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plyRead.cpp
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#include <kvs/PolygonImporter>
#include "plyRead.h"
#include <fstream>
#include <cstring>
const int BUF_SIZE = 512;
plyRead::plyRead( void): m_filename( NULL ) {
hasFace = false; hasColor = false; hasAlpha = false;
hasNormal = false; isAscii= false;
}
plyRead::plyRead( char* filename, bool &hface ): m_filename( filename ) {
//-- Initializing Flags
hasFace = false; hasColor = false; hasAlpha = false;
hasNormal = false; isAscii= false;
//--- Check File Type and Header
checkHasFace( );
//---- Reading Data
if( hasFace ) { //-- With KVS Importer
// std::cout << "Using KVS Importer " << std::endl;
kvs::PolygonObject *polygon = new kvs::PolygonImporter( m_filename );
SuperClass::setCoords( polygon->coords() );
SuperClass::setColors( polygon->colors() );
SuperClass::setNormals( polygon->normals() );
SuperClass::setConnections( polygon->connections() );
SuperClass::setOpacities( polygon->opacities() );
SuperClass::setPolygonType( polygon->polygonType() );
SuperClass::setColorType( polygon->colorType() );
SuperClass::setNormalType( polygon->normalType() );
SuperClass::setMinMaxObjectCoords( polygon->minObjectCoord(), polygon->maxObjectCoord() );
SuperClass::setMinMaxExternalCoords( polygon->minExternalCoord(), polygon->maxExternalCoord() );
delete polygon;
} else { //--- Without KVS Importer
if( isAscii )
execReadAscii( filename );
else
execReadBinary( filename );
}
hface = hasFace;
}
void plyRead::checkHasFace( void ) {
std::ifstream fin( m_filename );
if( !fin ) {
std::cerr << "ERROR: Cannot Open ;" << m_filename << std::endl;
exit(1);
}
char buf[BUF_SIZE];
fin.getline( buf, BUF_SIZE, '\n' );
if( strncmp( buf, "ply", 3 ) != 0 ) {
std::cerr << "ERROR: " << m_filename <<" is not PLY Format "<< std::endl;
exit(1);
}
char words[ 20 ][BUF_SIZE];
char *p;
int numT;
int ifElem = 0, numData = 0, numNom = 0, numCol = 0;
while( fin.getline( buf, BUF_SIZE, '\n' ) ) {
numT = 0;
p = buf;
//--- Devide Token
while( (p=strtok(p, " \t") ) !=NULL ) {
strcpy( words[numT], p );
numT++;
p = NULL;
}
//--- is ASCii
if( !strncmp( words[0], "format", 6 ) )
if( !strncmp( words[1], "ascii", 5 ) ) isAscii = true;
//--- Number of Vertices and Faces
if( !strncmp( words[0], "element", 7 ) ) {
if( !strncmp( words[1], "vertex", 6 ) )
numVert = atoi( words[2] );
else if( !strncmp( words[1], "face", 4 ) ) {
numFace = atoi( words[2] );
ifElem = 1;
if( numFace != 0 ) hasFace = true;
}
}
//--- Check Property
if( !strncmp( words[0], "property", 8 ) && ( ifElem == 0 ) ) {
numData++;
if( !strncmp( words[2], "nx", 2 ) ) {
numNom = numData -1;
hasNormal = true;
} else if( !strncmp( words[2], "red", 3 ) ) {
numCol = numData -1;
hasColor = true;
} else if ( !strncmp( words[2], "alpha", 5 ) )
hasAlpha = true;
}
//--- End Header
if( !strncmp( words[0], "end_header", 10 ) ){
break;
}
}
}
void plyRead::execReadAscii( char* filename)
{
std::cout << "ASCII Data " << std::endl;
std::ifstream fin( m_filename );
if( !fin ) {
std::cerr << "ERROR: Cannot Open ;" << m_filename << std::endl;
exit(1);
}
//--- Skip Header
char buf[BUF_SIZE];
while( fin.getline( buf, BUF_SIZE, '\n' ) )
if( !strncmp( buf, "end_header", 10 ) ){
break;
}
std::vector<kvs::Real32> coords;
std::vector<kvs::Real32> normals;
std::vector<kvs::UInt8> colors;
float p[3];
float np[3];
unsigned char c[3];
int slide = 0;
char words[ 20 ][BUF_SIZE];
char *ps;
int numT;
kvs::Vector3f minCoord( 1.0e6, 1.0e6, 1.0e6 );
kvs::Vector3f maxCoord( -1.0e6, -1.0e6, -1.0e6 );
//--- Reading Data
while( fin.getline( buf, BUF_SIZE, '\n' ) ) {
numT = 0;
ps = buf;
//--- Devide Token
while( (ps=strtok(ps, " \t") ) !=NULL ) {
strcpy( words[numT], ps );
numT++;
ps = NULL;
}
p[0] = atof( words[0] );
p[1] = atof( words[1] );
p[2] = atof( words[2] );
coords.push_back( p[0] );
coords.push_back( p[1] );
coords.push_back( p[2] );
if( minCoord.x() > p[0] ) minCoord[0] = p[0];
if( minCoord.y() > p[1] ) minCoord[1] = p[1];
if( minCoord.z() > p[2] ) minCoord[2] = p[2];
if( maxCoord.x() < p[0] ) maxCoord[0] = p[0];
if( maxCoord.y() < p[1] ) maxCoord[1] = p[1];
if( maxCoord.z() < p[2] ) maxCoord[2] = p[2];
if( hasNormal ) {
np[0] = atof( words[3] );
np[1] = atof( words[4] );
np[2] = atof( words[5] );
normals.push_back( np[0] );
normals.push_back( np[1] );
normals.push_back( np[2] );
slide = 3;
}
if( hasColor ) {
c[0] = static_cast<unsigned char>( atoi( words[ slide + 3 ] ) );
c[1] = static_cast<unsigned char>( atoi( words[ slide + 4 ] ) );
c[2] = static_cast<unsigned char>( atoi( words[ slide + 5 ] ) );
colors.push_back( c[0] );
colors.push_back( c[1] );
colors.push_back( c[2] );
}
}
// std::cout << "min: " << minCoord << " max: " << maxCoord <<std::endl;
SuperClass::setCoords( kvs::ValueArray<kvs::Real32>( coords ));
SuperClass::setColors( kvs::ValueArray<kvs::UInt8>( colors ) );
SuperClass::setNormals( kvs::ValueArray<kvs::Real32>(normals ) );
SuperClass::setMinMaxObjectCoords( minCoord, maxCoord );
}
void plyRead::execReadBinary( char* filename) {
std::ifstream fin( m_filename );
if( !fin ) {
std::cerr << "ERROR: Cannot Open ;" << m_filename << std::endl;
exit(1);
}
//--- Skip Header
char buf[BUF_SIZE];
while( fin.getline( buf, BUF_SIZE, '\n' ) )
if( !strncmp( buf, "end_header", 10 ) ){
break;
}
std::vector<kvs::Real32> coords;
std::vector<kvs::Real32> normals;
std::vector<kvs::UInt8> colors;
float p[3];
float np[3];
unsigned char c[3];
unsigned char al;
kvs::Vector3f minCoord( 1.0e6, 1.0e6, 1.0e6 );
kvs::Vector3f maxCoord( -1.0e6, -1.0e6, -1.0e6 );
for(int i=0; i<numVert; ++i ) {
fin.read( (char*) p, sizeof(float)*3 );
coords.push_back( p[0] );
coords.push_back( p[1] );
coords.push_back( p[2] );
if( minCoord.x() > p[0] ) minCoord[0] = p[0];
if( minCoord.y() > p[1] ) minCoord[1] = p[1];
if( minCoord.z() > p[2] ) minCoord[2] = p[2];
if( maxCoord.x() < p[0] ) maxCoord[0] = p[0];
if( maxCoord.y() < p[1] ) maxCoord[1] = p[1];
if( maxCoord.z() < p[2] ) maxCoord[2] = p[2];
//---- Normal
if( hasNormal ) {
fin.read( (char*)np, sizeof(float)*3 );
normals.push_back( np[0] );
normals.push_back( np[1] );
normals.push_back( np[2] );
std::cout << np[0] << std::endl;
}
//---- Color
if( hasColor ) {
fin.read( (char*)c, sizeof(unsigned char)*3 );
colors.push_back( c[0] );
colors.push_back( c[1] );
colors.push_back( c[2] );
}
if( hasAlpha )
fin.read( (char*)&al, sizeof(unsigned char) );
}
SuperClass::setCoords( kvs::ValueArray<kvs::Real32>( coords ));
SuperClass::setColors( kvs::ValueArray<kvs::UInt8>( colors ) );
SuperClass::setNormals( kvs::ValueArray<kvs::Real32>(normals ) );
SuperClass::setMinMaxObjectCoords( minCoord, maxCoord );
}