kicad/plugins/3d/vrml/v2/vrml2_faceset.cpp

970 lines
28 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
* Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <iostream>
#include <sstream>
#include <wx/log.h>
#include "vrml2_base.h"
#include "vrml2_faceset.h"
#include "vrml2_coords.h"
#include "vrml2_color.h"
#include "wrlfacet.h"
#include "plugins/3dapi/ifsg_all.h"
WRL2FACESET::WRL2FACESET() : WRL2NODE()
{
setDefaults();
m_Type = WRL2NODES::WRL2_INDEXEDFACESET;
}
WRL2FACESET::WRL2FACESET( WRL2NODE* aParent ) : WRL2NODE()
{
setDefaults();
m_Type = WRL2NODES::WRL2_INDEXEDFACESET;
m_Parent = aParent;
if( nullptr != m_Parent )
m_Parent->AddChildNode( this );
}
WRL2FACESET::~WRL2FACESET()
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 2 )
do {
std::ostringstream ostr;
ostr << " * [INFO] Destroying IndexedFaceSet with " << m_Children.size();
ostr << " children, " << m_Refs.size() << " references and ";
ostr << m_BackPointers.size() << " backpointers";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
}
void WRL2FACESET::setDefaults( void )
{
color = nullptr;
coord = nullptr;
normal = nullptr;
texCoord = nullptr;
ccw = true;
colorPerVertex = true;
convex = true;
normalPerVertex = true;
solid = true;
creaseAngle = 0.733f; // approx 42 degrees; this is larger than VRML spec.
creaseLimit = 0.74317f; // cos( 0.733 )
}
bool WRL2FACESET::checkNodeType( WRL2NODES aType )
{
// nodes must be one of:
// Color
// Coordinate
// Normal
// TextureCoordinate
switch( aType )
{
case WRL2NODES::WRL2_COLOR:
case WRL2NODES::WRL2_COORDINATE:
case WRL2NODES::WRL2_NORMAL:
case WRL2NODES::WRL2_TEXTURECOORDINATE:
break;
default:
return false;
break;
}
return true;
}
bool WRL2FACESET::isDangling( void )
{
// this node is dangling unless it has a parent of type WRL2_SHAPE
if( nullptr == m_Parent || m_Parent->GetNodeType() != WRL2NODES::WRL2_SHAPE )
return true;
return false;
}
bool WRL2FACESET::AddRefNode( WRL2NODE* aNode )
{
if( nullptr == aNode )
{
#ifdef DEBUG_VRML2
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] NULL passed for aNode";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
WRL2NODES type = aNode->GetNodeType();
if( !checkNodeType( type ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; unexpected child node '";
ostr << aNode->GetNodeTypeName( type ) << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
if( WRL2NODES::WRL2_COLOR == type )
{
if( nullptr != color )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple color nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
color = aNode;
return WRL2NODE::AddRefNode( aNode );
}
if( WRL2NODES::WRL2_COORDINATE == type )
{
if( nullptr != coord )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple coordinate nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
coord = aNode;
return WRL2NODE::AddRefNode( aNode );
}
if( WRL2NODES::WRL2_NORMAL == type )
{
if( nullptr != normal )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple normal nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
normal = aNode;
return WRL2NODE::AddRefNode( aNode );
}
if( WRL2NODES::WRL2_TEXTURECOORDINATE != type )
{
#ifdef DEBUG_VRML2
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] unexpected code branch";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
if( nullptr != texCoord )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple texCoord nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
texCoord = aNode;
return WRL2NODE::AddRefNode( aNode );
}
bool WRL2FACESET::AddChildNode( WRL2NODE* aNode )
{
if( nullptr == aNode )
{
#ifdef DEBUG_VRML2
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] NULL passed for aNode";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
WRL2NODES type = aNode->GetNodeType();
if( !checkNodeType( type ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; unexpected child node '";
ostr << aNode->GetNodeTypeName( type ) << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
if( WRL2NODES::WRL2_COLOR == type )
{
if( nullptr != color )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple color nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
color = aNode;
return WRL2NODE::AddChildNode( aNode );
}
if( WRL2NODES::WRL2_COORDINATE == type )
{
if( nullptr != coord )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple coordinate nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
coord = aNode;
return WRL2NODE::AddChildNode( aNode );
}
if( WRL2NODES::WRL2_NORMAL == type )
{
if( nullptr != normal )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple normal nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
normal = aNode;
return WRL2NODE::AddChildNode( aNode );
}
if( WRL2NODES::WRL2_TEXTURECOORDINATE != type )
{
#ifdef DEBUG_VRML2
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] unexpected code branch";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
if( nullptr != texCoord )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; multiple texCoord nodes";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
texCoord = aNode;
return WRL2NODE::AddChildNode( aNode );
}
bool WRL2FACESET::Read( WRLPROC& proc, WRL2BASE* aTopNode )
{
size_t line, column;
proc.GetFilePosData( line, column );
char tok = proc.Peek();
if( proc.eof() )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; unexpected eof at line ";
ostr << line << ", column " << column;
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
if( '{' != tok )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << proc.GetError() << "\n";
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad file format; expecting '{' but got '" << tok;
ostr << "' at line " << line << ", column " << column;
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
proc.Pop();
std::string glob;
while( true )
{
if( proc.Peek() == '}' )
{
proc.Pop();
break;
}
if( !proc.ReadName( glob ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << proc.GetError();
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
// expecting one of:
// [node]
// color
// coord
// normal
// texCoord
// [bool]
// ccw
// colorPerVertex
// convex
// normalPerVertex
// solid
// [ vector<int> ]
// colorIndex
// coordIndex
// normalIndex;
// [float]
// creaseAngle
proc.GetFilePosData( line, column );
if( !glob.compare( "ccw" ) )
{
if( !proc.ReadSFBool( ccw ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid ccw at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "colorPerVertex" ) )
{
if( !proc.ReadSFBool( colorPerVertex ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid colorPerVertex at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "convex" ) )
{
if( !proc.ReadSFBool( convex ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid convex at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "normalPerVertex" ) )
{
if( !proc.ReadSFBool( normalPerVertex ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid normalPerVertex at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "solid" ) )
{
if( !proc.ReadSFBool( solid ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid solid at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "creaseAngle" ) )
{
if( !proc.ReadSFFloat( creaseAngle ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid creaseAngle at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'\n";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
if( creaseAngle < 0.0 )
creaseAngle = 0.0f;
else if( creaseAngle > M_PI_2 )
creaseAngle = static_cast<float>( M_PI_2 );
creaseLimit = cosf( creaseAngle );
}
else if( !glob.compare( "colorIndex" ) )
{
if( !proc.ReadMFInt( colorIndex ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid colorIndex at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "coordIndex" ) )
{
if( !proc.ReadMFInt( coordIndex ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid coordIndex at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "normalIndex" ) )
{
if( !proc.ReadMFInt( normalIndex ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] invalid normalIndex at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'\n";
ostr << " * [INFO] message: '" << proc.GetError() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "color" ) )
{
if( !aTopNode->ReadNode( proc, this, nullptr ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] could not read color node information";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "coord" ) )
{
if( !aTopNode->ReadNode( proc, this, nullptr ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] could not read coord node information";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "normal" ) )
{
if( !aTopNode->ReadNode( proc, this, nullptr ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] could not read normal node information";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else if( !glob.compare( "texCoord" ) )
{
if( !aTopNode->ReadNode( proc, this, nullptr ) )
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] could not read texCoord node information";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
}
else
{
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 1 )
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad IndexedFaceSet at line " << line << ", column ";
ostr << column << "\n";
ostr << " * [INFO] file: '" << proc.GetFileName() << "'";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return false;
}
} // while( true ) -- reading contents of IndexedFaceSet{}
return true;
}
SGNODE* WRL2FACESET::TranslateToSG( SGNODE* aParent )
{
S3D::SGTYPES ptype = S3D::GetSGNodeType( aParent );
if( nullptr != aParent && ptype != S3D::SGTYPE_SHAPE )
{
#ifdef DEBUG_VRML2
do {
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] IndexedFaceSet does not have a Shape parent (parent ID: ";
ostr << ptype << ")";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
return nullptr;
}
#if defined( DEBUG_VRML2 ) && ( DEBUG_VRML2 > 2 )
do {
std::ostringstream ostr;
ostr << " * [INFO] Translating IndexedFaceSet with " << m_Children.size();
ostr << " children, " << m_Refs.size() << " references, ";
ostr << m_BackPointers.size() << " backpointers and ";
ostr << coordIndex.size() << " coord indices";
wxLogTrace( MASK_VRML, "%s\n", ostr.str().c_str() );
} while( 0 );
#endif
if( m_sgNode )
{
if( nullptr != aParent )
{
if( nullptr == S3D::GetSGNodeParent( m_sgNode )
&& !S3D::AddSGNodeChild( aParent, m_sgNode ) )
{
return nullptr;
}
else if( aParent != S3D::GetSGNodeParent( m_sgNode )
&& !S3D::AddSGNodeRef( aParent, m_sgNode ) )
{
return nullptr;
}
}
return m_sgNode;
}
size_t vsize = coordIndex.size();
if( nullptr == coord || vsize < 3 )
return nullptr;
WRLVEC3F* pcoords;
size_t coordsize;
((WRL2COORDS*) coord)->GetCoords( pcoords, coordsize );
if( coordsize < 3 )
return nullptr;
// check that all indices are valid
for( size_t idx = 0; idx < vsize; ++idx )
{
if( coordIndex[idx] < 0 )
continue;
if( coordIndex[idx] >= (int)coordsize )
return nullptr;
}
SHAPE lShape;
FACET* fp = nullptr;
size_t iCoord;
int idx; // coordinate index
size_t cidx = 0; // color index
SGCOLOR pc1;
if( nullptr == color )
{
// no per-vertex colors; we can save a few CPU cycles
for( iCoord = 0; iCoord < vsize; ++iCoord )
{
idx = coordIndex[iCoord];
if( idx < 0 )
{
if( nullptr != fp )
{
if( fp->HasMinPoints() )
fp = nullptr;
else
fp->Init();
}
continue;
}
// if the coordinate is bad then skip it
if( idx >= (int)coordsize )
continue;
if( nullptr == fp )
fp = lShape.NewFacet();
// push the vertex value and index
fp->AddVertex( pcoords[idx], idx );
}
}
else
{
WRL2COLOR* cn = (WRL2COLOR*) color;
WRLVEC3F tc;
for( iCoord = 0; iCoord < vsize; ++iCoord )
{
idx = coordIndex[iCoord];
if( idx < 0 )
{
if( nullptr != fp )
{
if( fp->HasMinPoints() )
fp = nullptr;
else
fp->Init();
}
if( !colorPerVertex )
++cidx;
continue;
}
// if the coordinate is bad then skip it
if( idx >= (int)coordsize )
continue;
if( nullptr == fp )
fp = lShape.NewFacet();
// push the vertex value and index
fp->AddVertex( pcoords[idx], idx );
// push the color if appropriate
if( !colorPerVertex )
{
if( colorIndex.empty() )
{
cn->GetColor( cidx, tc.x, tc.y, tc.z );
pc1.SetColor( tc.x, tc.y, tc.z );
fp->AddColor( pc1 );
}
else
{
if( cidx < colorIndex.size() )
cn->GetColor( colorIndex[cidx], tc.x, tc.y, tc.z );
else
cn->GetColor( colorIndex.back(), tc.x, tc.y, tc.z );
pc1.SetColor( tc.x, tc.y, tc.z );
fp->AddColor( pc1 );
}
}
else
{
if( colorIndex.empty() )
{
cn->GetColor( idx, tc.x, tc.y, tc.z );
pc1.SetColor( tc.x, tc.y, tc.z );
fp->AddColor( pc1 );
}
else
{
if( iCoord < colorIndex.size() )
cn->GetColor( colorIndex[iCoord], tc.x, tc.y, tc.z );
else
cn->GetColor( colorIndex.back(), tc.x, tc.y, tc.z );
pc1.SetColor( tc.x, tc.y, tc.z );
fp->AddColor( pc1 );
}
}
}
}
SGNODE* np = nullptr;
if( ccw )
np = lShape.CalcShape( aParent, nullptr, WRL1_ORDER::ORD_CCW, creaseLimit, true );
else
np = lShape.CalcShape( aParent, nullptr, WRL1_ORDER::ORD_CLOCKWISE, creaseLimit, true );
return np;
}
void WRL2FACESET::unlinkChildNode( const WRL2NODE* aNode )
{
if( nullptr == aNode )
return;
if( aNode->GetParent() == this )
{
if( aNode == color )
color = nullptr;
else if( aNode == coord )
coord = nullptr;
else if( aNode == normal )
normal = nullptr;
else if( aNode == texCoord )
texCoord = nullptr;
}
WRL2NODE::unlinkChildNode( aNode );
}
void WRL2FACESET::unlinkRefNode( const WRL2NODE* aNode )
{
if( nullptr == aNode )
return;
if( aNode->GetParent() != this )
{
if( aNode == color )
color = nullptr;
else if( aNode == coord )
coord = nullptr;
else if( aNode == normal )
normal = nullptr;
else if( aNode == texCoord )
texCoord = nullptr;
}
WRL2NODE::unlinkRefNode( aNode );
}
bool WRL2FACESET::HasColors( void )
{
if( nullptr == color )
return false;
return ( (WRL2COLOR*) color )->HasColors();
}