kicad/3d-viewer/3d_cache/sg/sg_coords.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2017 Cirilo Bernardo <cirilo.bernardo@gmail.com>
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* Copyright (C) 2020 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 "3d_cache/sg/sg_coords.h"
#include "3d_cache/sg/sg_helpers.h"
#include "3d_cache/sg/sg_normals.h"
#include "3d_cache/sg/sg_faceset.h"
SGCOORDS::SGCOORDS( SGNODE* aParent ) : SGNODE( aParent )
{
m_SGtype = S3D::SGTYPE_COORDS;
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if( nullptr != aParent && S3D::SGTYPE_FACESET != aParent->GetNodeType() )
{
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m_Parent = nullptr;
wxLogTrace( MASK_3D_SG, "%s:%s:%d * [BUG] inappropriate parent to SGCOORDS (type %s)",
__FILE__, __FUNCTION__, __LINE__, aParent->GetNodeType() );
}
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else if( nullptr != aParent && S3D::SGTYPE_FACESET == aParent->GetNodeType() )
{
m_Parent->AddChildNode( this );
}
}
SGCOORDS::~SGCOORDS()
{
coords.clear();
}
bool SGCOORDS::SetParent( SGNODE* aParent, bool notify )
{
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if( nullptr != m_Parent )
{
if( aParent == m_Parent )
return true;
// handle the change in parents
if( notify )
m_Parent->unlinkChildNode( this );
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m_Parent = nullptr;
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if( nullptr == aParent )
return true;
}
// only a SGFACESET may be parent to a SGCOORDS
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if( nullptr != aParent && S3D::SGTYPE_FACESET != aParent->GetNodeType() )
return false;
m_Parent = aParent;
if( m_Parent )
m_Parent->AddChildNode( this );
return true;
}
SGNODE* SGCOORDS::FindNode(const char *aNodeName, const SGNODE *aCaller) noexcept
{
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if( nullptr == aNodeName || 0 == aNodeName[0] )
return nullptr;
if( !m_Name.compare( aNodeName ) )
return this;
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return nullptr;
}
void SGCOORDS::unlinkChildNode( const SGNODE* aCaller ) noexcept
{
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wxCHECK( aCaller, /* void */ );
}
void SGCOORDS::unlinkRefNode( const SGNODE* aCaller ) noexcept
{
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wxCHECK( aCaller, /* void */ );
}
bool SGCOORDS::AddRefNode( SGNODE* aNode ) noexcept
{
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wxCHECK( aNode, false );
return false;
}
bool SGCOORDS::AddChildNode( SGNODE* aNode ) noexcept
{
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wxCHECK( aNode, false );
return false;
}
bool SGCOORDS::GetCoordsList( size_t& aListSize, SGPOINT*& aCoordsList )
{
if( coords.empty() )
{
aListSize = 0;
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aCoordsList = nullptr;
return false;
}
aListSize = coords.size();
aCoordsList = &coords[0];
return true;
}
void SGCOORDS::SetCoordsList( size_t aListSize, const SGPOINT* aCoordsList )
{
coords.clear();
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if( 0 == aListSize || nullptr == aCoordsList )
return;
for( size_t i = 0; i < aListSize; ++i )
coords.push_back( aCoordsList[i] );
}
void SGCOORDS::AddCoord( double aXValue, double aYValue, double aZValue )
{
coords.emplace_back( aXValue, aYValue, aZValue );
}
void SGCOORDS::AddCoord( const SGPOINT& aPoint )
{
coords.push_back( aPoint );
}
void SGCOORDS::ReNameNodes( void )
{
m_written = false;
// rename this node
m_Name.clear();
GetName();
}
bool SGCOORDS::WriteVRML( std::ostream& aFile, bool aReuseFlag )
{
if( coords.empty() )
return false;
if( aReuseFlag )
{
if( !m_written )
{
aFile << " coord DEF " << GetName() << " Coordinate { point [\n ";
m_written = true;
}
else
{
aFile << " coord USE " << GetName() << "\n";
return true;
}
}
else
{
aFile << " coord Coordinate { point [\n ";
}
std::string tmp;
size_t n = coords.size();
bool nline = false;
SGPOINT pt;
for( size_t i = 0; i < n; )
{
// ensure VRML output has 1U = 0.1 inch as per legacy kicad expectations
pt = coords[i];
pt.x /= 2.54;
pt.y /= 2.54;
pt.z /= 2.54;
S3D::FormatPoint( tmp, pt );
aFile << tmp ;
++i;
if( i < n )
{
aFile << ",";
if( nline )
{
aFile << "\n ";
nline = false;
}
else
{
nline = true;
}
}
}
aFile << "] }\n";
return true;
}
bool SGCOORDS::WriteCache( std::ostream& aFile, SGNODE* parentNode )
{
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if( nullptr == parentNode )
{
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wxCHECK( m_Parent, false );
SGNODE* np = m_Parent;
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while( nullptr != np->GetParent() )
np = np->GetParent();
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if( np->WriteCache( aFile, nullptr ) )
{
m_written = true;
return true;
}
return false;
}
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wxCHECK( parentNode == m_Parent, false );
if( !aFile.good() )
{
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wxLogTrace( MASK_3D_SG, "%s:%s:%d * [INFO] bad stream", __FILE__, __FUNCTION__, __LINE__ );
return false;
}
aFile << "[" << GetName() << "]";
size_t npts = coords.size();
aFile.write( (char*)&npts, sizeof(size_t) );
for( size_t i = 0; i < npts; ++i )
S3D::WritePoint( aFile, coords[i] );
if( aFile.fail() )
return false;
m_written = true;
return true;
}
bool SGCOORDS::ReadCache( std::istream& aFile, SGNODE* parentNode )
{
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wxCHECK( coords.empty(), false );
size_t npts;
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aFile.read( (char*) &npts, sizeof( size_t ) );
SGPOINT tmp;
if( aFile.fail() )
return false;
for( size_t i = 0; i < npts; ++i )
{
if( !S3D::ReadPoint( aFile, tmp ) || aFile.fail() )
return false;
coords.push_back( tmp );
}
return true;
}
bool SGCOORDS::CalcNormals( SGFACESET* callingNode, SGNODE** aPtr )
{
if( aPtr )
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*aPtr = nullptr;
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if( nullptr == m_Parent || nullptr == callingNode )
return false;
// the parent and all references must have indices; collect all
// indices into one std::vector<>
std::vector< int > ilist;
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SGNORMALS* np = nullptr;
if( callingNode == m_Parent )
{
((SGFACESET*)m_Parent)->GatherCoordIndices( ilist );
std::list< SGNODE* >::iterator sB = m_BackPointers.begin();
std::list< SGNODE* >::iterator eB = m_BackPointers.end();
while( sB != eB )
{
SGFACESET* fp = (SGFACESET*)(*sB);
fp->GatherCoordIndices( ilist );
++sB;
}
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np = ( (SGFACESET*) m_Parent )->m_Normals;
if( !np )
np = new SGNORMALS( m_Parent );
}
else
{
callingNode->GatherCoordIndices( ilist );
np = callingNode->m_Normals;
if( !np )
np = new SGNORMALS( callingNode );
}
if( S3D::CalcTriangleNormals( coords, ilist, np->norms ) )
{
if( aPtr )
*aPtr = np;
return true;
}
delete np;
return false;
}