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;
}
