328 lines
7.8 KiB
C++
328 lines
7.8 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
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* Copyright (C) 2021-2022 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <iostream>
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#include <sstream>
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#include <cmath>
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#include <wx/log.h>
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#include <wx/xml/xml.h>
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#include <wx/tokenzr.h>
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#include "x3d_ops.h"
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#include "x3d_ifaceset.h"
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#include "x3d_coords.h"
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#include "plugins/3dapi/ifsg_all.h"
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#include "wrlfacet.h"
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X3DIFACESET::X3DIFACESET() : X3DNODE()
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{
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m_Type = X3D_INDEXED_FACE_SET;
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coord = nullptr;
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init();
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}
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X3DIFACESET::X3DIFACESET( X3DNODE* aParent ) : X3DNODE()
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{
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m_Type = X3D_INDEXED_FACE_SET;
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coord = nullptr;
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init();
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if( nullptr != aParent )
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{
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X3DNODES ptype = aParent->GetNodeType();
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if( X3D_SHAPE == ptype )
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m_Parent = aParent;
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}
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if( nullptr != m_Parent )
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m_Parent->AddChildNode( this );
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}
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X3DIFACESET::~X3DIFACESET()
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{
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wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] Destroying IndexedFaceSet." ) );
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}
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void X3DIFACESET::init()
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{
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coord = nullptr;
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ccw = true;
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creaseAngle = 0.733f; // approx 42 degrees; this is larger than VRML spec.
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creaseLimit = 0.74317f; // cos( 0.733 )
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}
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void X3DIFACESET::readFields( wxXmlNode* aNode )
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{
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// DEF
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// ccw
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// creaseAngle
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// coordIndex
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wxXmlAttribute* prop;
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for( prop = aNode->GetAttributes(); prop != nullptr; prop = prop->GetNext() )
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{
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const wxString& pname = prop->GetName();
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if( pname == wxT( "DEF" ) )
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{
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m_Name = prop->GetValue();
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m_Dict->AddName( m_Name, this );
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}
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else if( pname == wxT( "ccw" ) )
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{
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X3D::ParseSFBool( prop->GetValue(), ccw );
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}
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else if( pname == wxT( "creaseAngle" ) )
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{
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X3D::ParseSFFloat( prop->GetValue(), creaseAngle );
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if( creaseAngle < 0.0f )
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creaseAngle = 0.0f;
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else if( creaseAngle > static_cast<float>( M_PI * 0.34f ) )
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creaseAngle = static_cast<float>( M_PI / 3.0f );
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creaseLimit = cosf( creaseAngle );
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}
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else if( pname == wxT( "coordIndex" ) )
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{
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wxStringTokenizer indices( prop->GetValue() );
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while( indices.HasMoreTokens() )
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{
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long index = 0;
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indices.GetNextToken().ToLong( &index );
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coordIndex.push_back( (int) index );
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}
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}
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}
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}
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bool X3DIFACESET::Read( wxXmlNode* aNode, X3DNODE* aTopNode, X3D_DICT& aDict )
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{
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if( nullptr == aTopNode || nullptr == aNode )
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return false;
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m_Dict = &aDict;
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readFields( aNode );
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bool ok = false;
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for( wxXmlNode* child = aNode->GetChildren(); child != nullptr; child = child->GetNext() )
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{
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if( child->GetName() == wxT( "Coordinate" ) )
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ok = X3D::ReadCoordinates( child, this, aDict );
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}
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if( false == ok )
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return false;
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if( !SetParent( aTopNode ) )
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return false;
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return true;
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}
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bool X3DIFACESET::SetParent( X3DNODE* aParent, bool doUnlink )
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{
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if( aParent == m_Parent )
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return true;
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if( nullptr != aParent )
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{
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X3DNODES nt = aParent->GetNodeType();
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if( nt != X3D_SHAPE )
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return false;
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}
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if( nullptr != m_Parent && doUnlink )
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m_Parent->unlinkChildNode( this );
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m_Parent = aParent;
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if( nullptr != m_Parent )
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m_Parent->AddChildNode( this );
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return true;
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}
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bool X3DIFACESET::AddChildNode( X3DNODE* aNode )
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{
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if( nullptr == aNode )
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return false;
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if( aNode->GetNodeType() != X3D_COORDINATE )
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return false;
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if( aNode == coord )
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return true;
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if( nullptr != coord )
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return false;
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m_Children.push_back( aNode );
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coord = aNode;
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if( aNode->GetParent() != this )
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aNode->SetParent( this );
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return true;
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}
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bool X3DIFACESET::AddRefNode( X3DNODE* aNode )
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{
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if( nullptr == aNode )
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return false;
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if( aNode->GetNodeType() != X3D_COORDINATE )
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return false;
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if( aNode == coord )
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return true;
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if( nullptr != coord )
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return false;
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m_Refs.push_back( aNode );
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aNode->addNodeRef( this );
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coord = aNode;
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return true;
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}
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SGNODE* X3DIFACESET::TranslateToSG( SGNODE* aParent )
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{
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S3D::SGTYPES ptype = S3D::GetSGNodeType( aParent );
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if( nullptr != aParent && ptype != S3D::SGTYPE_SHAPE )
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{
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wxLogTrace( traceVrmlPlugin,
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wxT( " * [BUG] IndexedFaceSet does not have a valid Shape parent "
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"(parent ID: %d)" ), ptype );
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return nullptr;
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}
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wxLogTrace( traceVrmlPlugin,
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wxT( " * [INFO] Translating IndexedFaceSet with %zu children, %zu references, "
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"%zu back pointers, and %zu coordinate indices." ),
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m_Children.size(), m_Refs.size(), m_BackPointers.size(), coordIndex.size() );
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if( m_sgNode )
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{
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if( nullptr != aParent )
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{
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if( nullptr == S3D::GetSGNodeParent( m_sgNode )
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&& !S3D::AddSGNodeChild( aParent, m_sgNode ) )
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{
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return nullptr;
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}
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else if( aParent != S3D::GetSGNodeParent( m_sgNode )
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&& !S3D::AddSGNodeRef( aParent, m_sgNode ) )
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{
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return nullptr;
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}
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}
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return m_sgNode;
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}
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size_t vsize = coordIndex.size();
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if( nullptr == coord || vsize < 3 )
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return nullptr;
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WRLVEC3F* pcoords;
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size_t coordsize;
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((X3DCOORDS*) coord)->GetCoords( pcoords, coordsize );
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if( coordsize < 3 )
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return nullptr;
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// check that all indices are valid
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for( size_t idx = 0; idx < vsize; ++idx )
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{
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if( coordIndex[idx] < 0 )
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continue;
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if( coordIndex[idx] >= (int)coordsize )
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return nullptr;
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}
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SHAPE lShape;
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FACET* fp = nullptr;
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size_t iCoord;
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int idx; // coordinate index
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// no per-vertex colors; we can save a few CPU cycles
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for( iCoord = 0; iCoord < vsize; ++iCoord )
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{
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idx = coordIndex[iCoord];
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if( idx < 0 )
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{
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if( nullptr != fp )
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{
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if( fp->HasMinPoints() )
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fp = nullptr;
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else
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fp->Init();
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}
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continue;
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}
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// if the coordinate is bad then skip it
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if( idx >= (int)coordsize )
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continue;
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if( nullptr == fp )
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fp = lShape.NewFacet();
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// push the vertex value and index
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fp->AddVertex( pcoords[idx], idx );
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}
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SGNODE* np = nullptr;
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if( ccw )
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np = lShape.CalcShape( aParent, nullptr, WRL1_ORDER::ORD_CCW, creaseLimit, true );
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else
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np = lShape.CalcShape( aParent, nullptr, WRL1_ORDER::ORD_CLOCKWISE, creaseLimit, true );
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return np;
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}
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