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Removed vrml plugin from build as OpenVRML plugin relies on no longer supported functionality

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This commit is contained in:
Robert Osfield 2019-07-18 11:14:10 +01:00
parent 730e6ad8f5
commit 587fd6a022
9 changed files with 0 additions and 3613 deletions
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49
src/osgPlugins/vrml/CMakeLists.txt
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INCLUDE_DIRECTORIES(${OPENVRML_INCLUDE_DIR})
INCLUDE_DIRECTORIES(${OPENVRML_INCLUDE_DIR}/openvrml)
IF (WIN32)
INCLUDE_DIRECTORIES(${JPEG_INCLUDE_DIR})
INCLUDE_DIRECTORIES(${PNG_INCLUDE_DIR})
INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})
FIND_LIBRARY(OPENVRML_ANTLR_LIBRARY
NAMES antlr.lib
PATHS $ENV{OPENVRML_DIR}/lib)
FIND_LIBRARY(OPENVRML_ANTLR_LIBRARY_DEBUG
NAMES antlrd.lib
PATHS $ENV{OPENVRML_DIR}/lib)
FIND_LIBRARY(OPENVRML_REGEX_LIBRARY
NAMES regex.lib
PATHS $ENV{OPENVRML_DIR}/lib)
FIND_LIBRARY(OPENVRML_REGEX_LIBRARY_DEBUG
NAMES regexd.lib
PATHS $ENV{OPENVRML_DIR}/lib)
SET(TARGET_LIBRARIES_VARS
OPENVRML_ANTLR_LIBRARY
OPENVRML_REGEX_LIBRARY
OPENVRML_LIBRARY
JPEG_LIBRARY
PNG_LIBRARY
ZLIB_LIBRARIES)
SET(TARGET_EXTERNAL_LIBRARIES
ws2_32.lib)
ELSE()
SET(TARGET_LIBRARIES_VARS
OPENVRML_LIBRARY)
ENDIF()
SET(TARGET_SRC
IndexedFaceSet.cpp
Primitives.cpp
ReaderWriterVRML2.cpp
ConvertToVRML.cpp
)
SET(TARGET_H
ReaderWriterVRML2.h
ConvertToVRML.h
)
#### end var setup ###
SETUP_PLUGIN(vrml vrml)

1295
src/osgPlugins/vrml/ConvertToVRML.cpp
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115
src/osgPlugins/vrml/ConvertToVRML.h
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/*
*
* OSG to VRML2 converter for OpenSceneGraph.
*
* authors :
* Johan Nouvel (johan_nouvel@yahoo.com)
*
*
*/
#ifndef __convert_to_vrml_to_osg_
#define __convert_to_vrml_to_osg_ 1
#include <fstream>
#include <sstream>
// OSG headers
#include <osg/MatrixTransform>
#include <osg/PositionAttitudeTransform>
#include <osg/Geode>
#include <osg/Billboard>
#include <osg/Notify>
#include <osg/LineWidth>
#include <osg/Point>
#include <osg/TexEnv>
#include <osg/TexGen>
#include <osg/Texture2D>
#include <osg/PolygonMode>
#include <osg/BlendFunc>
#include <osg/Material>
#include <osg/CullFace>
#include <osg/LightModel>
#include <osg/LOD>
#include <osgUtil/TransformCallback>
#include <osg/Object>
#include <osgDB/ReaderWriter>
#include <osg/NodeVisitor>
#include <string>
#include <stack>
#include <osg/Node>
#include <vector>
#include <map>
#include <stack>
using namespace std;
/**
* This function is called to write an osg graph into a VRML file
*
*/
osgDB::ReaderWriter::WriteResult convertToVRML(const osg::Node& root, const std::string& filename, const osgDB::ReaderWriter::Options* options=NULL) ;
class ToVRML: public osg::NodeVisitor {
public:
typedef enum {
NO_TEXTURE = 0, KEEP_ORIGINAL_TEXTURE = 1, COPY_TEXTURE = 2, CONVERT_TEXTURE = 3
} TextureMode;
ToVRML(const std::string& fileName, const osgDB::ReaderWriter::Options* options);
virtual ~ToVRML();
osgDB::ReaderWriter::WriteResult result() {
return (_res);
}
;
virtual void apply(osg::Geode& node);
virtual void apply(osg::Group& node);
virtual void apply(osg::Billboard& node);
virtual void apply(osg::MatrixTransform& node);
virtual void apply(osg::PositionAttitudeTransform& node);
virtual void apply(osg::Node& node);
virtual void apply(osg::LOD& node);
char *indent();
char *indentM();
char *indentL();
void pushStateSetStack(osg::StateSet* ss);
void popStateSetStack();
osg::StateSet* getCurrentStateSet();
//void findObjectName(osg::Object* obj,std::string& name, bool& alreadyLoaded);
void findMaterialName(osg::Material* mat, std::string& name, bool& alreadyLoaded);
void findTextureName(osg::Texture2D* tex, std::string& name, bool& alreadyLoaded);
void apply(osg::Geometry* geom);
void apply(osg::Drawable* drawable);
void writeAppearance(osg::StateSet* stateset);
void writeCoord(osg::Vec3Array* array);
template<typename T> void writeCoordIndex(GLenum mode, T* indices, unsigned int number, std::vector<int>& primitiveSetFaces, int& primitiveFaces);
void writeTexCoord(osg::Vec2Array* array, osg::Vec3Array* array2);
osg::Vec2Array* buildUVArray(osg::TexGen* tGen, osg::Vec3Array* array);
osg::Vec2Array* buildUVArray(osg::TexEnv* tEnv, osg::Vec3Array* array);
void writeUVArray(osg::Vec2Array* uvArray, osg::Texture::WrapMode wrap_s, osg::Texture::WrapMode wrap_t);
void writeNormal(osg::Geometry* geom, std::vector<int>& primitiveSetFaces, int nbFaces);
void writeColor(osg::Geometry* geom, std::vector<int>& primitiveSetFaces, int nbFaces);
osgDB::ReaderWriter::WriteResult _res;
ofstream _fout;
int _indent;
char* _strIndent;
map<osg::ref_ptr<osg::Texture2D>, std::string> _texMap;
map<osg::ref_ptr<osg::Material>, std::string> _matMap;
vector<osg::ref_ptr<osg::StateSet> > _stack;
osg::ref_ptr<osg::Image> _defaultImage;
std::string _pathToOutput;
std::string _pathRelativeToOutput;
TextureMode _textureMode;
int _txtUnit;
};
#endif

328
src/osgPlugins/vrml/IndexedFaceSet.cpp
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// -*-c++-*-
#include "ReaderWriterVRML2.h"
#if defined(_MSC_VER)
# pragma warning(disable: 4250)
# pragma warning(disable: 4290)
# pragma warning(disable: 4800)
#endif
#include <openvrml/node.h>
#include <osg/CullFace>
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97IndexedFaceSet(openvrml::node *vrml_ifs) const
{
osg::ref_ptr<deprecated_osg::Geometry> osg_geom = new deprecated_osg::Geometry();
osg_geom->addPrimitiveSet(new osg::DrawArrayLengths(osg::PrimitiveSet::POLYGON));
// get array of vertex coordinate_nodes
if(vrml_ifs->type().id() == "IndexedFaceSet")
{
std::auto_ptr<openvrml::field_value> fv = vrml_ifs->field("coord");
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::coordinate_node *vrml_coord_node = dynamic_cast<openvrml::coordinate_node *>((sfn->value()).get());
const std::vector<openvrml::vec3f> &vrml_coord = vrml_coord_node->point();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
unsigned i;
for (i = 0; i < vrml_coord.size(); i++)
{
openvrml::vec3f vec = vrml_coord[i];
osg_vertices->push_back(osg::Vec3(vec[0], vec[1], vec[2]));
}
osg_geom->setVertexArray(osg_vertices.get());
// get array of vertex indices
std::auto_ptr<openvrml::field_value> fv2 = vrml_ifs->field("coordIndex");
const openvrml::mfint32 *vrml_coord_index = dynamic_cast<const openvrml::mfint32 *>(fv2.get());
osg::ref_ptr<osg::IntArray> osg_vert_index = new osg::IntArray();
int num_vert = 0;
for (i = 0; i < vrml_coord_index->value().size(); i++)
{
int index = vrml_coord_index->value()[i];
if (index == -1)
{
static_cast<osg::DrawArrayLengths*>(osg_geom->getPrimitiveSet(0))->push_back(num_vert);
num_vert = 0;
}
else
{
osg_vert_index->push_back(index);
++num_vert;
}
}
if (num_vert)
{
//GvdB: Last coordIndex wasn't -1
static_cast<osg::DrawArrayLengths*>(osg_geom->getPrimitiveSet(0))->push_back(num_vert);
}
osg_geom->setVertexIndices(osg_vert_index.get());
}
{
// get texture coordinate_nodes
std::auto_ptr<openvrml::field_value> fv = vrml_ifs->field("texCoord");
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::texture_coordinate_node *vrml_tex_coord_node = dynamic_cast<openvrml::texture_coordinate_node *>(sfn->value().get());
if (vrml_tex_coord_node != 0) // if no texture, node is NULL pointer
{
const std::vector<openvrml::vec2f> &vrml_tex_coord = vrml_tex_coord_node->point();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
unsigned i;
for (i = 0; i < vrml_tex_coord.size(); i++)
{
openvrml::vec2f vec = vrml_tex_coord[i];
osg_texcoords->push_back(osg::Vec2(vec[0], vec[1]));
}
osg_geom->setTexCoordArray(0, osg_texcoords.get());
// get array of texture indices
std::auto_ptr<openvrml::field_value> fv2 = vrml_ifs->field("texCoordIndex");
const openvrml::mfint32 *vrml_tex_coord_index = dynamic_cast<const openvrml::mfint32 *>(fv2.get());
osg::ref_ptr<osg::IntArray> osg_tex_coord_index = new osg::IntArray();
if(vrml_tex_coord_index->value().size() > 0)
{
for (i = 0; i < vrml_tex_coord_index->value().size(); i++)
{
int index = vrml_tex_coord_index->value()[i];
if (index != -1) {
osg_tex_coord_index->push_back(index);
}
}
osg_geom->setTexCoordIndices(0, osg_tex_coord_index.get());
} else
// no indices defined, use coordIndex
osg_geom->setTexCoordIndices(0, const_cast<osg::IndexArray*>(osg_geom->getVertexIndices()));
}
}
// get array of normals per vertex (if specified)
{
std::auto_ptr<openvrml::field_value> fv = vrml_ifs->field("normal");
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::normal_node *vrml_normal_node = dynamic_cast<openvrml::normal_node *>(sfn->value().get());
if (vrml_normal_node != 0) // if no normals, node is NULL pointer
{
const std::vector<openvrml::vec3f>& vrml_normal_coord = vrml_normal_node->vector();
osg::ref_ptr<osg::Vec3Array> osg_normalcoords = new osg::Vec3Array();
unsigned i;
for (i = 0; i < vrml_normal_coord.size(); i++)
{
const openvrml::vec3f vec = vrml_normal_coord[i];
osg_normalcoords->push_back(osg::Vec3(vec[0], vec[1], vec[2]));
}
osg_geom->setNormalArray(osg_normalcoords.get());
// get array of normal indices
std::auto_ptr<openvrml::field_value> fv2 = vrml_ifs->field("normalIndex");
const openvrml::mfint32 *vrml_normal_index = dynamic_cast<const openvrml::mfint32 *>(fv2.get());
osg::ref_ptr<osg::IntArray> osg_normal_index = new osg::IntArray();
if (vrml_normal_index->value().size() > 0)
{
for (i = 0; i < vrml_normal_index->value().size(); i++)
{
int index = vrml_normal_index->value()[i];
if (index != -1)
{
osg_normal_index->push_back(index);
}
}
osg_geom->setNormalIndices(osg_normal_index.get());
}
else
// unspecified, use the coordIndex field
osg_geom->setNormalIndices(const_cast<osg::IndexArray*>(osg_geom->getVertexIndices()));
// get normal binding
std::auto_ptr<openvrml::field_value> fv3 = vrml_ifs->field("normalPerVertex");
const openvrml::sfbool *vrml_norm_per_vertex = dynamic_cast<const openvrml::sfbool *>(fv3.get());
if (vrml_norm_per_vertex->value())
{
osg_geom->setNormalBinding(deprecated_osg::Geometry::BIND_PER_VERTEX);
} else
{
osg_geom->setNormalBinding(deprecated_osg::Geometry::BIND_PER_PRIMITIVE);
}
}
}
// get array of colours per vertex (if specified)
{
std::auto_ptr<openvrml::field_value> fv = vrml_ifs->field("color");
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::color_node *vrml_color_node = dynamic_cast<openvrml::color_node *>(sfn->value().get());
if (vrml_color_node != 0) // if no colors, node is NULL pointer
{
const std::vector<openvrml::color> &vrml_colors = vrml_color_node->color();
osg::ref_ptr<osg::Vec3Array> osg_colors = new osg::Vec3Array();
unsigned i;
for (i = 0; i < vrml_colors.size(); i++)
{
const openvrml::color color = vrml_colors[i];
osg_colors->push_back(osg::Vec3(color.r(), color.g(), color.b()));
}
osg_geom->setColorArray(osg_colors.get());
// get array of color indices
std::auto_ptr<openvrml::field_value> fv2 = vrml_ifs->field("colorIndex");
const openvrml::mfint32 *vrml_color_index = dynamic_cast<const openvrml::mfint32 *>(fv2.get());
osg::ref_ptr<osg::IntArray> osg_color_index = new osg::IntArray();
if(vrml_color_index->value().size() > 0)
{
for (i = 0; i < vrml_color_index->value().size(); i++)
{
int index = vrml_color_index->value()[i];
if (index != -1) {
osg_color_index->push_back(index);
}
}
osg_geom->setColorIndices(osg_color_index.get());
} else
// unspecified, use coordIndices field
osg_geom->setColorIndices(const_cast<osg::IndexArray*>(osg_geom->getVertexIndices()));
// get color binding
std::auto_ptr<openvrml::field_value> fv3 = vrml_ifs->field("colorPerVertex");
const openvrml::sfbool *vrml_color_per_vertex = dynamic_cast<const openvrml::sfbool *>(fv3.get());
if (vrml_color_per_vertex->value())
{
osg_geom->setColorBinding(deprecated_osg::Geometry::BIND_PER_VERTEX);
} else
{
osg_geom->setColorBinding(deprecated_osg::Geometry::BIND_PER_PRIMITIVE);
}
}
}
// normal smoothing
std::auto_ptr<openvrml::field_value> fv_solid = vrml_ifs->field("solid");
const openvrml::sfbool *solid = dynamic_cast<const openvrml::sfbool *>(fv_solid.get());
if (solid->value())
{
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
}
if (!osg_geom->getNormalArray())
{
#if 0
// GvdB: This is what I wanted to do, but got zero normals since the triangles were considered temporaries (?)
osgUtil::SmoothingVisitor().smooth(*osg_geom);
#else
// GvdB: So I ended up computing the smoothing normals myself. Also, I might add support for "creaseAngle" if a big need for it rises.
// However, for now I can perfectly live with the fact that all edges are smoothed despite the use of a crease angle.
osg::Vec3Array& coords = *static_cast<osg::Vec3Array*>(osg_geom->getVertexArray());
assert(coords.size());
osg::Vec3Array* normals = new osg::Vec3Array(coords.size());
for (osg::Vec3Array::iterator it = normals->begin(); it != normals->end(); ++it)
{
(*it).set(0.0f, 0.0f, 0.0f);
}
const osg::IntArray& indices = *static_cast<const osg::IntArray*>(osg_geom->getVertexIndices());
osg::DrawArrayLengths& lengths = *static_cast<osg::DrawArrayLengths*>(osg_geom->getPrimitiveSet(0));
unsigned index = 0;
for (osg::DrawArrayLengths::iterator it = lengths.begin(); it != lengths.end(); ++it)
{
assert(*it >= 3);
const osg::Vec3& v0 = coords[indices[index]];
const osg::Vec3& v1 = coords[indices[index + 1]];
const osg::Vec3& v2 = coords[indices[index + 2]];
osg::Vec3 normal = (v1 - v0) ^ (v2 - v0);
normal.normalize();
for (int i = 0; i != *it; ++i)
{
(*normals)[indices[index + i]] += normal;
}
index += *it;
}
assert(index == indices.size());
for(osg::Vec3Array::iterator it = normals->begin(); it != normals->end(); ++it)
{
(*it).normalize();
}
osg_geom->setNormalArray(normals);
osg_geom->setNormalIndices(const_cast<osg::IndexArray*>(osg_geom->getVertexIndices()));
osg_geom->setNormalBinding(deprecated_osg::Geometry::BIND_PER_VERTEX);
#endif
}
osg::DrawArrayLengths& lengths = *static_cast<osg::DrawArrayLengths*>(osg_geom->getPrimitiveSet(0));
osg::DrawArrayLengths::iterator it = lengths.begin();
if (it != lengths.end())
{
switch (*it)
{
case 3:
while (++it != lengths.end() && *it == 3)
;
if (it == lengths.end())
{
// All polys are triangles
osg::ref_ptr<osg::DrawArrays> mesh = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLES);
mesh->setCount(lengths.size() * 3);
osg_geom->removePrimitiveSet(0);
osg_geom->addPrimitiveSet(mesh.get());
}
break;
case 4:
while (++it != lengths.end() && *it == 4)
;
if (it == lengths.end())
{
// All polys are quads
osg::ref_ptr<osg::DrawArrays> mesh = new osg::DrawArrays(osg::PrimitiveSet::QUADS);
mesh->setCount(lengths.size() * 4);
osg_geom->removePrimitiveSet(0);
osg_geom->addPrimitiveSet(mesh.get());
}
break;
}
}
return osg_geom.get();
}

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src/osgPlugins/vrml/LICENSE.txt
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@ -1,504 +0,0 @@
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That's all there is to it!

539
src/osgPlugins/vrml/Primitives.cpp
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@ -1,539 +0,0 @@
// -*-c++-*-
#include "ReaderWriterVRML2.h"
#include <complex>
#if defined(_MSC_VER)
# pragma warning(disable: 4250)
# pragma warning(disable: 4290)
# pragma warning(disable: 4800)
#endif
#include <openvrml/node.h>
#include <osg/CullFace>
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97IndexedLineSet(openvrml::node *vrml_ifs) const
{
osg::ref_ptr<deprecated_osg::Geometry> osg_geom = new deprecated_osg::Geometry();
osg_geom->addPrimitiveSet(new osg::DrawArrayLengths(osg::PrimitiveSet::LINE_STRIP));
// get array of vertex coordinate_nodes
if(vrml_ifs->type().id() == "IndexedLineSet")
{
std::auto_ptr<openvrml::field_value> fv = vrml_ifs->field("coord");
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::coordinate_node *vrml_coord_node = dynamic_cast<openvrml::coordinate_node *>((sfn->value()).get());
const std::vector<openvrml::vec3f> &vrml_coord = vrml_coord_node->point();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
unsigned i;
for (i = 0; i < vrml_coord.size(); i++)
{
openvrml::vec3f vec = vrml_coord[i];
osg_vertices->push_back(osg::Vec3(vec[0], vec[1], vec[2]));
}
osg_geom->setVertexArray(osg_vertices.get());
// get array of vertex indices
std::auto_ptr<openvrml::field_value> fv2 = vrml_ifs->field("coordIndex");
const openvrml::mfint32 *vrml_coord_index = dynamic_cast<const openvrml::mfint32 *>(fv2.get());
osg::ref_ptr<osg::IntArray> osg_vert_index = new osg::IntArray();
int num_vert = 0;
for (i = 0; i < vrml_coord_index->value().size(); i++)
{
int index = vrml_coord_index->value()[i];
if (index == -1)
{
static_cast<osg::DrawArrayLengths*>(osg_geom->getPrimitiveSet(0))->push_back(num_vert);
num_vert = 0;
}
else
{
osg_vert_index->push_back(index);
++num_vert;
}
}
if (num_vert)
{
//GvdB: Last coordIndex wasn't -1
static_cast<osg::DrawArrayLengths*>(osg_geom->getPrimitiveSet(0))->push_back(num_vert);
}
osg_geom->setVertexIndices(osg_vert_index.get());
}
// get array of colours per vertex (if specified)
{
std::auto_ptr<openvrml::field_value> fv = vrml_ifs->field("color");
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::color_node *vrml_color_node = dynamic_cast<openvrml::color_node *>(sfn->value().get());
if (vrml_color_node != 0) // if no colors, node is NULL pointer
{
const std::vector<openvrml::color> &vrml_colors = vrml_color_node->color();
osg::ref_ptr<osg::Vec3Array> osg_colors = new osg::Vec3Array();
unsigned i;
for (i = 0; i < vrml_colors.size(); i++)
{
const openvrml::color color = vrml_colors[i];
osg_colors->push_back(osg::Vec3(color.r(), color.g(), color.b()));
}
osg_geom->setColorArray(osg_colors.get());
// get array of color indices
std::auto_ptr<openvrml::field_value> fv2 = vrml_ifs->field("colorIndex");
const openvrml::mfint32 *vrml_color_index = dynamic_cast<const openvrml::mfint32 *>(fv2.get());
osg::ref_ptr<osg::IntArray> osg_color_index = new osg::IntArray();
if(vrml_color_index->value().size() > 0)
{
for (i = 0; i < vrml_color_index->value().size(); i++)
{
int index = vrml_color_index->value()[i];
if (index != -1) {
osg_color_index->push_back(index);
}
}
osg_geom->setColorIndices(osg_color_index.get());
} else
// unspecified, use coordIndices field
osg_geom->setColorIndices(const_cast<osg::IndexArray*>(osg_geom->getVertexIndices()));
// get color binding
std::auto_ptr<openvrml::field_value> fv3 = vrml_ifs->field("colorPerVertex");
const openvrml::sfbool *vrml_color_per_vertex = dynamic_cast<const openvrml::sfbool *>(fv3.get());
if (vrml_color_per_vertex->value())
{
osg_geom->setColorBinding(deprecated_osg::Geometry::BIND_PER_VERTEX);
} else
{
osg_geom->setColorBinding(deprecated_osg::Geometry::BIND_PER_PRIMITIVE);
}
}
}
osg_geom->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
return osg_geom;
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Box(openvrml::node* vrml_box) const
{
std::auto_ptr<openvrml::field_value> fv = vrml_box->field("size");
const openvrml::vec3f &size = static_cast<const openvrml::sfvec3f *> (fv.get())->value();
osg::Vec3 halfSize(size[0] * 0.5f, size[1] * 0.5f, size[2] * 0.5f);
BoxLibrary::const_iterator it = m_boxLibrary.find(halfSize);
if (it != m_boxLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<deprecated_osg::Geometry> osg_geom = new deprecated_osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
osg::ref_ptr<osg::DrawArrays> box = new osg::DrawArrays(osg::PrimitiveSet::QUADS);
osg_vertices->push_back(osg::Vec3(-halfSize[0], halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], -halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], -halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], -halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], -halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], -halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], -halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], -halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], -halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], -halfSize[1], halfSize[2]));
osg_vertices->push_back(osg::Vec3(-halfSize[0], -halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], -halfSize[1], -halfSize[2]));
osg_vertices->push_back(osg::Vec3(halfSize[0], -halfSize[1], halfSize[2]));
for (int i = 0; i != 6; ++i)
{
osg_texcoords->push_back(osg::Vec2(0.0f, 1.0f));
osg_texcoords->push_back(osg::Vec2(0.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(1.0f, 1.0f));
}
osg_normals->push_back(osg::Vec3(0.0f, 0.0f, 1.0f));
osg_normals->push_back(osg::Vec3(0.0f, 0.0f, -1.0f));
osg_normals->push_back(osg::Vec3(1.0f, 0.0f, 0.0f));
osg_normals->push_back(osg::Vec3(-1.0f, 0.0f, 0.0f));
osg_normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
osg_normals->push_back(osg::Vec3(0.0f, -1.0f, 0.0f));
box->setCount(osg_vertices->size());
osg_geom->addPrimitiveSet(box.get());
osg_geom->setVertexArray(osg_vertices.get());
osg_geom->setTexCoordArray(0, osg_texcoords.get());
osg_geom->setNormalArray(osg_normals.get());
osg_geom->setNormalBinding(deprecated_osg::Geometry::BIND_PER_PRIMITIVE);
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_boxLibrary[halfSize] = osg_geom;
return osg_geom.get();
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Sphere(openvrml::node* vrml_sphere) const
{
std::auto_ptr<openvrml::field_value> fv = vrml_sphere->field("radius");
const float radius = static_cast<const openvrml::sffloat *> (fv.get())->value();
SphereLibrary::const_iterator it = m_sphereLibrary.find(radius);
if (it != m_sphereLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
unsigned int numSegments = 40;
unsigned int numRows = 20;
const float thetaDelta = 2.0f * float(osg::PI) / float(numSegments);
const float texCoordSDelta = 1.0f / float(numSegments);
const float phiDelta = float(osg::PI) / float(numRows);
const float texCoordTDelta = 1.0f / float(numRows);
float phi = -0.5f * float(osg::PI);
float texCoordT = 0.0f;
osg::ref_ptr<osg::DrawArrayLengths> sphere = new osg::DrawArrayLengths(osg::PrimitiveSet::QUAD_STRIP);
for (unsigned int i = 0; i < numRows; ++i, phi += phiDelta, texCoordT += texCoordTDelta)
{
std::complex<float> latBottom = std::polar(1.0f, phi);
std::complex<float> latTop = std::polar(1.0f, phi + phiDelta);
std::complex<float> eBottom = latBottom * radius;
std::complex<float> eTop = latTop * radius;
float theta = 0.0f;
float texCoordS = 0.0f;
for (unsigned int j = 0; j < numSegments; ++j, theta += thetaDelta, texCoordS += texCoordSDelta)
{
std::complex<float> n = -std::polar(1.0f, theta);
osg_normals->push_back(osg::Vec3(latTop.real() * n.imag(), latTop.imag(), latTop.real() * n.real()));
osg_normals->push_back(osg::Vec3(latBottom.real() * n.imag(), latBottom.imag(), latBottom.real() * n.real()));
osg_texcoords->push_back(osg::Vec2(texCoordS, texCoordT + texCoordTDelta));
osg_texcoords->push_back(osg::Vec2(texCoordS, texCoordT));
osg_vertices->push_back(osg::Vec3(eTop.real() * n.imag(), eTop.imag(), eTop.real() * n.real()));
osg_vertices->push_back(osg::Vec3(eBottom.real() * n.imag(), eBottom.imag(), eBottom.real() * n.real()));
}
osg_normals->push_back(osg::Vec3(0.0f, latTop.imag(), -latTop.real()));
osg_normals->push_back(osg::Vec3(0.0f, latBottom.imag(), -latBottom.real()));
osg_texcoords->push_back(osg::Vec2(1.0f, texCoordT + texCoordTDelta));
osg_texcoords->push_back(osg::Vec2(1.0f, texCoordT));
osg_vertices->push_back(osg::Vec3(0.0f, eTop.imag(), -eTop.real()));
osg_vertices->push_back(osg::Vec3(0.0f, eBottom.imag(), -eBottom.real()));
sphere->push_back(numSegments * 2 + 2);
}
osg_geom->addPrimitiveSet(sphere.get());
osg_geom->setVertexArray(osg_vertices.get());
osg_geom->setTexCoordArray(0, osg_texcoords.get());
osg_geom->setNormalArray(osg_normals.get(), osg::Array::BIND_PER_VERTEX);
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_sphereLibrary[radius] = osg_geom;
return osg_geom.get();
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cone(openvrml::node* vrml_cone) const
{
float height = static_cast<const openvrml::sffloat*>(vrml_cone->field("height").get())->value();
float radius = static_cast<const openvrml::sffloat*>(vrml_cone->field("bottomRadius").get())->value();
bool bottom = static_cast<const openvrml::sfbool*>(vrml_cone->field("bottom").get())->value();
bool side = static_cast<const openvrml::sfbool*>(vrml_cone->field("side").get())->value();
QuadricKey key(height, radius, bottom, side, false);
ConeLibrary::const_iterator it = m_coneLibrary.find(key);
if (it != m_coneLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
unsigned int numSegments = 40;
const float thetaDelta = 2.0f * float(osg::PI) / float(numSegments);
float topY = height * 0.5f;
float bottomY = height * -0.5f;
if (side)
{
osg::ref_ptr<osg::DrawArrays> side = new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP);
const float texCoordDelta = 1.0f / float(numSegments);
float theta = 0.0f;
float texCoord = 0.0f;
for (unsigned int i = 0; i < numSegments; ++i, theta += thetaDelta, texCoord += texCoordDelta)
{
std::complex<float> n = -std::polar(1.0f, theta);
std::complex<float> e = n * radius;
osg::Vec3 normal(n.imag() * height, radius, n.real() * height);
normal.normalize();
osg_normals->push_back(normal);
osg_normals->push_back(normal);
osg_texcoords->push_back(osg::Vec2(texCoord, 1.0f));
osg_texcoords->push_back(osg::Vec2(texCoord, 0.0f));
osg_vertices->push_back(osg::Vec3(0.0f, topY, 0.0f));
osg_vertices->push_back(osg::Vec3(e.imag(), bottomY, e.real()));
}
// do last point by hand to ensure no round off errors.
osg::Vec3 normal(0.0f, radius, -height);
normal.normalize();
osg_normals->push_back(normal);
osg_normals->push_back(normal);
osg_texcoords->push_back(osg::Vec2(1.0f, 1.0f));
osg_texcoords->push_back(osg::Vec2(1.0f, 0.0f));
osg_vertices->push_back(osg::Vec3(0.0f, topY, 0.0f));
osg_vertices->push_back(osg::Vec3(0.0f, bottomY, -radius));
side->setCount(osg_vertices->size());
osg_geom->addPrimitiveSet(side.get());
}
if (bottom)
{
osg::ref_ptr<osg::DrawArrays> bottom = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN);
size_t first = osg_vertices->size();
bottom->setFirst(first);
float theta = 0.0f;
for (unsigned int i = 0; i < numSegments; ++i, theta += thetaDelta)
{
std::complex<float> n = -std::polar(1.0f, theta);
std::complex<float> e = n * radius;
osg_normals->push_back(osg::Vec3(0.0f, -1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(0.5f - 0.5f * n.imag(), 0.5f + 0.5f * n.real()));
osg_vertices->push_back(osg::Vec3(-e.imag(), bottomY, e.real()));
}
// do last point by hand to ensure no round off errors.
osg_normals->push_back(osg::Vec3(0.0f, -1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(0.5f, 0.0f));
osg_vertices->push_back(osg::Vec3(0.0f, bottomY, -radius));
bottom->setCount(osg_vertices->size() - first);
osg_geom->addPrimitiveSet(bottom.get());
}
osg_geom->setVertexArray(osg_vertices.get());
osg_geom->setTexCoordArray(0, osg_texcoords.get());
osg_geom->setNormalArray(osg_normals.get(), osg::Array::BIND_PER_VERTEX);
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_coneLibrary[key] = osg_geom;
return osg_geom.get();
}
osg::ref_ptr<osg::Geometry> ReaderWriterVRML2::convertVRML97Cylinder(openvrml::node* vrml_cylinder) const
{
float height = static_cast<const openvrml::sffloat*>(vrml_cylinder->field("height").get())->value();
float radius = static_cast<const openvrml::sffloat*>(vrml_cylinder->field("radius").get())->value();
bool bottom = static_cast<const openvrml::sfbool*>(vrml_cylinder->field("bottom").get())->value();
bool side = static_cast<const openvrml::sfbool*>(vrml_cylinder->field("side").get())->value();
bool top = static_cast<const openvrml::sfbool*>(vrml_cylinder->field("top").get())->value();
QuadricKey key(height, radius, bottom, side, top);
CylinderLibrary::const_iterator it = m_cylinderLibrary.find(key);
if (it != m_cylinderLibrary.end())
{
return (*it).second.get();
}
osg::ref_ptr<osg::Geometry> osg_geom = new osg::Geometry();
osg::ref_ptr<osg::Vec3Array> osg_vertices = new osg::Vec3Array();
osg::ref_ptr<osg::Vec2Array> osg_texcoords = new osg::Vec2Array();
osg::ref_ptr<osg::Vec3Array> osg_normals = new osg::Vec3Array();
unsigned int numSegments = 40;
const float thetaDelta = 2.0f * float(osg::PI) / float(numSegments);
float topY = height * 0.5f;
float bottomY = height * -0.5f;
if (side)
{
osg::ref_ptr<osg::DrawArrays> side = new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP);
const float texCoordDelta = 1.0f / float(numSegments);
float theta = 0.0f;
float texCoord = 0.0f;
for (unsigned int i = 0; i < numSegments; ++i, theta += thetaDelta, texCoord += texCoordDelta)
{
std::complex<float> n = -std::polar(1.0f, theta);
std::complex<float> e = n * radius;
osg::Vec3 normal(n.imag(), 0.0f, n.real());
osg_normals->push_back(normal);
osg_normals->push_back(normal);
osg_texcoords->push_back(osg::Vec2(texCoord, 1.0f));
osg_texcoords->push_back(osg::Vec2(texCoord, 0.0f));
osg_vertices->push_back(osg::Vec3(e.imag(), topY, e.real()));
osg_vertices->push_back(osg::Vec3(e.imag(), bottomY, e.real()));
}
// do last point by hand to ensure no round off errors.
osg::Vec3 normal(0.0f, 0.0f, -1.0f);
osg_normals->push_back(normal);
osg_normals->push_back(normal);
osg_texcoords->push_back(osg::Vec2(1.0f, 1.0f));
osg_texcoords->push_back(osg::Vec2(1.0f, 0.0f));
osg_vertices->push_back(osg::Vec3(0.0f, topY, -radius));
osg_vertices->push_back(osg::Vec3(0.0f, bottomY, -radius));
side->setCount(osg_vertices->size());
osg_geom->addPrimitiveSet(side.get());
}
if (bottom)
{
osg::ref_ptr<osg::DrawArrays> bottom = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN);
size_t first = osg_vertices->size();
bottom->setFirst(first);
float theta = 0.0f;
for (unsigned int i = 0; i < numSegments; ++i, theta += thetaDelta)
{
std::complex<float> n = -std::polar(1.0f, theta);
std::complex<float> e = n * radius;
osg_normals->push_back(osg::Vec3(0.0f, -1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(0.5f - 0.5f * n.imag(), 0.5f + 0.5f * n.real()));
osg_vertices->push_back(osg::Vec3(-e.imag(), bottomY, e.real()));
}
// do last point by hand to ensure no round off errors.
osg_normals->push_back(osg::Vec3(0.0f, -1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(0.5f, 0.0f));
osg_vertices->push_back(osg::Vec3(0.0f, bottomY, -radius));
bottom->setCount(osg_vertices->size() - first);
osg_geom->addPrimitiveSet(bottom.get());
}
if (top)
{
osg::ref_ptr<osg::DrawArrays> top = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLE_FAN);
size_t first = osg_vertices->size();
top->setFirst(first);
float theta = 0.0f;
for (unsigned int i = 0; i < numSegments; ++i, theta += thetaDelta)
{
std::complex<float> n = -std::polar(1.0f, theta);
std::complex<float> e = n * radius;
osg_normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(0.5f + 0.5f * n.imag(), 0.5f - 0.5f * n.real()));
osg_vertices->push_back(osg::Vec3(e.imag(), topY, e.real()));
}
// do last point by hand to ensure no round off errors.
osg_normals->push_back(osg::Vec3(0.0f, 1.0f, 0.0f));
osg_texcoords->push_back(osg::Vec2(0.5f, 1.0f));
osg_vertices->push_back(osg::Vec3(0.0f, topY, -radius));
top->setCount(osg_vertices->size() - first);
osg_geom->addPrimitiveSet(top.get());
}
osg_geom->setVertexArray(osg_vertices.get());
osg_geom->setTexCoordArray(0, osg_texcoords.get());
osg_geom->setNormalArray(osg_normals.get(), osg::Array::BIND_PER_VERTEX);
osg_geom->getOrCreateStateSet()->setAttributeAndModes(new osg::CullFace(osg::CullFace::BACK));
m_cylinderLibrary[key] = osg_geom;
return osg_geom.get();
}

14
src/osgPlugins/vrml/README.txt
View File

@ -1,14 +0,0 @@
########################################################
# Replacement VRML plugin for OpenSceneGraph. #
# (C) J.Ciger B.Herbelin T.Abaci 2003,2004 VRlab EPFL #
########################################################
- dependencies:
OpenVRML (http://openvrml.org/)
Boost (http://www.boost.org/)
OpenSceneGraph (http://www.openscenegraph.org/)
CAUTION!
This version of the plugin requires OpenVRML 0.17.12 and Boost 1.38.
Older version *may* work, but were not tested!

651
src/osgPlugins/vrml/ReaderWriterVRML2.cpp
View File

@ -1,651 +0,0 @@
// -*-c++-*-
/*
*
* VRML2 file converter for OpenSceneGraph.
*
* authors :
* Johan Nouvel (johan_nouvel@yahoo.com) for the writeNode function.
*
* Jan Ciger (jan.ciger@gmail.com),
* Tolga Abaci (tolga.abaci@gmail.com),
* Bruno Herbelin (bruno.herbelin@gmail.com)
*
* (c) VRlab EPFL, Switzerland, 2004-2006
*
* Gino van den Bergen, DTECTA (gino@dtecta.com)
* Xiangxian Wang (xiangxianwang@yahoo.com.cn)
*
*/
#include "ReaderWriterVRML2.h"
#include "ConvertToVRML.h"
#include <iostream>
#include <fstream>
#include <boost/algorithm/string/predicate.hpp>
#include <boost/utility.hpp>
#if defined(_MSC_VER)
# pragma warning(disable: 4250)
# pragma warning(disable: 4290)
# pragma warning(disable: 4800)
#endif
#include <openvrml/browser.h>
#include <openvrml/node.h>
#include <osg/TexEnv>
#include <osg/CullFace>
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/Material>
#include <osg/Image>
#include <osg/Texture2D>
#include <osg/Group>
#include <osg/MatrixTransform>
#include <osg/Light>
#include <osg/LightSource>
#include <osg/Depth>
#include <osg/Notify>
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgDB/FileNameUtils>
#include <osgDB/FileUtils>
#include <assert.h>
#include <map>
// -------------------------------------------------------------------------------------
// OpenVRML helper class
// -------------------------------------------------------------------------------------
class resource_fetcher: public openvrml::resource_fetcher
{
private:
virtual std::auto_ptr<openvrml::resource_istream> do_get_resource(const std::string & uri)
{
using std::auto_ptr;
using std::invalid_argument;
using std::string;
using openvrml::resource_istream;
class file_resource_istream: public resource_istream
{
std::string url_;
std::filebuf buf_;
public:
explicit file_resource_istream(const std::string & path) :
resource_istream(&this->buf_)
{
//
// Note that the failbit is set in the constructor if no data
// can be read from the stream. This is important. If the
// failbit is not set on such a stream, OpenVRML will attempt
// to read data from a stream that cannot provide it.
//
if (!this->buf_.open(path.c_str(), ios_base::in | ios_base::binary))
{
this->setstate(ios_base::badbit);
}
}
void url(const std::string & str) throw (std::bad_alloc)
{
this->url_ = str;
}
private:
virtual const std::string do_url() const throw ()
{
return this->url_;
}
virtual const std::string do_type() const throw ()
{
//
// A real application should use OS facilities for this;
// however, that is beyond the scope of this example (which
// is intended to be portable and stupid).
//
using std::find;
using std::string;
using boost::algorithm::iequals;
string media_type = "application/octet-stream";
const string::const_reverse_iterator dot_pos = find(this->url_.rbegin(), this->url_.rend(), '.');
if (dot_pos == this->url_.rend() || boost::next(dot_pos.base()) == this->url_.end())
{
return media_type;
}
const string::const_iterator hash_pos = find(boost::next(dot_pos.base()), this->url_.end(), '#');
const string ext(dot_pos.base(), hash_pos);
if (iequals(ext, "wrl") || iequals(ext, "vrml"))
{
media_type = "model/vrml";
}
else if (iequals(ext, "png"))
{
media_type = "image/png";
}
else if (iequals(ext, "jpg") || iequals(ext, "jpeg"))
{
media_type = "image/jpeg";
}
return media_type;
}
virtual bool do_data_available() const throw ()
{
return !!(*this);
}
};
const string scheme = uri.substr(0, uri.find_first_of(':'));
if (scheme != "file")
{
throw invalid_argument('\"' + scheme + "\" URI scheme not "
"supported");
}
//
// file://
// ^
// 01234567
//
string path = uri.substr(uri.find_first_of('/', 7));
auto_ptr<resource_istream> in(new file_resource_istream(path));
static_cast<file_resource_istream *> (in.get())->url(uri);
return in;
}
};
// -------------------------------------------------------------------------------------
// Register with Registry to instantiate the above reader/writer.
REGISTER_OSGPLUGIN(vrml, ReaderWriterVRML2)
osgDB::ReaderWriter::ReadResult ReaderWriterVRML2::readNode(const std::string& fname, const osgDB::Options* opt) const
{
std::string fileName = osgDB::findDataFile(fname, opt);
if (fileName.empty())
return ReadResult::FILE_NOT_FOUND;
std::fstream null;
resource_fetcher fetcher;
openvrml::browser *b = new openvrml::browser(fetcher, null, null);
osgDB::ifstream vrml_stream(fileName.c_str());
if (!vrml_stream.is_open())
{
OSG_INFO << "ReaderWriterVRML2: Could not open \"" << fileName << "\"" << std::endl;
return ReadResult::FILE_NOT_FOUND;
}
try
{
const std::vector< boost::intrusive_ptr< openvrml::node > > & mfn = b->create_vrml_from_stream(vrml_stream);
if(mfn.empty())
{
OSG_INFO << "ReaderWriterVRML2: OpenVRML library did not return any vrml nodes." << std::endl;
return ReadResult::FILE_NOT_HANDLED;
}
else
{
osg::ref_ptr<osg::MatrixTransform> osg_root = new osg::MatrixTransform(osg::Matrix( 1, 0, 0, 0,
0, 0, 1, 0,
0, -1, 0, 0,
0, 0, 0, 1));
osgDB::getDataFilePathList().push_front(osgDB::getFilePath(fileName));
for (unsigned i = 0; i < mfn.size(); i++)
{
openvrml::node *vrml_node = mfn[i].get();
osg_root->addChild(convertFromVRML(vrml_node));
}
osgDB::getDataFilePathList().pop_front();
return osg_root.get();
}
}
catch (const openvrml::invalid_vrml& e)
{
OSG_INFO << "ReaderWriterVRML2: Invalid VRML in line " << e.line << " at column " << e.column << ": \"" << e.what() << "\"" << std::endl;
return ReadResult::FILE_NOT_HANDLED;
}
catch (const std::invalid_argument& e)
{
OSG_INFO << "ReaderWriterVRML2: Invalid argument: \"" << e.what() << "\"" << std::endl;
return ReadResult::FILE_NOT_HANDLED;
}
}
osgDB::ReaderWriter::WriteResult ReaderWriterVRML2::writeNode(const osg::Node& root,const std::string& filename, const osgDB::ReaderWriter::Options *options) const
{
std::string ext = osgDB::getLowerCaseFileExtension(filename);
if (!acceptsExtension(ext)) return WriteResult::FILE_NOT_HANDLED;
osg::notify(osg::INFO) << "osgDB::ReaderWriterVRML::writeNode() Writing file "
<< filename << std::endl;
return(convertToVRML(root,filename,options));
}
osg::Node* ReaderWriterVRML2::convertFromVRML(openvrml::node *obj) const
{
//static int osgLightNum = 0; //light
if (obj->type().id() == "Group") // Group node
{
osg::ref_ptr<osg::Group> osg_group = new osg::Group;
if (!obj->id().empty())
osg_group->setName(obj->id());
try
{
std::auto_ptr<openvrml::field_value> fv = obj->field("children");
if ( fv->type() == openvrml::field_value::mfnode_id )
{
const openvrml::mfnode* mfn = dynamic_cast<const openvrml::mfnode *>(fv.get());
openvrml::mfnode::value_type node_ptr_vector = mfn->value();
openvrml::mfnode::value_type::iterator it_npv;
for (it_npv = node_ptr_vector.begin(); it_npv != node_ptr_vector.end(); it_npv++)
{
openvrml::node *node = (*(it_npv)).get();
osg_group->addChild(convertFromVRML(node));
}
}
}
catch (openvrml::unsupported_interface&)
{
// no children
}
return osg_group.release();
}
else if (obj->type().id() == "Transform") // Handle transforms
{
openvrml::transform_node *vrml_transform;
vrml_transform = dynamic_cast<openvrml::transform_node *>(obj);
openvrml::mat4f vrml_m = vrml_transform->transform();
osg::ref_ptr<osg::MatrixTransform> osg_m = new osg::MatrixTransform(osg::Matrix(vrml_m[0][0], vrml_m[0][1], vrml_m[0][2], vrml_m[0][3], vrml_m[1][0], vrml_m[1][1], vrml_m[1][2], vrml_m[1][3], vrml_m[2][0], vrml_m[2][1], vrml_m[2][2], vrml_m[2][3], vrml_m[3][0], vrml_m[3][1], vrml_m[3][2], vrml_m[3][3]));
if (!obj->id().empty())
osg_m->setName(obj->id());
try
{
std::auto_ptr<openvrml::field_value> fv = obj->field("children");
if ( fv->type() == openvrml::field_value::mfnode_id )
{
const openvrml::mfnode* mfn = dynamic_cast<const openvrml::mfnode *>(fv.get());
openvrml::mfnode::value_type node_ptr_vector = mfn->value();
openvrml::mfnode::value_type::iterator it_npv;
for (it_npv = node_ptr_vector.begin(); it_npv != node_ptr_vector.end(); it_npv++)
{
openvrml::node *node = (*(it_npv)).get();
osg_m->addChild(convertFromVRML(node));
}
}
}
catch (openvrml::unsupported_interface&)
{
// no children
}
return osg_m.release();
}
else if ((obj->type()).id() == "Shape") // Handle Shape node
{
osg::ref_ptr<osg::Geometry> osg_geom;
// parse the geometry
{
std::auto_ptr<openvrml::field_value> fv = obj->field("geometry");
if (fv->type() == openvrml::field_value::sfnode_id)
{
const openvrml::sfnode * sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::sfnode::value_type node_ptr = sfn->value();
if (node_ptr.get()) {
// is it indexed_face_set_node ?
if (node_ptr->type().id()=="IndexedFaceSet")
osg_geom = convertVRML97IndexedFaceSet(node_ptr.get());
else if (node_ptr->type().id()=="IndexedLineSet")
osg_geom = convertVRML97IndexedLineSet(node_ptr.get());
else if (node_ptr->type().id() == "Box")
osg_geom = convertVRML97Box(node_ptr.get());
else if (node_ptr->type().id() == "Sphere")
osg_geom = convertVRML97Sphere(node_ptr.get());
else if (node_ptr->type().id() == "Cone")
osg_geom = convertVRML97Cone(node_ptr.get());
else if (node_ptr->type().id() == "Cylinder")
osg_geom = convertVRML97Cylinder(node_ptr.get());
else
{
// other geometry types not handled yet
}
if (osg_geom.valid() && !node_ptr->id().empty())
osg_geom->setName(node_ptr->id());
}
}
}
osg::ref_ptr<osg::Geode> osg_geode = new osg::Geode();
if (!obj->id().empty())
osg_geode->setName(obj->id());
osg_geode->addDrawable(osg_geom.get());
osg::StateSet *osg_stateset = osg_geode->getOrCreateStateSet();
osg::ref_ptr<osg::Material> osg_mat = new osg::Material();
osg_stateset->setAttributeAndModes(osg_mat.get());
osg_mat->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
// parse the appearance
{
std::auto_ptr<openvrml::field_value> fv = obj->field("appearance");
if (fv->type() == openvrml::field_value::sfnode_id)
{
const openvrml::sfnode *sfn = dynamic_cast<const openvrml::sfnode *>(fv.get());
openvrml::appearance_node *vrml_app = dynamic_cast<openvrml::appearance_node *>(sfn->value().get());
const boost::intrusive_ptr<openvrml::node> vrml_material_node = vrml_app->material();
const boost::intrusive_ptr<openvrml::texture_node> vrml_texture_node = openvrml::node_cast<openvrml::texture_node*>(vrml_app->texture().get());
const openvrml::material_node *vrml_material = dynamic_cast<const openvrml::material_node *>(vrml_material_node.get());
if (vrml_material != NULL)
{
osg_mat->setAmbient(osg::Material::FRONT_AND_BACK,
osg::Vec4(vrml_material->ambient_intensity(),
vrml_material->ambient_intensity(),
vrml_material->ambient_intensity(),
1.0));
osg_mat->setDiffuse(osg::Material::FRONT_AND_BACK,
osg::Vec4(vrml_material->diffuse_color().r(),
vrml_material->diffuse_color().g(),
vrml_material->diffuse_color().b(),
1.0));
osg_mat->setEmission(osg::Material::FRONT_AND_BACK,
osg::Vec4(vrml_material->emissive_color().r(),
vrml_material->emissive_color().g(),
vrml_material->emissive_color().b(),
1.0));
osg_mat->setSpecular(osg::Material::FRONT_AND_BACK,
osg::Vec4(vrml_material->specular_color().r(),
vrml_material->specular_color().g(),
vrml_material->specular_color().b(),
1.0));
osg_mat->setShininess(osg::Material::FRONT_AND_BACK, vrml_material->shininess() );
if (vrml_material->transparency() > 0.0f)
{
osg_mat->setTransparency(osg::Material::FRONT_AND_BACK, vrml_material->transparency());
osg_stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
osg_stateset->setAttribute(new osg::Depth(osg::Depth::LESS, 0.0, 1.0, false)); // GvdB: transparent objects do not write depth
osg_stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
else
{
osg_stateset->setMode(GL_BLEND, osg::StateAttribute::OFF);
osg_stateset->setRenderingHint(osg::StateSet::OPAQUE_BIN);
}
osg_stateset->setAttributeAndModes(osg_mat.get());
}
// if texture is provided
if (vrml_texture_node != 0)
{
osg::ref_ptr<osg::Image> image;
if (vrml_texture_node->type().id() == "ImageTexture")
{
try
{
std::auto_ptr<openvrml::field_value> texture_url_fv = vrml_texture_node->field("url");
const openvrml::mfstring *mfs = dynamic_cast<const openvrml::mfstring *>(texture_url_fv.get());
const std::string &url = mfs->value()[0];
image = osgDB::readRefImageFile(url);
if (!image.valid())
{
std::cerr << "texture file " << url << " not found !" << std::endl << std::flush;
}
}
catch (openvrml::unsupported_interface&)
{
// no url field in the texture
}
}
if (!image.valid())
{
// If we cannot read the image try the openvrml builtin mechanisms to read the image.
// This includes PixelTexture fields.
const openvrml::image& vrml_image = vrml_texture_node->image();
// Convert to an osg image
image = new osg::Image;
image->allocateImage(vrml_image.x(), vrml_image.y(), 1, GL_RGBA, GL_UNSIGNED_BYTE);
for (std::size_t y = 0; y < vrml_image.y(); ++y)
{
for (std::size_t x = 0; x < vrml_image.x(); ++x)
{
openvrml::int32 p = vrml_image.pixel(x, y);
unsigned char* data = image->data(x, y);
data[0] = 0xff & (p >> 24);
data[1] = 0xff & (p >> 16);
data[2] = 0xff & (p >> 8);
data[3] = 0xff & (p >> 0);
}
}
}
if (image.valid())
{
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
texture->setImage(image.get());
// get the real texture wrapping parameters
if (vrml_texture_node->repeat_s())
{
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
}
else
{
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
}
if (vrml_texture_node->repeat_t())
{
texture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
}
else
{
texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP);
}
texture->setWrap(osg::Texture::WRAP_R, osg::Texture::REPEAT);
osg_stateset->setTextureAttributeAndModes(0, texture.get());
if (image->isImageTranslucent()) {
osg_stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
osg_stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
}
}
}
}
}
return osg_geode.release();
}
else
{
return 0;
}
#if 0
/*
} else if(obj->type.id == "DirectionalLight") // Handle lights
{
osg::Group* lightGroup = new osg::Group;
openvrml::vrml97_node::directional_light_node *vrml_light;
vrml_light = dynamic_cast<openvrml::vrml97_node::directional_light_node *>(obj);
// create light with global params
osg::Light* myLight = new osg::Light;
myLight->setLightNum(osgLightNum);
myLight->setAmbient(osg::Vec4(vrml_light->ambient_intensity(),vrml_light->ambient_intensity(),vrml_light->ambient_intensity(),vrml_light->ambient_intensity()));
float osgR = vrml_light->color().r()*vrml_light->intensity();
float osgG = vrml_light->color().g()*vrml_light->intensity();
float osgB = vrml_light->color().b()*vrml_light->intensity();
myLight->setDiffuse(osg::Vec4(osgR, osgG, osgB, 1.0f));
myLight->setSpecular(osg::Vec4(osgR, osgG, osgB, 1.0f));
// configure light as DIRECTIONAL
openvrml::sfvec3f &dir = vrml_light->direction_;
myLight->setDirection(osg::Vec3(dir.value[0],dir.value[1],dir.value[2]));
myLight->setPosition(osg::Vec4(dir.value[0],dir.value[1],dir.value[2], 0.0f));
// add the light in the scenegraph
osg::LightSource* lightS = new osg::LightSource;
lightS->setLight(myLight);
if (vrml_light->on()) {
lightS->setLocalStateSetModes(osg::StateAttribute::ON);
//lightS->setStateSetModes(*rootStateSet,osg::StateAttribute::ON);
}
lightGroup->addChild(lightS);
osgLightNum++;
return lightGroup;
} else if(obj->type.id == "PointLight") // Handle lights
{
osg::Group* lightGroup = new osg::Group;
openvrml::vrml97_node::point_light_node *vrml_light;
vrml_light = dynamic_cast<openvrml::vrml97_node::point_light_node *>(obj);
// create light with global params
osg::Light* myLight = new osg::Light;
myLight->setLightNum(osgLightNum);
//std::cout<<"lightnum = "<<osgLightNum;
openvrml::sfvec3f &pos = vrml_light->location_;
myLight->setPosition(osg::Vec4(pos.value[0], pos.value[1], pos.value[2], 1.0f));
myLight->setAmbient(osg::Vec4(vrml_light->ambient_intensity(),vrml_light->ambient_intensity(),vrml_light->ambient_intensity(),vrml_light->ambient_intensity()));
float osgR = vrml_light->color().r()*vrml_light->intensity();
float osgG = vrml_light->color().g()*vrml_light->intensity();
float osgB = vrml_light->color().b()*vrml_light->intensity();
myLight->setDiffuse(osg::Vec4(osgR, osgG, osgB, 1.0f));
myLight->setSpecular(osg::Vec4(osgR, osgG, osgB, 1.0f));
// configure light as POINT
myLight->setDirection(osg::Vec3(0.f,0.f,0.f));
// add the light in the scenegraph
osg::LightSource* lightS = new osg::LightSource;
lightS->setLight(myLight);
if (vrml_light->on()) {
lightS->setLocalStateSetModes(osg::StateAttribute::ON);
//lightS->setStateSetModes(*rootStateSet,osg::StateAttribute::ON);
}
lightGroup->addChild(lightS);
osgLightNum++;
return lightGroup;
} else if(obj->type.id == "SpotLight") // Handle lights
{
osg::Group* lightGroup = new osg::Group;
openvrml::vrml97_node::spot_light_node *vrml_light;
vrml_light = dynamic_cast<openvrml::vrml97_node::spot_light_node *>(obj);
// create light with global params
osg::Light* myLight = new osg::Light;
myLight->setLightNum(osgLightNum);
myLight->setPosition(osg::Vec4(0.0f, 0.0f, 0.0f, 1.0f));
myLight->setAmbient(osg::Vec4(vrml_light->ambient_intensity(),vrml_light->ambient_intensity(),vrml_light->ambient_intensity(),vrml_light->ambient_intensity()));
float osgR = vrml_light->color().r()*vrml_light->intensity();
float osgG = vrml_light->color().g()*vrml_light->intensity();
float osgB = vrml_light->color().b()*vrml_light->intensity();
myLight->setDiffuse(osg::Vec4(osgR, osgG, osgB, 1.0f));
myLight->setSpecular(osg::Vec4(osgR, osgG, osgB, 1.0f));
// configure light as SPOT
openvrml::sfvec3f &dir = vrml_light->direction_;
myLight->setDirection(osg::Vec3(dir.value[0],dir.value[1],dir.value[2]));
// The cutOff value in osg ranges from 0 to 90, we need
// to divide by 2 to avoid openGL error.
// myLight->setSpotCutoff(ls.fallsize/2.0f);
// The bigger the differens is between fallsize and hotsize
// the bigger the exponent should be.
// float diff = ls.fallsize - ls.hotsize;
// myLight->setSpotExponent(diff);
// add the light in the scenegraph
osg::LightSource* lightS = new osg::LightSource;
lightS->setLight(myLight);
if (vrml_light->on()) {
lightS->setLocalStateSetModes(osg::StateAttribute::ON);
//lightS->setStateSetModes(*rootStateSet,osg::StateAttribute::ON);
}
lightGroup->addChild(lightS);
osgLightNum++;
return lightGroup;
} else {
return NULL;
}
*/
#endif
return 0;
}

118
src/osgPlugins/vrml/ReaderWriterVRML2.h
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@ -1,118 +0,0 @@
// -*-c++-*-
/*
*
* VRML2 file converter for OpenSceneGraph.
*
* authors :
* Johan Nouvel (johan_nouvel@yahoo.com) for the writeNode function.
*
* Jan Ciger (jan.ciger@gmail.com),
* Tolga Abaci (tolga.abaci@gmail.com),
* Bruno Herbelin (bruno.herbelin@gmail.com)
*
* (c) VRlab EPFL, Switzerland, 2004-2006
*
* Gino van den Bergen, DTECTA (gino@dtecta.com)
* Xiangxian Wang (xiangxianwang@yahoo.com.cn)
*
*/
#include <string>
#include <map>
#include <osg/Config>
#ifndef OSG_USE_DEPRECATED_GEOMETRY_METHODS
#define OSG_USE_DEPRECATED_GEOMETRY_METHODS 1
#endif
#include <osg/Node>
#include <osg/Geometry>
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgDB/FileNameUtils>
#include <osgDB/FileUtils>
namespace openvrml
{
class node;
}
class QuadricKey
{
public:
QuadricKey(float height, float radius, unsigned bottom, unsigned side, unsigned top)
: m_height(height)
, m_radius(radius)
, m_flags(bottom | (side << 1) | (top << 2))
{}
bool operator<(const QuadricKey& rhs) const
{
return m_height < rhs.m_height ||
(m_height == rhs.m_height && (m_radius < rhs.m_radius ||
(m_radius == rhs.m_radius && m_flags < rhs.m_flags)));
}
private:
float m_height;
float m_radius;
unsigned m_flags;
};
/**
* OpenSceneGraph plugin wrapper/converter.
*/
class ReaderWriterVRML2
: public osgDB::ReaderWriter
{
public:
ReaderWriterVRML2()
{
supportsExtension("wrl","VRML format");
supportsOption("directoryTexture=<aDirectory>","Export option. If a texture needs to be copied, it will be into directory <aDirectory> instead of the working one");
supportsOption("convertTextures=0","Export option. Keep textures in their original format but copy them into <directoryTexture> directory");
supportsOption("convertTextures=-1","Export option. Use textures but do not convert them, keep them in their original format and location.");
supportsOption("convertTextures=-2","Export option. Do not use textures, export only geometry");
supportsOption("convertTextures=-3","Export option. Default value.Convert textures to jpeg or png format, according to alpha values, and copy them into <directoryTexture> directory ");
supportsOption("textureUnit=<X>","Export option. Use parameters of texture unit X instead of unit 0 in case of multitexture input file");
}
virtual const char* className() const { return "VRML2 Reader/Writer"; }
virtual ReadResult readObject(const std::string& fileName, const osgDB::ReaderWriter::Options* options) const
{
return readNode(fileName, options);
}
virtual ReadResult readNode(const std::string&, const osgDB::Options *options) const;
// virtual ReadResult readNode(std::istream& fin, const osgDB::Options* options) const;
virtual WriteResult writeNode(const osg::Node&,const std::string& filename,const osgDB::ReaderWriter::Options *options) const;
private:
typedef std::map<float, osg::ref_ptr<osg::Geometry> > SphereLibrary;
typedef std::map<osg::Vec3, osg::ref_ptr<osg::Geometry> > BoxLibrary;
typedef std::map<QuadricKey, osg::ref_ptr<osg::Geometry> > ConeLibrary;
typedef std::map<QuadricKey, osg::ref_ptr<osg::Geometry> > CylinderLibrary;
osg::Node* convertFromVRML(openvrml::node *obj) const;
osg::ref_ptr<osg::Geometry> convertVRML97IndexedFaceSet(openvrml::node *vrml_ifs) const;
osg::ref_ptr<osg::Geometry> convertVRML97IndexedLineSet(openvrml::node *vrml_ifs) const;
osg::ref_ptr<osg::Geometry> convertVRML97Box(openvrml::node* vrml_box) const;
osg::ref_ptr<osg::Geometry> convertVRML97Sphere(openvrml::node* vrml_sphere) const;
osg::ref_ptr<osg::Geometry> convertVRML97Cone(openvrml::node* vrml_cone) const;
osg::ref_ptr<osg::Geometry> convertVRML97Cylinder(openvrml::node* vrml_cylinder) const;
mutable BoxLibrary m_boxLibrary;
mutable SphereLibrary m_sphereLibrary;
mutable ConeLibrary m_coneLibrary;
mutable CylinderLibrary m_cylinderLibrary;
};