bool PCB_EDIT_FRAME::ExportVRML_File( const wxString& aFullFileName,
double aMMtoWRMLunit, bool aExport3DFiles,
const wxString& a3D_Subdir )
{
wxString msg;
BOARD* pcb = GetBoard();
bool ok = true;
MODEL_VRML model3d;
model_vrml = &model3d;
std::ofstream output_file;
try
{
output_file.exceptions( std::ofstream::failbit );
output_file.open( TO_UTF8( aFullFileName ), std::ios_base::out );
// Switch the locale to standard C (needed to print floating point numbers like 1.3)
SetLocaleTo_C_standard();
// Begin with the usual VRML boilerplate
wxString name = aFullFileName;
name.Replace( wxT( "\\" ), wxT( "/" ) );
ChangeIllegalCharacters( name, false );
output_file << "#VRML V2.0 utf8\n";
output_file << "WorldInfo {\n";
output_file << " title \"" << TO_UTF8( name ) << " - Generated by Pcbnew\"\n";
output_file << "}\n";
// Set the VRML world scale factor
model3d.SetScale( aMMtoWRMLunit );
output_file << "Transform {\n";
// compute the offset to center the board on (0, 0, 0)
// XXX - NOTE: we should allow the user a GUI option to specify the offset
EDA_RECT bbbox = pcb->ComputeBoundingBox();
model3d.SetOffset( -model3d.scale * bbbox.Centre().x,
model3d.scale * bbbox.Centre().y );
output_file << " children [\n";
// Preliminary computation: the z value for each layer
compute_layer_Zs( model3d, pcb );
// board edges and cutouts
export_vrml_board( model3d, pcb );
// Drawing and text on the board
export_vrml_drawings( model3d, pcb );
// Export vias and trackage
export_vrml_tracks( model3d, pcb );
// Export zone fills
export_vrml_zones( model3d, pcb);
/* scaling factor to convert 3D models to board units (decimils)
* Usually we use Wings3D to create thems.
* One can consider the 3D units is 0.1 inch (2.54 mm)
* So the scaling factor from 0.1 inch to board units
* is 2.54 * aMMtoWRMLunit
*/
double wrml_3D_models_scaling_factor = 2.54 * aMMtoWRMLunit;
// Export footprints
for( MODULE* module = pcb->m_Modules; module != 0; module = module->Next() )
export_vrml_module( model3d, pcb, module, output_file,
wrml_3D_models_scaling_factor,
aExport3DFiles, a3D_Subdir );
// write out the board and all layers
write_layers( model3d, output_file, pcb );
// Close the outer 'transform' node
output_file << "]\n}\n";
}
catch( const std::exception& e )
{
wxString msg;
msg << _( "IDF Export Failed:\n" ) << FROM_UTF8( e.what() );
wxMessageBox( msg );
ok = false;
}
// End of work
output_file.exceptions( std::ios_base::goodbit );
output_file.close();
SetLocaleTo_Default(); // revert to the current locale
return ok;
}
/* Note1:
* When copying 3D shapes files, the new filename is build from
* the full path name, changing the separators by underscore.
* this is needed because files with the same shortname can exist in different directories
* Note 2:
* ExportVRML_File generates coordinates in board units (BIU) inside the file.
* (TODO: use mm inside the file)
* A general scale transform is applied to the whole file
* (1.0 to have the actual WRML unit im mm, 0.001 to have the actual WRML unit im meter
* Note 3:
* For 3D models built by a 3D modeler, the unit is 0,1 inch
* A specfic scale is applied to 3D models to convert them to BIU
*
*/
bool PCB_EDIT_FRAME::ExportVRML_File( const wxString & aFullFileName,
double aMMtoWRMLunit, bool aExport3DFiles,
const wxString & a3D_Subdir )
{
wxString msg;
FILE* output_file;
BOARD* pcb = GetBoard();
output_file = wxFopen( aFullFileName, wxT( "wt" ) );
if( output_file == NULL )
return false;
// Switch the locale to standard C (needed to print floating point numbers like 1.3)
SetLocaleTo_C_standard();
// Begin with the usual VRML boilerplate
wxString name = aFullFileName;
name.Replace(wxT("\\"), wxT("/" ) );
ChangeIllegalCharacters( name, false );
fprintf( output_file, "#VRML V2.0 utf8\n"
"WorldInfo {\n"
" title \"%s - Generated by Pcbnew\"\n"
"}\n", TO_UTF8( name ) );
/* The would be in BIU and not in meters, as the standard wants.
* It is trivial to embed everything in a transform node to
* fix it. For example here we build the world in inches...
*/
// Global VRML scale to export to a different scale.
// (aMMtoWRMLScale = 1.0 to export in mm)
double boardIU2WRML = aMMtoWRMLunit / MM_PER_IU;
fprintf( output_file, "Transform {\n" );
/* Define the translation to have the board centre to the 2D axis origin
* more easy for rotations...
*/
EDA_RECT bbbox = pcb->ComputeBoundingBox();
double dx = boardIU2WRML * bbbox.Centre().x;
double dy = boardIU2WRML * bbbox.Centre().y;
fprintf( output_file, " translation %g %g 0.0\n", -dx, dy );
fprintf( output_file, " children [\n" );
// Preliminary computation: the z value for each layer
compute_layer_Zs( pcb );
// Drawing and text on the board, and edges which are special
export_vrml_drawings( pcb );
// Export vias and trackage
export_vrml_tracks( pcb );
// Export zone fills
/* TODO export_vrml_zones(pcb);
*/
/* scaling factor to convert 3D models to board units (decimils)
* Usually we use Wings3D to create thems.
* One can consider the 3D units is 0.1 inch (2.54 mm)
* So the scaling factor from 0.1 inch to board units
* is 2.54 * aMMtoWRMLunit
*/
double wrml_3D_models_scaling_factor = 2.54 * aMMtoWRMLunit;
// Export footprints
for( MODULE* module = pcb->m_Modules; module != 0; module = module->Next() )
export_vrml_module( pcb, module, output_file,
wrml_3D_models_scaling_factor,
aExport3DFiles, a3D_Subdir,
boardIU2WRML );
/* Output the bagged triangles for each layer
* Each layer will be a separate shape */
for( int layer = 0; layer < LAYER_COUNT; layer++ )
write_and_empty_triangle_bag( output_file,
layer_triangles[layer],
pcb->GetLayerColor(layer),
boardIU2WRML );
// Same thing for the via layers
for( int i = 0; i < 4; i++ )
write_and_empty_triangle_bag( output_file,
via_triangles[i],
pcb->GetVisibleElementColor( VIAS_VISIBLE + i ),
boardIU2WRML );
// Close the outer 'transform' node
fputs( "]\n}\n", output_file );
// End of work
fclose( output_file );
SetLocaleTo_Default(); // revert to the current locale
return true;
}
static void export_vrml_module( MODEL_VRML& aModel, BOARD* aPcb, MODULE* aModule,
std::ofstream& aOutputFile,
double aVRMLModelsToBiu,
bool aExport3DFiles, const wxString& a3D_Subdir )
{
// Reference and value
if( aModule->Reference().IsVisible() )
export_vrml_text_module( &aModule->Reference() );
if( aModule->Value().IsVisible() )
export_vrml_text_module( &aModule->Value() );
// Export module edges
for( EDA_ITEM* item = aModule->GraphicalItems(); item; item = item->Next() )
{
switch( item->Type() )
{
case PCB_MODULE_TEXT_T:
export_vrml_text_module( static_cast<TEXTE_MODULE*>( item ) );
break;
case PCB_MODULE_EDGE_T:
export_vrml_edge_module( aModel, static_cast<EDGE_MODULE*>( item ),
aModule->GetOrientation() );
break;
default:
break;
}
}
// Export pads
for( D_PAD* pad = aModule->Pads(); pad; pad = pad->Next() )
export_vrml_pad( aModel, aPcb, pad );
bool isFlipped = aModule->GetLayer() == B_Cu;
// Export the object VRML model(s)
for( S3D_MASTER* vrmlm = aModule->Models(); vrmlm; vrmlm = vrmlm->Next() )
{
if( !vrmlm->Is3DType( S3D_MASTER::FILE3D_VRML ) )
continue;
wxString fname = vrmlm->GetShape3DFullFilename();
fname.Replace( wxT( "\\" ), wxT( "/" ) );
wxString source_fname = fname;
if( aExport3DFiles )
{
// Change illegal characters in filenames
ChangeIllegalCharacters( fname, true );
fname = a3D_Subdir + wxT( "/" ) + fname;
if( !wxFileExists( fname ) )
wxCopyFile( source_fname, fname );
}
/* Calculate 3D shape rotation:
* this is the rotation parameters, with an additional 180 deg rotation
* for footprints that are flipped
* When flipped, axis rotation is the horizontal axis (X axis)
*/
double rotx = -vrmlm->m_MatRotation.x;
double roty = -vrmlm->m_MatRotation.y;
double rotz = -vrmlm->m_MatRotation.z;
if( isFlipped )
{
rotx += 180.0;
NEGATE( roty );
NEGATE( rotz );
}
// Do some quaternion munching
double q1[4], q2[4], rot[4];
build_quat( 1, 0, 0, DEG2RAD( rotx ), q1 );
build_quat( 0, 1, 0, DEG2RAD( roty ), q2 );
compose_quat( q1, q2, q1 );
build_quat( 0, 0, 1, DEG2RAD( rotz ), q2 );
compose_quat( q1, q2, q1 );
// Note here aModule->GetOrientation() is in 0.1 degrees,
// so module rotation has to be converted to radians
build_quat( 0, 0, 1, DECIDEG2RAD( aModule->GetOrientation() ), q2 );
compose_quat( q1, q2, q1 );
from_quat( q1, rot );
aOutputFile << "Transform {\n";
// A null rotation would fail the acos!
if( rot[3] != 0.0 )
{
aOutputFile << " rotation " << std::setprecision( 3 );
aOutputFile << rot[0] << " " << rot[1] << " " << rot[2] << " " << rot[3] << "\n";
}
// adjust 3D shape local offset position
// they are given in inch, so they are converted in board IU.
double offsetx = vrmlm->m_MatPosition.x * IU_PER_MILS * 1000.0;
double offsety = vrmlm->m_MatPosition.y * IU_PER_MILS * 1000.0;
double offsetz = vrmlm->m_MatPosition.z * IU_PER_MILS * 1000.0;
if( isFlipped )
NEGATE( offsetz );
else // In normal mode, Y axis is reversed in Pcbnew.
NEGATE( offsety );
RotatePoint( &offsetx, &offsety, aModule->GetOrientation() );
aOutputFile << " translation " << std::setprecision( aModel.precision );
aOutputFile << (( offsetx + aModule->GetPosition().x) * aModel.scale + aModel.tx ) << " ";
aOutputFile << ( -(offsety + aModule->GetPosition().y) * aModel.scale - aModel.ty ) << " ";
aOutputFile << ( (offsetz * aModel.scale ) + aModel.GetLayerZ( aModule->GetLayer() ) ) << "\n";
aOutputFile << " scale ";
aOutputFile << ( vrmlm->m_MatScale.x * aVRMLModelsToBiu ) << " ";
aOutputFile << ( vrmlm->m_MatScale.y * aVRMLModelsToBiu ) << " ";
aOutputFile << ( vrmlm->m_MatScale.z * aVRMLModelsToBiu ) << "\n";
if( fname.EndsWith( wxT( "x3d" ) ) )
{
X3D_MODEL_PARSER* parser = new X3D_MODEL_PARSER( vrmlm );
if( parser )
{
// embed x3d model in vrml format
double vrml_to_x3d = aVRMLModelsToBiu;
parser->Load( fname, vrml_to_x3d );
try
{
aOutputFile << " children [\n ";
aOutputFile << TO_UTF8( parser->VRML2_representation() ) << " ]\n";
aOutputFile << " }\n";
}
catch( const std::exception& e )
{
delete parser;
throw;
}
}
}
else
{
aOutputFile << " children [\n Inline {\n url \"";
aOutputFile << TO_UTF8( fname ) << "\"\n } ]\n";
aOutputFile << " }\n";
}
}
}
static void export_vrml_module( BOARD* aPcb, MODULE* aModule,
FILE* aOutputFile,
double aVRMLModelsToBiu,
bool aExport3DFiles, const wxString & a3D_Subdir,
double boardIU2WRML )
{
// Reference and value
export_vrml_text_module( aModule->m_Reference );
export_vrml_text_module( aModule->m_Value );
// Export module edges
for( EDA_ITEM* item = aModule->m_Drawings; item != NULL; item = item->Next() )
{
switch( item->Type() )
{
case PCB_MODULE_TEXT_T:
export_vrml_text_module( dynamic_cast<TEXTE_MODULE*>(item) );
break;
case PCB_MODULE_EDGE_T:
export_vrml_edge_module( dynamic_cast<EDGE_MODULE*>(item) );
break;
default:
break;
}
}
// Export pads
for( D_PAD* pad = aModule->m_Pads; pad; pad = pad->Next() )
export_vrml_pad( aPcb, pad );
bool isFlipped = aModule->GetLayer() == LAYER_N_BACK;
// Export the object VRML model(s)
for( S3D_MASTER* vrmlm = aModule->m_3D_Drawings; vrmlm != 0; vrmlm = vrmlm->Next() )
{
wxString fname = vrmlm->m_Shape3DName;
if( fname.IsEmpty() )
continue;
if( ! wxFileName::FileExists( fname ) )
{
wxFileName fn = fname;
fname = wxGetApp().FindLibraryPath( fn );
if( fname.IsEmpty() ) // keep "short" name if full filemane not found
fname = vrmlm->m_Shape3DName;
}
fname.Replace(wxT("\\"), wxT("/" ) );
wxString source_fname = fname;
if( aExport3DFiles ) // Change illegal characters in short filename
{
ChangeIllegalCharacters( fname, true );
fname = a3D_Subdir + wxT("/") + fname;
if( !wxFileExists( fname ) )
wxCopyFile( source_fname, fname );
}
/* Calculate 3D shape rotation:
* this is the rotation parameters, with an additional 180 deg rotation
* for footprints that are flipped
* When flipped, axis rotation is the horizontal axis (X axis)
*/
double rotx = - vrmlm->m_MatRotation.x;
double roty = - vrmlm->m_MatRotation.y;
double rotz = - vrmlm->m_MatRotation.z;
if ( isFlipped )
{
rotx += 180.0;
NEGATE(roty);
NEGATE(rotz);
}
// Do some quaternion munching
double q1[4], q2[4], rot[4];
build_quat( 1, 0, 0, rotx / 180.0 * M_PI, q1 );
build_quat( 0, 1, 0, roty / 180.0 * M_PI, q2 );
compose_quat( q1, q2, q1 );
build_quat( 0, 0, 1, rotz / 180.0 * M_PI, q2 );
compose_quat( q1, q2, q1 );
// Note here aModule->GetOrientation() is in 0.1 degrees,
// so module rotation is aModule->GetOrientation() / 1800.0
build_quat( 0, 0, 1, aModule->GetOrientation() / 1800.0 * M_PI, q2 );
compose_quat( q1, q2, q1 );
from_quat( q1, rot );
fprintf( aOutputFile, "Transform {\n" );
// A null rotation would fail the acos!
if( rot[3] != 0.0 )
{
fprintf( aOutputFile, " rotation %g %g %g %g\n", rot[0], rot[1], rot[2], rot[3] );
}
// adjust 3D shape offset position
int offsetx = vrmlm->m_MatPosition.x;
int offsety = vrmlm->m_MatPosition.y;
double offsetz = vrmlm->m_MatPosition.z;
if ( isFlipped )
NEGATE(offsetz);
else // In normal mode, Y axis is reversed in Pcbnew.
NEGATE(offsety);
RotatePoint(&offsetx, &offsety, aModule->GetOrientation());
fprintf( aOutputFile, " translation %g %g %g\n",
(double) (offsetx + aModule->m_Pos.x) * boardIU2WRML,
- (double)(offsety + aModule->m_Pos.y) * boardIU2WRML, // Y axis is reversed in Pcbnew
offsetz + layer_z[aModule->GetLayer()] * boardIU2WRML);
fprintf( aOutputFile, " scale %g %g %g\n",
vrmlm->m_MatScale.x * aVRMLModelsToBiu,
vrmlm->m_MatScale.y * aVRMLModelsToBiu,
vrmlm->m_MatScale.z * aVRMLModelsToBiu );
fprintf( aOutputFile,
// " children [\n Inline {\n url \"file://%s\"\n } ]\n",
" children [\n Inline {\n url \"%s\"\n } ]\n",
TO_UTF8( fname ) );
fprintf( aOutputFile, " }\n" );
}
}
