply, &vert_props[0]);
describe_property_ply (ply, &vert_props[1]);
describe_property_ply (ply, &vert_props[2]);
if (has_nx) describe_property_ply (ply, &vert_props[3]);
if (has_ny) describe_property_ply (ply, &vert_props[4]);
if (has_nz) describe_property_ply (ply, &vert_props[5]);
/* all other vertex properties besides position and normal */
describe_other_properties_ply (ply, vert_other, offsetof(Vertex,other_props));
/* describe face properties (just list of vertex indices) */
describe_element_ply (ply, "face", nfaces);
describe_property_ply (ply, &face_props[0]);
describe_other_properties_ply (ply, face_other, offsetof(Face,other_props));
/* all other properties that we tucked away are mentioned here */
describe_other_elements_ply (ply, in_ply->other_elems);
/* copy the comments and other textual object information */
copy_comments_ply (ply, in_ply);
append_comment_ply (ply, "modified by flipply");
copy_obj_info_ply (ply, in_ply);
/* we've told the routines enough information so that the file header */
/* can be written out now */
header_complete_ply (ply);
/* set up and write the vertex elements */
put_element_setup_ply (ply, "vertex");
for (i = 0; i < nverts; i++)
put_element_ply (ply, (void *) vlist[i]);
/* set up and write the face elements */
put_element_setup_ply (ply, "face");
for (i = 0; i < nfaces; i++)
put_element_ply (ply, (void *) flist[i]);
/* the other properties that we tucked away are written out here */
put_other_elements_ply (ply);
/* close the file and free up the memory */
close_ply (ply);
free_ply (ply);
}
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;
}
PLYLoader::PLYLoader(FILE *fp) {
#ifdef DEBUG
std::cout << "Loading PLY from disk..." << std::endl;
#endif /* DEBUG */
int i, j;
int elem_count;
char *elem_name;
/*** Read in the original PLY object ***/
PlyFile *in_ply = ::read_ply(fp);
if (vertexData) {
delete vertexData;
vertexData = NULL;
}
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 */
vertexData = new vec3[elem_count];//(vec3 *) malloc (sizeof (vec3 *) * elem_count);
vertCount = 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 *) &(vertexData[j]));
}
} else if (equal_strings("face", elem_name)) {
/* create a list to hold all the face elements */
face_t *flist = new face_t[elem_count];
int *triangles = new int[elem_count * 3];
triCount = 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]));
if (flist[j].vertCount == 2) {
triangles[j * 3] = flist[j].vertIdx[0];
triangles[j * 3 + 1] = flist[j].vertIdx[1];
triangles[j * 3 + 2] = flist[j].vertIdx[2];
}
}
delete flist;
this->triangles = triangles;
} else
get_other_element_ply(in_ply);
}
close_ply(in_ply);
#ifdef DEBUG
std::cout << "Loaded: " << vertCount << " vertices, " << triCount << " faces." << std::endl;
#endif /* DEBUG */
}
