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kicad/plugins/3d/oce/loadmodel.cpp
jean-pierre charras 87cf37c847 wip
2024-08-31 11:38:51 +02:00

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/*
* 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) 2020-2024 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
*
*
* Some code lifted from FreeCAD, copyright (c) 2018 Zheng, Lei (realthunder) under GPLv2
*/
#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <cstring>
#include <map>
#include <vector>
#include <wx/filename.h>
#include <wx/log.h>
#include <wx/stdpaths.h>
#include <wx/string.h>
#include <wx/utils.h>
#include <wx/wfstream.h>
#include <wx/zipstrm.h>
#include <advanced_config.h>
#include <decompress.hpp>
#include <TDocStd_Document.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <Quantity_Color.hxx>
#include <XCAFApp_Application.hxx>
#include <AIS_Shape.hxx>
#include <IGESControl_Reader.hxx>
#include <IGESCAFControl_Reader.hxx>
#include <Interface_Static.hxx>
#include <STEPControl_Reader.hxx>
#include <STEPCAFControl_Reader.hxx>
#include <XCAFDoc_DocumentTool.hxx>
#include <XCAFDoc_ColorTool.hxx>
#include <XCAFDoc_ShapeTool.hxx>
#include <BRep_Tool.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Shape.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Compound.hxx>
#include <TopExp_Explorer.hxx>
#include <Quantity_Color.hxx>
#include <Poly_Triangulation.hxx>
#include <Poly_PolygonOnTriangulation.hxx>
#include <Precision.hxx>
#include <TDF_LabelSequence.hxx>
#include <TDF_ChildIterator.hxx>
#include <TDF_Tool.hxx>
#include <TDataStd_Name.hxx>
#include <Standard_Version.hxx>
#include "plugins/3dapi/ifsg_all.h"
// log mask for wxLogTrace
#define MASK_OCE wxT( "PLUGIN_OCE" )
#define MASK_OCE_EXTRA wxT( "PLUGIN_OCE_EXTRA" )
typedef std::map<std::size_t, SGNODE*> COLORMAP;
typedef std::map<std::string, SGNODE*> FACEMAP;
typedef std::map<std::string, std::vector<SGNODE*>> NODEMAP;
typedef std::pair<std::string, std::vector<SGNODE*>> NODEITEM;
struct DATA;
bool processLabel( const TDF_Label& aLabel, DATA& aData, SGNODE* aParent,
std::vector< SGNODE* >* aItems );
bool processFace( const TopoDS_Face& face, DATA& data, SGNODE* parent,
std::vector< SGNODE* >* items, Quantity_ColorRGBA* color );
#if OCC_VERSION_HEX >= 0x070500
#define OCC_COLOR_SPACE Quantity_TOC_sRGB
#else
#define OCC_COLOR_SPACE Quantity_TOC_RGB
#endif
struct DATA
{
Handle( TDocStd_Document ) m_doc;
Handle( XCAFDoc_ColorTool ) m_color;
Handle( XCAFDoc_ShapeTool ) m_assy;
SGNODE* scene;
SGNODE* defaultColor;
Quantity_Color refColor;
NODEMAP shapes; // SGNODE lists representing a TopoDS_SOLID / COMPOUND
COLORMAP colors; // SGAPPEARANCE nodes
FACEMAP faces; // SGSHAPE items representing a TopoDS_FACE
bool renderBoth; // set TRUE if we're processing IGES
bool hasSolid; // set TRUE if there is no parent SOLID
DATA()
{
scene = nullptr;
defaultColor = nullptr;
refColor.SetValues( Quantity_NOC_BLACK );
renderBoth = false;
hasSolid = false;
}
~DATA()
{
// destroy any colors with no parent
if( !colors.empty() )
{
COLORMAP::iterator sC = colors.begin();
COLORMAP::iterator eC = colors.end();
while( sC != eC )
{
if( nullptr == S3D::GetSGNodeParent( sC->second ) )
S3D::DestroyNode( sC->second );
++sC;
}
colors.clear();
}
if( defaultColor && nullptr == S3D::GetSGNodeParent( defaultColor ) )
S3D::DestroyNode(defaultColor);
// destroy any faces with no parent
if( !faces.empty() )
{
FACEMAP::iterator sF = faces.begin();
FACEMAP::iterator eF = faces.end();
while( sF != eF )
{
if( nullptr == S3D::GetSGNodeParent( sF->second ) )
S3D::DestroyNode( sF->second );
++sF;
}
faces.clear();
}
// destroy any shapes with no parent
if( !shapes.empty() )
{
NODEMAP::iterator sS = shapes.begin();
NODEMAP::iterator eS = shapes.end();
while( sS != eS )
{
std::vector< SGNODE* >::iterator sV = sS->second.begin();
std::vector< SGNODE* >::iterator eV = sS->second.end();
while( sV != eV )
{
if( nullptr == S3D::GetSGNodeParent( *sV ) )
S3D::DestroyNode( *sV );
++sV;
}
sS->second.clear();
++sS;
}
shapes.clear();
}
if( scene )
S3D::DestroyNode(scene);
}
// find collection of tagged nodes
bool GetShape( const std::string& id, std::vector< SGNODE* >*& listPtr )
{
listPtr = nullptr;
NODEMAP::iterator item;
item = shapes.find( id );
if( item == shapes.end() )
return false;
listPtr = &item->second;
return true;
}
// find collection of tagged nodes
SGNODE* GetFace( const std::string& id )
{
FACEMAP::iterator item;
item = faces.find( id );
if( item == faces.end() )
return nullptr;
return item->second;
}
// return color if found; if not found, create SGAPPEARANCE
SGNODE* GetColor( Quantity_ColorRGBA* colorObj )
{
if( nullptr == colorObj )
{
if( defaultColor )
return defaultColor;
IFSG_APPEARANCE app( true );
app.SetShininess( 0.05f );
app.SetSpecular( 0.04f, 0.04f, 0.04f );
app.SetAmbient( 0.1f, 0.1f, 0.1f );
app.SetDiffuse( 0.6f, 0.6f, 0.6f );
defaultColor = app.GetRawPtr();
return defaultColor;
}
Quantity_Color colorRgb = colorObj->GetRGB();
Standard_Real r, g, b;
colorObj->GetRGB().Values( r, g, b, OCC_COLOR_SPACE );
std::size_t hash = std::hash<double>{}( colorRgb.Distance( refColor ) )
^ ( std::hash<float>{}( colorObj->Alpha() ) << 1 );
std::map<std::size_t, SGNODE*>::iterator item;
item = colors.find( hash );
if( item != colors.end() )
return item->second;
IFSG_APPEARANCE app( true );
app.SetShininess( 0.1f );
app.SetSpecular( 0.12f, 0.12f, 0.12f );
app.SetAmbient( 0.1f, 0.1f, 0.1f );
app.SetDiffuse( r, g, b );
app.SetTransparency( 1.0f - colorObj->Alpha() );
colors.emplace( hash, app.GetRawPtr() );
return app.GetRawPtr();
}
};
enum FormatType
{
FMT_NONE = 0,
FMT_STEP,
FMT_STPZ,
FMT_IGES
};
FormatType fileType( const char* aFileName )
{
wxFileName fname( wxString::FromUTF8Unchecked( aFileName ) );
wxFFileInputStream ifile( fname.GetFullPath() );
if( !ifile.IsOk() )
return FMT_NONE;
if( fname.GetExt().MakeUpper().EndsWith( wxT( "STPZ" ) )
|| fname.GetExt().MakeUpper().EndsWith( wxT( "GZ" ) ) )
{
return FMT_STPZ;
}
char iline[82];
// The expected header should be the first line.
// However some files can have a comment at the beginning of the file
// So read up to max_line_count lines to try to find the actual header
const int max_line_count = 3;
for( int ii = 0; ii < max_line_count; ii++ )
{
memset( iline, 0, 82 );
ifile.Read( iline, 82 );
iline[81] = 0; // ensure NULL termination when string is too long
// check for STEP in Part 21 format
// (this can give false positives since Part 21 is not exclusively STEP)
if( !strncmp( iline, "ISO-10303-21;", 13 ) )
{
return FMT_STEP;
break;
}
std::string fstr = iline;
// check for STEP in XML format
// (this can give both false positive and false negatives)
if( fstr.find( "urn:oid:1.0.10303." ) != std::string::npos )
return FMT_STEP;
// Note: this is a very simple test which can yield false positives; the only
// sure method for determining if a file *not* an IGES model is to attempt
// to load it.
if( iline[72] == 'S' && ( iline[80] == 0 || iline[80] == 13 || iline[80] == 10 ) )
return FMT_IGES;
// Only a comment (starting by "/*") is allowed as header
if( strncmp( iline, "/*", 2 ) != 0 ) // not a comment
break;
}
return FMT_NONE;
}
/**
* Gets the absolute tag string for a given label in the form of ##:##:##:##
*
* @param aLabel is the label to get the string for
* @param aTag is the resulting tag string based by reference
*/
void getTag( const TDF_Label& aLabel, std::string& aTag )
{
std::ostringstream ostr;
if( aLabel.IsNull() )
{
wxLogTrace( MASK_OCE, wxT( "Null label passed to getTag" ) );
return;
}
TColStd_ListOfInteger tagList;
TDF_Tool::TagList( aLabel, tagList );
for( TColStd_ListOfInteger::Iterator it( tagList ); it.More(); it.Next() )
{
ostr << it.Value();
ostr << ":";
}
aTag = ostr.str();
aTag.pop_back(); // kill the last colon
}
static wxString getLabelName( const TDF_Label& aLabel )
{
wxString txt;
Handle( TDataStd_Name ) name;
if( !aLabel.IsNull() && aLabel.FindAttribute( TDataStd_Name::GetID(), name ) )
{
TCollection_ExtendedString extstr = name->Get();
char* str = new char[extstr.LengthOfCString() + 1];
extstr.ToUTF8CString( str );
txt = wxString::FromUTF8( str );
delete[] str;
txt = txt.Trim();
}
return txt;
}
/**
* Gets a string for a given TopAbs_ShapeEnum element
*
* @param aShape enum value to convert
*/
std::string getShapeName( TopAbs_ShapeEnum aShape )
{
switch( aShape )
{
case TopAbs_COMPOUND: return "COMPOUND";
case TopAbs_COMPSOLID: return "COMPSOLID";
case TopAbs_SOLID: return "SOLID";
case TopAbs_SHELL: return "SHELL";
case TopAbs_FACE: return "FACE";
case TopAbs_WIRE: return "WIRE";
case TopAbs_EDGE: return "EDGE";
case TopAbs_VERTEX: return "VERTEX";
case TopAbs_SHAPE: return "SHAPE";
}
return "UNKNOWN";
}
static int colorFloatToDecimal( float aVal )
{
return aVal * 255;
}
static inline std::ostream& operator<<( std::ostream& aOStream, const Quantity_ColorRGBA& aColor )
{
Quantity_Color rgb = aColor.GetRGB();
return aOStream << "rgba(" << colorFloatToDecimal( rgb.Red() ) << ","
<< colorFloatToDecimal( rgb.Green() ) << ","
<< colorFloatToDecimal( rgb.Blue() ) << ","
<< colorFloatToDecimal( aColor.Alpha() )
<< ")";
}
/**
* Gets a string for a given TopAbs_ShapeEnum element
*
* @param aLabel Label to convert
* @param aShapeTool Handle to shape tool being used
* @param aColorTool Handle to color tool being used
* @param aPregMsg Any prefixed message to insert (used for indentation in dump)
*/
static void printLabel( TDF_Label aLabel, Handle( XCAFDoc_ShapeTool ) aShapeTool,
Handle( XCAFDoc_ColorTool ) aColorTool, const char* aPreMsg = nullptr )
{
if( aLabel.IsNull() )
return;
if( !aPreMsg )
aPreMsg = "Label: ";
TCollection_AsciiString entry;
TDF_Tool::Entry( aLabel, entry );
std::ostringstream ss;
ss << aPreMsg << entry << ", " << getLabelName( aLabel )
<< ( aShapeTool->IsShape( aLabel ) ? ", shape" : "" )
<< ( aShapeTool->IsTopLevel( aLabel ) ? ", topLevel" : "" )
<< ( aShapeTool->IsFree( aLabel ) ? ", free" : "" )
<< ( aShapeTool->IsAssembly( aLabel ) ? ", assembly" : "" )
<< ( aShapeTool->IsSimpleShape( aLabel ) ? ", simple" : "" )
<< ( aShapeTool->IsCompound( aLabel ) ? ", compound" : "" )
<< ( aShapeTool->IsReference( aLabel ) ? ", reference" : "" )
<< ( aShapeTool->IsComponent( aLabel ) ? ", component" : "" )
<< ( aShapeTool->IsSubShape( aLabel ) ? ", subshape" : "" );
if( aShapeTool->IsSubShape( aLabel ) )
{
auto shape = aShapeTool->GetShape( aLabel );
if( !shape.IsNull() )
ss << ", " << getShapeName( shape.ShapeType() );
}
if( aShapeTool->IsShape( aLabel ) )
{
Quantity_ColorRGBA c;
if( aColorTool->GetColor( aLabel, XCAFDoc_ColorGen, c ) )
ss << ", gc: " << c;
if( aColorTool->GetColor( aLabel, XCAFDoc_ColorSurf, c ) )
ss << ", sc: " << c;
if( aColorTool->GetColor( aLabel, XCAFDoc_ColorCurv, c ) )
ss << ", cc: " << c;
}
wxLogTrace( MASK_OCE, ss.str().c_str() );
}
/**
* Dumps a label and the entire tree underneath it
*
* @param aLabel Label to convert
* @param aShapeTool Handle to shape tool being used
* @param aColorTool Handle to color tool being used
* @param aDepth Indentation level to offset labels (used recursively by dumpLabels)
*/
static void dumpLabels( TDF_Label aLabel, Handle( XCAFDoc_ShapeTool ) aShapeTool,
Handle( XCAFDoc_ColorTool ) aColorTool, int aDepth = 0 )
{
std::string indent( aDepth * 2, ' ' );
printLabel( aLabel, aShapeTool, aColorTool, indent.c_str() );
TDF_ChildIterator it;
for( it.Initialize( aLabel ); it.More(); it.Next() )
dumpLabels( it.Value(), aShapeTool, aColorTool, aDepth + 1 );
}
bool getColor( DATA& data, TDF_Label label, Quantity_ColorRGBA& color )
{
while( true )
{
if( data.m_color->GetColor( label, XCAFDoc_ColorSurf, color ) )
return true;
else if( data.m_color->GetColor( label, XCAFDoc_ColorCurv, color ) )
return true;
else if( data.m_color->GetColor( label, XCAFDoc_ColorGen, color ) )
return true;
label = label.Father();
if( label.IsNull() )
break;
};
return false;
}
void addItems( SGNODE* parent, std::vector< SGNODE* >* lp )
{
if( nullptr == lp )
return;
std::vector< SGNODE* >::iterator sL = lp->begin();
std::vector< SGNODE* >::iterator eL = lp->end();
SGNODE* item;
while( sL != eL )
{
item = *sL;
if( nullptr == S3D::GetSGNodeParent( item ) )
S3D::AddSGNodeChild( parent, item );
else
S3D::AddSGNodeRef( parent, item );
++sL;
}
}
bool readIGES( Handle( TDocStd_Document ) & m_doc, const char* fname )
{
IGESCAFControl_Reader reader;
IFSelect_ReturnStatus stat = reader.ReadFile( fname );
reader.PrintCheckLoad( Standard_False, IFSelect_ItemsByEntity );
if( stat != IFSelect_RetDone )
return false;
// Enable file-defined shape precision
if( !Interface_Static::SetIVal( "read.precision.mode", 0 ) )
return false;
// set other translation options
reader.SetColorMode(true); // use model colors
reader.SetNameMode(false); // don't use IGES label names
reader.SetLayerMode(false); // ignore LAYER data
if( !reader.Transfer( m_doc ) )
{
if( m_doc->CanClose() == CDM_CCS_OK )
m_doc->Close();
return false;
}
// are there any shapes to translate?
if( reader.NbShapes() < 1 )
{
if( m_doc->CanClose() == CDM_CCS_OK )
m_doc->Close();
return false;
}
return true;
}
bool readSTEP( Handle(TDocStd_Document)& m_doc, const char* fname )
{
wxLogTrace( MASK_OCE, wxT( "Reading step file %s" ), fname );
STEPCAFControl_Reader reader;
IFSelect_ReturnStatus stat = reader.ReadFile( fname );
if( stat != IFSelect_RetDone )
return false;
// Enable user-defined shape precision
if( !Interface_Static::SetIVal( "read.precision.mode", 1 ) )
return false;
// Set the shape conversion precision (default 0.0001 has too many triangles)
if( !Interface_Static::SetRVal( "read.precision.val", ADVANCED_CFG::GetCfg().m_OcePluginLinearDeflection ) )
return false;
// set other translation options
reader.SetColorMode( true ); // use model colors
reader.SetNameMode( false ); // don't use label names
reader.SetLayerMode( false ); // ignore LAYER data
if( !reader.Transfer( m_doc ) )
{
if( m_doc->CanClose() == CDM_CCS_OK )
m_doc->Close();
return false;
}
// are there any shapes to translate?
if( reader.NbRootsForTransfer() < 1 )
{
if( m_doc->CanClose() == CDM_CCS_OK )
m_doc->Close();
return false;
}
return true;
}
bool readSTEPZ( Handle(TDocStd_Document)& m_doc, const char* aFileName )
{
wxFileName fname( wxString::FromUTF8Unchecked( aFileName ) );
wxFFileInputStream ifile( fname.GetFullPath() );
wxFileName outFile( fname );
outFile.SetPath( wxStandardPaths::Get().GetTempDir() );
outFile.SetExt( wxT( "STEP" ) );
wxFileOffset size = ifile.GetLength();
wxBusyCursor busycursor;
if( size == wxInvalidOffset )
return false;
{
bool success = false;
wxFFileOutputStream ofile( outFile.GetFullPath() );
if( !ofile.IsOk() )
return false;
char *buffer = new char[size];
ifile.Read( buffer, size);
std::string expanded;
try
{
expanded = gzip::decompress( buffer, size );
success = true;
}
catch(...)
{}
if( expanded.empty() )
{
ifile.Reset();
ifile.SeekI( 0 );
wxZipInputStream izipfile( ifile );
std::unique_ptr<wxZipEntry> zip_file( izipfile.GetNextEntry() );
if( zip_file && !zip_file->IsDir() && izipfile.CanRead() )
{
izipfile.Read( ofile );
success = true;
}
}
else
{
ofile.Write( expanded.data(), expanded.size() );
}
delete[] buffer;
ofile.Close();
if( !success )
return false;
}
bool retval = readSTEP( m_doc, outFile.GetFullPath().mb_str() );
// Cleanup our temporary file
wxRemoveFile( outFile.GetFullPath() );
return retval;
}
SCENEGRAPH* LoadModel( char const* filename )
{
DATA data;
Handle(XCAFApp_Application) m_app = XCAFApp_Application::GetApplication();
m_app->NewDocument( "MDTV-XCAF", data.m_doc );
FormatType modelFmt = fileType( filename );
switch( modelFmt )
{
case FMT_IGES:
data.renderBoth = true;
if( !readIGES( data.m_doc, filename ) )
return nullptr;
break;
case FMT_STEP:
if( !readSTEP( data.m_doc, filename ) )
return nullptr;
break;
case FMT_STPZ:
if( !readSTEPZ( data.m_doc, filename ) )
return nullptr;
break;
default:
if( m_app->CanClose( data.m_doc ) == CDM_CCS_OK )
m_app->Close( data.m_doc );
return nullptr;
break;
}
data.m_assy = XCAFDoc_DocumentTool::ShapeTool( data.m_doc->Main() );
data.m_color = XCAFDoc_DocumentTool::ColorTool( data.m_doc->Main() );
// Check if the log mask is enabled otherwise the dump routine may be expensive before the wxLog call
if( wxLog::IsAllowedTraceMask( MASK_OCE ) )
{
dumpLabels( data.m_doc->Main(), data.m_assy, data.m_color );
}
// retrieve all free shapes
TDF_LabelSequence frshapes;
data.m_assy->GetFreeShapes( frshapes );
bool ret = false;
// create the top level SG node
IFSG_TRANSFORM topNode( true );
data.scene = topNode.GetRawPtr();
for( Standard_Integer i = 1; i <= frshapes.Length(); i++ )
{
const TDF_Label& label = frshapes.Value( i );
if( data.m_color->IsVisible( label ) )
{
if( processLabel( label, data, data.scene, nullptr ) )
ret = true;
}
}
if( !ret )
{
if( m_app->CanClose( data.m_doc ) == CDM_CCS_OK )
m_app->Close( data.m_doc );
return nullptr;
}
SCENEGRAPH* scene = (SCENEGRAPH*)data.scene;
// DEBUG: WRITE OUT VRML2 FILE TO CONFIRM STRUCTURE
#if ( defined( DEBUG_OCE ) && DEBUG_OCE > 3 )
if( data.scene )
{
wxFileName fn( wxString::FromUTF8Unchecked( filename ) );
wxString output;
if( FMT_STEP == modelFmt )
output = wxT( "_step-" );
else
output = wxT( "_iges-" );
output.append( fn.GetName() );
output.append( wxT( ".wrl" ) );
S3D::WriteVRML( output.ToUTF8(), true, data.scene, true, true );
}
#endif
// set to NULL to prevent automatic destruction of the scene data
data.scene = nullptr;
if( m_app->CanClose( data.m_doc ) == CDM_CCS_OK )
m_app->Close( data.m_doc );
return scene;
}
bool processShell( const TopoDS_Shape& shape, DATA& data, SGNODE* parent,
std::vector<SGNODE*>* items, Quantity_ColorRGBA* color )
{
TopoDS_Iterator it;
bool ret = false;
wxLogTrace( MASK_OCE, wxT( "Processing shell" ) );
for( it.Initialize( shape, false, false ); it.More(); it.Next() )
{
const TopoDS_Face& face = TopoDS::Face( it.Value() );
if( processFace( face, data, parent, items, color ) )
ret = true;
}
return ret;
}
bool processSolidOrShell( const TopoDS_Shape& shape, DATA& data, SGNODE* parent,
std::vector< SGNODE* >* items )
{
TDF_Label label;
std::string partID;
Quantity_ColorRGBA col;
Quantity_ColorRGBA* lcolor = nullptr;
data.hasSolid = shape.ShapeType() == TopAbs_SOLID;
wxLogTrace( MASK_OCE, wxT( "Processing solid" ) );
// Search the whole model first to make sure something exists (may or may not have color)
if( !data.m_assy->Search( shape, label ) )
{
static int i = 0;
std::ostringstream ostr;
ostr << "KMISC_" << i++;
partID = ostr.str();
}
else
{
bool found_color = false;
if( getColor( data, label, col ) )
{
found_color = true;
lcolor = &col;
}
// If the top-level label doesn't have the color information, search components
if( !found_color )
{
if( data.m_assy->Search( shape, label, Standard_False, Standard_True, Standard_True ) &&
getColor( data, label, col ) )
{
found_color = true;
lcolor = &col;
}
}
// If the components do not have color information, search all components without location
if( !found_color )
{
if( data.m_assy->Search( shape, label, Standard_False, Standard_False,
Standard_True ) &&
getColor( data, label, col ) )
{
found_color = true;
lcolor = &col;
}
}
// Our last chance to find the color looks for color as a subshape of top-level simple
// shapes.
if( !found_color )
{
if( data.m_assy->Search( shape, label, Standard_False, Standard_False,
Standard_False ) &&
getColor( data, label, col ) )
{
found_color = true;
lcolor = &col;
}
}
getTag( label, partID );
}
TopoDS_Iterator it;
IFSG_TRANSFORM childNode( parent );
SGNODE* pptr = childNode.GetRawPtr();
bool ret = false;
std::vector< SGNODE* >* component = nullptr;
if( !partID.empty() )
data.GetShape( partID, component );
if( component )
{
addItems( pptr, component );
if( nullptr != items )
items->push_back( pptr );
}
// instantiate resulting object
std::vector<SGNODE*> itemList;
TopAbs_ShapeEnum stype = shape.ShapeType();
if( stype == TopAbs_SHELL )
{
if( processShell( shape, data, pptr, &itemList, lcolor ) )
ret = true;
}
else
{
for( it.Initialize( shape, false, false ); it.More(); it.Next() )
{
const TopoDS_Shape& subShape = it.Value();
if( subShape.ShapeType() == TopAbs_SHELL )
{
if( processShell( subShape, data, pptr, &itemList, lcolor ) )
ret = true;
}
else
{
wxLogTrace( MASK_OCE, wxT( "Unsupported subshape in solid" ) );
}
}
}
if( !ret )
childNode.Destroy();
else if( nullptr != items )
items->push_back( pptr );
return ret;
}
bool processLabel( const TDF_Label& aLabel, DATA& aData, SGNODE* aParent,
std::vector<SGNODE*>* aItems )
{
std::string labelTag;
if( wxLog::IsAllowedTraceMask( MASK_OCE ) )
{
// can be expensive, guard it if we aren't logging
getTag( aLabel, labelTag );
}
wxLogTrace( MASK_OCE, wxT( "Processing label %s" ), labelTag );
TopoDS_Shape originalShape;
TDF_Label shapeLabel = aLabel;
if( !aData.m_assy->GetShape( shapeLabel, originalShape ) )
{
return false;
}
TopoDS_Shape shape = originalShape;
if( aData.m_assy->IsReference( aLabel ) )
{
wxLogTrace( MASK_OCE, wxT( "Label %s is ref, trying to pull up referred label" ),
labelTag );
if( !aData.m_assy->GetReferredShape( aLabel, shapeLabel ) )
{
return false;
}
labelTag = static_cast<int>( shapeLabel.Tag() );
// wxLogTrace( MASK_OCE, wxT( "Label %s referred" ), labelTag );
if( !aData.m_assy->GetShape( shapeLabel, shape ) )
{
return false;
}
}
// Now let's see if the original label has a location
// Labels can be used to place copies of other labels at a specific location
IFSG_TRANSFORM childNode( aParent );
SGNODE* pptr = childNode.GetRawPtr();
const TopLoc_Location& loc = originalShape.Location();
if( !loc.IsIdentity() )
{
wxLogTrace( MASK_OCE, wxT( "Label %d has location" ), static_cast<int>( aLabel.Tag() ) );
gp_Trsf T = loc.Transformation();
gp_XYZ coord = T.TranslationPart();
childNode.SetTranslation( SGPOINT( coord.X(), coord.Y(), coord.Z() ) );
wxLogTrace( MASK_OCE, wxT( "Translation %f, %f, %f" ), coord.X(), coord.Y(), coord.Z() );
gp_XYZ axis;
Standard_Real angle;
if( T.GetRotation( axis, angle ) )
{
childNode.SetRotation( SGVECTOR( axis.X(), axis.Y(), axis.Z() ), angle );
wxLogTrace( MASK_OCE, wxT( "Rotation %f, %f, %f, angle %f" ),
axis.X(), axis.Y(), axis.Z(), angle );
}
}
TopAbs_ShapeEnum stype = shape.ShapeType();
bool ret = false;
aData.hasSolid = false;
switch( stype )
{
case TopAbs_COMPOUND:
{
// assemblies will report a shape type of compound which isn't what we are after
// we will still process the children of assemblies but they should just be label references to the actual shapes
if( !aData.m_assy->IsAssembly( shapeLabel ) )
{
TopExp_Explorer xp;
for( xp.Init( shape, TopAbs_SOLID ); xp.More(); xp.Next() )
{
processSolidOrShell( xp.Current(), aData, pptr, aItems );
ret = true;
}
// Get all shells, avoid those that may be attached to solids
for( xp.Init( shape, TopAbs_SHELL, TopAbs_SOLID ); xp.More(); xp.Next() )
{
processSolidOrShell( xp.Current(), aData, pptr, aItems );
ret = true;
}
// Get all faces, avoid those that may be attached to shells
for( xp.Init( shape, TopAbs_FACE, TopAbs_SHELL ); xp.More(); xp.Next() )
{
const TopoDS_Face& face = TopoDS::Face( xp.Current() );
processFace( face, aData, pptr, aItems, nullptr );
ret = true;
}
}
}
break;
case TopAbs_SOLID:
if( processSolidOrShell( shape, aData, pptr, aItems ) )
ret = true;
break;
case TopAbs_SHELL:
if( processSolidOrShell( shape, aData, pptr, aItems ) )
ret = true;
break;
case TopAbs_FACE:
if( processFace( TopoDS::Face( shape ), aData, pptr, aItems, nullptr ) )
ret = true;
break;
default:
break;
}
if( nullptr != aItems )
aItems->push_back( pptr );
if( !aData.m_assy->IsSimpleShape( shapeLabel ) && shapeLabel.HasChild() )
{
wxLogTrace( MASK_OCE, wxT( "Label %s has children" ), labelTag );
TDF_ChildIterator it;
for( it.Initialize( shapeLabel ); it.More(); it.Next() )
{
if( processLabel( it.Value(), aData, pptr, aItems ) )
ret = true;
}
}
return ret;
}
bool processFace( const TopoDS_Face& face, DATA& data, SGNODE* parent, std::vector<SGNODE*>* items,
Quantity_ColorRGBA* color )
{
if( Standard_True == face.IsNull() )
return false;
bool reverse = ( face.Orientation() == TopAbs_REVERSED );
SGNODE* ashape = nullptr;
std::string partID;
TDF_Label label;
bool useBothSides = false;
// for IGES renderBoth = TRUE; for STEP if a shell or face is not a descendant
// of a SOLID then hasSolid = false and we must render both sides
if( data.renderBoth || !data.hasSolid )
useBothSides = true;
if( data.m_assy->FindShape( face, label, Standard_False ) )
getTag( label, partID );
if( !partID.empty() )
ashape = data.GetFace( partID );
if( ashape )
{
if( nullptr == S3D::GetSGNodeParent( ashape ) )
S3D::AddSGNodeChild( parent, ashape );
else
S3D::AddSGNodeRef( parent, ashape );
if( nullptr != items )
items->push_back( ashape );
if( useBothSides )
{
std::string id2 = partID;
id2.append( "b" );
SGNODE* shapeB = data.GetFace( id2 );
if( nullptr == S3D::GetSGNodeParent( shapeB ) )
S3D::AddSGNodeChild( parent, shapeB );
else
S3D::AddSGNodeRef( parent, shapeB );
if( nullptr != items )
items->push_back( shapeB );
}
return true;
}
TopLoc_Location loc;
Standard_Boolean isTessellate (Standard_False);
Handle( Poly_Triangulation ) triangulation = BRep_Tool::Triangulation( face, loc );
const double linDeflection = ADVANCED_CFG::GetCfg().m_OcePluginLinearDeflection;
if( triangulation.IsNull() || triangulation->Deflection() > linDeflection + Precision::Confusion() )
isTessellate = Standard_True;
if( isTessellate )
{
BRepMesh_IncrementalMesh IM(face, linDeflection, Standard_False,
glm::radians(ADVANCED_CFG::GetCfg().m_OcePluginAngularDeflection) );
triangulation = BRep_Tool::Triangulation( face, loc );
}
if( triangulation.IsNull() == Standard_True )
return false;
Quantity_ColorRGBA lcolor;
// check for a face color; this has precedence over SOLID colors
if( data.m_color->GetColor( face, XCAFDoc_ColorSurf, lcolor )
|| data.m_color->GetColor( face, XCAFDoc_ColorCurv, lcolor )
|| data.m_color->GetColor( face, XCAFDoc_ColorGen, lcolor ) )
{
color = &lcolor;
}
SGNODE* ocolor = data.GetColor( color );
// create a SHAPE and attach the color and data,
// then attach the shape to the parent and return TRUE
IFSG_SHAPE vshape( true );
IFSG_FACESET vface( vshape );
IFSG_COORDS vcoords( vface );
IFSG_COORDINDEX coordIdx( vface );
if( nullptr == S3D::GetSGNodeParent( ocolor ) )
S3D::AddSGNodeChild( vshape.GetRawPtr(), ocolor );
else
S3D::AddSGNodeRef( vshape.GetRawPtr(), ocolor );
std::vector< SGPOINT > vertices;
std::vector< int > indices;
std::vector< int > indices2;
gp_Trsf tx;
for( int i = 1; i <= triangulation->NbNodes(); i++ )
{
gp_XYZ v( triangulation->Node(i).Coord() );
vertices.emplace_back( v.X(), v.Y(), v.Z() );
}
for( int i = 1; i <= triangulation->NbTriangles(); i++ )
{
int a, b, c;
triangulation->Triangle(i).Get(a, b, c);
a--;
if( reverse )
{
int tmp = b - 1;
b = c - 1;
c = tmp;
}
else
{
b--;
c--;
}
indices.push_back( a );
indices.push_back( b );
indices.push_back( c );
if( useBothSides )
{
indices2.push_back( b );
indices2.push_back( a );
indices2.push_back( c );
}
}
vcoords.SetCoordsList( vertices.size(), &vertices[0] );
coordIdx.SetIndices( indices.size(), &indices[0] );
vface.CalcNormals( nullptr );
vshape.SetParent( parent );
if( !partID.empty() )
data.faces.emplace( partID, vshape.GetRawPtr() );
// The outer surface of an IGES model is indeterminate so
// we must render both sides of a surface.
if( useBothSides )
{
std::string id2 = partID;
id2.append( "b" );
IFSG_SHAPE vshape2( true );
IFSG_FACESET vface2( vshape2 );
IFSG_COORDS vcoords2( vface2 );
IFSG_COORDINDEX coordIdx2( vface2 );
S3D::AddSGNodeRef( vshape2.GetRawPtr(), ocolor );
vcoords2.SetCoordsList( vertices.size(), &vertices[0] );
coordIdx2.SetIndices( indices2.size(), &indices2[0] );
vface2.CalcNormals( nullptr );
vshape2.SetParent( parent );
if( !partID.empty() )
data.faces.emplace( id2, vshape2.GetRawPtr() );
}
return true;
}
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